kenwood - th-k4 service manual · th-k4at/k4e 2 disassembly for repair how to remove the case...

430MHz FM TRANSCEIVER

TH-K4AT/K4E© 2003-9 PRINTED IN JAPANB51-8660-00 (S) 497

SERVICE MANUAL

DISASSEMBLY FOR REPAIR ................................... 2

CIRCUIT DESCRIPTION ............................................ 6

SEMICONDUCTOR DATA ...................................... 14

COMPONENTS DESCRIPTION .............................. 15

PARTS LIST ............................................................. 17

EXPLODED VIEW.................................................... 23

PACKING ................................................................. 25

ADJUSTMENT ........................................................ 27

TERMINAL FUNCTION ........................................... 43

PC BOARD

TX-RX UNIT (X57-675X-XX) (A/3) ................... 44

TX-RX UNIT (X57-675X-XX) (B/3),(C/3) .......... 48

CONTENTSSCHEMATIC DIAGRAM.......................................... 50

LEVEL DIAGRAM .................................................... 55

BLOCK DIAGRAM ................................................... 56

BC-21 (WALL CHARGER) ....................................... 58

PB-43N (Ni-MH BATTERY PACK) .......................... 58

BT-14 (BATTERY CASE) ......................................... 59

PG-4Y (PROGRAMMING INTERFACE CABLE) ..... 59

MCP-1A (MEMORY CONTROL PROGRAM) ......... 59

SPECIFICATIONS ................................. BACK COVER

Knob (ENC)(K29-5159-03)

Knob (VOL)(K29-5150-03)

Cabinet assy(16key)(A02-3822-23)

Helical Antenna(T90-1019-25)

Key top (16key)(K29-9272-02)

Front glass(B10-2746-03)Knob

(PTT/LAMP/MON)(K29-9274-03)

Knob (ENC)(K29-5159-03)

Knob (VOL)(K29-5150-03)

Cabinet assy(4key)(A02-3823-23)

Helical Antenna(T90-1019-25)

Key top (4key)(K29-9276-02)

Front glass(B10-2746-03)Knob

(PTT/LAMP/MON)(K29-9274-03)

TH-K4AT TH-K4E

Cap(SP/MIC/DC IN)(B09-0675-03)

Cap(SP/MIC/DC IN)(B09-0675-03)

GMC

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TH-K4AT/K4E

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DISASSEMBLY FOR REPAIR

How to remove the case assembly from the

chassis1. Remove two screws (z) holding the chassis.2. Pull out two knobs (x) and remove two round nuts (c).3. Pull out the SP and MIC parts of the cap from jacks (v).4. Turn the unit over with the bottom of the chassis facing

upwards, and remove the chassis (n) from the caseassembly (b).

5. Remove the speaker lead (m) from the connector (CN2) ofthe TX-RX PC board (TX-RX unit A/3).

How to remove the PC board

Numeric key PC board (TX-RX unit B/3)

1. Remove three screws (,) on the numeric key PC board.2. Lift the numeric key PC board and remove it from the

connector (CN9) of the TX-RX PC board (.).

PTT PC board (TX-RX unit C/3)

3. Remove one screw on the PTT PC board (/).4. Pull the PTT PC board to the left and remove it from the

connector (CN6) of the TX-RX PC board (TX-RX unit A/3)(Ω).

TX-RX PC board (TX-RX unit A/3)

5. Remove the SP/MIC jack cover (≈).6. Remove two screws (ç) holding the shield

cover (antenna terminal section).7. Remove two screws (√) holding the shield

cover (final amplifier section).8. Remove eight screws (∫) on the TX-RX PC

board.9. Absorb solder from the antenna terminal (~)

with a solder absorber.Note: Do not melt the shadow plate (µ) when

moving the tip of the solder absorber closeto the antenna terminal.

10. Remove the TX-RX PC board from the chassis, then removethe encoder volume FPC (≤) from the flat cable connectorof the TX-RX PC board.

CN2

CN9

CN6

x

x

c

c

v

mb

,

,

.

ç

√

µ ∫∫

∫

∫∫Ω

/

∫

≈

~

≤

n

z

TX-RX unit (B/3)

TX-RX unit (C/3)

TX-RX unit (A/3)

TH-K4AT/K4E

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Soldering the antenna terminal

1. With the shield cover removed from the antenna terminalsection, install two screws on the PC board and bring thePC board into contact with the chassis (z).

2. Solder the antenna terminal with a soldering iron (x).

3. Remove the two screws installed in step 1 above, and installthe two screws again on the PC board together with theshield cover (c).

Replacing the final FET (Q12)

1. Remove the two screws holding the shield cover of thefinal FET section (z).

2. Remove solder from the shield cover completely with asolder absorber.

3. Remove the shield cover (x).

z

x

c

z

x

4. Apply the tips of soldering irons to all the four pins of the finalFET at the same time (c), heat them sufficiently, and removethe final FET (v). (Two persons should be required to do this.)

5. Remove all PC boards from the chassis.6. Confirm that there is no space between the radiation plate

installed on the foil side of the TX-RX PC board (TX-RX unitA/3) and the PC board (b). If there is any space betweenthe radiation plate and PC board, eliminate it by applyingthe tip of the soldering iron to the radiation plate.

7. Apply the tip of the soldering iron to the installation side of theradiation plate of the TX-RX PC board, put a little amount ofsolder to the radiation plate that is seen through a square holein the final FET installation section and melt the solder (n).

8. When the solder in step 7 is melted, place the final FET onthe PC board by aligning it with the silk of the final FETinstallation section of the PC board (m).

9. Release the soldering iron and confirm that the final FETand radiation plate have been soldered.

10. Solder the four pins of the final FET with the soldering iron.11. Install all the PC boards.12. Reinstall the shield cover removed in step 3 above in its

original position and install two screws.13. Solder the shield cover to the PC board.14. Install the chassis on the case assembly and assemble them.15. Readjust transmission power.Note: Since the FET is sensitive to static electricity, always

wear a grounding band. Use a highly insulated ceramicheater solder iron.

Radiation plate

TX-RX PC board

b

cv

m

n

This illustration isM2 type.

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Special care and attention required for assembly1. Gluing to the key top (MIC element section)

You must also glue on the speaker storage area and heapthe glue up until wealthy glued on the speaker storage areaand the key top for waterproofing the MIC element side ofthe key top. (Fig. 1)

Fig. 1

2. Bending the LCD hardware fixture (J21-8456-03) tabs

(1) Insert the tabs of the LCD hardware fixture into four holesin the LCD installing position of the TX-RX PCB (TX-RX unitA/3). (Fig. 2)

Heap the glue up until wealthy glued on the speakerstorage area and the key top (MIC element section).

Fig. 2

(2)By pressing the LCD hardware fixture from the componentside of the TX-RX PCB, you must bent all 4 tabs of the LCDhardware fixture being visible from the foil side until thebases of each tabs are folded at least 45 degrees (Fig. 3). Ifthe bending angle of the tabs of the LCD hardware fixtureis less than 45 degrees, a display error may occur.

Bending position

NG

NG

Min 45degrees

3. PTT PCB (TX-RX unit C/3) installation procedure

Installing the PTT PCB on the TX-RX PCB and chassis areas follows:(1) Insert the PTT PCB connector (CN7) into the TX-RX PCB

connector (CN6) lightly.(2)Push three parts of the PTT PCB to contact tightly with the

chassis. There may be a small gap between the connectors.(Fig. 4)

Note: A double-side adhesive tape (J99-0376-04) is usedbehind the PTT switch. When reassembling the PTTPCB to the chassis, press the PTT PCB (under the PTTswitch) so that the tape hold the PCB and chassissecurely.

Fig. 3

CN6Chassis

PTT switch

PTT PCB (C/3)

OK A bitclearance

Noclearance

NGCN6

CN7

CN7

ChassisPTT PCB (C/3)

PTT switch

Fig. 4

Push three parts of the PTT PCBto contact tightly with the chassis.

(3)Tighten one screw in the PTT PCB.


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4. Packing (G53-1572-02) TX/BUSY lamp installation

procedure

(1)To assure waterproofing, install the packing in the chassisgroove as shown in Fig. 5. (z)

(2) Install the packing TX/BUSY lamp section on the chassis.(x)

z

x

OKPacking

NGPacking

Chassis

Chassis

5. Packing (G53-1572-02) bottom installation procedure

(1)Before installing the numeric key PCB (TX-RX unit B/3) onthe chassis, push three parts of the packing to contact tightlywith the chassis as shown in Fig. 6. If the packing is not incontact with the chassis, there may be a gap between thetransceiver bottom case assembly and the battery, andwater may enter through the gap.

Fig. 5

OK NG

Push three parts of the packing tocontact tightly with the chassis.

Clearance NG

Fig. 6

6. Cautions for installing the chassis on the case assembly

(1)Verify that the packing (G53-1572-02) TX/BUSY lamp sectionis has been past through the hole in the illumination guidesection on the top of the case assembly. (Fig. 7)

LAMP

LOW

PTT

Fig. 7

(2)Align the speaker lead as shown fig.8. Do not place theleads over the key top section, LCD section or SP/MIC/DCIN cap section.

Do not fix this part of thekey top to the rib of thecase assembly.

7. Cautions for installing the key top on the case assembly

(1) Install the key top keypad section and the power switchsection on the rib of the case assembly.

(2)Do not fix the part between the key top keypad section andthe power switch section to the rib of the case assembly,but install it as shown in Fig. 8.

The packing TX/BUSY lamp section is hasbeen past through the hole in the illuminationguide section on the top of the case assembly.

Fig. 8

GMC

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CIRCUIT DESCRIPTION

Frequency Configuration

The frequency configuration is shown in Figure 1 andTable 1.

Fig. 1 Frequency configuration

361.150~431.145MHz(M2)391.150~401.145MHz(E)

400.000~469.995MHz(M2)430.000~439.995MHz(E)

400.000~469.995MHz(M2)430.000~439.995MHz(E)

TX/RX :

ANTSW

MCF

38.85MHz38.4MHz

12.8MHz

450kHzCF

MIX, IF,DET

AFAMP

SP

PREDRIVE

FINALTCXO

DRIVE

Triplerx 3

RFAMP

1st MIX

PLLVCO

MICAMP

MIC

ANT

Receiver System

Front End

The received signal from the antenna passes through a low-pass filter and then through a transmission/reception switchingcircuit (antenna switch) and enters the band-pass filter (L40,L41, L38).

The signal passing through the band-pass filter (L40, L41,L38) is amplified by with an RF amplifier (Q17), passes througha band-pass filter (L32, L34) and enters the first mixer (Q16).

These band-pass filters are tuned to a desired frequencyby varicaps (D21, D20, D19, D18).

A tuning voltage corresponding to the desired signal isapplied to each varicap through the BPF/APC terminal (pin 6)of the MPU (IC8) to tune to the receive frequency.

Double super heterodyneReception method 1st IF Frequency 38.85MHz (Lower)

2nd IF Frequency 450kHz (Lower)Transmission method VCO direct oscillation amplificationModulation Variable reactance phase modulation

Table 1 Basic configuration

ANTSW

SP

LPF

VCO

BPF/APCMPUIC8

PLL

IF AMP,DET

Triplerx 3

TCXO

BPFL41,L40,L38

BPFL32,L34

MIXERQ16

1st Local OSC(PLL)

RF AMPQ17

ANTMCFXF1

IF AMPQ24

FM ICIC3

Q23

2nd Local OSC

X1

AF AMPIC6

5R5R

D20D21

LV

6Tuning voltage

D18D19

38.85MHz

12.8MHz

First Mixer

The received signal passing through the band-pass filter(L32, L34) is mixed with the first local signal generated by theVCO by the first mixer (Q16) to produce a first IF signal (38.85MHz) (Lower heterodyne).

The first IF signal passes through a MCF (Monolithic crystalfilter: XF1) to remove unwanted components.

The first IF signal passing through the MCF (XF1) is amplifiedby an IF amplifier (Q24) and the resulting signal enters the FMIC (IC3).

Fig. 2 Receiver section configuration

Item Rating

Nominal center frequency (fo) 38.85MHzPass bandwidth ±6.0kHz or more at 3dBAttenuation bandwidth ±25kHz or less at 35dBUltimate attenuation 70dB or more (fo –910 kHz)Spurious response 40dB or more (fo +1MHz)Ripple 1dB or lessInsertion loss 4dB or lessTerminating impedance 610Ω ±5% // 3pF ±0.5pF

Table 2 MCF (L71-0619-05) characteristics (TX-RX unit XF1)

Item Rating

Nominal center frequency (fo) 450kHz3dB bandwidth ±6.5kHz or more50dB bandwidth ±15.5kHz or lessRipple 2dB or less (fo ±6.5kHz)Guaranteed attenuation 55dB or more

(fo ±18kHz to ±33kHz)50dB or more (fo ±100kHz)

Insertion loss 4dB or lessI/O matching impedance 1.5kΩ

Table 3 Ceramic filter (L72-0968-05) characteristics (TX-RX unit CF1)

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CIRCUIT DESCRIPTION

IF Circuit

The first IF signal (38.85 MHz) amplified by the IF amplifier (Q24)and the second IF signal (38.4 MHz) generated by tripling the 12.8MHz reference oscillator frequency of the TCXO (X1) by Q23, aremixed in the FM IC to produce a second IF signal (450 kHz) (Lowerheterodyne).

The second IF signal passes through a ceramic filter (CF1)to remove unwanted components.

The second IF signal passing through the ceramic filter (CF1)passes through the IF amplifier in the FM IC again and isdetected to produced an audio signal.

Squelch and Mute Circuit

A noise component is obtained by passing FM detectionoutput (FM IC pin 9) through an operational amplifier in the

CF1450kHz

CD1

AF OUT

AFM

SM

SQ

IC8MPU

49

9

48

SMV

SQV

16 15 14 13 12 11 10 9

1 2 3 4 5 6 7 8

MIX

LocalOSC

Buffer

RSSI

Quadraturedetector

LPF

NoiseAMP

IF AMP InverterAMP

1st IF input(38.85MHz)

IC3FM IC

2nd local OSC(38.4MHz)

5R

Q21AF FILTER

Q20AF MUTESWITCH

VOL IN

R135

C173 C174

R125

R126

Noisecomp

Rectifier

5R

SP

AF OUT AFFILTER

Q21

AF MUTESWITCH

Q20

IC6AF AMP

IC3FM IC

VR201AF VOLUME

DTMF/BEEP

REMIC8MPU

SPKAFO

SPGREM/TXD

40

46

9

J4SP JACK

Fig. 3 IF, Squelch, Mute and S meter circuit

Fig. 4 AF amplifier

FM IC and band-pass filter consisting of R125, R126, R135,C173, C174. The noise component is rectified in the FM IC toproduce a DC voltage, which is output from the N-REC terminal(pin 14) of the FM IC as squelch voltage.

The squelch voltage enters the SQ terminal (pin 48) of theMPU (IC8) and is compared with the reference voltage presetin the MPU to control audio signal ON/OFF.

When "L" is output from the AFM terminal (pin 9) of the MPU,the AF mute switch (Q20) is activated to mute the audio signal.

S Meter Circuit

The S meter voltage is output from the RSSI terminal (pin12) of the FM IC (IC3) and input to the SM terminal (pin 49) ofthe MPU. Then the voltage is converted from analog to digitalin the MPU to control the S meter display on the LCD.

AF Amplifier

The detected audio signal passes through an AF filter (Q21)and enters an AF mute switch (Q20).

After passing through the AF mute switch (Q20), the signalpasses through an AF volume (VR201) and is amplified to aspecified output level with an AF amplifier (IC6).

The audio signal amplified with the AF amplifier (IC6) isoutput through an internal speaker or an external speakerjack (J4).

The beep tone and the DTMF signal are output from theDTMF/BEEP terminal (pin 40) of the MPU (IC8), enters the AFamplifier (IC6) and is output as a monitor tone.

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CIRCUIT DESCRIPTION

Transmitter System

Microphone Amplifier Circuit

The audio signal from the microphone passes through ahigh-pass filter (IC5) and enters a microphone amplifier (IC16).

The signal passes through a pre-emphasis circuit, limiteramplifier and splatter filter inside the microphone amplifier.The splatter filter will remove distortion outside the audio band.

Modulation Circuit

The audio signal amplified by the microphone amplifier(IC16) passes through a semi-fixed volume (VR5) formodulation adjustment, and goes to the VCO modulationvaricap (D6) for variable reactance phase modulation.

Drive and Final Circuit

The output signal from VCO (Q1) passes through an RFamplifier (Q2, Q5, Q9) and drive amplifier (Q10, Q11), and isamplified by a power amplifier (Q12).

Transmission/Reception Switching Circuit

The signal amplified by the power amplifier (Q12) passesthrough a transmission/reception switching circuit and a low-pass filter, and is fed to the antenna.

MIC IC5

HPF

IC16MIC AMP

Pre-emphasis

Splatterfilter

VCO

Limiter6 1

Fig. 5 Microphone amplifier circuit

MIC

HPF MICAMP

IC16

ANTSW

D10,D11,L19D12,D13

VCO

Q1

LPF

IC5

VR5MAX DEV

Q2RF AMP

Q5RF AMP

Q9RF AMP

Q10DRIVE AMP

Q11DRIVE AMP

Q12POWER AMP

ANT

Fig. 6 Modulation, Drive, Final and

Transmission/reception switching circuit

APC Circuit

The APC (Automatic Power Control) circuit is used to obtaina stable transmission power and controls transmission outputby detecting the drain current of Q11 and Q12.

The transmission output can be changed in three levels:High, Mid, and Low.

The reference voltage is output from the BPF/APC terminal(pin 6) of the MPU (IC8) and the detection voltage generated byR70, R71 and R72 are fed to the APC differential amplifier (IC2).

The voltage in proportion to the difference betweenreference voltage and detection voltage is output from theBOUT terminal (pin 7) of IC2 as an APC voltage.

Q10

Q15

Q11

Q12

VG

G

Q58

VD

D

LPFD10

D11

ANT

D12

D13

RX

5T

B

1AOUT

IC2APC AMP

2A–IN

3A+IN

4

8

7

6

5GND

V+

BOUT

B–IN

B+IN

R72

R71

R70

Q14

B

Q13

+

TH

1

–t

Q55

7KAPC

51

6BPF/APC

THERM

16FINAL

IC8MPU

L19

Fig. 7 APC and Temperature protection circuit

The transmission/reception switching circuit consists ofD10, D11, L19, D12 and D13. These diodes are turned ON intransmit mode and OFF in receive mode to switch signals.

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CIRCUIT DESCRIPTION

The APC voltage controls the gate voltage of Q11 and Q12,and keeps transmission output stable.

The MPU detects power supply voltage and controls Q58by transmission power supply voltage and transmission power.For example, if the power supply voltage during transmission,is equal to or higher than approx. 10.5 V and if power is at Midor Low level, the APC voltage level applied to Q12 is reducedby Q58.

Temperature Protection Circuit

To prevent thermal destruction of the power amplifier (Q12),this circuit reduces APC voltage when Q12 temperature rises.

The MPU (IC8) detects temperature with a thermistor (TH1)and controls reference voltage to the APC circuit.

PLL System

PLL Circuit

A reference frequency of 5 kHz or 6.25 kHz is produced bydividing the 12.8 MHz reference frequency of the TCXO (X1)with PLL IC (IC1). Comparison frequency is produced by

TCXOPLL IC

IC1

LOOPFILTER

TO

TCXO5C5/0V

5MS5/0V

PLL5C5/0V

VCX1

12.8MHz

CLOCKDATA

LE

Fo/LDIF Rectifier

LPF Q6

RFAmp

D1-D4

VCO

5C5/0V

LV1~5V

SHIFTH/L

RippleFilter

Q4

OSC

Q1BuffAmp

Q2RF

Amp

Q5

SW

D8,D9

MODSHIFT

SW

Q3

MOD

12.8MHz

TXRX

5T 5/0V5R 5/0V

VR

1

Fig. 8 PLL and VCO circuit

amplifying VCO output with an RF amplifier (Q6) and dividingit with the PLL IC.

The PLL synthesizer with 5 kHz and 6.25 kHz step isconfigured by comparing phases of the reference frequencyand comparison frequency.

The phase difference between reference frequency andcomparison frequency passes through a charge pump in thePLL IC, then ripples are removed with a loop filter with low-range passing characteristics to produce VCO control voltage(lock voltage).

VCO Circuit

The VCO produces a desired frequency directly with aColpits oscillation circuit containing an oscillation transistor (Q1)used for both transmission and reception.

The VCO control voltage is applied to varicap (D1, D2, D3,D4) to produce a desired frequency.

The SHIFT terminal (pin 113) of the MPU (IC8) goes "H"during transmission, and the shift control switch (Q3) is turnedON to change oscillation frequency.

Fo/LD PLL LD

IC8MPU

IC1PLL IC

R32

D16

C40

R3514 102

5C

Fig. 9 Unlock detection circuit

Unlock Detection Circuit

When the PLL is unlocked, the waveform of the pulseoutput from the Fo/LD terminal (pin 14) of the PLL IC (IC1) isrectified with R32, D16, R35 and C40, and the Fo/LD terminalis made "L" level. The voltage at the Fo/LD terminal is detectedby the MPU to control transmission/reception switching timing.

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Power Supply Circuit

Charging Circuit

When an external power supply is connected to the DC INterminal, the constant-current circuit consisting of Q33 andD31 provides a constant current of approx. 110 mA to the Ni-MH battery.

If no external power supply is connected to the DC INterminal, the constant-current circuit does not function.

Power Supply Switching Circuit

The voltage supplied through the battery terminal or DC INterminal is branched in the power supply switching circuit asshown in Fig.10 and then supplied to the required components.

Battery Type Recognition Circuit

When the battery pack is attached to the transceiver, thebattery type is recognized with the T terminal on thetransceiver. This battery type recognition activates chargingfor the Ni-MH battery pack and displaying the battery meter.

+

-

T

B

J2

RN2701

XC6202PB 52FR

Q41

D32

D81

5T SW

Q37, Q38

2SK18305M

CHARGESW

RB051L-40

IC6D48,49D42,43,46D47,44

BATT CHARGE

5R SW

TK11250 CUCB

5.0V

TK11250 CM

AVR

5C SW

PROTECT

CPH3317

2SJ347

Q35

CHARGE

BTDET

Q34

Q57D33

IC12

AVR

2SB1184(Q,R)2SC4617(R)

IC4

5MS SW

Q55

5MV SW

Q36

RB521S-30

DC-IN DET

RN2105

AF AMP

2SB1184 (Q,R)

PROTECT5.0V

11.5V

AF/LAMP AVR

RN2105

Q53

PROTECT

THERMDET

2SK1830

B

RB051L-40

Q33

AVR

IC9

B

PROTECT

D36RB521S-30

D35

PROTECT

RB521S-30

PROTECT

D30RB521S-30

IC8MPU

D31DA221

CONSTANTCURRENT

BTEMP

DCDET

BATT TERMINAL7.5V Norminal(6.0 - 9.0V)

DC IN13.8V Norminal(12.0 - 16.0V)

IC1TCXOQ4,5,6D40,41

5R

5T

VR1ENC

5C

Q9,10,13D8,10TH1IC16Q47

5MV

IC3,17D9,14Q16,17Q22,23,24

IC5Q30

5MS

Fig. 10 Charging and Power supply switching circuit

Control System

Reset and Backup Circuit

When power is supplied to the transceiver, the 5M voltagegoes "H" as C303 is charged.

A rising edge of the 5M voltage is detected by the voltagedetection IC (IC11) and when its output (RESET) goes "H", thereset status of the MPU is released.

D35 R244 5M

5C

C307

R243

L63BATT 5V

AVR

IC9

IC8MPU

IC15EEPROM

Timing chart

PowerON

5V5M

0

PowerOFF

IN OUT

C303

+IC11

IN OUTRESET

IC10

IN OUT INT

5VRESET

0

5VINT

0

If the supplied voltage to the transceiver is reduced andthe 5M voltage falls below the detection voltage of the voltagedetection IC (IC10), the MPU detects it by an interruptprocessing, backs up data in EEPROM (IC15) and turns thepower off.

Fig. 11 Reset and Backup circuit

CIRCUIT DESCRIPTION

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Voltage Detection Circuit

Various voltages are input to the A/D port of the MPU (IC8)for processing.

Battery voltage is divided with resistors (R240, R241) andenters the BATT terminal (pin 52) of the MPU.

Battery voltage is used for battery meter indication duringtransmission or for alert tone processing when an abnormalpower supply voltage (approx. 16.5 V or higher) is applied.

Squelch voltage becomes DC voltage by detecting changesin noise voltage in the FM IC (IC3), and the signal is used forsquelch control.

The S meter voltage is output from the RSSI pin of the FMIC to control S meter display.

Detection of thermistor voltage (temperature) in the Ni-MHbattery during charging, detection of remote microphone keypressing and VOX voltage monitoring are performed througheach A/D port of the MPU.

Battery Save Circuit

If there is no signal (squelch off, scan off or no key operation)for longer than 10 seconds, the transceiver will enter thebattery save mode.

Battery save operation is performed by controlling Q57 withan output signal from the 5C (SAVE) terminal (pin 15) of theMPU.

The 5C ON/OFF cycle ratio during battery saving can be setfrom a transceiver menu.

5MS 5C

5MQ41

Q57

37

15

5MS

5C (SAVE)

IC8MPU

Fig. 12 Battery save circuit

LED Drive Circuit

The LCD and key illumination LEDs are lighted by controllingQ51 for the LCD and Q50 for keys according to the outputvoltage from the AF/LAMP AVR (Q37).

