tc-320 service manual - 691212.ru691212.ru/files/tc-320 service manual(h)01(rohs)2.pdf · tc-320...
TRANSCRIPT
8130032000010
Contents Revision History ---------------------------------------------------------------------------------------------------------1
Copyright Information -------------------------------------------------------------------------------------------1
Disclaimer------------------------------------------------------------------------------------------------------------------------1
Introduction-----------------------------------------------------------------------------------------------------------------------2
Radio Overview-----------------------------------------------------------------------------------------------------------------3
Software Specifications------------------------------------------------------------------------------------------------------4
Circuit Description------------------------------------------------------------------------------------------------------9
CPU Pins-------------------------------------------------------------------------------------------------------16
Parts List 1---------------------------------------------------------------------------------------------------------20
Adjustment Description --------------------------------------------------------------------------------33
Troubleshooting Flow Chart--------------------------------------------------------------------------------------------43
Disassembly and Assembly-----------------------------------------------------------------------------------------------46
Exploded View------------------------------------------------------------------------------------------------------49
Parts List 2--------------------------------------------------------------------------------------------------------53
Packing Diagram--------------------------------------------------------------------------------------------------------55
PCB View-------------------------------------------------------------------------------------------------------56
Level Diagram------------------------------------------------------------------------------------------------------58
Block Diagram------------------------------------------------------------------------------------------------------59
Schematic Diagram--------------------------------------------------------------------------------------------------------60
Specifications-----------------------------------------------------------------------------------------------------------------66
TC-320 Service Manual
1
Revision History Part No. Date of
Issue
Description
8130032000000 2009.4 Initial Release
8130032000010 2010.9 Circuit Description, Schematic Diagrams, PCB View, Level
Diagram, Block Diagram, Parts List 1 & 2, and Specifications are
updated.
Copyright Information
Hytera and HYT are trademarks or registered trademarks of Hytera Communications Co., Ltd. (“Hytera”)
in PRC and/or other countries or areas. Hytera retains the ownership of its trademarks and product
names. All other trademarks and/or product names that may be used in this manual are properties of
their respective owners.
The Hytera product described in this manual may include Hytera computer programs stored in memory
or other media. Laws in PRC and/or other countries or areas protect the exclusive rights of Hytera with
respect to its computer programs. The purchase of this product shall not be deemed to grant, either
directly or by implication, any rights to the purchaser regarding Hytera computer programs. Any Hytera
computer programs may not be copied, modified, distributed, decompiled, or reverse-engineered in any
manner without the prior written consent of Hytera.
Disclaimer Hytera endeavors to achieve the accuracy and completeness of this manual, but no warranty of
accuracy or reliability is given. All the specifications and designs are subject to change without notice
due to continuous technology development. No part of this manual may be copied, modified, translated,
or distributed in any manner without the express written permission of Hytera.
If you have any suggestions or would like to learn more details, please visit our website at:
http://www.hytera.cn.
TC-320 Service Manual
2
Introduction Manual Scope
This manual is intended for use by qualified technicians only.
TC-320 Service Manual
3
Radio Overview
(1)PTT (Push-to-Talk)
Key (2)SK (Side Key ) (3) Speaker
(4)Volume Adjust
Keys [+]/[-]
(5) Microphone (6) Nameplate (7) Charging Terminal (8) Antenna
(9)Power Switch (10) Channel/Status
Indicator
(11)Channel Selector
Knob
(12)Charge
Indicator
(13)Accessory Jack
Cover (14)Accessory Jack (15)Mini USB Jack (16)Strap Hole
(17)Screw (Belt Clip) (18)Belt Clip (19)Rear Cover (20)Battery Latch
TC-320 Service Manual
4
Software Specifications Status Indications
Operations/Functions LED Indications and Alert Tones
Power on the source radio while holding down SK,
and the LED flashes red once. To enter Wired Clone mode
Turn on the target radio directly.
Status of the source radio
(After the target radio is turned
on and the cloning cable is
connected, hold down PTT of
the source radio to begin
cloning.)
The LED glows red during cloning process.
Error occurs during cloning:
a. User Clone: Once clone begins, frequency band
and radio ID (Model ID) will be checked. The LED
glows orange for 2 seconds and then goes out to
indicate a failed check. If the check is successfully
carried out but error occurs during data cloning, the
LED will flash orange. In this situation, press any key
other than the Power Switch to turn it off.
b. Factory Clone: If error occurs during data cloning,
the LED will flash orange until you press any key
other than the Power Switch to cancel it.
Once cloning is completed, the LED will glow green.
And if the battery runs low in Clone mode, the LED
will flash red.
Wired Clone
Mode
Status of the target radio The LED glows green when cloning is in progress.
The green LED goes out once cloning is completed.
Power On (to enter User Mode)
When the radio is turned on, an alert tone sounds and
the LED flashes orange once.
When the radio is currently on a blank channel, it
sounds beep tones continuously.
Power Off When the radio is turned off, the power-off alert tone
is heard.
TC-320 Service Manual
5
Low Battery Alert The LED flashes red, and a low-pitched tone sounds
every 10 seconds.
Transmitting
The LED glows red during transmitting.
When the TOT timer expires, the radio sounds beep
tones continuously.
A TOT pre-alert tone sounds before the TOT timer
expires.
Receiving The LED glows green during receiving.
Scan
The LED flashes green once every second during the
scanning process.
Scan Start Alert (programmable by the dealer): one
beep.
Scan End Alert (programmable by the dealer): one
beep.
Writing/Reading The LED glows red in reading data.
The LED glows green in writing data.
Power Adjustment
A low-pitched tone is heard when the radio switches
from high power to low power.