The BUSY and TX illumination LEDs are lighted by controllingQ47.

B

AF AMP

D33

Q38

Q37

56LAMP

IC8MPU

99RX LED

D48

D49

D42

D43

D46

Q50

D41BUSY LED

R227

D40

TX LED

R226

5C

5T

D42

D43

Q51

Q47

D42

D43

D44

D47

Fig. 13 LED drive circuit

CIRCUIT DESCRIPTION

GMC

Downloaded

TH-K4AT/K4E

12

Key and Encoder Input Circuit

The POWER key is assigned to the interrupt port (pin 95) ofthe MPU.

The PTT key is assigned to the dedicated port (pins 13, 14)of the MPU.

SETCALL#0∗

MONIMR987

LAMPVFO654

MENUF321

KIN0 KOUT0 KOUT1 KOUT2 KOUT3 PWRSW

95

S7POWERSW

J3

ROTARYENCODER

KIN1 KIN2 KIN3 KIN4

IC8MPU

PTTI

14

PTTE

13

ENCB

36

ENCA

35

SET

MONI

LAMP

MENUCALLMRVFOF

KIN0 KOUT0 KOUT1 KOUT2 KOUT3

95

S7

J3

KIN1 KIN2 KIN3 KIN4

IC8MPU

PTTI

14

PTTE

13

ENCB

36

ENCA

35

PWRSW

POWERSW ROTARY

ENCODER

Other keys composes a matrix and key presses are detectedby scanning them by software.

The encoder reads data using the interrupt port (pins 35and 36) of the MPU.

16 key (M2 type)

Fig. 14 Key and Encoder input circuit

4 key (E type)

CIRCUIT DESCRIPTION

TH-K4AT/K4E

13

CTCSS/DCS

The encode signal is generated by the MPU (IC8) and outputfrom the TONE terminal (pin 41) of the MPU.

The unwanted high-frequency components of the encodesignal output from the MPU are removed with a low-pass filter,and applied to VCO modulation input (MOD) and TCXO VCterminal for modulation.

The VCO and TCXO modulation levels are adjusted by VR6to produce flat modulation characteristics in low and highranges.

The decode signal is input to the SIGIN pin (pin 47) of theMPU after the waveform of the audio signal from the FM IC isrectified with a CTCSS/DCS filter (IC17). Then the set CTCSStone frequency and DCS code are detected by digital signalprocessing in the MPU to control muting.

LPFVR6

VCO

VOL OUT

MOD

X1TCXO

VC

IC16

1

6

MICAMP

IC5

HPF

MIC

IC6AF AMP

Vin

IC8MPU

TONE41

40

47 9SIG INVOX IN

DTMF/BEEP

IC17D24Q30 IC3

CTCSS/DCSFILTER

FMIC

50

VR

5

AMP

DTMF

The DTMF signal is generated by the MPU (IC8) and isoutput from the DTMF/BEEP terminal (pin 40) of the MPU.

The DTMF signal is mixed with an audio signal at the inputside of the AF amplifier (IC6), and is output as a monitor tone.

The DTMF signal is mixed with a modulation signal at theinput side of pre-emphasis in the microphone amplifier (IC16)and used as a transmit signal.

VOX

The IC5 and Q30 amplify the audio signal captured in themicrophone, and then the signal is converted into the DCVoltage D24 rectifies.

The DC voltage activates the MPU (IC8), and the VOX starts.

Fig. 15 CTCSS/DCS and DTMF, VOX

Serial Control

Serial control must be enabled from a transceiver menu sothat the REM/TXD pin of the speaker jack (J4) and the PTT(RXD) pin of the microphone jack (J3) function as TXD andRXD, respectively, when communicating with a personalcomputer.

SP

POUT10

HPF

IC5

IC6AF AMP

PTTE

TXD

RXD

REM

IC8MPU

SPKAFO

SPGREM/TXD

13

46J4

SP JACK

IM

5MS

+

–

PTTMIC

J3MIC JACK

5MC

12

11

MIC

Fig. 16 Serial control

CIRCUIT DESCRIPTION

TH-K4AT/K4E

14

MPU : 90522BPFFG139 (IC8)

Pin function

1 CLOCK O Common serial clock output2 DATA O Common serial data output3 EEPDI I Data input from EEPROM4 EEPCS O Chip select output to EEPROM5 VOX O VOX power supply switch L:ON

6 BPF/APC OBPF tuning voltage output, APC voltageoutput (PWM)

7 KAPC O APC ON/OFF switch L:APC ON8 VCC - Positive power supply9 AFM O AF mute switch L:Mute10 SPM O Speaker mute switch H:Mute11 RXD I UART data input line from PC (9600bps)12 TXD O UART data output line to PC (9600bps)13 PTTE I External [PTT] key input L:ON14 PTTI I [PTT] key input L:ON15 5C(SAVE) O Save power supply switch L:ON

16 FINAL OGate bias control of TX final amplifier

L:Bias ON17 SEG0 O LCD segment output 018 SEG1 O LCD segment output 119 SEG2 O LCD segment output 220 SEG3 O LCD segment output 321 SEG4 O LCD segment output 422 SEG5 O LCD segment output 523 SEG6 O LCD segment output 624 SEG7 O LCD segment output 725 SEG8 O LCD segment output 826 SEG9 O LCD segment output 927 SEG10 O LCD segment output 1028 SEG11 O LCD segment output 1129 SEG12 O LCD segment output 1230 SEG13 O LCD segment output 1331 SEG14 O LCD segment output 1432 SEG15 O LCD segment output 1533 VSS - GND

34 COR1 -Power supply stabilization (Connected toVSS through 0.1uF)

35 ENCA I Encoder A side input36 ENCB I Encoder B side input37 5MS O 5MS main power supply switch L:ON38 DVCC - Reference voltage input for DAC39 DVSS - Ground for DAC

40DTMF/

OEncode waveform output of DTMF/BEEP/

BEEP 1750Hz (D/A)

41 TONE OEncode waveform output of CTCSS/DCS(D/A)

42 AVCC - Positive power supply for ADC43 AVRH - Reference voltage input for ADC44 AVRL - Ground reference voltage input for ADC45 AVSS - Ground for ADC

46 REM IRemote control microphone key voltageinput (A/D)

47 SIGIN IDecode waveform input of CTCSS/DCS(A/D)

Pin Pin I/O FunctionNo. NamePin Pin I/O FunctionNo. Name48 SQ I Noise voltage input for squelch (A/D)49 SM I RSSI voltage input for S-meter (A/D)50 VOXIN I Microphone voltage input for VOX (A/D)51 THERM I TX temperature compensation input(A/D)52 BATT I Battery voltage input (A/D)

53 BTEMP IDetection of thermistor voltage (temperature)in the Ni-MH battety (A/D)

54 VCC - Positive power supply

55 CHARGE OBattery charge circuit power supply switch

H:ON56 LAMP O Lamp power supply switch H:ON

57 AFAMP OAF amplifier/Lamp AVR power supplyswitch H:ON

58 NAR O Wide/Narrow switching H:Narrow59 COM0 O LCD common output 060 COM1 O LCD common output 161 COM2 O LCD common output 262 COM3 O LCD common output 363 VSS - GND64 SEG16 O LCD segment output 1665 SEG17 O LCD segment output 1766 SEG18 O LCD segment output 1867 SEG19 O LCD segment output 1968 SEG20 O LCD segment output 2069 SEG21 O LCD segment output 2170 SEG22 O LCD segment output 2271 SEG23 O LCD segment output 2372 SEG24 O LCD segment output 2473 NC - Not used74 NC - Not used75 SEG25 O LCD segment output 2576 SEG26 O LCD segment output 2677 SEG27 O LCD segment output 2778 SEG28 O LCD segment output 2879 SEG29 O LCD segment output 2980 SEG30 O LCD segment output 3081 SEG31 O LCD segment output 3182 V0 - Not used83 V1 - Not used84 V2 - Not used85 V3 - LCD drive power supply 386 HST(VCC) I Not used (VCC)87 MD2 I “L” fixed88 MD1 I “H” fixed89 MD0 I “H” fixed90 RESET I Reset input L:Reset91 VSS - GND92 X0 I System clock (7.9872MHz)93 X1 O System clock (7.9872MHz)94 VCC - Positive power supply95 PWRSW I Power switch interrupt input (↓)96 INTUP I Power supply voltage interrupt input (↑)97 INTDW I Power supply voltage interrupt input (↓)

SEMICONDUCTOR DATA

TH-K4AT/K4E

15

98 DCDET IDC IN detection interrupt input (↓)

L:DC IN connected99 RXLED O Busy LED output H:ON

100 BSFT O Beat shift swiching output H:ON101 PLLEN O Serial enable output to PLL IC102 PLLLD I Lock detection input from PLL IC H: Lock103 KIN0 I Key matrix input 0104 KIN1 I Key matrix input 1105 KIN2 I Key matrix input 2106 KIN3 I Key matrix input 3107 KIN4 I Key matrix input 4108 TYPE I Market code bit input109 VUKEY I Detection of VHF or UHF, 4 key or 16 key110 MICM O Microphone mute switch H:Mute111 NOAA I Not used112 5R O RX power supply switch L:ON113 SHIFT O VCO shift switch L:RX, H:TX114 5T O TX power supply switch L:ON115 KOUT0 O Key matrix output 0116 KOUT1 O Key matrix output 1117 KOUT2 O Key matrix output 2118 KOUT3 O Key matrix output 3119 VSS - GND120 BTDET O Battery detection switch L:ON

SEMICONDUCTOR DATA / COMPONENTS DESCRIPTION

Pin Pin I/O FunctionNo. Name

IC1 PLL IC

IC2APC differentialamplifier

IC3 FM ICIC4 11.5V AVRIC5 HPF Active filterIC6 AF amplifierIC8 MPUIC9 5.0V AVR

IC104.4V voltage

MPU INT voltage detectiondetection

IC113.3V voltage

MPU Reset voltage detectiondetection

IC12 5.0V AVRIC15 EE PROMIC16 MIC amplifier Limiter, splatter filter

IC17CTCSS/DCS

Active filterfilter

Q1 VCOQ2 RF amplifier

Q3VCO shift

On TXcontrol switch

Q4 Ripple filterQ5,6,9 RF amplifierQ10,11 Drive amplifier

Q12 Power amplifier

Q13APC circuit

On TXoperation switch

Q14APC output

On TXswitch

Q15Q10 operation

On TXswitch

Q16 1st mixerQ17 RX 1st amplifier

Q20Audio mute

Audio mute when offswitch

Q21 Audio filter Active filter

Q22Wide/narrow

On when wide is selectedswitching

Q23 Tripler 2nd localQ24 IF amplifier 1st IF 38.85MHz

Q27Wide/narrow

On when wide is selectedswitching

Q29MIC mute

Mutes when ONswitch

Q30VOX detectionamplifier

Q31Q56 operation

Off when the speaker outputs audioswitch

Q33 Charge switch

Ref. No. Use/Function Operation/Condition/Compatibility

TX-RX UNIT (X57-675X-XX)

COMPONENTS DESCRIPTION

TH-K4AT/K4E

16

D34AVRconstant-voltage

D35Reverse current

Batteryprevention

D36Reverse current

DC INprevention

D40 TX LED Lights on TXD41 BUSY LED Lights on RX

D42-44 Key illuminationKey backlight illumination

D46,47 LED

D48,49LCD illumination

LCD backlight illuminationLED

D60Key typedetection

D61UHF typedetection

D62-65market codedetection

D69-72Reverse current

Key matrixprevention

D73 Voltage drop

D74Over inputprotection

D79,80 Limiter

D81Reverse currentprevention

COMPONENTS DESCRIPTION

Ref. No. Use/Function Operation/Condition/Compatibility Ref. No. Use/Function Operation/Condition/Compatibility

Q34Q33 operation

On when chargingswitch

Q35 DC IN detection H: DC IN detection

Q36Ni-MH temperature

On when temperature detection is activateddetection

Q37AF amplifier/Lamp AVR

Q38Q37 operation On when the speaker outputs the audioswitch or lamp lights

Q41 5MS switch On when 5MS is applied

Q47TX/BUSY LEDswitch

Q50 Key LED switch On when the key LED lights

Q51LCD LED

On when the LCD LED lightsswitch

Q52Beat shiftswitch

Q53 5R/5MV switch On when 5R or 5MV is appliedQ55 5T switch On when 5T is applied

Q56Speaker muteswitch

Q57 5C switch On when 5C is applied

Q58Q12 gate

Off when High power is selectedvoltage switch

D1-4VCO frequencycontrol

D5 Frequency shiftD6 VCO modulationD7 Speed up Ripple filterD8 RF switch On TXD9 RF switch On RX

D10-13 Antenna switch On TX

D14Reverse current

APC reference voltageprevention

D15APC outputvoltage limiter

D16 PLL lock detectionD18-21 RX BPF tuning

D22MIC mutecontrol

D24VOX detectionrectification

D25Speaker mutespeed up

D26 C246 discharge

D27MIC ALCrectification

D30Reverse current

Charge currentprevention

D31Constant-current

Constant-current chargecircuit

D32Reverse current

DC INprevention

D33Reverse current

Batteryprevention

TH-K4AT/K4E

17

∗ New Parts. indicates safety critical components.Parts without Parts No. are not supplied.Les articles non mentionnes dans le Parts No. ne sont pas fournis.Teile ohne Parts No. werden nicht geliefert.

L: Scandinavia K: USA P: CanadaY: PX (Far East, Hawaii) T: England E: EuropeY: AAFES (Europe) X: Australia M: Other Areas

Parts No. DescriptionAddressNewpartsDestination Destination

TH-K4AT/K4E

Ref. No. Parts No. DescriptionAddressNewparts

TH-K4AT/K4E (Y50-581X-XX)TX-RX UNIT (X57-675X-XX)

Ref. No.

PARTS LIST

E : TH-K4E M2 : TH-K4AT

F 3A,3C N82-2007-46 PAN HEAD TAPTITE SCREW(CASE)G 2A,2C N09-2433-05 PAN HEAD TAPTITE SCREW(FINAL FET)

39 2B,2D R39-0602-05 VARIABLE RESISTOR

40 1A,1C T07-0341-15 SPEAKER41 2F,3G ∗ T90-1019-25 HELICAL ANTENNA ACCESSORY

42 2F ∗ W08-0959-05 CHARGER(230V/13.8V) ACCESSORY E43 2E ∗ W09-0991-05 BATTERY ASSY(7.2V/1100MAH) ACCESSORY E

D40 B30-2156-05 LED(RED)D41 B30-2157-05 LED(YELLOW)D42-44 B30-2205-05 LED(YG) M2D42,43 B30-2205-05 LED(YG) ED46 B30-2205-05 LED(YG) E

D46,47 B30-2205-05 LED(YG) M2D48,49 B30-2237-05 LED(YG)

C1 CK73HB1C103K CHIP C 0.010UF KC2 ∗ CC73HCH1H390G CHIP C 39PF GC3 CC73HCH1H020B CHIP C 2.0PF BC4 CK73HB1H471K CHIP C 470PF KC5 CK73HB1A104K CHIP C 0.10UF K

C6 CK73HB1H471K CHIP C 470PF KC7 CC73HCH1H0R5B CHIP C 0.5PF BC8,9 CC73HCH1H050B CHIP C 5.0PF BC10 CK73HB1C103K CHIP C 0.010UF KC11 CK73HB1H471K CHIP C 470PF K

C13 CC73HCH1H0R5B CHIP C 0.5PF BC14 CK73HB1H471K CHIP C 470PF KC15 CC73HCH1H120J CHIP C 12PF JC17,18 CK73HB1H471K CHIP C 470PF KC19 CC73HCH1H080D CHIP C 8.0PF D

C20 CC73HCH1H050C CHIP C 5.0PF CC21 CK73HB1H471K CHIP C 470PF KC22 CC73HCH1H040C CHIP C 4.0PF CC24-26 CK73HB1H471K CHIP C 470PF KC27 C92-0628-05 CHIP-TAN 10UF 10WV

C29 C92-0712-05 CHIP-TAN 22UF 6.3WVC30 CK73HB1H471K CHIP C 470PF KC33 C92-0002-05 CHIP-TAN 0.22UF 35WVC34 C92-0656-05 TANTALUM C 2.2UF 6.3WVC35 C92-0001-05 CHIP-C 0.1UF 35WV

C37 CK73HB1H471K CHIP C 470PF KC38 CK73HB1C103K CHIP C 0.010UF KC40 CK73HB1A104K CHIP C 0.10UF KC41 C92-0507-05 CHIP-TAN 4.7UF 6.3WVC42 CK73HB1H471K CHIP C 470PF K

C43 CK73HB1C103K CHIP C 0.010UF KC44-46 CC73HCH1H101J CHIP C 100PF JC50 CC73HCH1H220J CHIP C 22PF JC51 CC73GCH1H220J CHIP C 22PF JC52 CC73HCH1H100D CHIP C 10PF D

C54 CK73HB1H471K CHIP C 470PF KC55 CK73HB1C103K CHIP C 0.010UF K

1 3A,2G ∗ A02-3817-02 CABINET ASSY(BATTERY CASE) M22 1A ∗ A02-3822-23 CABINET ASSY(16KEY) M23 1C ∗ A02-3823-23 CABINET ASSY(4KEY) E4 3A,3C ∗ A10-4066-11 CHASSIS5 3B,3D ∗ A82-0053-02 REAR PANEL

6 1B,1D ∗ B09-0675-03 CAP(SP/MIC/DC IN)7 1A,1C ∗ B10-2746-03 FRONT GLASS8 1B,1D ∗ B11-1805-03 ILLUMINATION GUIDE(LCD)9 2B,2D ∗ B11-1806-04 FILTER(LCD)10 1B,1D ∗ B38-0881-05 LCD

11 1G ∗ B62-1695-00 INSTRUCTION MANUAL(CHINESE) M211 1E,1G ∗ B62-1696-00 INSTRUCTION MANUAL(ENGLISH)11 1E ∗ B62-1697-00 INSTRUCTION MANUAL(SPANISH) E11 1E ∗ B62-1699-00 INSTRUCTION MANUAL(GERMAN) E11 1E ∗ B62-1702-00 INSTRUCTION MANUAL(ITALIAN) E

11 1E ∗ B62-1757-00 INSTRUCTION MANUAL(FRENCH) E11 1E ∗ B62-1758-00 INSTRUCTION MANUAL(DUTCH) E12 3A ∗ B72-2131-04 MODEL NAME PLATE(TH-K4AT) M212 3C ∗ B72-2132-04 MODEL NAME PLATE(TH-K4E) E

13 2B,2D ∗ E04-0443-05 RF COAXIAL RECEPTACLE(SMA)14 2A,2C ∗ E23-1234-04 TERMINAL(BATTERY)15 2B,2D ∗ E29-1199-04 INTER CONNECTOR(LCD)16 1A,1C ∗ E37-1106-05 LEAD WIRE WITH CONNECTOR(SP)

17 2A ∗ F10-2464-04 SHIELDING COVER(FINAL FET) M218 2A,2C ∗ F10-2465-04 SHIELDING COVER(ANT TERMINAL)19 2C ∗ F10-2494-04 SHIELDING COVER(FINAL FET) E20 2B,2D ∗ F15-1008-04 SHADOW PLATE(LCD)- ∗ G10-1317-04 FIBROUS SHEET(SP NET)- G11-4296-04 SHEET21 3B,3D G53-1529-04 PACKING(VOL/ENC)22 2A,2C ∗ G53-1572-12 PACKING(CASE)23 2B,2D ∗ G53-1589-03 PACKING(SP/MIC)

24 3E ∗ H52-1964-02 ITEM CARTON CASE(TH-K4E) E25 2H ∗ H52-1965-12 ITEM CARTON CASE(TH-K4AT) M226 2F ∗ H12-3146-01 PACKING FIXTURE E27 3G ∗ H12-3147-03 PACKING FIXTURE M2

28 2A,2C ∗ J19-5451-03 HOLDER(TERMINAL)29 1B,1D J21-8456-03 HARDWARE FIXTURE(LCD)30 2E,3G ∗ J29-0709-04 BELTHOOK ASSY ACCESSORY31 2A,2C ∗ J30-1284-04 SPACER(PTT KNOB)32 3E,2G J69-0342-05 HANDSTRAP ACCESSORY

33 2B,2D J82-0076-05 FPC(VOL/ENC)44 3A,3C J99-0376-04 ADHESIVE TAPE

34 1B,1D K29-5150-03 KNOB(VOL)35 1B,1D K29-5159-03 KNOB(ENC)36 1A ∗ K29-9272-02 KEY TOP(16KEY) M237 1A,1C ∗ K29-9274-03 KNOB(PTT/LAMP/MONI)38 1C ∗ K29-9276-02 KEY TOP(4KEY) E

A 2B,2D N09-1492-05 PAN HEAD SCREW(SMA)B 1B,1D N14-0569-04 CIRCULAR NUT(VOL/ENC)C 1B,1D N14-0573-04 CIRCULAR NUT(SMA)D 1A,1C N79-2035-46 PAN HEAD TAPTITE SCREW(PCB)E 2A,2C N79-2040-45 PAN HEAD TAPTITE SCREW(HOLDER,R PANEL)

TX-RX UNIT (X54-675X-XX) 0-21 : M2 2-71 : E

TH-K4AT/K4EPARTS LIST

18


DestinationRef. No. Parts No. DescriptionAddressNewparts DestinationRef. No. Parts No. DescriptionAddress

Newparts


C56 CK73HB1H471K CHIP C 470PF KC57 CC73HCH1H100D CHIP C 10PF DC61 CK73HB1H471K CHIP C 470PF KC64 CK73HB1H471K CHIP C 470PF KC65 CC73HCH1H100D CHIP C 10PF D

C66 CK73GB1C104K CHIP C 0.10UF KC67 CK73HB1H471K CHIP C 470PF KC68 CC73HCH1H100D CHIP C 10PF DC70 CK73GB0J105K CHIP C 1.0UF KC71 CK73HB1H471K CHIP C 470PF K

C72 CK73GB1C104K CHIP C 0.10UF KC73 CK73HB1H471K CHIP C 470PF KC75 CK73HB1H471K CHIP C 470PF KC76 CC73GCH1H080D CHIP C 8.0PF DC77 CC73GCH1H470J CHIP C 47PF J

C78 CK73HB1H471K CHIP C 470PF KC82 CK73HB1H471K CHIP C 470PF KC83 CK73HB1C103K CHIP C 0.010UF KC84 CK73HB1A104K CHIP C 0.10UF KC86 ∗ C93-0766-05 CERAMIC C 56PF J

C87 ∗ C93-0754-05 CERAMIC C 18PF JC88 CC73GCH1H200G CHIP C 20PF GC89 CC73GCH1H330J CHIP C 33PF JC90,91 CK73HB1H471K CHIP C 470PF KC93 CC73GCH1H030B CHIP C 3.0PF B

C94 CK73GB1H471K CHIP C 470PF KC95 CC73GCH1H020B CHIP C 2.0PF BC96 CC73GCH1H010B CHIP C 1.0PF BC97 CC73GCH1H040B CHIP C 4.0PF BC98 CC73GCH1H020B CHIP C 2.0PF B

C99 CC73GCH1H050B CHIP C 5.0PF BC100 CC73GCH1H020B CHIP C 2.0PF BC101 CC73GCH1H040B CHIP C 4.0PF BC102 CC73GCH1H030B CHIP C 3.0PF BC105-107 CK73HB1H471K CHIP C 470PF K

C108 CC73HCH1H101J CHIP C 100PF JC109-115 CK73HB1H471K CHIP C 470PF KC116 C92-0544-05 CHIP-TAN 10UF 4WVC117,118 CK73HB1H471K CHIP C 470PF KC124 CK73HF1C104Z CERAMIC C 0.1UF Z

C125 CC73HCH1H1R5C CHIP C 1.5PF CC126 CC73HCH1H100D CHIP C 10PF DC128 CK73HB1C103K CHIP C 0.010UF KC129 CC73HCH1H110J CHIP C 11PF JC130 CK73HB1H471K CHIP C 470PF K

C131-133 CK73HB1C103K CHIP C 0.010UF KC134 CK73HB1H471K CHIP C 470PF KC135,136 CC73HCH1H050C CHIP C 5.0PF CC137 CC73HCH1H070D CHIP C 7.0PF DC139 CK73HB1H471K CHIP C 470PF K

C140 CC73HCH1H040B CHIP C 4.0PF BC141,142 CK73HB1H471K CHIP C 470PF KC144 ∗ CC73HCH1H180G CHIP C 18PF GC145 CC73HCH1H080B CHIP C 8.0PF BC146 CC73HCH1H040B CHIP C 4.0PF B

C147 CK73HB1H471K CHIP C 470PF KC148 CC73HCH1H060B CHIP C 6.0PF BC152,153 CK73HB1H471K CHIP C 470PF KC156 CK73HB1H471K CHIP C 470PF KC157 ∗ CC73HCH1H180G CHIP C 18PF G

C158 CC73HCH1H130G CHIP C 13PF GC159 CC73HCH1H030B CHIP C 3.0PF BC160 CC73HCH1H130G CHIP C 13PF GC161 CC73HCH1H030B CHIP C 3.0PF BC162-164 CK73HB1H471K CHIP C 470PF K

C165 CC73HCH1H030B CHIP C 3.0PF BC166 CK73HB1C103K CHIP C 0.010UF KC167,168 CK73HB1A104K CHIP C 0.10UF KC169,170 CK73HB1A683K CHIP C 0.068UF KC171 CK73HB1H471K CHIP C 470PF K

C172 CK73HB1H182K CHIP C 1800PF KC173,174 ∗ CC73HCH1H181J CHIP C 180PF JC175 CC73HCH1H220J CHIP C 22PF JC176 CK73HB1A104K CHIP C 0.10UF KC177 C92-0628-05 CHIP-TAN 10UF 10WV

C178 CK73HB1C103K CHIP C 0.010UF KC179 CK73HB1A104K CHIP C 0.10UF KC180 CC73HCH1H121J CHIP C 120PF JC182,183 CK73HB1A104K CHIP C 0.10UF KC186 CC73HCH1H240J CHIP C 24PF J

C187 CC73HCH1H020C CHIP C 2.0PF CC188 CC73HCH1H240J CHIP C 24PF JC189 CK73HB1H471K CHIP C 470PF KC190-192 CK73HB1C103K CHIP C 0.010UF KC193 C92-0507-05 CHIP-TAN 4.7UF 6.3WV

C194 CK73HB1A104K CHIP C 0.10UF KC195 C92-0628-05 CHIP-TAN 10UF 10WVC196,197 CK73GB1C273K CHIP C 0.027UF KC198 CK73EF1C105Z CHIP C 1.0UF ZC200 CK73HB1C103K CHIP C 0.010UF K

C201 CK73HB1H122K CHIP C 1200PF KC202 CK73HB1H271K CHIP C 270PF KC203 CC73HCH1H121J CHIP C 120PF JC204 CK73HB1A333K CHIP C 0.033UF KC205 CK73HB1A473K CHIP C 0.047UF K

C206 ∗ CK73HB1C183K CHIP C 0.018UF KC207 CK73HB1C223K CHIP C 0.022UF KC208 CC73HCH1H820J CHIP C 82PF JC209 CK73HB1H471K CHIP C 470PF KC210 CK73HB1C103K CHIP C 0.010UF K

C211 CK73HB1H222K CHIP C 2200PF KC212 CK73HB1C123K CHIP C 0.012UF KC213 C92-0714-05 TANTALUM C 4.7UF 6.3WVC219 CK73HB1A473K CHIP C 0.047UF KC220 CK73HB1E472K CHIP C 4700PF K

C221,222 CK73HB1C103K CHIP C 0.010UF KC223 CK73HB1H471K CHIP C 470PF KC224 CK73HB1A104K CHIP C 0.10UF KC225 CK73GB0J105K CHIP C 1.0UF KC226 CK73HB1A104K CHIP C 0.10UF K

C227 C92-0587-05 CHIP-TAN 2.2UF 4WVC228,229 CK73HB1A104K CHIP C 0.10UF KC230 CK73FB1C105K CHIP C 1.0UF KC231 CK73HB1H471K CHIP C 470PF KC235,236 CK73HB1C103K CHIP C 0.010UF K

C237 C92-0628-05 CHIP-TAN 10UF 10WVC238-241 CK73HB1H471K CHIP C 470PF KC242 CK73HB1C103K CHIP C 0.010UF KC243 CK73HB1H471K CHIP C 470PF KC246 C92-1327-05 CHIP-TAN 100UF 10WV


19



Newparts


C247,248 CK73HB1A104K CHIP C 0.10UF KC249 CK73HB1H471K CHIP C 470PF KC250 CK73EF1C105Z CHIP C 1.0UF ZC252 CC73HCH1H101J CHIP C 100PF JC253 C92-0628-05 CHIP-TAN 10UF 10WV

C255 C92-0628-05 CHIP-TAN 10UF 10WVC256,257 CK73HB1H102K CHIP C 1000PF KC258 CK73HB1A104K CHIP C 0.10UF KC270-272 CK73HB1H471K CHIP C 470PF KC276 CK73HB1H471K CHIP C 470PF K

C279-285 CK73HB1H471K CHIP C 470PF KC286 CK73FB1C105K CHIP C 1.0UF KC290,291 CK73HB1H471K CHIP C 470PF KC293 CC73HCH1H470J CHIP C 47PF JC294,295 CC73HCH1H050C CHIP C 5.0PF C

C297 CK73HB1A104K CHIP C 0.10UF KC298 CK73HB1H471K CHIP C 470PF KC299 CK73FB1C105K CHIP C 1.0UF KC300 CK73HB1H471K CHIP C 470PF KC302 CK73HB1H471K CHIP C 470PF K

C303 C92-0605-05 TANTALUM C 150UF 6.3WVC304-306 CK73HB1H471K CHIP C 470PF KC307 CK73HB1A104K CHIP C 0.10UF KC308 CK73HB1H471K CHIP C 470PF KC309 CK73FB1C105K CHIP C 1.0UF K

C310 CK73EF1C105Z CHIP C 1.0UF ZC311 CK73GB1C104K CHIP C 0.10UF KC312,313 CK73HB1A393K CHIP C 0.039UF KC314 CK73HB1H471K CHIP C 470PF KC316 CK73GB1C104K CHIP C 0.10UF K

C317,318 CK73HB1H471K CHIP C 470PF KC319 C92-0628-05 CHIP-TAN 10UF 10WVC323,324 CK73HB1H471K CHIP C 470PF KC326 CK73HB1H471K CHIP C 470PF KC327 CK73HB1A104K CHIP C 0.10UF K

C328 CK73GB0J105K CHIP C 1.0UF KC329 CC73FCH1H120J CHIP C 12PF JC330,331 CK73HB1H471K CHIP C 470PF KC332 CK73HB1A104K CHIP C 0.10UF KC335,336 CK73HB1A104K CHIP C 0.10UF K

C338 CK73FB1C105K CHIP C 1.0UF KC339 CK73HB1A473K CHIP C 0.047UF KC344-348 CK73HB1H471K CHIP C 470PF KC349 CK73HB1A104K CHIP C 0.10UF KC351 CK73HB1C103K CHIP C 0.010UF K

C352-354 CK73HB1H471K CHIP C 470PF KC355,356 CK73HB1C103K CHIP C 0.010UF KC357 CK73EF1C105Z CHIP C 1.0UF ZC358 CK73HB1A473K CHIP C 0.047UF KC359,360 CK73HB1A104K CHIP C 0.10UF K

C361 CK73HB1H471K CHIP C 470PF KC363 CC73HCH1H100C CHIP C 10PF CC364 CC73FCH1H180J CHIP C 18PF JC365-367 CK73HB1H471K CHIP C 470PF KC368 CK73GB1H471K CHIP C 470PF K

C369-371 CK73HB1H471K CHIP C 470PF KC372 CK73GB1H471K CHIP C 470PF KC374 CC73HCH1H101J CHIP C 100PF J EC510 CK73HB1A473K CHIP C 0.047UF KC511 CK73HB1H471K CHIP C 470PF K

C512 CC73HCH1H101J CHIP C 100PF J E

CN1 E40-5915-05 FLAT CABLE CONNECTORCN2 E40-5929-05 PIN ASSYCN6 ∗ E40-6327-05 PIN ASSYCN7 E40-5630-05 PIN ASSY SOCKETCN8 ∗ E40-6308-05 PIN ASSY

CN9 ∗ E40-6309-05 PIN ASSY SOCKETCN15 E23-1081-05 TERMINALCN17 E23-1081-05 TERMINALJ2 E03-0190-05 DC JACKJ3 E11-0484-05 3.5D PHONE JACK(3.5D)

J4 E11-0483-05 2.5D PHONE JACK(2.5D)

CN10 F01-1032-05 RADIATION PLATEF1 F53-0286-05 FUSE(2.5A/32V)F3 F53-0287-05 FUSE(0.5A/32V)

CD1 L79-1474-05 TUNING COILCF1 L72-0968-05 CERAMIC FILTERL1,2 L40-2785-92 SMALL FIXED INDUCTOR(270NH)L3 ∗ L41-2278-14 SMALL FIXED INDUCTORL4 L41-6868-14 SMALL FIXED INDUCTOR

L5,6 L40-2785-92 SMALL FIXED INDUCTOR(270NH)L8 L40-1875-71 SMALL FIXED INDUCTOR(18NH)L9 L40-2275-71 SMALL FIXED INDUCTOR(22NH)L10 L40-1875-71 SMALL FIXED INDUCTOR(18NH)L11 L40-1575-71 SMALL FIXED INDUCTOR(15NH)

L13 L92-0149-05 FERRITE CHIPL14,15 ∗ L41-4763-14 SMALL FIXED INDUCTORL16 L34-4577-05 AIR-CORE COILL17 L34-4602-05 AIR-CORE COILL18 ∗ L41-2285-14 SMALL FIXED INDUCTOR

L19-22 L34-4564-05 AIR-CORE COILL23 L40-1092-81 SMALL FIXED INDUCTORL24 L40-2775-71 SMALL FIXED INDUCTOR(27NH)L25 L92-0149-05 FERRITE CHIPL26 ∗ L41-4785-14 SMALL FIXED INDUCTOR

L27 ∗ L41-6885-14 SMALL FIXED INDUCTORL28 L40-1275-71 SMALL FIXED INDUCTOR(12NH)L29 L40-1575-71 SMALL FIXED INDUCTOR(15NH)L30 L34-4564-05 AIR-CORE COILL32 L41-2778-14 SMALL FIXED INDUCTOR

L34 L41-2778-14 SMALL FIXED INDUCTORL35 ∗ L41-1585-14 SMALL FIXED INDUCTORL36 L41-5678-14 SMALL FIXED INDUCTORL38 L41-1278-14 SMALL FIXED INDUCTORL40 ∗ L41-4763-14 SMALL FIXED INDUCTOR

L41 L41-6868-14 SMALL FIXED INDUCTORL45,46 ∗ L41-5685-14 SMALL FIXED INDUCTORL49 L92-0131-05 FERRITE CHIPL50 L92-0137-05 FERRITE CHIPL53 L40-1275-71 SMALL FIXED INDUCTOR(12NH)

L54 L40-4768-71 SMALL FIXED INDUCTOR(4.7NH)L56 L41-6868-14 SMALL FIXED INDUCTORL58 ∗ L41-8285-14 SMALL FIXED INDUCTORL63 L92-0140-05 FERRITE CHIPL64 L40-4795-85 SMALL FIXED INDUCTOR(4.7UH)

L65 L40-2775-71 SMALL FIXED INDUCTOR(27NH)L67 L92-0161-05 BEADS COREL68 L92-0163-05 BEADS CORE


20



Newparts


X1 ∗ L77-1931-05 TCXO(12.8MHZ)X3 ∗ L77-1940-05 CRYSTAL RESONATOR(7.982MHZ)XF1 ∗ L71-0619-05 MCF(38.85MHZ)

CP1 ∗ RK75HA1J272J CHIP-COM 2.7K J 1/16WCP2 RK75GB1J392J CHIP-COM 3.9K J 1/16WCP31 RK75GB1J392J CHIP-COM 3.9K J 1/16WCP32-35 RK75HA1J102J CHIP-COM 1.0K J 1/16WR4 RK73HB1J102J CHIP R 1.0K J 1/16W

R5 RK73HB1J104J CHIP R 100K J 1/16WR6 RK73HB1J102J CHIP R 1.0K J 1/16WR7 RK73HB1J473J CHIP R 47K J 1/16WR8 RK73HB1J104J CHIP R 100K J 1/16WR9 RK73HB1J151J CHIP R 150 J 1/16W

R10 RK73HB1J470J CHIP R 47 J 1/16WR11 RK73HB1J154J CHIP R 150K J 1/16WR12 RK73HB1J470J CHIP R 47 J 1/16WR14 RK73HB1J332J CHIP R 3.3K J 1/16WR15 RK73HB1J562J CHIP R 5.6K J 1/16W

R16 RK73HB1J271J CHIP R 270 J 1/16WR17 RK73HB1J332J CHIP R 3.3K J 1/16WR18 RK73HB1J330J CHIP R 33 J 1/16WR19 RK73HB1J124J CHIP R 120K J 1/16WR20 RK73HB1J102J CHIP R 1.0K J 1/16W

R21 RK73HB1J472J CHIP R 4.7K J 1/16WR24 RK73HB1J122J CHIP R 1.2K J 1/16WR30 RK73HB1J102J CHIP R 1.0K J 1/16WR31 RK73HB1J222J CHIP R 2.2K J 1/16WR32 RK73HB1J102J CHIP R 1.0K J 1/16W

R33 RK73HB1J220J CHIP R 22 J 1/16WR34 RK73HB1J332J CHIP R 3.3K J 1/16WR35 RK73HB1J124J CHIP R 120K J 1/16WR36 RK73HB1J100J CHIP R 10 J 1/16WR37,38 RK73HB1J273J CHIP R 27K J 1/16W

R39 RK73HB1J271J CHIP R 270 J 1/16WR41 RK73HB1J271J CHIP R 270 J 1/16WR42 R92-1368-05 CHIP R 0 OHMR45 RK73HB1J332J CHIP R 3.3K J 1/16WR46 RK73HB1J103J CHIP R 10K J 1/16W

R47 RK73HB1J562J CHIP R 5.6K J 1/16WR49 RK73HB1J102J CHIP R 1.0K J 1/16WR50 RK73HB1J330J CHIP R 33 J 1/16WR51 RK73HB1J471J CHIP R 470 J 1/16WR52,53 RK73HB1J102J CHIP R 1.0K J 1/16W

R54 RK73HB1J470J CHIP R 47 J 1/16WR55 RK73HB1J472J CHIP R 4.7K J 1/16WR56 RK73HB1J103J CHIP R 10K J 1/16WR58 RK73HB1J470J CHIP R 47 J 1/16WR59 RK73HB1J123J CHIP R 12K J 1/16W

R60 RK73HB1J563J CHIP R 56K J 1/16WR61,62 RK73HB1J271J CHIP R 270 J 1/16WR64 R92-1368-05 CHIP R 0 OHMR70-72 RK73EB2ER39K CHIP R 0.39 K 1/4WR74,75 RK73HH1J104D RESISTOR 100K D 1/16W

R76-79 RK73HH1J154D RESISTOR 150K D 1/16WR80 RK73HB1J103J CHIP R 10K J 1/16WR81 RK73HB1J394J CHIP R 390K J 1/16WR82 RK73HB1J273J CHIP R 27K J 1/16WR83 RK73HB1J563J CHIP R 56K J 1/16W

R84 RK73HB1J104J CHIP R 100K J 1/16W

R85 RK73GB1J561J CHIP R 560 J 1/16WR86 RK73HB1J562J CHIP R 5.6K J 1/16WR88 RK73HB1J331J CHIP R 330 J 1/16WR90 RK73HB1J331J CHIP R 330 J 1/16WR91 RK73HB1J102J CHIP R 1.0K J 1/16W

R92 RK73HB1J332J CHIP R 3.3K J 1/16WR93 RK73HB1J470J CHIP R 47 J 1/16WR94 RK73HB1J331J CHIP R 330 J 1/16WR95 RK73HB1J184J CHIP R 180K J 1/16WR96 RK73HB1J104J CHIP R 100K J 1/16W

R97 RK73HB1J154J CHIP R 150K J 1/16WR98 RK73HB1J104J CHIP R 100K J 1/16WR99,100 RK73HB1J105J CHIP R 1.0M J 1/16WR101 RK73HB1J470J CHIP R 47 J 1/16WR103 RK73HB1J182J CHIP R 1.8K J 1/16W

R104 RK73HB1J151J CHIP R 150 J 1/16WR107 RK73HB1J104J CHIP R 100K J 1/16WR108 RK73HB1J124J CHIP R 120K J 1/16WR109 RK73HB1J104J CHIP R 100K J 1/16WR110,111 RK73HB1J105J CHIP R 1.0M J 1/16W

R115 RK73HB1J562J CHIP R 5.6K J 1/16WR116 RK73HB1J124J CHIP R 120K J 1/16WR117 RK73HH1J272D RESISTOR 2.7K D 1/16WR118 RK73HB1J273J CHIP R 27K J 1/16WR119 RK73HB1J182J CHIP R 1.8K J 1/16W

R120 RK73HB1J272J CHIP R 2.7K J 1/16WR122 RK73HB1J272J CHIP R 2.7K J 1/16WR123 RK73HB1J182J CHIP R 1.8K J 1/16WR124 RK73HB1J332J CHIP R 3.3K J 1/16WR125 RK73HB1J561J CHIP R 560 J 1/16W

R126 RK73HB1J273J CHIP R 27K J 1/16WR127 RK73HB1J470J CHIP R 47 J 1/16WR128 RK73HB1J332J CHIP R 3.3K J 1/16WR130 RK73HB1J101J CHIP R 100 J 1/16WR131 RK73HB1J334J CHIP R 330K J 1/16W

R132 RK73HB1J222J CHIP R 2.2K J 1/16WR133 RK73HB1J102J CHIP R 1.0K J 1/16WR134 RK73HB1J394J CHIP R 390K J 1/16WR135 RK73HB1J474J CHIP R 470K J 1/16WR137 RK73HB1J472J CHIP R 4.7K J 1/16W

R139 RK73HB1J472J CHIP R 4.7K J 1/16WR140 RK73HB1J103J CHIP R 10K J 1/16WR141,142 RK73HB1J102J CHIP R 1.0K J 1/16WR143 RK73HB1J273J CHIP R 27K J 1/16WR144 R92-1368-05 CHIP R 0 OHM

R145,146 RK73HB1J472J CHIP R 4.7K J 1/16WR147 RK73HB1J103J CHIP R 10K J 1/16WR148 RK73HB1J562J CHIP R 5.6K J 1/16WR151 RK73HB1J122J CHIP R 1.2K J 1/16WR152 RK73HB1J222J CHIP R 2.2K J 1/16W

R153 RK73HB1J102J CHIP R 1.0K J 1/16WR154 RK73HB1J472J CHIP R 4.7K J 1/16WR155,156 RK73HB1J104J CHIP R 100K J 1/16WR157,158 RK73HB1J334J CHIP R 330K J 1/16WR159 RK73HB1J124J CHIP R 120K J 1/16W

R160 RK73HB1J472J CHIP R 4.7K J 1/16WR161 RK73HB1J182J CHIP R 1.8K J 1/16WR162 RK73HB1J274J CHIP R 270K J 1/16WR163 RK73HB1J474J CHIP R 470K J 1/16WR164 RK73HB1J473J CHIP R 47K J 1/16W


21



Newparts


R165,166 RK73HB1J824J CHIP R 820K J 1/16WR167,168 RK73HB1J184J CHIP R 180K J 1/16WR170 ∗ RK73HH1J563D RESISTOR 56K D 1/16WR171 ∗ RK73HH1J393D RESISTOR 39K D 1/16WR172 RK73HB1J103J CHIP R 10K J 1/16W

R173 RK73HB1J153J CHIP R 15K J 1/16WR174 RK73HB1J564J CHIP R 560K J 1/16WR175 RK73HB1J222J CHIP R 2.2K J 1/16WR176 RK73HB1J824J CHIP R 820K J 1/16WR177 RK73HB1J103J CHIP R 10K J 1/16W

R178 R92-1368-05 CHIP R 0 OHMR179 RK73HB1J224J CHIP R 220K J 1/16WR180 RK73HB1J393J CHIP R 39K J 1/16WR181 RK73HB1J471J CHIP R 470 J 1/16WR182 RK73HB1J102J CHIP R 1.0K J 1/16W

R183 RK73HB1J333J CHIP R 33K J 1/16WR185 RK73HB1J274J CHIP R 270K J 1/16WR186 RK73HB1J683J CHIP R 68K J 1/16WR188 RK73HB1J470J CHIP R 47 J 1/16WR189 R92-1368-05 CHIP R 0 OHM

R190,191 RK73HB1J473J CHIP R 47K J 1/16WR192 RK73HB1J471J CHIP R 470 J 1/16WR193 RK73HB1J182J CHIP R 1.8K J 1/16WR194 RK73HB1J103J CHIP R 10K J 1/16WR195 RK73HB1J101J CHIP R 100 J 1/16W

R196 RK73HB1J103J CHIP R 10K J 1/16WR197 RK73HB1J101J CHIP R 100 J 1/16WR198 RK73HB1J103J CHIP R 10K J 1/16WR199 RK73HB1J102J CHIP R 1.0K J 1/16WR200 RK73HB1J103J CHIP R 10K J 1/16W

R201 RK73HB1J472J CHIP R 4.7K J 1/16WR202 RK73HB1J473J CHIP R 47K J 1/16WR203 RK73HB1J474J CHIP R 470K J 1/16WR204 RK73HB1J184J CHIP R 180K J 1/16WR205 RK73HB1J101J CHIP R 100 J 1/16W

R206 RK73HB1J150J CHIP R 15 J 1/16WR207 RK73HB1J102J CHIP R 1.0K J 1/16WR208 RK73HB1J100J CHIP R 10 J 1/16WR209 RK73HB1J104J CHIP R 100K J 1/16WR210 RK73FB2A120J CHIP R 12 J 1/10W

R211 RK73HB1J474J CHIP R 470K J 1/16WR212 RK73HB1J103J CHIP R 10K J 1/16WR213 RK73HB1J223J CHIP R 22K J 1/16WR214 RK73HB1J103J CHIP R 10K J 1/16WR215 RK73HB1J474J CHIP R 470K J 1/16W

R216 RK73HB1J103J CHIP R 10K J 1/16WR217 RK73HB1J821J CHIP R 820 J 1/16WR218 R92-1368-05 CHIP R 0 OHMR223 RK73HB1J104J CHIP R 100K J 1/16WR226 RK73HB1J221J CHIP R 220 J 1/16W

R227 RK73HB1J101J CHIP R 100 J 1/16WR230 RK73HB1J221J CHIP R 220 J 1/16W M2R231 RK73HB1J151J CHIP R 150 J 1/16WR234 RK73HB1J183J CHIP R 18K J 1/16WR235,236 RK73HB1J102J CHIP R 1.0K J 1/16W

R237 RK73HB1J104J CHIP R 100K J 1/16WR238,239 RK73HB1J102J CHIP R 1.0K J 1/16WR240 RK73HB1J104J CHIP R 100K J 1/16WR241-243 RK73HB1J334J CHIP R 330K J 1/16WR244 R92-1252-05 CHIP R 0 OHM J 1/16W

R246 RK73HB1J392J CHIP R 3.9K J 1/16WR248 RK73HB1J392J CHIP R 3.9K J 1/16WR252 RK73HB1J104J CHIP R 100K J 1/16WR253,254 RK73HB1J102J CHIP R 1.0K J 1/16WR255 R92-1368-05 CHIP R 0 OHM

R256 RK73HB1J102J CHIP R 1.0K J 1/16WR263 RK73HB1J103J CHIP R 10K J 1/16WR271 RK73HB1J120J CHIP R 12 J 1/16WR272 RK73HB1J472J CHIP R 4.7K J 1/16WR273 RK73HB1J102J CHIP R 1.0K J 1/16W

R275-277 RK73HB1J473J CHIP R 47K J 1/16WR282,283 R92-1368-05 CHIP R 0 OHMR285,286 R92-1368-05 CHIP R 0 OHMR289 R92-1368-05 CHIP R 0 OHMR310 RK73HB1J392J CHIP R 3.9K J 1/16W

R312 RK73HB1J472J CHIP R 4.7K J 1/16WR313 RK73HB1J332J CHIP R 3.3K J 1/16WR318 RK73HB1J102J CHIP R 1.0K J 1/16WR323 RK73HB1J472J CHIP R 4.7K J 1/16WR324,325 RK73HB1J473J CHIP R 47K J 1/16W

R326 R92-1368-05 CHIP R 0 OHMR328 RK73HB1J474J CHIP R 470K J 1/16WR330 RK73HB1J471J CHIP R 470 J 1/16WR332 RK73FB2A150J CHIP R 15 J 1/10WR335 RK73HB1J102J CHIP R 1.0K J 1/16W

R336 RK73HB1J221J CHIP R 220 J 1/16WR337 RK73HB1J471J CHIP R 470 J 1/16WR342,343 R92-1252-05 CHIP R 0 OHM J 1/16WR344 RK73HB1J470J CHIP R 47 J 1/16WR346 RK73HB1J101J CHIP R 100 J 1/16W

R347 RK73HB1J151J CHIP R 150 J 1/16WR348 RK73HB1J680J CHIP R 68 J 1/16WR351 RK73HB1J221J CHIP R 220 J 1/16WR352,353 R92-1368-05 CHIP R 0 OHMR354 RK73HB1J333J CHIP R 33K J 1/16W

R355 R92-1368-05 CHIP R 0 OHMVR1 R32-0658-05 SEMI FIXED VARIABLE RESISTOR(100K)VR5,6 R32-0668-05 SEMI FIXED VARIABLE RESISTOR(50K)

S7 ∗ S70-0485-05 TACT SWITCH (PTT)

MIC1 T91-0580-05 MIC ELEMENT

D1-4 HVC376B VARIABLE CAPACITANCE DIODED5 HSC277 DIODED6 1SV278 VARIABLE CAPACITANCE DIODED7 MA2S111 DIODED8,9 HSC277 DIODE

D10-13 HVC131 DIODED14 RB521-S30 DIODED15 MA8039 ZENER DIODED16 MA2S111 DIODED18-21 1SV305 VARIABLE CAPACITANCE DIODE

D22 1SS361 DIODED24 MA742 DIODED25 MA2S111 DIODED26 1SS388 DIODED27 RB706F-40 DIODE

D30 RB521S-30 DIODED31 DA221 DIODED32,33 RB051L-40 DIODE


22



Newparts


D34 ∗ MAZS0270H ZENER DIODED35,36 RB521S-30 DIODED60-62 MA2S111 DIODE ED61 MA2S111 DIODE M2D63-65 MA2S111 DIODE M2

D64,65 MA2S111 DIODE ED69-73 MA2S111 DIODED74 HSM88AS DIODED79,80 DA221 DIODED81 RB521S-30 DIODE

IC1 LMX2316TMX MOS ICIC2 NJM2904V MOS ICIC3 TA31136FN MOS ICIC4 ∗ XC6202PB52FR MOS ICIC5 NJM2107F MOS IC

IC6 TA7368F MOS ICIC8 ∗ 90522BPFFG139 MPUIC9 ∗ TK11250CM MOS ICIC10 ∗ S-80844CNNBB85 MOS ICIC11 ∗ S-80930CNNBG80 MOS IC

IC12 ∗ TK11250CUCB MOS ICIC15 AT25160N10SI27 ROM ICIC16,17 NJM2904V MOS ICQ1 2SK508NV(52K) FETQ2 ∗ 2SC5488 TRANSISTOR

Q3 2SK1830 FETQ4 2SC4617(R) TRANSISTORQ5,6 ∗ 2SC5488 TRANSISTORQ9 ∗ 2SC5488 TRANSISTORQ10 2SC4926YD TRANSISTOR

Q11 2SK2596 FETQ12 2SK3476 FETQ13 2SK1830 FETQ14 ∗ RN4902 TRANSISTORQ15 2SC4617(R) TRANSISTOR

Q16,17 3SK318 FETQ20 2SK1830 FETQ21 2SC4617(R) TRANSISTORQ22 ∗ RN2105 TRANSISTORQ23 KTC4082 TRANSISTOR

Q24 ∗ 2SC5488 TRANSISTORQ27 2SK1830 FETQ29 2SC4919 TRANSISTORQ30 2SC4617(R) TRANSISTORQ31 2SK1830 FET

Q33 2SB1184(Q,R) TRANSISTORQ34,35 2SK1830 FETQ36 2SJ347 FETQ37 2SB1184(Q,R) TRANSISTORQ38 2SC4617(R) TRANSISTOR

Q41 ∗ RN2105 TRANSISTORQ47 RN1701 TRANSISTORQ50 2SK1830 FETQ51 ∗ RN4902 TRANSISTORQ52 ∗ RN1107 TRANSISTOR

Q53 RN2701 TRANSISTORQ55 ∗ CPH3317 FETQ56 ∗ CPH3417 FETQ57 ∗ RN2105 TRANSISTORQ58 2SK1830 FET

TH1 ∗ B57331V2103J THERMISTORTH2-4 B57331V2104J THERMISTOR

TH-K4AT/K4E

23

EXPLODED VIEW (TH-K4AT)

Parts with the exploded numbers larger than 700 are not supplied.