A high-pitched tone is heard when the radio switches
from low power to high power.
Monitor/VOX The alert tone sounds once if the feature is enabled.
The alert tone sounds twice if the feature is disabled.
Description of Modes
User Mode
It is a conventional communication mode. The radio will enter this mode if you turn it on directly.
PC Programming Mode
The radio in User Mode enters PC Programming Mode through specific protocol based communication
with the programming software. In this mode, radio functions and adjustment parameters can be set
TC-320 Service Manual
6
through the programming software (including User Version and Factory Version).
The operation procedures are as follows:
1) Install PC programming software and its driver dedicated for TC-320 before your initial use.
2) Connect the USB port of PC with the Mini USB jack of the radio using a programming cable.
3) Turn on the radio.
4) Launch the programming software to perform reading or writing operation.
Note:
1) When reading/writing data is in progress, red/green LED glows; when reading/writing data is
completed, red/green LED goes out.
2) During the operation, if any abnormal situation occurs or no reply is given within a period, the
reading/writing operation will fail and an error message window will pop up.
Wired Clone Mode
1. Description
Wired Clone Mode is an independent mode. To access other modes, you must restart the radio.
Wired Clone Mode covers User Clone Mode and Factory Clone Mode.
1) User Clone Mode:
Connect two radios using a clone cable. Power on the source radio while holding down SK, and it
will enter User Clone Mode after 2 seconds. The target radio can be directly turned on to enter user
mode. In this mode, data stored in EEPROM of the source radio will be cloned to EEPROM of the
target radio. The data transferred only involves channel data and common parameters, excluding
adjustment data, version and serial No. of the model.
2) Factory Clone Mode:
Connect two radios using a clone cable. Power on the source radio while holding down SK, and it
will enter User Clone Mode by default after 2 seconds. Press SK afterwards to switch to Factory
Clone Mode. The target radio can be directly turned on to enter the mode. The data transferred
covers all data in EEPROM other than serial No, with flag of manual adjustment switch included.
2. Process
Process of Wired Clone:
1) The LED flashes red once after the source radio enters Wired Clone Mode. Hold down PTT to clone
data to the target radio.
TC-320 Service Manual
7
2) During communication, LED of the source radio glows red, and LED of the target radio glows green.
When communication finishes, LED of the source radio glows green and LED of the target radio goes
out, indicating that both radios are ready for another cloning operation.
3) If any abnormal situation occurs during cloning, the source radio will stop cloning and its LED will flash
orange, indicating both radios are ready for another cloning operation.
4) When the communication ends, the source radio goes back to standby status. Hold down PTT again
to begin another cloning.
Manual Adjust Mode
Hold down PTT and SK on the radio while powering it on, and the radio enters Manual Adjust Mode.
(Note: This operation is subject to the option Panel Test Mode in the programming software. When this
option is unchecked, the radio will be unable to enter the adjustment mode. It helps avoid change of
parameters and degradation of radio performance caused by user’s misoperations. )
Keep this option unchecked after values are well adjusted from factory, to avoid any unexpected change
of values. The adjustment values can be reset and changed in Factory Mode only.
Description of adjustment:
1) To enter Manual Adjust Mode
Hold down PTT and SK for 2 seconds while powering on the radio. The LED will glow orange when the
radio is in Adjust Mode. When the keys are released, the radio will enter item N of TX group (N depends
on the position where the Channel Selector knob locates).
2) To switch between TX group and RX group
This operation is done through the Channel Selector knob.
The LED glows red when adjusting items in TX group.
The LED glows green when adjusting items in RX group.
3) To switch between items of TX group/RX group
This operation is done through the Channel Selector knob.
TX group: CH1 to CH9 stand for TX Low Power, TX High Power, CDCSS Balance, CDCSS Deviation,
CTCSS Deviation (low), CTCSS Deviation (medium), CTCSS Deviation (high), TX Low Voltage
Threshold and Max. Deviation of TX Audio respectively.
The LED solidly glows red when adjusting items CH1 to CH9.
RX group: CH10 to CH12 stand for SQL On 5, SQL Off 5, and RX Low Voltage Threshold respectively.
TC-320 Service Manual
8
The LED solidly glows green when adjusting items CH10 to CH12.
CH13 to CH16 are invalid and the LED goes out, indicating that no adjustment item is carried out.
4) To switch between wide and narrow bandwidth
In adjusting a certain item, short press SK (the LED flashes orange to indicate valid press) to switch
between wide and narrow bandwidth. After this operation, the first frequency of the current bandwidth is
the frequency for adjustment by default.
5) To switch frequency
Short press PTT (the LED flashes green to indicate valid press) to switch frequency one by one, under
certain bandwidth and adjustment item.
6) To increase/decrease adjustment value under certain bandwidth and adjustment item
Short press [+] under certain bandwidth and adjustment item, and the adjustment value will increase in
steps of 1; hold down [+], and the adjustment value will keep increasing in steps of 1. The adjustment
value will remain unchanged once it reaches the allowed maximum value.
Short press [-] under certain bandwidth and adjustment item, and the adjustment value will decrease in
steps of 1; hold down [-], and the adjustment value will keep decreasing in steps of 1. The adjustment
value will remain unchanged once it reaches the allowed minimum value.
7) Operations on special items:
TX group: CH8 is the TX Low Voltage Threshold. This adjustment item is related to AD sampling. Press
[+] or [-] after entering the above item, to activate AD sampling (including calculation) once. Rotate the
Channel Selector knob to save the current AD sampling value.
RX group: CH10 to CH12 stand for SQL On 5, SQL Off 5, and RX Low Voltage Threshold respectively.