A B

1

2

3

2

7C

B34

35

6

40

16D

DD

29

10

8

9

15

201817

36

37

D

TX-RX Unit (B/3)

TX-RX Unit (C/3)

TX-RX Unit (A/3)

Dx2D

D EEx2D

Dx2

D

2333

39

28

14

22

Ax2

1321

E

E

54

12701. STICKER

Fx2

1

Gx2

A : N09-1492-05B : N14-0569-04C : N14-0573-04D : N79-2035-46E : N79-2040-45F : N82-2007-46G : N09-2433-05

31

44

TH-K4AT/K4E

24 Parts with the exploded numbers larger than 700 are not supplied.

EXPLODED VIEW (TH-K4E)C D

1

2

3

3

7C

B34

35

6

40

16D

DD

29

10

8

9

15

201819

38

37

D

TX-RX Unit (B/3)

TX-RX Unit (C/3)

TX-RX Unit (A/3)

DD D

2333

39

28

14

22

1321

E

E

54

12

A : N09-1492-05B : N14-0569-04C : N14-0573-04D : N79-2035-46E : N79-2040-45F : N82-2007-46G : N09-2433-05

31

Dx2EEx2

D

Dx2

Ax2

701. STICKER

Fx2

Gx2

44

TH-K4AT/K4E

25

E F

1

2

3

703. PAMPHLET

11.INSTRUCTION MANUAL(B62-1696-00)(B62-1697-00)(B62-1699-00)(B62-1702-00)(B62-1757-00)(B62-1758-00)

41.HELICAL ANTENNA(T90-1019-25)42.CHARGER (230V/13.8V)

(W08-0959-05)

30. BELT HOOK ASSY(J29-0709-04)

32.HANDSTRAP(J69-0342-05)

24.ITEM CARTON CASE(H52-1964-02)

705. UK PLUG ATTACHMENT

26.PACKING FIXTURE(H12-3146-01)

704. WARRANTY CARD

PACKING (TH-K4E)


702. PAMPHLET (R & TTE)

43.BATTERY ASSY(7.2V/1100mAh)(W09-0991-05)

TH-K4AT/K4E

26

PACKING (TH-K4AT)


G H

1

2

3

11.INSTRUCTION MANUAL(B62-1695-00)(B62-1696-00)

703. PAMPHLET

25.ITEM CARTON CASE(H52-1965-12)41.HELICAL ANTENNA

(T90-1019-25)

32.HANDSTRAP(J69-0342-05)

27.PACKING FIXTURE(H12-3147-03)

30.BELT HOOK ASSY(J29-0709-04)

1.CABINET ASSY(BATTERY CASE)(A02-3817-02)

GMC

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TH-K4AT/K4E

27

ADJUSTMENT

Single Tone Mode

This mode is used to check the DTMF deviation.

Operation

16key (M2 type)

1. Press the [PTT] key on the transceiver to switch to thetransmission mode.

2. Press the [MONI] key to enter the single tone mode.3. Press any key from [1] to [8] keys to transmit a single tone.

The single tone is consisting of eight frequencies.[1] 697Hz[2] 770Hz[3] 852Hz[4] 941Hz[5] 1209Hz[6] 1336Hz[7] 1477Hz[8] 1633Hz

4. When the [MONI] key is pressed again during thetransmission, the transceiver switches to the receptionmode, the single tone mode turns OFF.

4key (E type)

1. Press the [PTT] key on the transceiver to switch to thetransmission mode.

2. Press the [MONI] key to enter the single tone mode.3. When the [VFO] key is pressed during the transmission, a

DTMF “D” dual tone (combination of 1633 Hz and 941 Hzfrequencies) is transmitted.

4. When the [MR] key is pressed during the transmission,single-tone 1633 Hz is transmitted.

5. When the [MONI] key is pressed again during thetransmission, the transceiver switch to the reception mode,the single tone mode is turned OFF.

• The single tone mode can be enabled only during thetransmission.

• When DTMF memory is transmitted in the single tonemode, the single tone mode turns OFF.

Adjustment Mode

This mode is used to replace or readjust the IC15 (EEPROM).Adjust the following adjustment items after setting the

transceiver to “Adjustment Mode”.

Adjustment Items

A. Overvoltage warning reference voltage (14.8V [DC IN])B. Battery terminal reference voltage (7.5 V [Battery terminal])C. Squelch (SQL1, SQL2)D. S-meter (Two segments in S-meter light, all segments in S-

meter light)E. RX BPF (Lower limit frequency, center frequency, upper

limit frequency)F. 7.5V TX H power (Lower limit frequency, center frequency,

upper limit frequency)

G. 7.5V TX M power (Lower limit frequency, center frequency,upper limit frequency)

H. 7.5V TX L power (Lower limit frequency, center frequency,upper limit frequency)

I. 13.8V TX H power (Lower limit frequency, center frequency,upper limit frequency)

J. 13.8V TX M power (Lower limit frequency, center frequency,upper limit frequency)

K. 13.8V TX L power (Lower limit frequency, center frequency,upper limit frequency)

L. DCS modulation balanceM.Tone deviation (Lower limit frequency, center frequency,

upper limit frequency)N. DCS deviation (Lower limit frequency, center frequency,

upper limit frequency)O. VOX sensitivity (Level 1, level 9)

Operation in Adjustment Mode

1. Turn the transceiver ON.2. Set the tone frequency to 151.4 Hz and the DCS code to

023 in Menu Mode to adjust tone and DCS modulation.3. Set Adjustment Mode by shorting two lands (SET) on the

component side of the TX-RX unit (A/3).

4. When the Adjustment Mode is set, the “Overvoltagewarning reference voltage (14.8V [DC IN])” adjustment itemis displayed. (The “ ” icon on the upper side of the LCDblinks while the transceiver is in the Adjustment Mode.)The current adjustment value is displayed at the lower digitsof the frequency display, and the value stored in theEEPROM is displayed on the memory channel numberdisplay.

5. The functions of transceiver keys in Adjustment Mode areas follows:

Short these two lands

SET

Adjustment item

Blink

The value stored in theEEPROM. (00-FE)

Current adjustmentvalue (00-FE)

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6. To exit the Adjustment Mode, turn the transceiver OFF.Note:

• When you press [LAMP] or [MONI] key, ensure the bossesof rubber keys align with the LAMP and MONI contacts ofthe PTT PCB (C/3).

• In the Adjustment Mode, Transmission and Receptionfrequencies becomes extensive.

A. Overvoltage warning reference voltage (14.8V [DC IN])

(1) Press the [LAMP] or [MONI] key on the transceiver to display“DC” on the LCD.The current voltage value is displayed at the lower digits ofthe frequency display, and the value stored in the EEPROMis displayed on the memory channel number display.

(2) Press the [MENU] key to write the current voltage valueinto the EEPROM.

B. Battery terminal reference voltage (7.5 V [Battery

terminal])

(1) Press the [LAMP] or [MONI] key on the transceiver to display“BAT” on the LCD.Press the [F] key and then the [PTT] key repeatedly to turnthe “ ” icon ON. The current voltage value is displayed atthe lower digits of the frequency display, and the valuestored in the EEPROM is displayed on the memory channelnumber display.

(2) Press the [PTT] key to enable the transmit mode.(3) Adjust the output voltage from DC power supply until the

voltage at the battery terminal becomes 7.5V while thetransceiver is transmitting.

(4) Press the [MENU] key to write the current voltage valueinto the EEPROM.

C. Squelch (SQL1, SQL2)

1Squelch (SQL1)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“SQ1” on the LCD.The detected DC voltage value to the current noise level isdisplayed at the lower digits of the frequency display, andthe value stored in the EEPROM is displayed on the memorychannel number display.

(2) Press the [MENU] key to write the current noise level valueinto the EEPROM.

2Squelch (SQL2)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“SQ2” on the LCD.

(2) Press the [MENU] key to write the current noise level valueinto the EEPROM.

Key name

PTT

LAMP

MONI

MENU

F

VFO

MR

CALL

Encoder

ADJUSTMENT

[key]

Transmit while this key is held down.Changes adjustment items. (Forward)When this key is pressed on the frequency display, it switches to the adjustment display.Changes adjustment items. (Back)When this key is pressed on the frequency display, it switches to the adjustment display.Write adjustment values (adjustment display)Sound error tone (frequency display)Function mode/MHz mode ONVFO modeWhen this key is pressed on the adjustment display, it switches to the frequency display.Memory modeWhen this key is pressed on the adjustment display, it switches to the frequency display.Switch between frequency display and adjustment display.Each time this key is pressed, the LCD switches between the frequency display andadjustment display.Increase or decrease adjustment values (00 - FE). (adjustment display)Increase or decrease frequency and memory channel number. (frequency display)

[F] key → [key]

Selecting a TX power (High/Mid/Low)

Lamp always ON

Squelch level setting mode

-

Function mode/MHz mode OFF

M→V (Memory shift)

M.IN (Memory registration)

-

Increase or decrease frequency (1MHzstep). (frequency display)

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D. S-meter (Two segments in S-meter light, all segments

in S-meter light)

1S-meter (Two segments in S-meter light)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“S1” on the LCD.The current RSSI level value is displayed at the lower digitsof the frequency display, and the value stored in theEEPROM is displayed on the memory channel numberdisplay.

(2) Press the [MENU] key to write the current RSSI level valueinto the EEPROM.

2S-meter (All segments in S-meter light)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“S9” on the LCD.

(2) Press the [MENU] key to write the current RSSI level valueinto the EEPROM.

E. RX BPF (Lower limit frequency, center frequency, upper

limit frequency)

1RX BPF (Lower limit frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“BPL” on the LCD.The current BPF tuning value is displayed at the lower digitsof the frequency display, and the value stored in theEEPROM is displayed on the memory channel numberdisplay.

(2) Press the [VFO], [MR] or [CALL] key to switch to thefrequency display.

(3) Turn the encoder to display the lower limit frequency onthe LCD.

(4) Press the [CALL] key to switch to the adjustment display.(5) Turn the encoder to change the current BPF tuning value

and adjust RX BPF.(6) Press the [MENU] key to write the current BPF tuning value

into the EEPROM.

2RX BPF (Center frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“BPC” on the LCD.


(3) Turn the encoder to display the center frequency on theLCD.

(4) Repeat steps (4) to (6) of “1RX BPF (Lower limitfrequency)” described on page 29.

3RX BPF (Upper limit frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“BPH” on the LCD.


(3) Turn the encoder to display the upper frequency on theLCD.

(4) Repeat steps (4) to (6) of “1RX BPF (Lower limitfrequency)” described on page 29.

F. 7.5V TX H power (Lower limit frequency, center

frequency, upper limit frequency)

17.5V TX H power (Lower limit frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“P7L” on the LCD.In this case, the “ ” icon appears.The current APC value is displayed at the lower digits ofthe frequency display, and the value stored in the EEPROMis displayed on the memory channel number display.



(4) Press the [CALL] key to switch to the adjustment display.(5) Press the [PTT] key to enable the transmit mode.(6) Adjust the output voltage from DC power supply until the


(7) Turn the encoder to change the current APC value and adjustthe transmission power.

ADJUSTMENT

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(8) Press the [MENU] key to write the current APC value intothe EEPROM.

27.5V TX H power (Center frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“P7C” on the LCD.In this case, the “ ” icon appears.



(4) Repeat steps (4) to (8) of “17.5V TX H power (Lower limitfrequency)” described on page 29.

37.5V TX H power (Upper limit frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“P7H” on the LCD.In this case, the “ ” icon appears.


(3) Turn the encoder to display the upper limit frequency onthe LCD.

(4) Repeat steps (4) to (8) of “17.5V TX H power (Lower limitfrequency)” described on page 29.

G. 7.5V TX M power (Lower limit frequency, center


17.5V TX M power (Lower limit frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display




(4) Press the [CALL] key to switch to the adjustment display.

(5) Press the [PTT] key to enable the transmit mode.(6) Adjust the output voltage from DC power supply until the




27.5V TX M power (Center frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display




(4) Repeat steps (4) to (8) of “17.5V TX M power (Lower limitfrequency)” described on page 30.

37.5VTX M power (Upper limit frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display



(3) Turn the encoder to display upper limit frequency on theLCD.

(4) Repeat steps (4) to (8) of “17.5V TX M power (Lower limitfrequency)” described on page 30.

H. 7.5V TX L power (Lower limit frequency, center


17.5V TX L power (Lower limit frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display


ADJUSTMENT

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(4) Press the [CALL] key to switch to the adjustment display.(5) Press the [PTT] key to enable the transmit mode.(6) Adjust the output voltage from DC power supply until the




27.5V TX L power (Center frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display




(4) Repeat steps (4) to (8) of “17.5V TX L power (Lower limitfrequency)” described on page 30.

37.5V TX L power (Upper limit frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display





I. 13.8V TX H power (Lower limit frequency, center


113.8V TX H power (Lower limit frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“P13L” on the LCD.In this case, the “ ” icon appears.

The current APC value is displayed at the lower digits ofthe frequency display, and the value stored in the EEPROMis displayed on the memory channel number display.



(4) Press the [CALL] key to switch to the adjustment display.(5) Press the [PTT] key to enable the transmit mode.(6) Turn the encoder to change the current APC value and adjust

the transmission power.(7) Press the [MENU] key to write the current APC value into

the EEPROM.

213.8V TX H power (Center frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display



(3) Turn the encoder to display center frequency on the LCD.(4) Repeat steps (4) to (7) of “113.8V TX H power (Lower

limit frequency)” described on page 31.

313.8V TX H power (Upper limit frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display



(3) Turn the encoder to display upper limit frequency on theLCD.

(4) Repeat steps (4) to (7) of “113.8V TX H power (Lowerlimit frequency)” described on page 31.

ADJUSTMENT

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J. 13.8V TX M power (Lower limit frequency, center


113.8V TX M power (Lower limit frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“P13L” on the LCD. In this case, the “ ” icon appears.The current APC value is displayed at the lower digits ofthe frequency display, and the value stored in the EEPROMis displayed on the memory channel number display.



(4) Press the [CALL] key to switch to the adjustment display.(5) Press the [PTT] key to enable the transmit mode.(6) Turn the encoder to change the current APC value and adjust

the transmission power.(7) Press the [MENU] key to write the current APC value into

the EEPROM.

213.8V TX M power (Center frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“P13C” on the LCD. In this case, the “ ” icon appears.



(4) Repeat steps (4) to (7) of “113.8V TX M power (Lowerlimit frequency)” described on page 32.

313.8V TX M power (Upper limit frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“P13H” on the LCD. In this case, the “ ” icon appears.



(4) Repeat steps (4) to (7) of “113.8V TX M power (Lowerlimit frequency)” described on page 32.

K. 13.8V TX L power (Lower limit frequency, center


113.8V TX L power (Lower limit frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“P13L” on the LCD. In this case, the “ ” icon appears.The current APC value is displayed at the lower digits ofthe frequency display, and the value stored in the EEPROMis displayed on the memory channel number display.



(4) Press the [CALL] key to switch to the adjustment display.(5) Press the [PTT] key to enable transmit mode.(6) Turn the encoder to change the current APC value and adjust

transmission power.(7) Press the [MENU] key to write the current APC value into

the EEPROM.

213.8V TX L power (Center frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display





313.8V TX L power (Upper limit frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display


ADJUSTMENT

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L. DCS modulation balance

(1) Press the [LAMP] or [MONI] key on the transceiver to display“DCS.BAL” on the LCD. Press the [F] key and then the[PTT] key repeatedly to turns the “ ” icon ON.

(2) When the [PTT] key is pressed to enable transmit mode, a100Hz square waveform is internally generated andmodulated.

(3) While observing the waveforms on the oscilloscope, turnthe semi-fixed volume (VR6) to adjust the DCS modulationwaveform to a square waveform.

(4) When the DCS modulation waveform becomes a squarewaveform, release the [PTT] key.

M.Tone deviation (Lower limit frequency, center


1Tone deviation (Lower limit frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“DVL” on the LCD.In this case, the “ ” icon appears. Press the [F] key andthen the [PTT] key repeatedly to turn the “ ” icon ON.The current adjustment value is displayed at the lower digitsof the frequency display, and the value stored in theEEPROM is displayed on the memory channel numberdisplay.



(4) Press the [CALL] key to switch to the adjustment display.(5) When the [PTT] key is pressed to enable transmit mode, a

preset tone frequency (151.4Hz) is internally generated andmodulated.

(6) Turn the encoder to change the current adjustment valueand adjust tone deviation.

(7) Press the [MENU] key to write the current adjustment valueinto the EEPROM.

2Tone deviation (Center frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“DVC” on the LCD.In this case, the “ ” icon appears. Press the [F] key andthen the [PTT] key repeatedly to turn the “ ” icon ON.



(4) Repeat steps (4) to (7) of “1Tone deviation (Lower limitfrequency)” described on page 33.

3Tone deviation (Upper limit frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“DVH” on the LCD.In this case, the “ ” icon appears. Press the [F] key andthen the [PTT] key repeatedly to turn the “ ” icon ON.



(4) Repeat steps (4) to (7) of “1Tone deviation (Lower limitfrequency)” described on page 33.

N. DCS deviation (Lower limit frequency, center frequency,

upper limit frequency)

1DCS deviation (Lower limit frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“DVL” on the LCD.In this case, the “ ” icon appears. Press the [F] key andthen the [PTT] key repeatedly to turn the “ ” icon ON.The current adjustment value is displayed at the lower digitsof the frequency display, and the value stored in theEEPROM is displayed on the memory channel numberdisplay.



ADJUSTMENT

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ADJUSTMENT

(4) Press the [CALL] key to switch to the adjustment display.(5) When the [PTT] key is pressed to enable transmit mode, a

preset DCS code (023) is internally generated andmodulated.

(6) Turn the encoder to change the current adjustment valueand adjust DCS deviation.

(7) Press the [MENU] key to write the current adjustment valueinto the EEPROM.

2DCS deviation (Center frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“DVC” on the LCD.In this case, the “ ” icon appears.



(4) Repeat steps (4) to (7) of “1DCS deviation (Lower limitfrequency)” described on page 33.

3DCS deviation (Upper limit frequency)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“DVH” on the LCD.In this case, the “ ” icon appears.



(4) Repeat steps (4) to (7) of “1DCS deviation (Lower limitfrequency)” described on page 33.

O. VOX sensitivity (Level 1, level 9)

1VOX sensitivity (Level 1)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“VOX1” on the LCD.Press the [F] key and then the [PTT] key repeatedly to turnthe “ ” icon ON.The current microphone input level value is displayed atthe lower digits of the frequency display, and the valuestored in the EEPROM is displayed on the memory channelnumber display.

(2) Input a specified AG signal to microphone input.(3) Press the [MENU] key to write the current microphone input

level value into the EEPROM.

2VOX sensitivity (Level 9)(1) Press the [LAMP] or [MONI] key on the transceiver to display

“VOX9” on the LCD.(2) Input a specified AG signal to microphone input.(3) Press the [MENU] key to write the current microphone input

level value into the EEPROM.

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ADJUSTMENT

1.Setting and Connect the optional PG-2W LCD total illumination display Initial configuration displayed afterresetting DC cable to the power supply. the full-reset.

DC IN terminal voltage: 13.8V1) Total illumination display

confirmationTurn the Transceiver Power ON by pressing the power switch while the [F] key is pressed.While the [F] key is pressed, all LCD segments light.

2) Full-resettingAfter confirming that all LCD segments have lighted described in the Step 1 above, releasethe [F] key, and then press the [F] key twice while “FL.RST?” appears on the display.

2 VCO After removing 3 screws fixingLock voltage the TX-RX unit (B/3), removeCheck the TX-RX (B/3) unit from the

CN9 connector of the TX-RXunit (A/3).1) Frequency: 400.000MHz DVM TX-RX LV Check 0.7V or more

RX 2) Frequency: 469.990MHz (A/3) 4.3V or less TX TX power: Low

1) Frequency: 400.000MHz 0.7V or morePTT: ON

2) Frequency: 469.990MHz 4.3V or lessPTT: ONAfter observing the VCOlock voltage, connect theTX-RX unit (B/3) to theoriginal position.

3.TX frequency 1) TX power: Low f. counter ANT TX-RX VR1 439.990MHz ±400HzAdjust Frequency: 439.990MHz (A/3)

PTT: ON4.Overvoltage Switch to Adjustment mode

warning and carry out the operationsreference for adjustment item A.voltage (Refer to page 28)Adjust/Check 1) LCD display: DC DC power supply [MENU] Write

Frequency: 435.050MHzDC IN terminal voltage: 14.8V

To exit from the AdjustmentMode, turn the transceiverpower OFF and then ON.2) Frequency: 435.050MHz Check Alarm sound and

DC IN terminal voltage: 17.5V display “DC ERR”message.

Common Section

Item ConditionMeasurement Adjustment Specifications/

Test equipment Unit Terminal Unit Parts Method Remarks

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1.RX BPF Squelch level: 0 Adjust 1) Frequency: 435.050MHz SSG TX-RX ANT VOL Turn the VOL knob 0.63V

SSG output: –53dBm (501 uV) Oscilloscope (A/3) SP knob to obtain 0.63V AFSSG MOD: 1kHz Distortion meter output.SSG DEV: 3kHz AF V.M

Switch to Adjustment mode Dummy loadand carry out the operationsfor adjustment item E.(Refer to page 29)2) LCD display: BPL Encoder Write Max Sensitivity

Frequency: 400.050MHz [MENU]SSG: –119dBm (0.25 uV)

3) SSG: –110dBm (0.707 uV) Check 12dB SINAD ormore

4) LCD display: BPC Encoder Write Max SensitivityFrequency: 435.050MHz [MENU]SSG: –120dBm (0.22 uV)

5) SSG: –120dBm (0.22 uV) Check 12dB SINAD ormore

6) LCD display: BPH Encoder Write Max SensitivityFrequency: 469.990MHz [MENU]SSG: –121dBm (0.199 uV)

7) SSG: –113dBm (0.501uV) Check 12dB SINAD ormore

2.IF response 1) Frequency : 469.990MHz SSG Check 12dB SINAD orCheck SSG Frequency: 450.565MHz Oscilloscope less

SSG output: –53dBm (501uV) Distortion meter Note: If theSSG MOD: 1kHz specification is notSSG DEV: 3kHz satisfied, repeat theAF output: 0.63V/8Ω operations for

2) Frequency : 400.050MHz “1. RX BPFSSG Frequency: 380.625MHz Adjust”.SSG output: –53dBm (501uV)

3) Frequency : 435.000MHzSSG Frequency: 415.575MHzSSG output: –53dBm (501uV)

3.Squelch / Switch to Adjustment mode SSG ANTS-meter and carry out the operationsWrite for adjustment item C.

(Refer to page 28)1) LCD display: SQ1 [MENU] Write Note: In the

Frequency: 435.050MHz Squelch adjustSSG: –125dBm (0.126uV) ments, all 4

Squelch 2) LCD display: SQ2 [MENU] Write adjusting pointsFrequency: 435.050MHz including the S-SSG: –120dBm (0.22uV) meter must be

adjusted.

ADJUSTMENT

Receiver section



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ADJUSTMENT



Switch to Adjustment modeand carry out the operationsfor adjustment item D.(Refer to page 29)

S-meter 3) LCD display: S1 SSG TX-RX ANT [MENU] WriteFrequency: 435.050MHz (A/3)SSG: –120dBm (0.22uV)

4) LCD display: S9 [MENU] WriteFrequency: 435.050MHzSSG: –105dBm (1.26uV)

4.Squelch Squelch level: 1 Check 1) Frequency: 435.050MHz SSG Check Open Squelch

SSG output: –123dBm (0.158uV) OscilloscopeSSG MOD: 1kHz Distortion meterSSG DEV: 3kHz

2) SSG: OFF Close Squelch5.S-meter 1) Frequency: 435.050MHz SSG Check Two segments

Check SSG output: –120dBm (0.22uV) in S-meter light.

2) SSG output: –105dBm (1.26uV) All segments inS-meter light.

6.Hum and 1) Frequency: 435.050MHz SSG TX-RX ANTnoise ratio SSG output: –53dBm (501uV) Oscilloscope (A/3) SPCheck SSG MOD: 1kHz Distortion meter

SSG DEV: 3kHz AF V.MAF Output: 0.63V/8ΩAF V.M = 0dB

2) SSG DEV: OFF Check –38dB or less7.AF distortion 1) Frequency: 435.050MHz Check 5% or less

Check SSG output: –53dBm (501uV)SSG MOD: 1kHzSSG DEV: 3kHzAF Output: 0.63V/8Ω

8.AF output 1) Frequency: 435.050MHz Check 400mW or moreCheck SSG output: –53dBm (501uV)

SSG MOD: 1kHzSSG DEV: 3kHzAF distortion: 10%

9.Current Squelch level: 5Drain 1) Frequency: 435.050MHz SSG Check 80mA or lessCheck SSG output: OFF Am meter

2) Frequency: 435.050MHz 400mA or lessSSG output: –53dBm (501uV)SSG MOD: 1kHzSSG DEV: 3kHzVOL knob: Max

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ADJUSTMENT

Transmitter section



1.TX powerWrite (Batteryterminal: 7.5V)

High power

Mid power

Low power

Battery terminal voltage:7.5V

Switch to Adjustment modeand carry out the operationsfor adjustment item F.(Refer to page 29)1)LCD display: P7L,

Frequency: 430.000MHzPTT: ON

2)LCD display: P7C, Frequency: 435.000MHzPTT: ON

3) LCD display: P7H, Frequency: 439.995MHz

PTT: ONSwitch to Adjustment modeand carry out the operationsfor adjustment item G.(Refer to page 30)4)LCD display: P7L,


5)LCD display: P7C, Frequency: 435.000MHz PTT: ON6)LCD display: P7H, Frequency: 439.995MHz PTT: ONSwitch to Adjustment modeand carryout the operationsfor adjustment item H.(Refer to page 30)7)LCD display: P7L,



9)LCD display: P7H, Frequency: 439.995MHzPTT: ON

DC power supplyDVM

Power meterAm meter

TX-RX(A/3)

BGND

ANT Encoder[MENU]

Encoder[MENU]

Encoder[MENU]

Encoder[MENU]

Encoder[MENU]

Encoder[MENU]

Encoder[MENU]

Encoder[MENU]

Encoder[MENU]

Write

Write

Write

Write

Write

Write

Write

Write

Write

Note: Do notuse the DC INterminal.

4.8W ±0.05W2.1A or less

1.5W ±0.05W1.4A or less

0.5W ±0.05W0.8A or less

Note: Adjust the output voltage from DC power supply until the voltage at the battery terminalbecomes 7.5V while the transceiver is transmitting.

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ADJUSTMENT



2.TX powerWrite (DC INterminal: 13.8V)

High power

Mid power

Low power

3.BatteryterminalreferencevoltageAdjust/Check

Connect the optional PG-2WDC cable to the power supply.DC IN terminal voltage: 13.8VSwitch to Adjustment modeand carry out the operationsfor adjustment item I.(Refer to page 31)1)LCD display: P13L,



3)LCD display: P13H, Frequency: 439.995MHz PTT: ONSwitch to Adjustment modeand carry out the operationsfor adjustment item J.(Refer to page 32)4)LCD display: P13L,



6)LCD display: P13H, Frequency: 439.995MHzPTT: ON

Switch to Adjustment modeand carry out the operationsfor adjustment item K.(Refer to page 32)7)LCD display: P13L, Frequency: 430.000MHz PTT: ON8) LCD display: P13C, Frequency: 435.000MHz PTT: ON9) LCD display: P13H, Frequency: 439.995MHz PTT: ONSwitch to Adjustment modeand carry out the operationsfor adjustment item B.(Refer to page 28)TX power: Low1)LCD display: BAT Frequency: 435.000MHz

PTT: ONBattery terminal voltage: 7.5V

DC power supplyDVM

Power meterAm meter

DC power supplyDVM

TX-RX(A/3)

DC IN

ANT

Encoder[MENU]

Encoder[MENU]

Encoder[MENU]

Encoder[MENU]

Encoder[MENU]

Encoder[MENU]

Encoder[MENU]

Encoder[MENU]

Encoder[MENU]

[MENU]LCD

Write

Write

Write

Write

Write

Write

Write

Write

Write

WriteCheck

5.0W - 5.1W2.0A or less

1.5W ±0.05W1.4A or less

0.5W ±0.05W0.8A or less

All segmentsare lighted.

(Adjust the output voltage from DC power supply until the voltage at thebattery terminal becomes 7.5V while the transceiver is transmitting.)

TH-K4AT/K4E

40

ANT

ANTMIC

LCD

VR6

VR5

Check

By tuning theVR6, adjustthe modulationwave untilif becomes thesquare wave.4.2kHzAccording to thelarger +, –.

Change the AGoutput level toobtain 3kHzdeviation.

4 to 6 seg-ments arelighted. ~

±0.1kHz

4mV - 12mV



4.DCSmodulationbalance

5.MAX DEV

6.MICsensitivity

Check

To exit from the AdjustmentMode, turn the transceiverpower OFF and then ON.2)Frequency: 435.000MHz

PTT: ONBattery terminal voltage: 6.4V

Switch to Adjustment modeand carry out the operationsfor adjustment item L.(Refer to page 33)Detector: +P, –PHPF: OFF LPF: 3kHzDe-emphasis: OFFTX power: Low1)LCD display: DCS.BAL


To exit from the AdjustmentMode, turn the transceiverpower OFF and then ON.MIC terminal inputAG: 1kHz/80mVDetector: +P, –PHPF: OFF LPF: 15kHzDe-emphasis: OFFTX power: Low1)Frequency: 435.000MHz PTT: ONMIC terminal inputAG: 1kHzDetector: P-P/2HPF: OFFLPF: 15kHzDe-emphasis: OFFTX power: Low1)Frequency: 435.000MHz

PTT: ON

DC power supplyDVM

Linear detectorOscilloscope

Linear detectorAGOscilloscope

TX-RX(A/3)

ADJUSTMENT

(Adjust the output voltage from DC power supply until the voltage at thebattery terminal becomes 6.4V while the transceiver is transmitting.)

TH-K4AT/K4E

41



7.Tonedeviation

8.DCSdeviation

9.VOXSensitivityWrite

Switch to Adjustment modeand carry out the operationsfor adjustment item M.(Refer to page 33)Detector: P-P/2HPF: OFFLPF: 3kHzDe-emphasis: OFFTX power: Low1)LCD display: DVL,


2)LCD display: DVC, Frequency: 435.000MHzPTT: ON

3)LCD display: DVH, Frequency: 439.990MHz PTT: ONSwitch to Adjustment modeand carry out the operationsfor adjustment item N.(Refer to page 33)Detector: +P HOLDHPF: OFFLPF: 3kHzDe-emphasis: OFFTX power: Low1)LCD display: DVL,


2)LCD display: DVC, Frequency: 435.000MHzPTT: ON

3)LCD display: DVH, Frequency: 439.990MHzPTT: ON

Switch to Adjustment modeand carry out the operationsfor adjustment item O.(Refer to page 34)TX power: Low1)LCD display: VOX1

Frequency: 435.000MHzAG: 1kHz/80mV

2)LCD display: VOX9Frequency: 435.000MHzAG: 1kHz/1.5mV

Linear detector

AG

ANT

MIC

Encoder[MENU]

Encoder[MENU]

Encoder[MENU]

Encoder[MENU]

Encoder[MENU]

Encoder[MENU]

[MENU]

[MENU]

Write

Write

Write

Write

Write

Write

Write

Write

0.8kHz ±50Hz

0.8kHz ±50Hz

ADJUSTMENT

TX-RX(A/3)

TH-K4AT/K4E

42

Adjustment points

TX-RX unit (A/3)

Component side view

J2DC IN

J3MIC

J4SP

VR1

VR5

VR6

LV

B

LCD

ANT

BTEMP

GND

SET

TX-RX UNIT (A/3)Component side view

10. VOXOperationCheck

11. DTMFDEVCheck

12. 1750HzTone DEVCheck

(E type only)

13. ProtectionCheck

(DC INterminal: 13.8V)

To exit from the AdjustmentMode, turn the transceiverpower OFF and then ON.1)Frequency: 435.000MHz

VOX Gain: 4AG: OFF

2)AG: 1kHz/100mVDetector: P-P/2HPF: OFFLPF: 15kHzDe-emphasis: OFFTX power: Low

1)Frequency: 435.000MHz Send DTMF code “D”

Detector: P-P/2HPF: OFFLPF: 15kHzDe-emphasis: OFFTX power: Low1)Frequency: 435.000MHz

Send 1750Hz ToneTX power: High1)Frequency: 435.000MHz

ANT: OPENPTT: ON

AG

Linear detector

Am meter

Check

Check

Check

Check

Does nottransmit.

Transmits.

2.0kHz - 4.2kHz

2.5kHz - 4.5kHz

2.4A or less



MIC

ANT

TX-RX(A/3)

ADJUSTMENT

Note: For details of sending DTMF code “D”,refer to the “Single Tone Mode” on page 27.

VR1 : TX frequencyVR5 : MAX DEVVR6 : DCS modulation valanceLV : VCO lock voltage terminal

TH-K4AT/K4E

43

TERMINAL FUNCTION

CN1 1 GND GND2 Vol-OUT RX audio volume output3 Vol-IN RX audio volume input4 EN2 Encoder 25 GND GND6 EN1 Encoder 1

CN2 1 SPK Internal speaker audio2 SPG Audio ground

CN6, 1 PTT PTTCN7 2 KIN4 Key matrix input

3 KYO2 Key matrix output (MONI key)4 KYO1 Key matrix output (LAMP key)5 BL LCD backlight control6 GND GND

CN8, 1 KIN1 Key matrix inputCN9 2 IM Internal microphone

3 KYO3 Key matrix output4 8M 8V power supply5 KIN4 Key matrix input6 MIG Microphone ground7 LAMP Key illumination control8 GND GND9 KYO0 Key matrix output10 KIN2 Key matrix input11 KYO1 Key matrix output12 KIN0 Key matrix input13 KYO2 Key matrix output14 KIN3 Key matrix input

CN No. Pin No. Pin Name Function

TX-RX UNIT (A/3) : TX-RX↔VOL/ENC

TX-RX UNIT (A/3) : TX-RX↔Internal speaker

TX-RX UNIT (A/3) : TX-RX↔TX-RX UNIT (B/3) : 10KEY

TX-RX UNIT (A/3) : TX-RX↔TX-RX UNIT (C/3) : PTT

JIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

C20

C21

C22

R210

C24

R211

C25

R212

C26

R213

C27

R214

R215

C29

1

134 6

13K

YO

2K

YO

1K

YO

0LA

MP

KIN

4K

YO

3K

IN1

KIN

3K

IN0

KIN

2G

ND

MIG

8MIM

142

R216

R218

C30

C33

C34

C35

C37

C38

C40

C41

C42

C43

C44

R231

C45

C46

C200

C50

C51 C

52

C203

R172C204

C54

C55

C56

C57

C211 C212

C213

Q12

R252

C66

Q13

Q14

134 6

R255

Q15

C70

Q20

D

G

G

S

S D

Q21Q22

Q23

Q24

C78

G D

S

S

Q27DS

G

R272

C86

Q34

Q35

Q36

C1 Q51

D7

C271

C272

F1F3

XF1

TH1

TH2

TH3

J2DC IN

D14

D15

D16

R115

R116

R117

R118R119

R120

R122

R123

R124

R125

R126

R127

R128

D31

R323

R324

R131

R132

R133

R134

R135

R137

R139

R330

R332

R140

C105

R141

C106

R142

C107

R143

C108

R144

C109

R145

R146

R147

R148

C110

C111

IC1

C112

IC2

1

45

8

C113

IC3

C114

C115

R151

C116

R152

C117

R153

C118

R154

R157

R158

D60

R159

D61

D62

D63

D64

R351

D65

C318

1 5

2 6G

ND

KY

O1

KIN

4

BL

KY

O2

PT

T

C125

C126

R18

C128

C511

R19

R165

C512

R166

R167

R168

D70

D71

D69

D72

R20

R21

L45

L46

R24

R1

C328

R171

Q4

Q6

D81

C331

L53

R30

R31

R32

R33

L58

R34

R35

C339

R36

R37

R38

R188

R189

L64

L67

C349

VR1

VR

5

MA

X D

EV

VR6

C351

C356

C166

C167

R58

C168

C169

C170

C171

C172

C173

C174

C175

C176

C370

C371

C372

R70

C180

R71

R72

C182

C183

R74

R75

R76

C186

R77

C187

R78

C188

R79

C189

R80

C190

R81

C191

R82C

192

C193

R83R

84

C194

R85

C195

R86

C196

C197

C198

R90

CN6

X1

CN9

CP

1

CP

2

IC17

+

+

+

+

+

LV

BB

TE

MP

GN

D

1

8 9

16

+

1

8 9

16

+

+

DCS BAL

+

+

FREQ

DS

G

DS

G

DS G

1

4 5

8

SET

44

TH-K4AT/K4E PC BOARD

TX-RX UNIT (X57-675X-XX) (A/3) 0-21 : M2 2-71 : E

Component side view (J72-0884-19 A/3)

Ref. No. Address

IC1 4D

IC2 8F

IC3 9B

IC6 6M

IC9 9P

IC10 6P

IC11 6Q

IC15 7P

Ref. No. Address

IC17 9I

Q4 4C

Q6 3E

Q12 5J

Q13 7F

Q14 9E

Q15 5E

Q20 10E

Ref. No. Address

Q21 10D

Q22 10D

Q23 6B

Q24 8D

Q27 6H

Q31 6L

Q34 9F

Q35 10F

Ref. No. Address

Q36 10E

Q37 8L

Q38 7K

Q41 9Q

Q47 7S

Q51 4H

Q53 9Q

Q55 5P

Ref. No. Address

Q56 7L

Q57 8Q

D7 4B

D14 8E

D15 9D

D16 4D

D25 6K

D26 7L

Ref. No. Address

D31 9F

D34 7L

D40 7S

D41 7S

D60 3H

D61 3H

D62 3H

D63 3H

Ref. No. Address

D64 4H

D65 4H

D69 3G

D70 3H

D71 3H

D72 3G

D81 10G

J K L M N O P Q R S

1

2

3

4

5

6

7

8

9

10

11

12

13

14

R217

R223

R226

R227

R234

R236

R237

R238

C203

R172204

R242

R243

R246 R248

212

Q12

R252

R263

D

S

S Q31

C86

R276

Q37

B

E

C

Q38

Q41

C246

C247

C248

C249

Q471 3

45C250

C252

C253

C255

C256

C257

Q53

C258

Q55

COM3

SEG0

SEG1

SEG2

SEG3

SEG4

SEG5

SEG6

SEG7

SEG8

SEG9

SEG10

SEG11

SEG12

SEG13

SEG14

SEG15

SEG16

SEG17

SEG18

SEG19

SEG20

SEG21

SEG22

SEG23

SEG24

SEG25

SEG26

SEG27

SEG28

SEG29

SEG30

SEG3136

COM01

COM1

COM2

Q56

G

G

G

S

S

S

D

D

D

Q57

C279

C280

C290

C291TH1

J3MIC

J4SP

D25

D26

D34

CP

34C

P35

R328

D40

D41

R335

C300

C302

C304

C305

C306

C307

C308

C309

IC6

156 10

C118

IC9

1 346

R157

C310

R158

C311

R159

C312

C313

C317

C318

1 5

2 6G

ND

KY

O1

KIN

4

BL

KY

O2

PT

T

R355

C319

65

C512

R170

R171

L49

–+

C331

R244

L63

C344

C345

C346

C347

C348

C351

C354

C355

C359

C360

C368

R86

CN

2IN

T. SP

CN6

R202

R203

R204

IC101

1

23

4

4

1

34

5

5

8

R205

IC11

123 4

R206

R207

R208

R209

IC15

+

5

8

+

+

+

POWER

+

J72-0884-19 (A/3)

LCD

ANT

45

Component side

Foil side

Layer 1Layer 2Layer 3Layer 4



PC BOARD TH-K4AT/K4E

GMC

Downloaded

JIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

R235

R239 C297

R240R241

C206

C20

R253

R254

R256

Q17

1

23

4

C223

C224

C226

C227

C228

C229

Q29

C230

C231

C82

C83

Q30

C84

C235

1 6E

NC

AG

ND

EN

CB

VO

L INV

OL O

UT

GN

D

C236

C237

C238

C88

C239

C89

R275

R277

C240

C90

C241

C91

C242

C93

C94

C95

C96

R282

C97

R283

C98

C99

R285

R286

R289

Q52

C281

C283

C284

C285

C286

C293 C294

C295

C298

C299

TH

4

CN

10

R1

R103

R104

CN15

CN

17

R107

D10R108

D11

R109

D12

D13

R110

R111

D20

D21

D22

D24

R310

R312

R313

D27

R318

CP

31

D36

CP32 CP33

R325

R326

C100

C101

C102

L16

L17

L18

L19L20L21L22

C303

L23

L25

R342

R343

1

2

3

4IC4

15

IC8

L30

C314

R352

C316

L36R353

R354

L38

R162

C510

L40

L41

D74

D79

R1D80

C330

R179C332 C335 C336

R180

R181

R182

R183

R185

C152

C153

L68

R190

R191

R192

C156

R193

R194

C158

R195

C159

R196

R197

R198

R199

C160

C161

C162

C357

C163

C164

C358

C165

C361

C365

R186

R61

C366

R62

C367

C87

CN1

X3

R200

R201

IC12

1

46

3

+

1120

3031 60

61

90

91

+

J72-0884-19 (A/3)

46



Foil side view (J72-0884-19 A/3)

Ref. No. Address

IC4 10E

IC5 10K

IC8 7E

IC12 6B

IC16 8L

Q1 4P

Q2 3O

Q3 3P

Ref. No. Address

Q5 3N

Q9 4N

Q10 5N

Q11 6M

Q16 4L

Q17 3J

Q29 10J

Q30 8J

Ref. No. Address

Q33 9N

Q52 7G

Q58 6K

D1 4R

D2 3R

D3 3R

D4 3R

D5 2Q

Ref. No. Address

D6 3Q

D8 4M

D9 3M

D10 3G

D11 4G

D12 3F

D13 3G

D18 2L

Ref. No. Address

D19 2L

D20 3I

D21 3H

D22 10J

D24 8I

D27 9J

D30 8N

D32 8M

Ref. No. Address

D33 8N

D35 7N

D36 9D

D73 7N

D74 3F

D79 11I

D80 11I

J K L M N O P Q R S

1

2

3

4

5

6

7

8

9

10

11

12

13

14

C201

C202

C205

C206

C207

C208

C209

C210

C61

Q10

1

2 3

4

C64

Q11

GSD

C65

C67

C68

C219

Q16

1

23

4

Q17

1

23

4

C220

C221

C71

C222

C72

C223

C73

C224

C225

C75

C226

C76

C77

C227

C228

229

Q29

C231

C83

Q30

C84

R271

Q33

E

B

C

R273

C90

C2

C3

C4

C5

C6

C7

C8C

9

D1

D2

D3

D4

Q58

DS

G

D5

D6

D8

D9

C270

C276

C282

CN

10

R100R101

R103

R104

R107

R109

D18

D19

D27

L1

L2

L3

L4

L5

L6

D30

L8

L9

D32

D33

D35

R130

L10

L11

CD

1

L13

L14

L15

L24

L25L26

L27

R344

L28

L29

IC5

1 345

R346

R347

R348

R155 R156

CF1

L32

R10

L34

R11

L35

R12

L36

C124

R14

R160

R15

R161

R16

R162

R17

R163

R164

C129

C323

D73

C130

C324

C131

C132

C326

C133

C327

C134

Q1

G

S D

C135

C329

Q2C136

Q3

DSG

C137

R173

R174

C139

Q5

R175

R176

R177

L50

R178

Q9

R179

L54

C140

C141

L56

C142

C144

R180

C338

C145

R181

R182

C146

C147

R183

R4

C148

R39

R5

R6

R7

R8

R9

L65

R41

R42

C152

C153

R45

R46

C157

R47

R49

C352

C353

R50

R51

BR

52

R53

C164

C358

R54

R55R56

R59

C363

C364

R60

R62

R64

C369

C177

C178

C179

R88

R91

R92R93

R94

R95

R96

R97

R98

R99

C10

C11

C13

C14

C15

C17C18

C19

IC16

1

45

8

+

LV

47

Component side

Foil side





J K L M N O P Q R SIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

1

2

3

4

5

6

7

8

9

10

11

12

13

14

C20

C21

C22

R210

C24

R211

C25

R212

C26

R213

C27

R214

R215

C29

1

134 6

13K

YO

2K

YO

1K

YO

0LA

MP

KIN

4K

YO

3K

IN1

KIN

3K

IN0

KIN

2G

ND

MIG

8MIM

142

R216

R217

R218

C30

C33

C34

C35

R223

C37

C38

R226

R227

C40

C41

C42

C43

C44

R231

C45

C46

R234

R236

R237

R238

C200

C50

C51 C

52

C203

R172C204

C54

C55

C56

R242

C57

R243

R246 R248

C211 C212

C213

Q12

R252

C66

Q13

Q14

134 6

R255

Q15

C70

Q20

D

G

G

S

S D

Q21Q22

Q23

R263

Q24

C78

G D

S

S

Q27DS

G

Q31

R272

C86

Q34

Q35

Q36

R276

Q37

B

E

C

Q38

Q41

C246

C247

C248

C1

C249

Q471 3

45C250

C252

C253

Q51

C255

C256

C257

Q53

C258

Q55

COM3

SEG0

SEG1

SEG2

SEG3

SEG4

SEG5

SEG6

SEG7

SEG8

SEG9

SEG10

SEG11

SEG12

SEG13

SEG14

SEG15

SEG16

SEG17

SEG18

SEG19

SEG20

SEG21

SEG22

SEG23

SEG24

SEG25

SEG26

SEG27

SEG28

SEG29

SEG30

SEG3136

COM01

COM1

COM2

Q56

G

G

G

S

S

S

D

D

D

Q57

D7

C271

C272

F1

C279

F3

C280

C290

C291

XF1

TH1

TH2

TH3

J2DC IN

J3MIC

J4SP

D14

D15

D16

R115

R116

R117

R118R119

D25

D26

R120

R122

R123

R124

R125

R126

R127

R128

D31

D34

R323

R324

CP

34

R131

CP

35

R132

R133

R134

R328

R135

R137

D40

R139

D41

R330

R332

R140

R335

C105

R141

C106

R142

C107

R143

C108

R144

C109

R145

R146

R147

C300

R148

C302

C304

C110

C305

C111

IC1C

306

C112

IC2

1

45

8

C307

C113

IC3

C308

C114

C309

C115

R151

C116

IC6

156 10

R152

C117

R153

C118

R154

IC9

1 346

R157

C310

R158

D60

C311

R159

D61

C312

D62

C313

D63

D64

R351

D65

C317

C318

1 5

2 6G

ND

KY

O1

KIN

4

BL

KY

O2

PT

T

R355

C319

C125

C126

R18

C128

C511

R19

R165

C512

R166

R167

R168

D70

D71

D69

D72

R20

R21

L45

L46

R24

R170

C328

R171

L49

–+

Q4

Q6

D81

C331

R244

L53

R30

R31

R32

R33

L58

R34

R35

C339

R36

R37

R38

R188

R189

L63

C344

L64

C345

C346

L67

C347

C348

C349

VR1

VR

5

MA

X D

EV

VR6

C351

C354

C355

C356

C359

C166

C167

R58

C168

C169

C360

C170

C171

C172

C173

C368

C174

C175

C176

C370

C371

C372

R70

C180

R71

R72

C182

C183

R74

R75

R76

C186

R77

C187

R78

C188

R79

C189

R80

C190

R81

C191

R82

C192

C193

R83R

84

C194

R85

C195

R86

C196

C197

C198

CN

2IN

T. SP

R90

CN6

X1

CN9

CP

1

CP

2

R202

R203

R204

IC101

1

23

4

4

1

34

5

5

8

R205

IC11

123 4

R206

R207

R208

R209

IC15

IC17

+

+

+

+

+

LV

BB

TE

MP

GN

D

1

8 9

16

+

1

8 9

16

+

+

DCS BAL

+

+

FREQ

DS

G

DS

G

DS G

1

4 5

8

SET

+

+

+

POWER

+

J72-0884-19 (A/3)