These adjustment items are related to AD sampling. Press [+] or [-] after entering the above items, to
activate AD sampling (including calculation) once. Rotate the Channel Selector knob to save the
current AD sampling value.
8) Description of key press:
Short press: key press no longer than 1 second;
Long press: key press time longer than 1 second.
TC-320 Service Manual
9
Circuit Description 1. General Diagram
The general circuit is composed of TX section, RX section, power supply circuit, control circuit and etc.
The block diagram is shown in the figure below:
QT_MOD
SW
U605
D504
VOX
D505
C522
Q105
Q406
LO
Q104
Q611
LO
VR601
AT41511
Q503
R204
MOD
CHARG
BUSY
QT_OUT
R602
RF AMP
SAVE
AMP
Q103D105
RESET
R603
Q505
U101
VCO_IN
MIX
CD501
MB15E03SL
VCC
CF501
XF501
SW602SW PB
1
2
D503
R632
B302
Speaker
+1
-2
D502
SW604SW PB
1
2
VCO_IN
W401ANTENNA1
B201MIC
+1 -2
SW605SW PB1
2
UP
Q102
DOW
TX/RX SW
APC Q506RFC
AF_OUT
QT_OUT
X601
Q502Q501
R103
CKSTB/
TX_CTL
V1
C132
DATA/
V2
Q602
MOD_OUT
U601
D602
LED
1 2
D603
LED
1 2
SW606
R633
U301U604
BUSY(SQL)
LD(SIG OUT)
BAT
RFC
G601BATTERY
12
SWAF501
SWAF502
D60412
LPFRF AMP
D102
APC
V_SAVE
12
RF AMP
D103
D101
PRE AMP
Q601
CP
VR
SWAF503
MIC IN
XT101
SW603SW PB
1
2
CHARG
CHARG
J202
AF(DEMOD)
1 212
SW
LOOP FILTER
R515C553
IF AMP
J201
U603
NFIL IN
SW
SCL
SDA
VT
12
SW
TX OUT
U401
1 2
MON
PTT
SW
EC1
T_LED
R_LED
EC0
EC3EC2
MON
DC-DC
PTT
SW601SW PB
1
2POWER
EEPROM
TXD
RXD
APA_EN
Q401
U602
Q402
VCO
AF
CP
Q403
C204
RIPPLE FILTER
MOD
D617
D616
NFIL OUT
MC3361P
U608
TX_OUT
21.25M OSCIN
QT_OUT
VCC
Q604
Q607
21.7M
Q608
VDD
D612
Q605
D401
D501
POWER
Figure 1
TX Section: The audio signal from MIC is sent to the MCU chip (U601) directly. The baseband signal
processing circuit in U601 converts the amplified audio signal to digital signal via A/D conversion, and
then converts the digital signal to modulation signal via D/A conversion after all processing procedures
such as filtering, signal compression, encryption, pre-emphasis, TX gain control and amplitude limiting
are completed. Then the modulation signal from MCU passes through the low-pass filter circuit and goes
to VCO for direct frequency modulation.
The modulated HF carrier signal passes through the buffer amplifiers (Q104 and Q406), and goes to the
amplifier (Q401) through the RF switching diode (D616). Then the amplified RF signal enters the
low-pass filter circuit through the switching diode (D401) after it is further amplified by the driver (Q402)
and final-stage power amplifier (Q403), and then it will be finally transmitted via antenna after high-order
harmonics are removed. The RX-TX switch circuit is composed of D401 and D501.
TC-320 Service Manual
10
RX Section: RF signal received via the antenna is fed to the bandpass filter (composed of SAWF501
and SAWF502) to filter out unwanted out-of-band interference signal, and then amplified by LNA Q503.
The amplified signal is then fed to the bandpass filter (SAWF503) to further filter out unwanted
out-of-band interference signal. The desired RF signal is mixed with the first local oscillator signal
(output from VCO) by Q505. The newly generated signal is processed by the crystal filter (XF501) to get
the first IF signal (21.7MHz). After amplified by Q506, this IF signal enters U608 to be further mixed with
the second LO (local oscillator) signal and to generate the second IF signal (450 KHz). This second IF
signal is demodulated by U608 to output audio signal, which is sent to MCU for A/D conversion and
filtering. Afterwards, the audio signal is divided into two flows. One flow is processed by CTCSS/CDCSS
decoder; the other is restored to audio signal through filtering, de-emphasis, decoding, signal expansion
and D/A conversion. Then the restored audio signal is amplified by the audio power amplifier (U301) to
drive the speaker directly.
Power Supply Section: The 3.8V battery voltage is converted to two flows of 3.0V DC voltage by the
LDO module (U602), that is, VCC and V_SAVE. VCC powers CPU while V_SAVE controls VT and VR.
VT goes through Q604 and Q601, and outputs 3V voltage for TX circuit under the control of TX-CTRL;
VR supplies 3V voltage for RX circuit under the control of Q604 and Q602. VDD (3V) supplies the PLL
U101 and XT101.
2. Realization Methods of Basic Functional Modules
2.1 PLL Frequency Synthesizer
The PLL circuit mainly provides the local oscillator signal for RX and RF carrier signal for TX. It is
composed of VCO and PLL processor, allowing frequency tracking and channel switching under the
control of MCU signals.
1) PLL
TC-320 Service Manual
11
Figure 2
The PLL circuit generates RF carrier signal for TX and the first local oscillator signal for RX.
PLL: Step frequency of the PLL circuit is 6.25 KHz, 10.0 KHz or 12.5 KHz. In U101, the 21.25MHz
reference oscillator signal is divided into 6.25 KHz, 10.0 KHz or 12.5 KHz reference frequencies via a
fixed counter in PLL. Processed by the buffer amplifier, the signal output from the VCO (TX/RX VCO)
enters PLL. The amplified signal is further processed in PLL by the variable frequency-divider. Then the
signal is compared with the reference frequency in the phase detector (PD) of PLL. The signal from the
PD passes through a low-pass filter, and then is sent to the varactors (D101 and D102) of VCO so as to
control output frequency. Then the RF signal is processed by the buffer amplifiers (Q104 and Q406),
and controlled by D616 and D617 to only serve as RF signal or RX first local oscillator signal.
2) VCO
VCO section is realized by the oscillator circuit of three-point capacitance. TX VCO and RX VCO share
the same oscillator circuit. In TX mode, Q103 is cut off and C130 gets invalid; in RX mode, Q103 is
turned on and C130 gets valid.
Note: If the PLL is unlocked, the LD pin of U101 outputs low level. If the microprocessor detects such
situation, TX/RX operation is prohibited, and an alarm sounds.
2.2 RF Power Amplifier Circuit (TX Section)
The block diagram of the RF power amplifier circuit is shown as below:
TC-320 Service Manual
12
W402ANTENNA1
V_BATR421R420R419
VT
Q405
LPFRF AMP
APC
RF AMPPRE AMP
APCSW SW
Q404
TX OUT
U401
Q401 Q402 Q403
Figure 3
The modulated carrier signal from VCO is pre-amplified by Q104 and Q406, and controlled at D617 and
D616. Then it is processed by the front-stage amplifier Q401, the pre-driver amplifier Q402 and the
final-stage amplifier Q403 respectively. Afterwards, the amplified RF signal enters the low-pass filter
(LPF) circuit through diode D401, and then is transmitted via the antenna after ultroharmonics are
removed.
APC circuit is composed of Q404, Q405 and U401. U401 controls the bias voltage at the gates of Q402
and Q403, to control TX current and to further regulate power.
2.3 RX LNA and Mixer Circuit (RX Section)
The block diagram of the RX circuit is shown as below:
Figure 4
TC-320 Service Manual
13
Desired and undesired RF signals received via the antenna are fed to the bandpass filter (composed of
SAWF501 and SAWF502) to filter out undesired out-of-band interference signal. Then the desired RF
signal is amplified by LNA Q503, and goes through the bandpass filter ( to filter out undesired
out-of-band interference signal. The desired RF signal is mixed with the first local oscillator signal
(output from VCO) by Q505. The newly generated signal is processed by the crystal filter (XF501) to get
the first IF signal (21.7MHz).
After amplified by Q506, this IF signal enters U608 to be further mixed with the second LO (local
oscillator) signal and to generate the second IF signal (450 KHz). Then the second IF signal is
demodulated by U608 to output audio signal, which is sent to MCU for A/D conversion and filtering.
Afterwards, the audio signal is divided into two flows. One flow is processed by CTCSS/CDCSS decoder;
the other is restored to audio signal through filtering, de-emphasis, decoding, signal expansion and D/A
conversion. Then the restored audio signal is amplified by the audio power amplifier (U301) to drive the
speaker directly.
2.4 MCU Control, Signal Processing and Audio Power Amplification
The block diagram of this section is shown as below:
R602
AMP
R603
SAVE
RESET
Q605
SW1
2 ON/OFF
Q607
UPDOW
AF OUT
RFC
APCQT_OUT
X601
TX_CTL
Q602
VOX
U601
D601
LED1 2
D602
LED
1 2
SW606
VDD
U301
V_BAT
BUSY(SQL)
BAT
G601BATTERY
12
RESET
SP
VCC
V_SAVE
Q201
Q202
Q601
VT
U605
VR
POWER
TXD/RXD
Q604
J201
LD
U603
DATA
SDA
CK
SCL
STBDEMOD
SW
T_LED
R_LEDEC0 EC1
SW
EC2 EC3
PTT
DC-DC
MON
EEPROM
U602
APA ENMIC MOD OUTR/T
Figure 5
TC-320 Service Manual
14
2.4.1 MCU Control Circuit
MCU control circuit is composed of MCU, EEPROM, keys and etc. This section has the following
functions: to initialize data of the radio and save data to EEPROM; to detect battery voltage and signals
from external keys, LD and VOX, and to make response; to transmit required data to PLL based on the
channel encoding status; to switch and control RX/TX based on the input PTT signal; to switch the
squelch circuit on/off based on the input signaling decode signal and squelch level signal; to control
circuits of high/low power switch, audio power amplifier, VCO power supply, RX power supply and TX
power supply; (for programming) to communicate with PC via RXD/TXD based on the RS232 protocol,
and transmit/receive data to/from PC.
2.4.2 Signal Processing Section
a. TX Baseband Processing The audio signals input from MIC are divided into two flows. One flow
serves as the signal of VOX detection by Q508 and D612; the other enters U601, and then is converted
into digital signal by analog-to-digital conversion (ADC). Afterwards, the digital signal will go through a
series of processing including low-pass filtering, AGC, companding, high-pass filtering, encrypting and
pre-emphasizing. Finally, the signal is processed by the active low-pass filter and then sent to VCO for
modulation after it is converted by digital-to-analog conversion (DAC).
b. RX Baseband Processing
After entering U601, the DEMOD signal derived from IF demodulation is converted to digital signal via
analog-to-digital conversion (ADC), and then is sent to the digital low-pass filter. The signal is divided
into two flows. One flow is processed by CTCSS/CDCSS decoder; the other is processed by high-pass
filter, and then is subject to processing procedures such as de-emphasis, decryption, and signal
expansion, and finally is output as audio signal after digital-to-analog conversion.