LCD

ANT

44 45


Component side

Foil side







Ref. No. Address

IC1 4D

IC2 8F

IC3 9B

IC6 6M

IC9 9P

IC10 6P

IC11 6Q

IC15 7P

Ref. No. Address

IC17 9I

Q4 4C

Q6 3E

Q12 5J

Q13 7F

Q14 9E

Q15 5E

Q20 10E

Ref. No. Address

Q21 10D

Q22 10D

Q23 6B

Q24 8D

Q27 6H

Q31 6L

Q34 9F

Q35 10F

Ref. No. Address

Q36 10E

Q37 8L

Q38 7K

Q41 9Q

Q47 7S

Q51 4H

Q53 9Q

Q55 5P

Ref. No. Address

Q56 7L

Q57 8Q

D7 4B

D14 8E

D15 9D

D16 4D

D25 6K

D26 7L

Ref. No. Address

D31 9F

D34 7L

D40 7S

D41 7S

D60 3H

D61 3H

D62 3H

D63 3H

Ref. No. Address

D64 4H

D65 4H

D69 3G

D70 3H

D71 3H

D72 3G

D81 10G

J K L M N O P Q R SIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

1

2

3

4

5

6

7

8

9

10

11

12

13

14

R235

R239 C297

C201

C202

R240

C205

R241

C206

C207

C208

C209

C210

C61

Q10

1

2 3

4

C64

Q11

GSD

C65

R253

C67

R254

C68

C219

Q16

1

23

4

R256

Q17

1

23

4

C220

C221

C71

C222

C72

C223

C73

C224

C225

C75

C226

C76

C77

C227

C228

C229

Q29

C230

C231

C82

C83

Q30

C84

C235

1 6E

NC

AG

ND

EN

CB

VO

L INV

OL O

UT

GN

D

R271

C236

Q33

E

B

CC237

R273

C238

C88

C239

C89

R275

R277

C240

C90

C241

C91

C242

C93

C94

C95

C96

R282

C97

R283

C98

C99

R285

C2

R286

C3

C4

C5

R289

C6

C7

C8C

9

Q52

D1

D2

D3

D4

Q58

DS

G

D5

D6

D8

D9

C270

C276

C281

C282

C283

C284

C285

C286

C293 C294

C295

C298

C299

TH

4

CN

10

R100R101

R103

R104

CN15

CN

17

R107

D10R108

D11

R109

D12

D13

R110

D18

R111

D19

D20

D21

D22

D24

R310

R312

R313

D27

L1

L2

L3

L4

R318

L5

L6

D30

L8

L9

D32

D33

D35

CP

31

D36

CP32 CP33

R130

R325

R326

L10

L11

CD

1

L13

C100

L14

C101

L15

C102

L16

L17

L18

L19L20L21L22

C303

L23

L24

L25

R342

L26

R343

L27

R344

1

2

3

4IC4

L28

L29

IC5

1 345

R346

R347

R348

IC8

R155 R156

L30

CF1

L32

C314

R10

L34

R11

L35R352

C316

R12

L36R353

R354

C124

R14

L38

R160

R15

R161

R16

R162

R17

R163

C510

R164

C129

L40

L41

C323

D73

D74

C130

C324

C131

C132

C326

C133

C327

C134

D79

Q1

G

S D

C135

C329

Q2C136

Q3

DSG

C137

R173

R174

C139

Q5

R175

R176

R177

D80

C330

L50

R178

Q9

R179C332

L54

C140

C141

C335L56

C336

C142

C144

R180

C338

C145

R181

R182

C146

C147

R183

R4

C148

R39

R5

R185

R6

R7

R8

R9

L65

R41

R42

C152

C153

L68

R190

R45

R191

R46

R192

C156

C157

R47

R193

R194

C158

R49

R195

C159

R196

R197

R198

R199

C352

C353

R50

C160

R51

B

C161

R52

C162

C357

R53

C163

C164

C358

R54

R55

C165

R56

R59

C361

C363

C364

R60

C365

R186

R61

C366

R62

C367

R64

C369

C177

C178

C179

C87

R88

CN1

R91

R92R93

R94

R95

R96

R97

X3

R98

R99

C10

C11

C13

R200

C14

R201

C15

C17C18

C19

IC12

1

46

3

IC16

1

45

8

+

1120

3031 60

61

90

91

+

+

LV

J72-0884-19 (A/3)

46 47


Component side

Foil side







Ref. No. Address

IC4 10E

IC5 10K

IC8 7E

IC12 6B

IC16 8L

Q1 4P

Q2 3O

Q3 3P

Ref. No. Address

Q5 3N

Q9 4N

Q10 5N

Q11 6M

Q16 4L

Q17 3J

Q29 10J

Q30 8J

Ref. No. Address

Q33 9N

Q52 7G

Q58 6K

D1 4R

D2 3R

D3 3R

D4 3R

D5 2Q

Ref. No. Address

D6 3Q

D8 4M

D9 3M

D10 3G

D11 4G

D12 3F

D13 3G

D18 2L

Ref. No. Address

D19 2L

D20 3I

D21 3H

D22 10J

D24 8I

D27 9J

D30 8N

D32 8M

Ref. No. Address

D33 8N

D35 7N

D36 9D

D73 7N

D74 3F

D79 11I

D80 11I

GMC

Downloaded

JIHGFEDCBA

1

2

3

4

5

6

7

8

9

10

11

12

13

14

*

MIC1

+ –

D42

D43

D44

D46

D47

S7PTT

MENU

1/F 2/VFO 3/MR F/CALL

VFO654

7 8 9 MR

CALL#0

LAMPMONI

J72-0884-19 (B/3)

J72-0884-19 (C/3)

48


Component side

Foil side


TX-RX UNIT (X57-675X-XX) (B,C/3) 0-21 : M2 2-71 : E

Component side view (J72-0884-19 B,C/3)

Ref. No. Address

D42 4D

D43 5D

D44 8D

D46 5G

D47 8G

A B C D E F G H I J

1

2

3

4

5

6

7

8

9

10

11

12

13

14

J72-0884-19 (B/3)

J72-0884-19 (C/3)

R230

C243

+–

Q50

DG

12

14 13

S

D48

D49

R336

R337

C374

CN7

1P

TT

KY

O2

BL

5

2K

IN4

KY

O1

GN

D6

CN8

KIN3KIN0KIN2GNDMIG8MIM

KYO2KYO1KYO0LAMPKIN4

KYO3KIN1

49


TX-RX UNIT (X57-675X-XX) (B,C/3) 0-21 : M2 2-71 : E

Foil side view (J72-0884-19 B,C/3)

Component side

Foil side


Ref. No. Address

Q50 3I

D48 11C

D49 11B

50

TH-K4AT/K4E SCHEMATIC DIAGRAM

A B C D E

1

2

3

4

5

6

7

X57-675 1/5

-t

-t

-t

5MS

2SC4919Q29

R194

10k

C258

0.1u

C290

470p

C246

100u10

R14

0

10k

IC16NJM2904V

1

2

3

4GND

5

6

7

8V+

R155

100k

C36

747

0p

R206

15

D80DA221

D40

B30

-215

6-05

R183

33k

R27

3

1k

R17

4

560k

R200

10k

C20

7

0.02

2u

2SK1830Q35

C352

470p

R15

1

1.2k

C202

270p

C25

7

1000

p

R191

47k

D25

MA2S111

R21

210

k

R21

5

470k

C25

5

10u1

0

D30RB521S-30

R182

1k

R17

9

220k

D79DA221

R27

24.

7k

R161

1.8k

C228

0.1u

R201

4.7k

R20

4

180k

R21

8

0

C22

60.

1u

R164

47k

F3

0.5A

C28

61u

J4

SP

D26

1SS

388

R19

8

10k

C25

6

1000

p

C22

3

470p

R153

1k

D36

RB521S-30

C24

2

0.01

u

D27RB706F-40

R21

6

10k

R207

1k

C23

9

470p

C208

82p

R17

7

10k

C36

6

470p

2SJ347Q36

C205

0.047u

C22

4

0.1u

R17

3

15k

R147

10k

C24

9

470p

D35

RB521S-30

R210 12

R15

22.

2k

J2

R35

50

R332 15

R197

100

D24MA742

C281 470p

C36

5

470p

IC6 TA7368F

1

2

3

4

56NF

7PHASE

8PRE-GND

9PW-GND

10POUT

L50R203

470k

IC5NJM2107F

1

2

3 4

5V+

2SK1830Q31

C24

1

470p

J3

MIC

Q47

RN

1701

D32RB051L-40

C229

0.1u

CN1

1

2

3

4

5

6

C220

4700p

C27

6

470p

C19

7

0.02

7u

R18

147

0

R144

0

R163

470k

C284470p

C24

7

0.1u

CN21

2

D221SS361

C24

8

0.1u

R22

6

220

R156

100k

C23

1

470p

D81RB521S-30

C219

0.047u

2SK1830Q27

R195

100

TH

3

100k

R20

2

47k

C210 0.01u

2SC4617(R)Q38

C225

1u

D31DA221

TH

4

100k

F1

2.5AD33

RB051L-40

R145

4.7k

C22

7

2.2u

4

C358

0.047u

R20

5

100

R141

1k

IC4

XC

6202

PB

52F

R

124

GN

D

3

C221

0.01u

R330

470

C27

9

470p

C338

1u

2SC4617(R)Q30

C24

0

470p

C285

470p

R22

7

100

R19

3

1.8k

C270470p

R33

5

1k

CPH3417Q56

R14

8

5.6k

R178

0

L49

R16

2

270k

2SK1830Q34

C195

10u10

C291

470p

R18

5

270k

C193

4.7u6.3

D41

B30

-215

7-05

R16

0

4.7k

C282 470p

C28

0

470p

C201

1200p

C22

2

0.01

u

C23

8

470p

R20

810

R18

0

39k

C236

0.01u

R21

3

22k

C235

0.01u

C25

0

1u

D34

MA

ZS

0270

H

C252

100p

C511

470p

C206

0.018u

C23

0

1u

C353 470p

R199

1k

VR550k

R17

6

820k

R211

470k

R13

7

4.7k

R209

100k

C23

7

10u1

0

R21

7

820

R190

47k

C27

1

470p

C198

1u

2SB1184(Q,R)Q37

C27

2

470p

2SB1184(Q,R)Q33

C19

6

0.02

7u

R196

10k

C253

10u10

C209 470p

R192

470

R175

2.2k

C28

347

0p

R21

4

10k

C36

847

0p

L68

C20

0

0.01

u

R154

4.7k

R143

27k VR650k

TH

2

100k

R13

9

4.7k

R146

4.7k

R142

1k

R165

820k

C349

0.1u

R158

330k

IC17NJM2904V

1 2 3 4G

ND

5678V

+

C33

9

0.04

7u

C20

4

0.03

3u

R324

47k

C331

470p

C21

1

2200

p

C20

3

120p

R168

180kC212

0.012u

R15

9

120k

R16

6

820k

R167

180k

C35

1

0.01

u

C21

3

4.7u

6.3

R17

1

39k

(D)

R170

56k(D)

R15

7

330k

C510

0.047u

R223

100k

R234

18k

R35

4

33k

NI-MHTEMPERATUREDETECTION

Q37

TX/BUSYLED SW

VOLOUT

D81

Q36

Q33 OPERATION SW

AVRCONSTANT-VOLTAGE

SP

5C/5R/5T AVR

T0

+B

SPG

DCS BAL

SP MUTE SW

REM

DC IN

CHARGE SW

Q31Q56 OPERATION SW

WIDE/NARROWCHANGEOVER SW

TX-RX UNIT (X57-675X-XX)(A/3)

SPK

SPG

DC INDETECTION

REVERSE CURRENTPREVENTION

BTEMP

PTTE

TXD

RE

M

RXD

5MS

W/N

8 OHM

MICM

CHARGE

MIC ALCRECTIFICATION

MIC MUTECONTROL


D79,80

LIMITER

SP MUTESPEED UP

VOX DETECTIONRECTIFICATION

11.5V AVR

5C/5R/5T AVR

5MS

8V

BATTERYTERMINAL

AF AMP/LAMP AVR

DTMF/BEEP/1750

VOXDETECTION AMP


5MV

MICMUTESW

MIG

VO

LOU

T

IM

CTCSS/DCS FILTER

MIC AMP

PTTMIC

MIG

DT

MF

/175

0

SPM

MAX DEV

TXD

IM

CONSTANT-CURRENTCIRCUIT

IM

REM/TXD

AF AMP

PTTESPK

HPF

AFO

RXD

5M

QT/DQT

5T

MOD

ENCB

5MS

TO

VOLIN

NAR

ENCA

5MS

MO

D

NA

R

VO

LIN

EN

CB

EN

CA

BUSY LEDTX LED

ROTARYENCODER

&VOL KNOB

GND

ENCA

GND

ENCB

VOLIN

VOLOUT

1

VCC

VIN

RIPPLE

D26

C246 DISCHARGE

VO

UT

VS

S

VIN

D33,35,36

REVERSECURRENTPREVENTION

Q38

Q37 OPERATION SW

DCDETBTDET

8V

BTEMPCHARGE

AFAMP5M

+B

IM

MICM

TXDSPM

RXD

MIG

PTTE

REM

TONE

VOXIN

DTMF/BEEP

RXLED

5C

+B

5MS

ENCB

NARTO

SIGIN

MOD

5T

5RQT/DQT

ENCA

VOLIN

5MV

R17

2

10k

R18

6

68k

T:4.95VR:0V

T:3.29VR:110mV

T:73mVR:3.39V

T:4.95VR:0V

3.23V

7.14V

4.93V

13.57V 7.12V

11.43V

13.8V

13.40V

4.42V

T:0VR:4.90V

2.02V

TH-K4AT/K4ESCHEMATIC DIAGRAM

F G H I J

X57-675 2/5


SEG31

SE

G5

R313

3.3k

R31

2

4.7k

COM3

R27

5

47k

CP

331k

R235

1k

CO

M2

SE

G3

SE

G26

SE

G4

R32

3

4.7k

CP

321k

R318

1k

CO

M3

R342 0

SEG5

R25

61k

SE

G6

SE

G23

SEG18

CP

341k

CP313.9k

C29

5

5p

R343 0S

EG

17

SEG17

SE

G1

R285

0

SE

G21

IC8

90522BPFFG139

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

313233343536373839404142434445464748495051525354555657585960

61COM2

62COM3

63VSS

64SEG16

65SEG17

66SEG18

67SEG19

68SEG20

69SEG21

70SEG22

71SEG23

72SEG24

73NC

74NC

75SEG25

76SEG26

77SEG27

78SEG28

79SEG29

80SEG30

81SEG31

82V0

83V1

84V2

85V3

86HST(VCC)

87MD2

88MD1

89MD0

90RESET

91V

SS

92X

0

93X

1

94V

CC

95P

WR

SW

96IN

TU

P

97IN

TD

W

98D

CD

ET

99R

XLE

D

100

BS

FT

101

PLL

EN

102

PLL

LD

103

KIN

0

104

KIN

1

105

KIN

2

106

KIN

3

107

KIN

4

108

TY

PE

109

VU

KE

Y

110

MIC

M

111

NO

AA

112

5R

113

SH

IFT

114

5T

115

KO

UT

0

116

KO

UT

1

117

KO

UT

2

118

KO

UT

3

119

VS

S

120

BT

DE

T

SE

G2

SEG1

R310

3.9k

R28

6

0

SE

G24

C29

4

5p

SEG19

SEG6

SE

G19

R32

6

0

SE

G16

SEG11

SE

G18

SEG30

SE

G22

C3600.1u

Q52RN1107

CP

351k

SE

G12

SE

G0

SEG8

R25

41k

R283

0

SE

G15

SEG22

SE

G11

SEG0

R32

547

k

SEG21

SEG7

SE

G29

C3350.1u

R25

31k

SEG20

SE

G27

SEG25

COM0

SEG3

SE

G9

C359

0.1u

SEG13

SE

G28

SEG24

SEG12

SE

G30

SEG2

X3

7.98

2MH

z

R282

0

CO

M0

SE

G14

SEG23

SE

G13

C293

47p

SEG14

SEG29

C3320.1u

SE

G8

R27

6

47k

SEG28

R27

7

47k

COM2

COM1

SEG27

SEG9

SE

G10

LCD (B38-0881-05)

1C

OM

0

2C

OM

1

3C

OM

2

4C

OM

3

5S

EG

0

6S

EG

1

7S

EG

2

8S

EG

3

9S

EG

4

10S

EG

5

11S

EG

6

12S

EG

7

13S

EG

8

14S

EG

9

15S

EG

10

16S

EG

11

17S

EG

12

18S

EG

13

19S

EG

14

20S

EG

15

21S

EG

16

22S

EG

17

23S

EG

18

24S

EG

19

25S

EG

20

26S

EG

21

27S

EG

22

28S

EG

23

29S

EG

24

30S

EG

25

31S

EG

26

32S

EG

27

33S

EG

28

34S

EG

29

35S

EG

30

36S

EG

31

SE

G7

SEG26

C336

0.1u

SE

G25

SEG16

SEG15

SE

G31

SE

G20

SEG4

CO

M1

SEG10

BEAT SHIFT SW

5C/5R/5T AVR5C/5R/5T AVR

ENCBENCA

SQV

MPU

SMV

PTTE

SPM

RXD

TXD

TEMP

8V

BTDETDCDET

5M

CHARGE

+BBTEMP

AFAMP

TXD

IM

RXD

MIG

SPM

PTTE

MICMRXD

IM

SPM

PTTE

MIGTXD

REM

TONE

VOXIN

DTMF/BEEP

RXLED

SIGIN

VOLIN

NAR

ENCA

MOD

ENCB

5C

TO

5MS

5RQT/DQT

5T

5MV

+B

SE

G14

SE

G15

VS

S

C0R

1

EN

CA

EN

CB

5MS

DV

CC

DV

SS

DT

MF

/BE

EP

TON

E

AV

CC

AV

RH

AV

RL

AV

SS

RE

M

SIG

INSQ

SM

VO

XIN

TH

ER

M

BAT

T

BT

EM

P

VC

C

CH

AR

GE

LAM

P

AFA

MP

NA

R

CO

M0

CO

M1

CLOCK

DATA

EEPDI

EEPCS

VOX

BPF/APC

KAPC

VCC

AFM

SPM

RXD

TXD

PTTE

PTTI

5C(SAVE)

FINAL

SEG0

SEG1

SEG2

SEG3

SEG4

SEG5

SEG6

SEG7

SEG8

SEG9

SEG10

SEG11

SEG12

SEG13

KA

PC

AF

M

SH

IFT

FIN

AL

CLO

CK

DAT

A

PLL

EN

PLL

LD

5MS

5MV

CLOCK

5T

NAR

VOLIN

+B

SQVSMV

PLLLD

KAPCAFM

PLLEN

SHIFT

TO

MOD

5R5C

DATA

QT/DQT

FINALTEMP

5M

BATT

LAMP5MS SW

5M

+B

8V

IMMIG

5M

PTTI

5C SW

5R SW5T SW

VOX

EEPCS

EEPDI

BPF/APC

INT0

PWR SWRESET

KIN4

KOUT2

KIN0

KOUT1

TYPE

KIN1

VUKEYKOUT0

KOUT3

KIN3KIN2

4.95V

ON:4.91V


R25

2

100k

Q51RN4902

C30

8

470p

R238 1k

C34

6

470p

IC10S-80844CNNBB85

1O

UT

2V

DD

4V

SS

3N

C

C31

0

1u

C30

2

470p

CN71

2

3

4

5

6

Q53

RN

2701

C311

0.1u

D43

B30

-220

5-05

D46

B30

-220

5-05

MIC1

C30

547

0p

C31

3

0.03

9u

CN61

2

3

4

5

6

R26

3

10k

C34

447

0p

C30

91u

C34

5

470p

D72

MA

2S11

1

R242

330k

R236 1k

IC11S-80930CNNBG80

1VSS

2VDD

4OUT

3CD

CN81234567891011121314

C30

7

0.1u

L63

S7S70-0485-05

C31

7

470p

C30

047

0p

D42

B30

-220

5-05

IC9

TK

1125

0CM

1 2 34

VO

UT

5G

ND

2

6V

IN

IC15AT25160N10SI27

1

2

3

4 5

6

7

8

CN91234567891011121314

D64

MA

2S11

1

D48

B30-2237-05

C24

3

470p

C35

5

0.01

u

C316

0.1u

R23

0*

C30

3

150u

6.3

D71

MA

2S11

1

C31

9

10u1

0

R246

3.9k

C33

0

470p

CPH3317Q55

C35

4

470p

R33

6

220

C31

8

470p

R32

8

470k

R23

1

150

D65

MA

2S11

1

R25

5

0

IC12

TK

1125

0CU

CB

1N

P

2G

ND

3C

ON

T4

VIN

6V

OU

T

R33

7

470

D60

*

C31

2

0.03

9u

D70

MA

2S11

1

R243

330k

D63

*

C30

447

0p

R237 100k

C347

470p

Q57RN2105

D69

MA

2S11

1

C31

4

470p

R248

3.9k

Q41RN2105

C348

470p

D62

*

D47

*

2SK1830Q50

D49

B30-2237-05

C30

647

p

D44

*

C37

1

470p

C37

2

470p

C37

0

470p

D61

MA

2S11

1 C374*

R241

330k

R24

010

0k

C29

91u

C29

847

0p

KIN

3

GND

BL

KYO1

KYO2

KIN4

PTT

RESETINT0

KEY LED SW

SET

LCD LED SW

5T SW5C SW

5MS SW

EEPROM

5.0V AVR

TX-RX UNIT(X57-675X-XX)(C/3)MARKET CODE

DETECTION

D62-65

D69-72

PTT BOARDREVERSECURRENTPREVENTION

BIT

0

KEYILLUMINATIONLED

D42-44,46,47

BIT

3

BIT

1

BIT

2

TYPE

KE

Y

LAMP

PTT

JUM

PE

R

MONI

MENU

4

CALL#0

TX-RX UNIT(X57-675X-XX)(B/3)8M

VFO

KIN

4

5

MIG

F/CALL

LAM

P

10KEY BOARD

GN

D

KY

O0

1/F

KIN

2

KY

O1

6

KIN

0

KY

O2

*

2/VFO

PO

WE

R S

W

KIN

1

IMKY

O3

5R/5MVSW

3.3V VOLTAGE DETECTION

3/MR


5.0V AVR

V/U

5R5MV

5T

+B

5MS

LAM

P

BPF/APC

R239

QT/DQT

5MV

+B

SQVSMV

DATAKAPC

PLLLD

AFM

PLLEN

SHIFT

NAR

5T5MS

TO

MOD

5R5C

VOLIN

CLOCK

TEMPFINAL

5M

SI

SCK

HOLD

VCCCS

SO

WP

GND

5M

+B

5C/5R/5T AVR

IMMIG

8V

RESET

5R SW5T SW

PWR SW

INT0

VUKEY

KIN3

KOUT0

TYPE

KIN2

KOUT3

KOUT1

KIN1KIN0

KIN4

KOUT2

VOX

BPF/APC

EEPDI

EEPCS

5C SW

PTTI

5M

BATT

5MS SWLAMP

5C5MS

DAT

A

CLO

CK

D61

UHF TYPE DETECTION

KEY TYPE DETECTION

D60

D48,49

LCDILLUMINATIONLED

5T

NAR

VOLIN

+B

SHIFTPLLLD

5C

PLLEN

AFMKAPCDATA

QT/DQT

5MS

5R

TO

MOD

CLOCK

SMVSQV

FINALTEMP

8 9 MR7

1k

C29

70.

1u

R244

0

CO

NT

GN

D1

NP

ON:4.92V

4.80V

4.79V

4.98V

4.83V4.95V

ON:6.98V

T:0VR:4.90V

5.03V

T:4.95VR:0V

T:4.99VR:0V

K L M N O

X57-675 3/5


GMC

Downloaded

TH-K4AT/K4ESCHEMATIC DIAGRAM

R12

6

27k

C26

470p

CP23.9k

C17

470p

D5

HSC277

L58

820n

C54

470p

C24

470p

C52

10p

C167

0.1u

2SC4617(R)Q4

C191

0.01u

C187

2p

R12

7

47

L64

4.7u

R11

55.

6k

2SC5488Q6

C19

8p

2SC5488Q2

D16

MA2S111

C170

0.068u

R117

2.7k(D)

Q22RN2105

C180

120p

C18

6

24p

C1

0.01

u

C11

470p

R20 1k

C16

8

0.1u

C46

100p

CP

12.

7k

R15

5.6k

R5

100k

R1243.3k

C41

4.7u

6.3

C27

10u1

0

L46

560n

CF1L72-0968-05

L922

n

C4

470p

R9

150

R13

5

470k

C45

100p

R116

120k

R346

100

R37 27k

R18

33

R7

47k

C190

0.01u

C20

5p

R36 10

C22

4p

C174

180p

R6

1k

C10

0.01

u

R119

1.8k

C17

5

22p

C56

470p

C12

4

0.1u

C17

6

0.1u

C42

470p

R12

5

560

C13

0.5p(B)

C40 0.1u

R11 150k

C173

180p

2SC4617(R)Q21

X1

12.8MHz

L77-1931-05

VC

GND OUTPUT

VCC

R132

2.2k

R122

2.7k

LV

2SK1830Q3

2SC5488Q5

2SC5488Q24

R128

3.3k

R38

27k

R13

0

100

C37470p

C18

2

0.1u

R18

847

R11

827

k

L53

12n

R17

3.3k

C51

22p

C17

2

1800

p

C18

3

0.1u

C169

0.068u

R32

1k

R120

2.7k

R13

3

1k

C21

470p

C6

470p

D7

MA

2S11

1

C7

0.5p (B

)

R12

47

C166

0.01u

IC1LMX2316TMX

12345678G

ND

3

CE

CLK

DAT

A

LE FO

/LD

VC

C2

VP

C43

0.01

u

C50 22p

IC3TA31136FN

123456789

AF

OU

T

10Q

UA

D

11IF

OU

T

12R

SS

I

13N

-DE

T

14N

-RE

C

15G

ND

16M

IXIN

R8

100k R10 47

C18

947

0p

C17

1

470p

R134390k

R4

1k

R131 330k

C57

10p

2SK1830Q20

R16

270

L67

C30

470p

R21

4.7k

R35 120k

R14

3.3k

C15

12p

R18

9

0

R19

120k

C38

0.01u

C18

824

p

C5

0.1u

R123

1.8k

KTC4082Q23

CD1450kHz

VR1

100k

C44

100p

C19

4

0.1u

C25

470p

C18

470p

C14

470p

L818

n

C55

0.01

u

L45

560n

C19

2

0.01

u

C29

22u6

.3

L5

270n

2SK508NV(52K)Q1

L627

0n

C8 5p (B)

C3

2p(B

)

L3

22n

C2

39p (G)

L2

270n

CN15 CN17

L4

6.8n

D3

HV

C37

6BD

4

HV

C37

6B

D1

HVC376BD2

HVC376B

L1

270nC

34

2.2u

6.3 C

33

0.22

u35

R31

2.2k

C35

0.1u

35

R24

1.2k

R30

1k

C9

5p(B

)

C17

7

10u1

0

C17

8

0.01

u

C17

9

0.1u

D6

1SV

278

IF AMP

SQ FILTER

D1-4

RF AMP

5R

VCO FREQUENCY CONTROL

SM

V

RF AMP

FREQUENCY SHIFT

SQ

V

RIPPLE FILTER

VCO SHIFTCONTROL SW

RF AMP

AF MUTE SW

VCO

SHIFT

VO

LIN

+B5T

2nd L.O.

PLLENDATACLOCKPLLLD

450kHz

AF FILTER

FM IC

PLL ICFREQ

SPEED UP

TRIPLER

D6

VCO MODULATION

5R

5R5R

KAPC

BPF/APC

BPF/APC

BPF/APC

PLLLDPLLEN

SHIFT

+B

5C

NAR

VOLIN

5T

QT/DQT

5MS

5R

TO

MOD

CLOCKDATAKAPCAFM

SQVSMV

TEMPFINAL

DAT

A

5R

CLO

CK

TO

PLL

LD5C

SH

IFT

AF

M

5MS

PLL

EN

MO

D

NA

R

QT

/DQ

T

SM

VS

QV

VO

LIN

VO

LIN

PLL

LDC

LOC

K

5R

PLL

EN

AF

M

5CSQ

VS

MV

QT

/DQ

T

NA

R

DAT

A

BP

F/A

PC

SQ

VS

MV

NA

R

AF

M5R

BP

F/A

PC

OS

CIN

OS

CO

UT

MIX

OU

T

VC

C

IFIN

DE

C

FIL

OU

T

FIL

IN

FLO

CP

O

GN

D1

GN

D2

FIN

FIN

VC

C1

OS

CI

D16

PLL LOCK DETECTION

KAPC

TEMPFINAL

FINALTEMP

9 10 11 12 13 14 15 16


1.51V 4.81V

T:0VR:4.62V

4.63V

3.76V

4.63V

0.72V

0.51V

4.77V

W:115mVN:4.94V

4.81V


X57-675 4/5

P Q R S T


YXWVU

1

2

3

4

5

6

7

-t

5R

D13

HV

C13

1

R47

5.6k

L65

27n

2SK2596Q11

C78

470p

C96 1p

(B)

CN10

L17

2.5n L21

4T

R41

270

D73

MA

2S11

1

2SK3476Q12

D12

HV

C13

1

C82

470p

C364

18p

L54

4.7n

C363

10p

C61

470p

R56

10k

L18

220n

C36

9

470p

C83

0.01

u

R64

0

C36

1

470p

R46

10k

R39

270

L19 4T

C93

3p

(B)

2SK1830Q58

C32

4

470p

C97

4p

(B)

C100 2p

(B)

C95

2p

(B)

2SC4617(R)Q15

R271

12

R33

22

D8

HSC277

L14

4.7n

L20

4T

R54 47

C75

470p

C94470p

L30

C66

0.1u

R55

4.7k

C32

81u

C67

470p

R49 1k

R62 270

C64

470p

C72

0.1u

C71

470p

R53

1k

R60

56k

C329

12p

C91

470p

C99

5p

(B)

C32

3

470p

L10

18n

R45

3.3k

L22

4T 4T

R42

0

R347

150

R58

47

C88 20

p

(G)

D10

HVC131

C70 1u

C86

56p

L23

1u

L11

15n

L16

L13

L56

6.8n

R289

0

R51

470

C10

23p

(B)

R50 33

D9

HSC277

L15

4.7n

C77

47p

C89

33p

R61 270C35

7

1u

D11

HVC131

C84

0.1u

C32

7

0.1u

2SC5488Q9

C87

18p

C73

470p

R34

4

47

R52

1k

C10

14p

(B)

C90

470p

C76 8p

C98 2p

(B)

C65 10p C326

470p

D74

HS

M88

AS

C68

10p

2SC4926YDQ10

R59

12k

R34

3.3k

R34

8

68

R85 560

R77

150k (D

)

Q14RN4902

R78

150k

(D)

C11

3

470p

R86

5.6k

TH

1

10k

C11

8

470pC112 470p

R74 100k

(D)

D14

RB

521S

-30

R71

0.39

R70

0.39

R83

56k

C10

9

470p

2SK1830Q13

C10

5

470p

C108

100p

R82 27

k

C10

6

470p

C11

5

470p

C11

147

0p

C11

7

470p

R76 150k

(D)C51

2*

R75

100k (D)

R80

10k

IC2 NJM2904V

1AOUT

2A-IN

3A+IN

4GND

5

6

7

8

R84

100k

R81 390k

C10

7

470p

R72

0.39

C11

6

10u4

C11

4

470p

R79

150k (D)

D15

MA

8039

C356 0.01u

C110 470p

L25

C13

2

0.01

u

C16

447

0p

C162

470p

3SK318Q16C128

0.01u

R10

710

0k

L36

56n

R88

330

D20

1SV

305

R10

3

1.8k L4

0

4.7n

R97

150k

C13

1

0.01

u

L26

470n

R91 1k

R352

0

R11

11.

0M

C146

4p (B)

C140

4p (B)

C13

3

0.01

u

D18

1SV

305

L35

150n

C12

9

11p

R10

812

0k

C13

047

0p

R11

01.

0M

C15

247

0p

XF1L71-0619-05

C12

6

10p

C14

1

470p

C14

58p (B

)

L41

6.8n

L32

27n

C15

8

13p

(G)

L38

12n

L34

27n

C12

5

1.5p

R90

330

R35

1

220

C156470p

D21

1SV

305

C142

470p

D19

1SV

305

C14

4

18p

(G)

R10

1

47

C16

1

3p(B

)

R10

415

0

R10

910

0k

R98

100k 3SK318

Q17

R95

180k

C14

86p

(B)

C165 3p

(B)

R96

100k

R99

1.0M

C13

4

470p

C15

347

0p

C14

7

470p

C159 3p

(B)

R10

0

1.0M

R92

3.3k

C16

0

13p

(G)

C16

3

470p

C15

7

18p

(G)

R93

47

R94

330

C137

7pC136

5p

C13

9

470p

C13

5

5p

L24

27n

L28

12n

L29

15n

L27

680n

R353

0

+B5T

VGGVDD

ANT

RF SW

RF SW

RF AMP

5R

DRIVEAMP

Q10 OPERATION SW

5T

VOLTAGEDROP

DRIVEAMP

5T

OVER INPUTPROTECTION

ANTENNA SWD12,13

ANTENNA SW

ANTENNA SW

5T

POWERAMP

Q12 GATEVOLTAGE SW

APC

+B

KAPC(APC KILL)

1st MIXER

RX 1st AMP

5R

TEMP COMPENSATION

KAPC

5R

X57-675X-XX

APC DIFFERENTIALAMP

APC OUTPUT SW

VGG

APCCIRCUITOPERATIONSWITCH

5T

5T

BPF/APC

TH-K4AT

TH-K4E

FINALTEMP

B+IN

B-IN

BOUT

V+

D14

REVERSE CURRENT PREVENTION

APC OUTPUTVOLTAGE LIMITTER

D15

1st IF

38.85MHz

D18,19

RX BPF TUNING RX BPF TUNING

D20,21

0-21

2-71 E

M2

NO

D44

B30-2205-05

NO

B30-2205-05

D47

MA2S111

NO

D60

MA2S111

D62

NO

D63

MA2S111

NO

R230

220

NO

C374

NO

100p

C512

100p

NO

Reference voltage value are measured when the power supply voltage is 13.8V(DC IN).

2.03V

T:4.31VR:0V

1.43V

T:4.86VR:0V

1.98V

10.37V

4.91V

10.56V

T:0VR:0V

4.56V

2.80V

4.30V

4.56V3.10V

3.14V

2.30V(HIGH POWER)

Note : The components marked with adot ( ) are parts of layer1.

X57-675 5/5


-t

-t

-t

-t

5R

5MS

R12

6

27k

2SC4919Q29

R194

10k

C258

0.1u

C290

470p

SEG31

C246

100u10

R14

0

10k

R25

2

100k

IC16NJM2904V

1

2

3

4GND

5

6

7

8V+

R155

100k

C36

747

0p

Q51RN4902

SE

G5

C30

8

470p

R313

3.3k

R238 1k

C26

470p

CP23.9k

R31

2

4.7k

C34

6

470p

R206

15

IC10S-80844CNNBB85

1O

UT

2V

DD

4V

SS

3N

C

COM3

R27

5

47k

C17

470p

CP

331k

D5

HSC277

D80DA221

C31

0

1u

R235

1k

D40

B30

-215

6-05

CO

M2

SE

G3

L58

820n

C30

2

470p

C54

470p

SE

G26

SE

G4

C24

470p

R183

33k

C52

10p

C167

0.1u

R27

3

1k

R32

3

4.7k

CN71

2

3

4

5

6

R17

4

560k

CP

321k

R200

10k

Q53

RN

2701

R318

1k

C20

7

0.02

2u

2SK1830Q35

C352

470p

R15

1

1.2k

C202

270p

CO

M3

C311

0.1u

2SC4617(R)Q4

C25

7

1000

p

R191

47k

D25

MA2S111

D43

B30

-220

5-05

R21

210

k

R342 0

R21

5

470k

C25

5

10u1

0

SEG5

D30RB521S-30

D46

B30

-220

5-05

R25

61k

MIC1

C191

0.01u

R182

1k

R17

9

220k

D79DA221

SE

G6

SE

G23

SEG18

C187

2p

CP

341k

R12

7

47

CP313.9k

L64

4.7u

R27

24.

7k

R11

55.

6k

R161

1.8k

2SC5488Q6

C30

547

0p

C29

5

5p

C228

0.1u

R201

4.7k

R20

4

180k

R343 0

R21

8

0

SE

G17

SEG17

C19

8p

2SC5488Q2

C31

3

0.03

9u

SE

G1

C22

60.

1u

CN61

2

3

4

5

6

R285

0

D16

MA2S111

R164

47k

R26

3

10k

C170

0.068u

C34

447

0p

F3

0.5A

C28

61u

R117

2.7k(D)

J4

SP

D26

1SS

388

SE

G21

Q22RN2105

C180

120p

R19

8

10k

IC8

90522BPFFG139

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

313233343536373839404142434445464748495051525354555657585960

61COM2

62COM3

63VSS

64SEG16

65SEG17

66SEG18

67SEG19

68SEG20

69SEG21

70SEG22

71SEG23

72SEG24

73NC

74NC

75SEG25

76SEG26

77SEG27

78SEG28

79SEG29

80SEG30

81SEG31

82V0

83V1

84V2

85V3

86HST(VCC)

87MD2

88MD1

89MD0

90RESET

91V

SS

92X

0

93X

1

94V

CC

95P

WR

SW

96IN

TU

P

97IN

TD

W

98D

CD

ET

99R

XLE

D

100

BS

FT

101

PLL

EN

102

PLL

LD

103

KIN

0

104

KIN

1

105

KIN

2

106

KIN

3

107

KIN

4

108

TY

PE

109

VU

KE

Y

110

MIC

M

111

NO

AA

112

5R

113

SH

IFT

114

5T

115

KO

UT

0

116

KO

UT

1

117

KO

UT

2

118

KO

UT

3

119

VS

S

120

BT

DE

T

C18

6

24p

C1

0.01

u

C11

470p

C25

6

1000

p

R20 1k

SE

G2

C22

3

470p

C16

8

0.1u

SEG1

R153

1k

R310

3.9k

C46

100p

D36

RB521S-30

C24

2

0.01

u

C30

91u

CP

12.

7k

D27RB706F-40

C34

5

470p

R15

5.6k

R5

100k

R21

6

10k

R28

6

0

R1243.3k

SE

G24

C41

4.7u

6.3

C27

10u1

0

L46

560n

R207

1k

C29

4

5p

SEG19

C23

9

470p

CF1L72-0968-05

C208

82pR

177

10k

L922

n

C36

6

470p

D72

MA

2S11

1

C4

470p

2SJ347Q36

SEG6

C205

0.047u

R242

330k

SE

G19

C22

4

0.1u

R9

150

R17

3

15k

R147

10k

C24

9

470p

R32

6

0

R236 1k

IC11S-80930CNNBG80

1VSS

2VDD

4OUT

3CD

D35

RB521S-30

CN81234567891011121314

SE

G16

SEG11

C30

7

0.1u

R13

5

470k

C45

100p

R116

120k

R346

100

R210 12

SE

G18

R37 27k

R15

22.

2k

J2

R35

50

SEG30

R332 15

L63

S7S70-0485-05

C31

7

470p

R18

33

SE

G22

C30

047

0p

R197

100

C3600.1u

R7

47k

D24MA742

C281 470p

C36

5

470p

IC6 TA7368F

1

2

3

4

56NF

7PHASE

8PRE-GND

9PW-GND

10POUT

L50R203

470k

Q52RN1107

IC5NJM2107F

1

2

3 4

5V+

C190

0.01u

D42

B30

-220

5-05

C20

5p

CP

351k

R36 10

IC9

TK

1125

0CM

1 2 34

VO

UT

5G

ND

2

6V

IN

IC15AT25160N10SI27

1

2

3

4 5

6

7

8

2SK1830Q31

SE

G12

CN91234567891011121314

C24

1

470p

C22

4p

C174

180p

SE

G0

J3

MIC

SEG8

R6

1k

D64

MA

2S11

1

Q47

RN

1701

R25

41k

R283

0

C10

0.01

u

D32RB051L-40

D48

B30-2237-05

SE

G15

R119

1.8k

SEG22

C229

0.1u

CN1

1

2

3

4

5

6

SE

G11

C220

4700p

C17

5

22p

C24

3

470p

C56

470p

C27

6

470p

C19

7

0.02

7u

SEG0

R32

547

k

SEG21

R18

147

0

R144

0

C12

4

0.1u

R163

470k

C35

5

0.01

u

C316

0.1u

C17

6

0.1u

C284470p

C24

7

0.1u

R23

0*

CN21

2

D221SS361

C42

470p

R12

5

560

SEG7

C13

0.5p(B)

C40 0.1u

C24

8

0.1u

R11 150k

R22

6

220

SE

G29

C3350.1u

R25

31k

C30

3

150u

6.3

SEG20

D71

MA

2S11

1

C173

180p

R156

100k

C23

1

470p

D81RB521S-30

C219

0.047u

2SK1830Q27

2SC4617(R)Q21

X1

12.8MHz

L77-1931-05

VC

GND OUTPUT

VCC

C31

9

10u1

0

R132

2.2k

R246

3.9k

R122

2.7k

LV

2SK1830Q3

R195

100

2SC5488Q5

SE

G27

SEG25

2SC5488Q24

C33

0

470p

TH

3

100k

R128

3.3k

R38

27k

R20

2

47k

COM0

CPH3317Q55

R13

0

100

C210 0.01u

2SC4617(R)Q38

C225

1u

D31DA221

C35

4

470p

TH

4

100k

F1

2.5A

SEG3

D33

RB051L-40

R33

6

220

R145

4.7k

C31

8

470p

C22

7

2.2u

4

C358

0.047u

C37470p

C18

2

0.1u

R32

8

470k

R23

1

150

R20

5

100

R141

1k

SE

G9

D65

MA

2S11

1

R18

847

IC4

XC

6202

PB

52F

R

124

GN

D

3

C359

0.1u

SEG13

C221

0.01u

R330

470

R11

827

k

SE

G28

SEG24

C27

9

470p

R25

5

0

L53

12n

C338

1u

2SC4617(R)Q30

C24

0

470p

R17

3.3k

C51

22p

C285

470p

C17

2

1800

p

IC12

TK

1125

0CU

CB

1N

P

2G

ND

3C

ON

T4

VIN

6V

OU

T

R22

7

100

SEG12

R19

3

1.8k

SE

G30

C270470p

R33

7

470

C18

3

0.1u

R33

5

1k

C169

0.068u

CPH3417Q56

R14

8

5.6k

D60

*

SEG2

X3

7.98

2MH

z

R178

0

R282

0

R32

1k

R120

2.7k

R13

3

1k

CO

M0

C31

2

0.03

9u

D70

MA

2S11

1

C21

470p

L49

R16

2

270k

2SK1830Q34

SE

G14

SEG23

C6

470p

D7

MA

2S11

1

R243

330k

SE

G13

C195

10u10

C293

47p

SEG14

C7

0.5p (B

)

R12

47

C291

470p

R18

5

270k

C193

4.7u6.3

C166

0.01u

SEG29

D41

B30

-215

7-05

IC1LMX2316TMX

12345678G

ND

3

CE

CLK

DAT

A

LE FO

/LD

VC

C2

VP

C43

0.01

u

C3320.1u

C50 22p

IC3TA31136FN

123456789

AF

OU

T

10Q

UA

D

11IF

OU

T

12R

SS

I

13N

-DE

T

14N

-RE

C

15G

ND

16M

IXIN

R16

0

4.7k

C282 470p

R8

100k

D63

*

C28

0

470p

R10 47

C18

947

0p

C17

1

470p

C201

1200p

SE

G8

C22

2

0.01

u

R134390k

R27

6

47k

C23

8

470p

R4

1k

R20

810

SEG28

R18

0

39k

C236

0.01u

R27

7

47k

R131 330k

COM2

C57

10p

2SK1830Q20

R21

3

22k

C235

0.01u

R16

270

C30

447

0p

L67

C25

0

1u

R237 100k

C30

470p

R21

4.7k

D34

MA

ZS

0270

H

R35 120k

COM1

SEG27

C252

100p

C347

470p

R14

3.3k

C15

12p

C511

470p

R18

9

0

C206

0.018uC

230

1u

SEG9

SE

G10

R19

120k

C353 470p

C38

0.01u

R199

1k

Q57RN2105

VR550k

C18

824

pD69

MA

2S11

1

C5

0.1u

R123

1.8k

LCD (B38-0881-05)

1C

OM

0

2C

OM

1

3C

OM

2

4C

OM

3

5S

EG

0

6S

EG

1

7S

EG

2

8S

EG

3

9S

EG

4

10S

EG

5

11S

EG

6

12S

EG

7

13S

EG

8

14S

EG

9

15S

EG

10

16S

EG

11

17S

EG

12

18S

EG

13

19S

EG

14

20S

EG

15

21S

EG

16

22S

EG

17

23S

EG

18

24S

EG

19

25S

EG

20

26S

EG

21

27S

EG

22

28S

EG

23

29S

EG

24

30S

EG

25

31S

EG

26

32S

EG

27

33S

EG

28

34S

EG

29

35S

EG

30

36S

EG

31

KTC4082Q23

SE

G7

R17

6

820k

CD1450kHz

R211

470k

R13

7

4.7k

SEG26

VR1

100k

C31

4

470p

R209

100k

R248

3.9k

C23

7

10u1

0

C336

0.1u

R21

7

820

SE

G25 Q41

RN2105

C348

470p

D62

*

C44

100p

SEG16

R190

47k

C27

1

470p

C198

1u

D47

*

2SB1184(Q,R)Q37

C19

4

0.1u

C27

2

470p

C25

470p

SEG15

2SB1184(Q,R)Q33

C19

6

0.02

7u

R196

10k

C253

10u10

C18

470p

C14

470p

SE

G31

SE

G20

C209 470p

L818

n

R192

470

R175

2.2k

SEG4

2SK1830Q50

C55

0.01

u

D49

B30-2237-05

L45

560n

CO

M1

C30

647

p

SEG10

D44

*

C19

2

0.01

u

C28

347

0p

R21

4

10k

D13

HV

C13

1

R47

5.6k

L65

27n

2SK2596Q11

C78

470p

C96 1p

(B)

CN10

L17

2.5n L21

4T

R41

270

D73

MA

2S11

1

2SK3476Q12

D12

HV

C13

1

C82

470p

C364

18p

L54

4.7n

C363

10p

C61

470p

R56

10k

L18

220n

C36

9

470p

C83

0.01

u

R64

0

C36

1

470p

R46

10k

R39

270

L19 4T

C93

3p

(B)

2SK1830Q58

C32

4

470p

C97

4p

(B)

C100 2p

(B)

C95

2p

(B)

2SC4617(R)Q15

R271

12

R33

22

D8

HSC277

L14

4.7n

L20

4T

R54 47

C75

470p

C94470p

L30

C66

0.1u

R55

4.7k

C32

81u

C67

470p

R49 1k

R62 270

C64

470p

C72

0.1u

C71

470p

R53

1k

R60

56k

C329

12p

C91

470p

C99

5p

(B)

C32

3

470p

L10

18n

R45

3.3k

L22

4T 4T

R42

0

R347

150

R58

47

C88 20

p

(G)

D10

HVC131

C70 1u

C86

56p

L23

1u

L11

15n

L16

L13

L56

6.8n

R289

0

R51

470

C10

23p

(B)

R50 33

D9

HSC277

L15

4.7n

C77

47p

C89

33p

R61 270C35

7

1u

D11

HVC131

C84

0.1u

C32

7

0.1u

2SC5488Q9

C87

18p

C73

470p

R34

4

47

R52

1k

C10

14p

(B)

C90

470p

C76 8p

C98 2p

(B)

C65 10p C326

470p

D74

HS

M88

AS

C68

10p

2SC4926YDQ10

R59

12k

R34

3.3k

R34

8

68

R85 560

R77

150k (D

)

Q14RN4902

R78

150k

(D)

C11

3

470p

R86

5.6k

TH

1

10k

C11

8

470pC112 470p

R74 100k

(D)

D14

RB

521S

-30

R71

0.39

R70

0.39

R83

56k

C10

9

470p

2SK1830Q13

C10

5

470p

C108

100p

R82 27

k

C10

6

470p

C11

5

470p

C11

147

0p

C11

7

470p

R76 150k

(D)C51

2*

R75

100k (D)

R80

10k

IC2 NJM2904V

1AOUT

2A-IN

3A+IN

4GND

5

6

7

8

R84

100k

R81 390k

C10

7

470p

R72

0.39

C11

6

10u4

C11

4

470p

R79

150k (D)

D15

MA

8039

C356 0.01u

C110 470p

L25

C13

2

0.01

u

C16

447

0p

C162

470p

3SK318Q16C128

0.01u

R10

710

0k

L36

56n

R88

330

D20

1SV

305

R10

3

1.8k L4

0

4.7n

R97

150k

C13

1

0.01

u

L26

470n

R91 1k

R352

0

R11

11.

0M

C146

4p (B)

C140

4p (B)

C13

3

0.01

u

D18

1SV

305

L35

150n

C12

9

11p

R10

812

0k

C13

047

0p

R11

01.