2.4.3 Audio Power Amplifier
The audio signal output from U601 is amplified by the audio power amplifier (U301) to drive the speaker
directly.
2.5 Power Supply Processing
The block diagram of the power supply circuit is shown as below:
TC-320 Service Manual
15
Q605
SAVE
Q607
Q602
TX_CTL
VDD
G602BATTERY
12 VCC
V_SAVE
Q601
VR
VT
Q604
POWER
DC-DC
SW
SWU602
Figure 6
Power Supply Section: The 3.8V battery voltage is converted to two flows of 3.0V DC voltage by the
LDO module (U602), that is, VCC and V_SAVE. VCC powers CPU while V_SAVE controls VT and VR.
VT goes through Q604 and Q601, and outputs 3V voltage for TX circuit under the control of TX-CTRL;
VR supplies 3V voltage for RX circuit under the control of Q604 and Q602. VDD (3V) supplies the PLL
U101 and XT101.
TC-320 Service Manual
16
CPU Pins Pin No. Port Name Pin Name I/O Function
1 NC / / /
2 NC / / /
3 NC / / /
4 NC / / /
5 NC / / /
6 TXD TXD O UART TXD
7 RXD RXD I UART RXD
8 P60 APA_EN O To control the speaker; H: unmute, L: mute
9 P61 SAVE_CTL O To control Power Save: it is at high level in non-Power-Save status
10 P62 EXT MIC I To check MIC connection (valid at high level)
11 P63 EXT PTT I PTT key on the earpiece (valid at high level)
12 P64 Red LED O Red LED
13 P65 Green LED O Green LED
14 P66 Reserve O Reserved
15 P67 Reserve O Reserved
16 Vssd GND S Ground power supply for digital circuit
17 Vddd VCC (3.0V) S Power supply for digital circuit
18 P50/INT0 VOL+ I Volume Adjust Key [+]
19 P51/INT1 VOL- I Volume Adjust Key [-]
20 P52/INT2 Reserve O Reserved
21 P53/INT3 /POWER SWITCH
I Power Switch
22 P54/INT4 SK I Programmable function key (side key) (valid at low level), connected with a pull-up resistor
23 P55/INT5 PTT I PTT key (valid at low level), connected with a pull-up resistor
24 P56/INT6 Reserve O Reserved
25 P57/INT7 Reserve O Reserved
26 Vdd_CLD VCC (3.0V) S Power supply for digital PA
27 CLD_OUTP AF_OUT O Audio output
TC-320 Service Manual
17
28 VSS_CLD GND S Ground power supply for digital PA
29 CLD_OUTM Reserve O Reserved
30 Vdd_CLD VCC (3.0V) S Power supply for digital PA
31 P77 RF_CTRL O To control RX frequency band; valid at high level (high frequency band); valid at low level (low frequency band)
32 P76/DAC1 APC DA To control TX power
33 P75/VREF VCC (3.0V) I Input pin of reference voltage of ADC and DAC
34 P74/DAC0 QT_OUT DA CTCSS/CDCSS output
35 P73/AD3 VOX AD VOX energy detection pin
36 Vssa GND S Ground power supply for analog circuit
37 Vdda VCC (3.0V) S Power supply for analog circuit
38 P72/AD2 Reserve AD Reserved
39 P71/AD1 SQL AD To detect noise
40 P70/AD0 BAT_DET AD To detect battery strength
41 XTAL0 OSC0 /
42 XTAL1 OSC1 / To connect 32.678KHz main crystal oscillator
43 PLL_CAP PLL_CAP / To connect the external capacitor (10nF) of PLL
44 NC / / /
45 NC / / /
46 NC / / /
47 NC / / /
48 NC / / /
49 P03/COM3 Reserve O Reserved
50 P02/COM2 Reserve O Reserved
51 P01/COM1 Reserve O Reserved
52 P00/COM0 Reserve O Reserved
53 P10/SEG0 Reserve O Reserved
54 P11/SEG1 Reserve O Reserved
55 P12/SEG2 Reserve O Reserved
56 P13/SEG3 Reserve O Reserved
57 P14/SEG4 Reserve O Reserved
TC-320 Service Manual
18
58 P15/SEG5 Reserve O Reserved
59 P16/SEG6 Reserve O Reserved
60 P17/SEG7 Reserve O Reserved
61 P20/SEG8 EN0 I
62 P21/SEG9 EN1 I
63 P22/SEG10 EN2 I
64 P23/SEG11 EN3 I
To detect input from the encoder switch
65 P24/SEG12 Reserve O Reserved
66 P25SEG13 Reserve O Reserved
67 P26/SEG14 Reserve O Reserved
68 P27/SEG15 Reserve O Reserved
69 P30/SEG16 Reserve O Reserved
70 P31/SEG17 Reserve O Reserved
71 NC / / /
72 NC / / /
73 NC / / /
74 NC / / /
75 NC / / /
76 P32/SEG18 Reserve O Reserved
77 P33/SEG19 Reserve O Reserved
78 P34/SEG20 Reserve O Reserved
79 P35/SEG21 Reserve O Reserved
80 P36/SEG22 Reserve O Reserved
81 P37/SEG23 POWER O Power control pin
82 P40/SEG24 Reserve O Reserved
83 P41/SEG25 SCL O EEPROM CLOCK, connected with a pull-up resistor
84 P42/SEG26 SDA O EEPROM DATA, connected with a pull-up resistor
85 P43/SEG27 LD I To detect PLL circuit unlock (H: lock; L: unlock), connected with a pull-up resistor
86 P44/SEG28 DATA O PLL DATA
87 P45/SEG29 CK O PLL CLOCK
TC-320 Service Manual
19
88 P46/SEG30 STB O PLL ENABLE
89 Vssd GND S Ground power supply for digital circuit
90 Vddd VCC (3.0V) S Power supply for digital circuit
91 SW_P0 R/T O To control RX/TX, H: RX; L: TX (switch to VCO)
92 SW_P1 TX_CTRL O To control power supply for TX (transmit at high level)
93 RESET RESET I Reset input
94 Vssa GND S Ground power supply for analog circuit
95 Vdda VCC (3.0V) S Power supply for analog circuit
96 BG_REF O Reference voltage output pin
97 MIC_IN MIC_IN I Microphone input pin
98 DEMODE DEMODE I Baseband signal (audio and CTCSS/CDCSS) input pin
99 MODOUT MODOUT O Baseband signal (audio and CTCSS/CDCSS) output pin
100 NC / / /
Requirement: As the port of Reserved is set to O, its configuration should be Output and Open.
TC-320 Service Manual
20
Parts List 1 No. Part No. Description Qty. Ref No. Print No. Remark1 3001050000000 Chip resistor 0Ω J 1/16W (RoHS) 1 L510 B2H
2 3001050000000 Chip resistor 0Ω J 1/16W (RoHS) 1 R223 T3G
3 3001050000000 Chip resistor 0Ω J 1/16W (RoHS) 1 R518 B3H
4 3001050000000 Chip resistor 0Ω J 1/16W (RoHS) 1 R527 B2H
5 3001051000020 Chip resistor 10Ω F 1/16W (RoHS) 1 R101 B4H
6 3001051000020 Chip resistor 10Ω F 1/16W (RoHS) 1 R108 B4G
7 3001051000020 Chip resistor 10Ω F 1/16W (RoHS) 1 R119 B3F
8 3001051000020 Chip resistor 10Ω F 1/16W (RoHS) 1 R311 T3A
9 3001051000020 Chip resistor 10Ω F 1/16W (RoHS) 1 R429 B2F
10 3001051000020 Chip resistor 10Ω F 1/16W (RoHS) 1 R516 B3I
11 3001051000020 Chip resistor 10Ω F 1/16W (RoHS) 1 R530 B2G
12 3001051010040 Chip resistor 100Ω F 1/16W (RoHS) 1 R604 T2E
13 3001051010040 Chip resistor 100Ω F 1/16W (RoHS) 1 R614 T4E
14 3001051010040 Chip resistor 100Ω F 1/16W (RoHS) 1 R621 T4E
15 3001051010040 Chip resistor 100Ω F 1/16W (RoHS) 1 R623 T4E
16 3001051020000 Chip resistor 1KΩ F 1/16W (RoHS) 1 R104 B4F
17 3001051020000 Chip resistor 1KΩ F 1/16W (RoHS) 1 R109 B4E
18 3001051020000 Chip resistor 1KΩ F 1/16W (RoHS) 1 R207 T2G
19 3001051020000 Chip resistor 1KΩ F 1/16W (RoHS) 1 R214 T3D
20 3001051020000 Chip resistor 1KΩ F 1/16W (RoHS) 1 R309 T4D
21 3001051020000 Chip resistor 1KΩ F 1/16W (RoHS) 1 R613 T2G
22 3001051020000 Chip resistor 1KΩ F 1/16W (RoHS) 1 R637 T5F
23 3001051020000 Chip resistor 1KΩ F 1/16W (RoHS) 1 R640 T4E U1
24 3001055610000 Chip resistor 560Ω J 1/16W(RoHS) 1 R640 T4E U2
25 3001051020000 Chip resistor 1KΩ F 1/16W (RoHS) 1 R645 T5D
26 3001051030000 Chip resistor 10KΩ J 1/16W (RoHS) 1 R107 B4E
27 3001051030000 Chip resistor 10KΩ J 1/16W (RoHS) 1 R116 B3E
28 3001051030000 Chip resistor 10KΩ J 1/16W (RoHS) 1 R219 T2D
29 3001051030000 Chip resistor 10KΩ J 1/16W (RoHS) 1 R301 T3A
30 3001051030000 Chip resistor 10KΩ J 1/16W (RoHS) 1 R409 T2B
31 3001051030000 Chip resistor 10KΩ J 1/16W (RoHS) 1 R413 B2F
32 3001051030000 Chip resistor 10KΩ J 1/16W (RoHS) 1 R428 T2B
33 3001051040000 Chip resistor 100KΩ F 1/16W (RoHS) 1 R113 B3E
34 3001051040000 Chip resistor 100KΩ F 1/16W (RoHS) 1 R120 B3F
35 3001051040000 Chip resistor 100KΩ F 1/16W (RoHS) 1 R213 T3D
36 3001051040000 Chip resistor 100KΩ F 1/16W (RoHS) 1 R424 T3B
37 3001051040000 Chip resistor 100KΩ F 1/16W (RoHS) 1 R427 T2A
38 3001051040000 Chip resistor 100KΩ F 1/16W (RoHS) 1 R433 B2G
39 3001051040000 Chip resistor 100KΩ F 1/16W (RoHS) 1 R504 T3H
40 3001051050000 Chip resistor 1MΩ F 1/16W (RoHS) 1 R218 T2D
41 3001051050000 Chip resistor 1MΩ F 1/16W (RoHS) 1 R405 T2B
42 3001051230000 Chip resistor 12KΩ J 1/16W (RoHS) 1 R224 T3G
TC-320 Service Manual
21
No. Part No. Description Qty. Ref No. Print No. Remark43 3001051230000 Chip resistor 12KΩ J 1/16W (RoHS) 1 R528 B2G
44 3001051530000 Chip resistor 15KΩ J 1/16W (RoHS) 1 R406 T2A
45 3001051530000 Chip resistor 15KΩ J 1/16W (RoHS) 1 R607 T3G
46 3001051540000 Chip resistor 150KΩ F 1/16W (RoHS) 1 R422 T3A
47 3001051540000 Chip resistor 150KΩ F 1/16W (RoHS) 1 R423 T3B
48 3001051540000 Chip resistor 150KΩ F 1/16W (RoHS) 1 R425 T3B
49 3001051540000 Chip resistor 150KΩ F 1/16W (RoHS) 1 R426 T3A
50 3001052220000 Chip resistor 2.2KΩ J 1/16W (RoHS) 1 R110 B4E