0M

C15

247

0p

XF1L71-0619-05

C12

6

10p

C14

1

470p

C14

58p (B

)

L41

6.8n

L32

27n

C15

8

13p

(G)

L38

12n

L34

27n

C12

5

1.5p

R90

330

R35

1

220

C156470p

D21

1SV

305

C142

470p

D19

1SV

305

C14

4

18p

(G)

R10

1

47

C16

1

3p(B

)

R10

415

0

R10

910

0k

R98

100k 3SK318

Q17

R95

180k

C14

86p

(B)

C165 3p

(B)

R96

100k

R99

1.0M

C13

4

470p

C15

347

0p

C14

7

470p

C159 3p

(B)

R10

0

1.0M

R92

3.3k

C16

0

13p

(G)

C16

3

470p

C15

7

18p

(G)

R93

47

R94

330

C137

7pC136

5p

C13

9

470p

C13

5

5p

L24

27n

L28

12n

L29

15n

C29

22u6

.3

L5

270n

2SK508NV(52K)Q1

L627

0n

C8 5p (B)

C3

2p(B

)

L3

22n

C2

39p (G)

L2

270n

CN15 CN17

L4

6.8n

D3

HV

C37

6BD

4

HV

C37

6B

D1

HVC376BD2

HVC376B

L1

270n

C34

2.2u

6.3 C

33

0.22

u35

R31

2.2k

C35

0.1u

35

R24

1.2k

R30

1k

C37

1

470p

C37

2

470p

C37

0

470p

D61

MA

2S11

1

C36

847

0p

L68

C20

0

0.01

u

R154

4.7k

R143

27k VR650k

TH

2

100k

R13

9

4.7k

R146

4.7k

R142

1k

R165

820k

C349

0.1u

R158

330k

IC17NJM2904V

1 2 3 4G

ND

5678V

+

C33

9

0.04

7u

C20

4

0.03

3u

R324

47k

C331

470p

C21

1

2200

p

C20

3

120p

R168

180kC212

0.012u

R15

9

120k

R16

6

820k

R167

180k

C35

1

0.01

u

C21

3

4.7u

6.3

R17

1

39k

(D)

R170

56k(D)

R15

7

330k

C9

5p(B

)

C17

7

10u1

0

C17

8

0.01

u

C17

9

0.1u

C374*

C510

0.047u

D6

1SV

278

L27

680n

R223

100k

R234

18k

R353

0

R35

4

33k

R241

330k

R24

010

0k

C29

91u

C29

847

0p

NI-MHTEMPERATUREDETECTION

IF AMP

SQ FILTER

D1-4

RF AMP

5R

VCO FREQUENCY CONTROL

KIN

3

SM

V

RF AMP

GND

FREQUENCY SHIFT

SQ

V

BL

RIPPLE FILTER

KYO1

VCO SHIFTCONTROL SW

Q37

RF AMP

KYO2

AF MUTE SW

VCO

KIN4

PTT

RESET

TX/BUSYLED SW

INT0

KEY LED SW

SET

LCD LED SW

SHIFT

VO

LIN

+B

VOLOUT

+B

D81

BEAT SHIFT SW

Q36

5T SW

Q33 OPERATION SW

AVRCONSTANT-VOLTAGE

5C SW5MS SW

5T

5C/5R/5T AVR5C/5R/5T AVR

SP

5C/5R/5T AVR

5T

T0

+B

SPG

DCS BAL

SP MUTE SW

EEPROM

REM

DC IN

CHARGE SW

2nd L.O.

PLLENDATACLOCKPLLLD

Q31

450kHz

Q56 OPERATION SW


AF FILTER

5.0V AVR

TX-RX UNIT(X57-675X-XX)(C/3)

FM IC


SPK

MARKET CODEDETECTION

SPG

D62-65

PLL ICFREQ

D69-72

PTT BOARDREVERSECURRENTPREVENTION

BIT

0

SPEED UP

DC INDETECTION

KEYILLUMINATIONLED


BTEMP

PTTE

ENCB

TXD

ENCA

RE

M

RXD

D42-44,46,47

BIT

3

5MS

BIT

1

BIT

2

TYPE

KE

Y

W/N

8 OHM

MICM

LAMP

CHARGE

PTT

JUM

PE

R

MIC ALCRECTIFICATION

MONIMIC MUTECONTROL


D79,80

MENU

LIMITER

SP MUTESPEED UP

4

VOX DETECTIONRECTIFICATION

CALL

11.5V AVR

5C/5R/5T AVR

#

5MS

0

8V

BATTERYTERMINAL

TX-RX UNIT(X57-675X-XX)(B/3)

AF AMP/LAMP AVR

8M

VFO

KIN

4DTMF/BEEP/1750

5

MIG

VOXDETECTION AMP

F/CALL


LAM

P

5MV

10KEY BOARD

GN

D

KY

O0

1/F

KIN

2

MICMUTESW

TRIPLER

KY

O1

6

KIN

0

KY

O2

SQV

*

MIG

2/VFO

D6

VO

LOU

T

PO

WE

R S

W

VCO MODULATION

IM

KIN

1

IM

CTCSS/DCS FILTER

KY

O3

MIC AMP

5R/5MVSW

PTT

5R


MIC

5R

3/MR

5R


MIG

DT

MF

/175

0

SPM

MAX DEV5.0V AVR

TXD

IM

MPU

CONSTANT-CURRENTCIRCUIT

IM

REM/TXD

AF AMP

PTTESPK

HPF

AFO

RXD

SMV

VGGVDD

ANT

RF SW

RF SW

RF AMP

5R

DRIVEAMP

Q10 OPERATION SW

5T

VOLTAGEDROP

DRIVEAMP

5T

OVER INPUTPROTECTION

ANTENNA SWD12,13

ANTENNA SW

ANTENNA SW

5T

POWERAMP

Q12 GATEVOLTAGE SW

APC

+B

KAPC(APC KILL)

1st MIXER

RX 1st AMP

5R

TEMP COMPENSATION

KAPC KAPC

5R

V/U

5M

QT/DQT

X57-675X-XX

5R5MV

5T

APC DIFFERENTIALAMP

APC OUTPUT SW

VGG

APCCIRCUITOPERATIONSWITCH

5T

5T

PTTE

SPM

RXD

TXD

5T

TEMP

+B

5MS

LAM

P

BPF/APC BPF/APC

BPF/APC BPF/APC

BPF/APC

TH-K4AT

TH-K4E

R239

MOD

ENCB

5MS

TO

VOLIN

NAR

ENCA

5MS

MO

D

NA

R

VO

LIN

EN

CB

EN

CA

BUSY LEDTX LED

ROTARYENCODER

&VOL KNOB

GND

ENCA

GND

ENCB

VOLIN

VOLOUT

1

VCC

VIN

RIPPLE

D26

C246 DISCHARGE

VO

UT

VS

S

VIN

D33,35,36

REVERSECURRENTPREVENTION

Q38

Q37 OPERATION SW

DCDETBTDET

8V

BTEMPCHARGE

AFAMP5M

+B

8V

BTDETDCDET

5M

CHARGE

+BBTEMP

AFAMP

TXD

IM

RXD

MIG

SPM

PTTE

MICMRXD

IM

SPM

PTTE

MIGTXD

IM

MICM

TXDSPM

RXD

MIG

PTTE

REM

TONE

VOXIN

DTMF/BEEP

RXLED

REM

TONE

VOXIN

DTMF/BEEP

RXLED

SIGIN

VOLIN

NAR

ENCA

MOD

ENCB

5C

TO

5MS

5RQT/DQT

5T

5MV

+B

5C

+B

5MS

ENCB

NARTO

SIGIN

MOD

5T

5RQT/DQT

ENCA

VOLIN

5MV

SE

G14

SE

G15

VS

S

C0R

1

EN

CA

EN

CB

5MS

DV

CC

DV

SS

DT

MF

/BE

EP

TON

E

AV

CC

AV

RH

AV

RL

AV

SS

RE

M

SIG

INSQ

SM

VO

XIN

TH

ER

M

BAT

T

BT

EM

P

VC

C

CH

AR

GE

LAM

P

AFA

MP

NA

R

CO

M0

CO

M1

CLOCK

DATA

EEPDI

EEPCS

VOX

BPF/APC

KAPC

VCC

AFM

SPM

RXD

TXD

PTTE

PTTI

5C(SAVE)

FINAL

SEG0

SEG1

SEG2

SEG3

SEG4

SEG5

SEG6

SEG7

SEG8

SEG9

SEG10

SEG11

SEG12

SEG13

KA

PC

AF

M

SH

IFT

FIN

AL

CLO

CK

DAT

A

PLL

EN

PLL

LD

5MS

5MV

CLOCK

5T

NAR

VOLIN

+B

SQVSMV

PLLLD

KAPCAFM

PLLEN

SHIFT

TO

MOD

5R5C

DATA

QT/DQT

FINALTEMP

5M

QT/DQT

5MV

+B

SQVSMV

DATAKAPC

PLLLD

AFM

PLLEN

SHIFT

NAR

5T5MS

TO

MOD

5R5C

VOLIN

CLOCK

TEMPFINAL

5M

BATT

LAMP5MS SW

SI

SCK

HOLD

VCCCS

SO

WP

GND

5M

+B

8V

IMMIG

5M

PTTI

5C SW

5R SW5T SW

VOX

EEPCS

EEPDI

BPF/APC

INT0

PWR SWRESET

KIN4

KOUT2

KIN0

KOUT1

TYPE

KIN1

VUKEYKOUT0

KOUT3

KIN3KIN2

5M

+B

5C/5R/5T AVR

IMMIG

8V

RESET

5R SW5T SW

PWR SW

INT0

VUKEY

KIN3

KOUT0

TYPE

KIN2

KOUT3

KOUT1

KIN1KIN0

KIN4

KOUT2

VOX

BPF/APC

EEPDI

EEPCS

5C SW

PTTI

5M

BATT

5MS SWLAMP

5C5MS

DAT

A

CLO

CK

D61

UHF TYPE DETECTION

KEY TYPE DETECTION

D60

D48,49

LCDILLUMINATIONLED

5T

NAR

VOLIN

+B

SHIFTPLLLD

5C

PLLEN

AFMKAPCDATA

QT/DQT

5MS

5R

TO

MOD

CLOCK

SMVSQV

FINALTEMP

PLLLDPLLEN

SHIFT

+B

5C

NAR

VOLIN

5T

QT/DQT

5MS

5R

TO

MOD

CLOCKDATAKAPCAFM

SQVSMV

TEMPFINAL

DAT

A

5R

CLO

CK

TO

PLL

LD5C

SH

IFT

AF

M

5MS

PLL

EN

MO

D

NA

R

QT

/DQ

T

SM

VS

QV

VO

LIN

VO

LIN

PLL

LDC

LOC

K

5R

PLL

EN

AF

M

5CSQ

VS

MV

QT

/DQ

T

NA

R

DAT

A

BP

F/A

PC

SQ

VS

MV

NA

R

AF

M5R

BP

F/A

PC

OS

CIN

OS

CO

UT

MIX

OU

T

VC

C

IFIN

DE

C

FIL

OU

T

FIL

IN

FLO

CP

O

GN

D1

GN

D2

FIN

FIN

VC

C1

OS

CI

D16

PLL LOCK DETECTION

KAPC

TEMPFINAL

FINALTEMP

FINALTEMP

B+IN

B-IN

BOUT

V+

D14

REVERSE CURRENT PREVENTION

APC OUTPUTVOLTAGE LIMITTER

D15

1st IF

38.85MHz

D18,19

RX BPF TUNING RX BPF TUNING

D20,21

0-21

2-71 E

M2

NO

D44

B30-2205-05

NO

B30-2205-05

D47

MA2S111

NO

D60

MA2S111

D62

NO

D63

MA2S111

NO

R230

220

NO

C374

NO

100p

C512

100p

NO

9 10 11 12 13 14 15 16

8 9 MR7

1k

C29

70.

1u

R244

0


CO

NT

GN

D1

NP

R17

2

10k

R18

6

68k

T:4.95VR:0V

Reference voltage value are measured when the power supply voltage is 13.8V(DC IN).

1.51V 4.81V

4.95V

T:3.29VR:110mV

T:73mVR:3.39V

T:0VR:4.62V

ON:4.91V

ON:4.92V

4.63V

3.76V

T:4.95VR:0V

3.23V

7.14V

4.93V

13.57V

4.80V

4.79V

4.98V

4.83V4.95V

ON:6.98V

7.12V

11.43V

13.8V

13.40V

4.63V

T:0VR:4.90V

5.03V

T:4.95VR:0V

T:4.99VR:0V

0.72V

0.51V

4.77V

W:115mVN:4.94V

4.42V

2.03V

T:4.31VR:0V

1.43V

T:4.86VR:0V

1.98V

10.37V

4.91V

10.56V

T:0VR:0V

4.56V

2.80V

4.30V

4.56V3.10V

3.14V

4.81V

2.30V(HIGH POWER)

T:0VR:4.90V

2.02V

Note :The components marked with adot ( ) are parts of layer1.


GMC

Downloaded

TH-K4AT/K4E

55

BPF

Q10

Q11

Q24

Q12

Q9

BPF

Q16

Q17

0.28Vrms

IC3

ANT

-21.00dBm

FILTER

14.00dBm

5.67dBm

-36.33dBm

ANT

SP

AF(1kHz)

FM IC

-20.00dBm

-53.00dBm

7.33dBm

8.23mVrms

0.83Vrms

26.33dBm

-60.50dBm

IC6

ANT

27.50dBm

RF(435.05MHz)

-40.33dBm

50Ω

AF(1kHz)

AMP

14.17dBm

0.58Vrms

IF(38.85MHz)

0.66Vrms

9.70Vrms

MIC

ANT

-42.33dBm

vco

RF(435.05MHz)

MIC AMP

11.50dBm

FILTER

-41.17dBm

vco

IC16

-4.00dBm

LEVEL DIAGRAM

All

volta

ge le

vels

mus

t be

mea

sure

d at

Hig

h po

wer

tra

nsm

issi

on.

The

RF

and

IF s

ectio

ns a

re m

easu

red

by u

sing

a s

pect

rum

ana

lyze

r.A

fter

set

ting

the

stan

dard

(1 k

Hz,

3 k

Hz

Dev

.) de

viat

ion,

eac

h vo

ltage

of t

he A

F se

ctio

n is

mea

sure

d by

usi

ng a

n A

F V

TVM

or

osci

losc

ope.

The

leve

l for

eac

h po

int i

s m

easu

red

with

out r

emov

ing

part

s or

cut

ting

the

patt

ern.

All

volta

ge le

vels

mus

t be

mea

sure

d af

ter

sett

ing

the

AF

outp

ut v

olt-

age

at 0

.58V

rm

s.Th

e R

F an

d IF

sec

tions

are

mea

sure

d by

usi

ng a

spe

ctru

m a

naly

zer.

Eac

h vo

ltage

of

the

AF

sect

ion

is m

easu

red

by u

sing

an

AF

VTV

M o

ros

cilo

scop

e.Th

e le

vel f

or e

ach

poin

t is

mea

sure

d w

ithou

t rem

ovin

g pa

rts

or c

uttin

gth

e pa

tter

n.

Tra

nsm

itte

r S

ecti

on

Rec

eive

r S

ecti

on

TH-K4AT/K4E

56

BLOCK DIAGRAM

J3

Q23TCXO

LOOP FILTER

LPF

Q6

D1,2,3,4

Q1

Q3

SHIFT SW

OSC

12.8MHz

D74,D79

IC5

HPF

Q30

VOX AMP

Q29,D22,D27

MIC AGC

IC16

SPLATTER FILTER

LIMITTER AMP

Q27

WIDE/NARR

IC8

MPU

HVC376B

2SK508NV (52K)

2SK1830

KTC4082

2SK18302SC4617(R)2SC49191SS361RB706F-40

NJM2107F NJM2904V

DA221

TRIPLER

2nd Local

INT

S-80844 CNNBB85

IC10

RESET

IC11S-80930CNNBG80

IC15AT25160N 10SI27EEPROM

BEAT SHIFT

Q52RN1107

LCD

1SV278D6

REM,SQ,SM,BATT

DTMF/BEEP,TONE

BPF/APC

SEG0~31COM0~3

RXD,PTTE,PTTI,ENCA,ENCB,PWRSW,KIN0~4,TYPE

AFM,SPM,MICM,KAPC,FINAL,CHARGE,AFAMP,RXLED,BTDET,TXD5MS,5R,5T,5C(SAVE),VOX,KYO0~3,VUKEY

VCC,DVCCAVCC,AVRHHST(VCC),V3RESET

INTUPINTDW

CLOCKDATAEEPCSEEPDI

BSFT

X0

X1

PLLENPLLLDCLOCKDATA

BTEMP

KEY ILLMI

B30-2205-05

D42,43,46D44,47

2SK1830Q50

KEY ILLMI SW

LAMP

PTT

LAMP

MONI

D48,49RN4902

LCD ILLMI SW

Q51B30-2205-05

LCD ILLMI

DCDET

MOD

PTTIKIN4

KYO1KYO2

2SC5488

RF AMP

SIGIN

NAR

X57-675 B/3

NAR5MV

5R

5C

SHIFT

5C

Q47RN1701

TX/BUSYLED SW

TX/RX LED

B30-2156-05D40,41

B30-2157-05

5T

RXLED

5C

D24MA742

VOX DET

VOXIN

5T

5MV

VR1

5MS

VR5

VR6

TONE

TONE

KIN0~3

KYO0~3

VR6

VSS,DVSS,AVSS,AVRL

MICM

DTMF/BEEP

X57-675 C/3

H/L

H/L

D/A

A/D

PWM

X1

SWLIMITTER

PTTE/RXD

5M

X57-675 A/3

IC1

PLL IC

LMX2316TMX

TH-K4AT/K4E

57

BLOCK DIAGRAM

J4

Q24

XF1Q16

Q2 Q5

Q4,D7

LIPPLE FILTER

RF AMP RF AMP

D8, D9 Q9 Q10 Q11 Q12 D10,11

LPF

FINAL AMP ANT SW

Q58

BIAS SW

DRIVE AMPPRE-DRIVERF AMPTX/RX SW

Q17D18,D19 D20,D21

IC3

CD1

CF1

TA31136FN

FM IC IF AMP

MCF

RF AMPBPF BPF

AF AMP

IC6Q20

AF MUTE SW

Q21

AF FILTER

LPF

WIDE/NARR SW

Q22

Q15

SW

B

IC2

APC AMP

NJM2904V

Q14RN4902

APC SWAPC KILL SW

2SK1830

38.85MHz

3SK318MIXER

3SK3181SV305 1SV305

HVC1312SK34762SK25962SC4926YD

2SC4617(R)

HSC277 2SC54882SC54882SC5488

2SC4617 2SK1830 TA7368FRN2105

SW

Q132SK1830

5T

5T

38.4MHz

DE-EMPH

BATT CHARGE

Q332SB1184

(Q,R)

Q34

CHARGE SW

2SK1830

THERM DET

Q362SJ347

+

-

T

2SC5488

CT/DCS FILTER

IC17NJM2904V

5C5R

5C

5R

5R5R 5R BPF/APC

B

5R AFM AF AVR

BPF/APC

SPM

TEMP DET

TH1B57331V

2103J

5R

5R

APC V

D14RB521S-30

CHARGE

FINAL

DTMF/BEEP

SQ,SM

J2

ANT

REM

/TXD

AMP

450kHz

(R)

BATT TERMINAL7.5V Norminal(6.0 - 9.0V)

B

DC IN

13.8V Norminal(12.0 - 16.0V)

D33

PROTECT

RB051L-40

RB051L-40

PROTECT

D32

PROTECT

RB521S-30D81

VR

BPF/APC

B

PROTECT

D30RB521S-30

Q56CPH3417D261SS388SP MUTE SW

2SK1830D25MA2S111

Q31

MUTE SW

D12,D13

ANT SW

HVC131

D17HSM88AS

ANT SW

CN2

IC6D48,49D42,43,46D47,44

5MV

PROTECT

PROTECT

XC6202PB 52FR

5MS

Q55

IC9

5MS SW

2SK1830

AVR

BTDET

Q9,10,13D8,10TH1IC16Q47

5C

CPH3317 RB521S-30D36

Q57

VR1ENC

Q37, Q38

5M

11.5V

5.0V

5C SW

5.0V

RB521S-30

5T SW

5R

D35

5R SW

IC1TCXOQ4,5,6D40,41

IC4

AVR

AF/LAMP AVR

IC12Q53

RN2105

Q41

DC-IN DET

IC5Q30 RN2701

AVR

AF AMP

TK11250 CM

IC3,17D9,14Q16,17Q22,23,24

TK11250 CUCB

5MV SW

5T

2SB1184(Q,R)2SC4617(R)

RN2105

Q35

TH-K4AT/K4E

58

BC-21 (WALL CHARGER) / PB-43N (Ni-MH BATTERY PACK)

BC-21 External View

Rated output voltage ......... DC 13.8V ±5%Rated output current ......... 150mACharging time .................... Approx. 12 hours (PB-43N)

Photo is K type.

BC-21 Specifications

PB-43N External View

PB-43N Schematic diagram

T

Discharge terminal side

Rear charge terminal side

Thermister(DTN-103F3H-SYS)

T

Diode(ERB83-004)

Breaker(BBS80A2Y-01 80˚C)

Breaker(BBS70 A1N-01 70˚C)

(4N) (2N)

Thermister(DTN-103F3H-SYS)

Voltage .......................................... 7.2V (1.2V x 6)Charging current ............................ 1100mAhDimensions (Projections included) ... 58W x 100.8H x 16.8D (mm)Charger and charging time

KSC-24 (Rapid charger) ............. Approx. 60 minutesWeight ........................................... 210g

PB-43N Specifications

TH-K4AT/K4E

59

BT-14 (BATTERY CASE) / PG-4Y (PROGRAMMING INTERFACE CABLE) /MCP-1A (MEMORY CONTROL PROGRAM)

BT-14 (6 AA/LR6)

External View

PG-4Y

External View

MCP-1A

• Available free for downloading from the Kenwood website:http://www.kenwood.com/i/products/info/amateur.html

TH-K4AT/K4ESPECIFICATIONS

KENWOOD CORPORATION2967-3, Ishikawa-machi, Hachioji-shi, Tokyo 192-8525, Japan

KENWOOD U.S.A. CORPORATIONP.O. BOX 22745, 2201 East Dominguez Street, Long Beach, CA 90801-5745,U.S.A.

KENWOOD ELECTRONICS CANADA INC.6070 Kestrel Road, Mississauga, Ontario, Canada L5T 1S8

KENWOOD ELECTRONICS DEUTSCHLAND GMBHRembrücker Str. 15, 63150 Heusenstamm, Germany

KENWOOD ELECTRONICS BELGIUM N.V.Leuvensesteenweg 248 J, 1800 Vilvoorde, Belgium

KENWOOD ELECTRONICS FRANCE S.A.13, Boulevard Ney, 75018 Paris, France

KENWOOD ELECTRONICS U.K. LIMITEDKENWOOD House, Dwight Road, Watford, Herts., WD18 9EB, United Kingdom

KENWOOD ELECTRONICS EUROPE B.V.Amsterdamseweg 37, 1422 AC Uithoorn, The Netherlands

KENWOOD ELECTRONICS ITALIA S.p.A.Via G. Sirtori, 7/9 20129 Milano, Italy

KENWOOD IBERICA S.A.Bolivia, 239-08020 Barcelona, Spain

KENWOOD ELECTRONICS AUSTRALIA PTY. LTD.(A.C.N. 001 499 074)16 Giffnock Avenue, Centrecourt Estate, North Ryde, N.S.W. 2113, Australia

KENWOOD ELECTRONICS (HONG KONG) LTD.Unit 3712-3724, Level 37, Tower one Metroplaza, 223 Hing Fong Road,Kwai Fong, N.T., Hong Kong

KENWOOD ELECTRONICS TECHNOLOGIES(S) PTE LTD.Sales Marketing Division1 Ang Mo Kio Street 63, Singapore 569110

Note: All specifications (General, Transmitter and Receiver) are guaranteed within the amateur radio band.

General TH-K4AT TH-K4E

Market code M2 E

Number of memory channels 100 (50) + 8 special function memories

Antenna impedance (Connector type) 50 Ω (SMA)

Operating VoltageDC IN Jack DC 12.0 ~ 16.0 V (13.8 V nominal)

Battery terminal DC 6.0 ~ 9.0 V (7.2 V nominal)

Grounding method Negative ground

Current

Transmit with H, 13.8 V (DC IN) 1.8 A or less

Transmit with H, 7.2 V (PB-43N) 2.0 A or less

Transmit with M, 7.2 V (PB-43N) 1.5 A or less

Transmit with L, 7.2 V (PB-43N) 0.8 A or less

Receive (no signal) 100 mA or less

Battery Saver ON (Average) 30 mA or less

Usable temperature range –20° C ~ 60° C (–4° F ~ 140° F)–10° C ~ 60° C (+14° F ~ 140° F) with PB-43N

Frequency stability Within ±5 ppm (–20° C ~ 60° C)

Dimensions (W x H x D Projections not included) 58 x 110 x 28.4 mm / 2 7/16" x 4 6/16" x 1 2/16" with PB-43N58 x 110 x 29.6 mm / 2 7/16" x 4 6/16" x 1 5/32" with BT-14

weight Approx. 320 g / 11.3 oz with PB-43NApprox. 320 g / 11.3 oz with BT-14

Transmitter

Transmission Mode F3E (FM) / F2D (FM)

Frequency range 400 ~ 470 MHz 430 ~ 440 MHz

Output Power

DC-IN jack (13.8 V) H: 5.0 W (approx.) M: 1.5 W (approx.) L: 0.5 W (approx.)

PB-43N (7.2 V) H: 5.0 W (approx.) M: 1.5 W (approx.) L: 0.5 W (approx.)

BT-14 (9.0 V) H: 3.5 W (approx.) M: 1.2 W (approx.) L: 0.3 W (approx.)

Modulation Reactance

Maximum frequency deviation ±5 kHz (FM) / ±2.5 kHz (NFM)

Squrious emissions –60 dB or less (H and M power), –50 dB or less (L power)

Microphone impedance 2 kΩ

Receiver

Reception Mode F3E (FM) / F2D (FM)

Frequency range 400 ~ 470 MHz 430 ~ 440 MHz

Intermediate Frequency (IF) 1st IF : 38.85 MHz2nd IF : 450kHz

Circuit type Double super - heterodyne

Sensitivity FM (12 dB SINAD)70 cm amateur radio band: 0.18 µV or less

Squelch Sensitivity 0.13 µV or less (within 70 cm amateur radio band)

Selectivity –6 dB / 10 kHz or less–40 dB / 28 kHz or less (within 70 cm amateur radio band)

Audio output (10% distortion) 400 mW or higher (7.2 V, 8 Ω load)

GMC

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