51 3001052220000 Chip resistor 2.2KΩ J 1/16W (RoHS) 1 R202 T2D
52 3001052220000 Chip resistor 2.2KΩ J 1/16W (RoHS) 1 R216 T3D
53 3001052220000 Chip resistor 2.2KΩ J 1/16W (RoHS) 1 R507 B3H
54 3001052220000 Chip resistor 2.2KΩ J 1/16W (RoHS) 1 R508 T3H
55 3001052220000 Chip resistor 2.2KΩ J 1/16W (RoHS) 1 R615 T3H
56 3001052220000 Chip resistor 2.2KΩ J 1/16W (RoHS) 1 R641 T5D U1
57 3001052020020 Chip resistor 2KΩ F 1/16W (RoHS) 1 R641 T5D U2
58 3001052230010 Chip resistor 22KΩ J 1/16W (RoHS) 1 R103 B4G U1
59 3001051530000 Chip resistor 15KΩ J 1/16W (RoHS) 1 R103 B4G U2
60 3001052230010 Chip resistor 22KΩ J 1/16W (RoHS) 1 R215 T3D
61 3001052240010 Chip resistor 220KΩ F 1/16W (RoHS) 1 R602 T2E
62 3001052240010 Chip resistor 220KΩ F 1/16W (RoHS) 1 R603 T2E
63 3001052710010 Chip resistor 270Ω J 1/16W (RoHS) 1 R115 B3E
64 3001052710010 Chip resistor 270Ω J 1/16W (RoHS) 1 R505 B2I
65 3001052710010 Chip resistor 270Ω J 1/16W (RoHS) 1 R506 B3H
66 3001052730010 Chip resistor 27KΩ F 1/16W (RoHS) 1 R121 T4F
67 3001052730010 Chip resistor 27KΩ F 1/16W (RoHS) 1 R408 T2A
68 3001053310010 Chip resistor 330Ω J 1/16W (RoHS) 1 R404 B2E
69 3001053320000 Chip resistor 3.3KΩ J 1/16W (RoHS) 1 R203 T4E
70 3001053320000 Chip resistor 3.3KΩ J 1/16W (RoHS) 1 R204 T4E
71 3001053320000 Chip resistor 3.3KΩ J 1/16W (RoHS) 1 R401 B2F
72 3001053320000 Chip resistor 3.3KΩ J 1/16W (RoHS) 1 R402 B2E
73 3001053320000 Chip resistor 3.3KΩ J 1/16W (RoHS) 1 R534 B4H U1
74 3001055620000 Chip resistor 5.6KΩ J 1/16W (RoHS) 1 R534 B4H U2
75 3001053320000 Chip resistor 3.3KΩ J 1/16W (RoHS) 1 R536 B4H U1
76 3001055620000 Chip resistor 5.6KΩ J 1/16W (RoHS) 1 R536 B4H U2
77 3001053920010 Chip resistor 3.9KΩ J 1/16W (RoHS) 1 R431 B3F
78 3001058220000 Chip resistor 8.2KΩ J 1/16W (RoHS) 1 R606 T4C
79 3001053920010 Chip resistor 3.9KΩ J 1/16W (RoHS) 1 R633 T3G
80 3001054790000 Chip resistor 4.7Ω J 1/16W (RoHS) 1 R308 T3A
81 3001054790000 Chip resistor 4.7Ω J 1/16W (RoHS) 1 R310 T3A
82 3001054790000 Chip resistor 4.7Ω J 1/16W (RoHS) 1 R403 B2E
83 3001054700000 Chip resistor 47Ω J 1/16W (RoHS) 1 R111 B4E
84 3001054700000 Chip resistor 47Ω J 1/16W (RoHS) 1 R123 B3F
85 3001054700000 Chip resistor 47Ω J 1/16W (RoHS) 1 R618 T4G
86 3001054700000 Chip resistor 47Ω J 1/16W (RoHS) 1 R619 T3G
TC-320 Service Manual
22
No. Part No. Description Qty. Ref No. Print No. Remark87 3001054710000 Chip resistor 470Ω J 1/16W (RoHS) 1 R201 T2D
88 3001054710000 Chip resistor 470Ω J 1/16W (RoHS) 1 R503 T3H
89 3001054720000 Chip resistor 4.7KΩ J 1/16W (RoHS) 1 R112 B3E
90 3001054720000 Chip resistor 4.7KΩ J 1/16W (RoHS) 1 R206 T3G
91 3001054720000 Chip resistor 4.7KΩ J 1/16W (RoHS) 1 R434 B2F
92 3001054720000 Chip resistor 4.7KΩ J 1/16W (RoHS) 1 R511 B2H
93 3001054720000 Chip resistor 4.7KΩ J 1/16W (RoHS) 1 R512 B1E
94 3001054720000 Chip resistor 4.7KΩ J 1/16W (RoHS) 1 R525 B2G
95 3001054720000 Chip resistor 4.7KΩ J 1/16W (RoHS) 1 R608 T4C
96 3001054720000 Chip resistor 4.7KΩ J 1/16W (RoHS) 1 R622 T5C
97 3001054730000 Chip resistor 47KΩ J 1/16W (RoHS) 1 R106 B3E
98 3001054730000 Chip resistor 47KΩ J 1/16W (RoHS) 1 R205 T4D
99 3001054730000 Chip resistor 47KΩ J 1/16W (RoHS) 1 R217 T3D
100 3001054730000 Chip resistor 47KΩ J 1/16W (RoHS) 1 R610 T4B
101 3001054730000 Chip resistor 47KΩ J 1/16W (RoHS) 1 R611 T4B
102 3001054730000 Chip resistor 47KΩ J 1/16W (RoHS) 1 R612 T4B
103 3001054730000 Chip resistor 47KΩ J 1/16W (RoHS) 1 R616 T4G
104 3001054730000 Chip resistor 47KΩ J 1/16W (RoHS) 1 R617 T4G
105 3001054730000 Chip resistor 47KΩ J 1/16W (RoHS) 1 R620 T4B
106 3001054730000 Chip resistor 47KΩ J 1/16W (RoHS) 1 R624 T4E
107 3001054730000 Chip resistor 47KΩ J 1/16W (RoHS) 1 R630 T2G
108 3001054730000 Chip resistor 47KΩ J 1/16W (RoHS) 1 R631 T3H
109 3001054730000 Chip resistor 47KΩ J 1/16W (RoHS) 1 R638 T4E
110 3001054730000 Chip resistor 47KΩ J 1/16W (RoHS) 1 R643 T5G
111 3001054740000 Chip resistor 470KΩ J 1/16W (RoHS) 1 R517 B3H
112 3001054740000 Chip resistor 470KΩ J 1/16W (RoHS) 1 R519 B4H
113 3001056830000 Chip resistor 68KΩ J 1/16W (RoHS) 1 R102 B4H
114 3001056830000 Chip resistor 68KΩ J 1/16W (RoHS) 1 R124 B4F
115 3001056830000 Chip resistor 68KΩ J 1/16W (RoHS) 1 R127 B3F
116 3001056830000 Chip resistor 68KΩ J 1/16W (RoHS) 1 R302 T3A
117 3001056830000 Chip resistor 68KΩ J 1/16W (RoHS) 1 R632 T3G U1
118 3001058230000 Chip resistor 82KΩ J 1/16W (RoHS) 1 R632 T3G U2
119 3001056830000 Chip resistor 68KΩ J 1/16W (RoHS) 1 R642 T4D
120 3001056840000 Chip resistor 680KΩ J 1/16W (RoHS) 1 R501 B3H
121 3001057520000 Chip resistor 7.5KΩ J 1/16W (RoHS) 1 R118 B3E U1
122 3001051030000 Chip resistor 10KΩ J 1/16W (RoHS) 1 R118 B3E U2
123 3001060000000 Chip resistor 0Ω J 1/10W (RoHS) 1 L105 B3F
124 3001060000000 Chip resistor 0Ω J 1/10W (RoHS) 1 L115 B2H
125 3001061010000 Chip resistor 100Ω J 1/10W (RoHS) 1 R418 T2B
126 3001061010000 Chip resistor 100Ω J 1/10W (RoHS) 1 R605 T3A
127 3001066820000 Chip resistor 6.8KΩ J 1/10W (RoHS) 1 R416 B2D
128 3001061020010 Chip resistor 1KΩ J 1/10W (RoHS) 1 R416 B2D
129 3001064700000 Chip resistor 47Ω J 1/10W (RoHS) 1 R410 B2D
130 3001064700000 Chip resistor 47Ω J 1/10W (RoHS) 1 R415 B3C
TC-320 Service Manual
23
No. Part No. Description Qty. Ref No. Print No. Remark131 3001066810010 Chip resistor 680Ω J 1/10W (RoHS) 1 R625 T4A
132 3099080398000 Chip resistor 0.39Ω J 1/4W (RoHS) 1 R419 T3B
133 3099080398000 Chip resistor 0.39Ω J 1/4W (RoHS) 1 R420 T3B
134 3099080398000 Chip resistor 0.39Ω J 1/4W (RoHS) 1 R421 T3B
135 3005051020010 Integrated resistor 1K J 1/16W (RoHS) 1 RN101 T4F
136 3101050590010 Chip capacitor 0.5PF B 50V (RoHS) 1 C109 B3E
137 3101050590010 Chip capacitor 0.5PF B 50V (RoHS) 1 C144 B3F
138 3101051590000 Chip capacitor 1.5PF B 50V (RoHS) 1 C431 B3A
139 3101050200010 Chip capacitor 2PF B 50V (RoHS) 1 C401 B2F U1
140 3101050500010 Chip capacitor 5PF B 50V (RoHS) 1 C401 B2F U2
141 3101050200010 Chip capacitor 2PF B 50V (RoHS) 1 C428 B3A
142 3101050200010 Chip capacitor 2PF B 50V (RoHS) 1 C433 B3A
143 3101050200010 Chip capacitor 2PF B 50V (RoHS) 1 C449 B3G
144 3101050200010 Chip capacitor 2PF B 50V (RoHS) 1 C502 B2B
145 3199052290000 Chip capacitor 2.2PF B 50V (RoHS) 1 C110 B3E U1
146 3101050200010 Chip capacitor 2PF B 50V (RoHS) 1 C110 B3E U2
147 3101050300000 Chip capacitor 3PF B 50V (RoHS) 1 C130 B3E U1
148 3101052790000 Chip capacitor 2.7PF C 50V (RoHS) 1 C130 B3E U2
149 3101050300000 Chip capacitor 3PF B 50V (RoHS) 1 C501 B2B
150 3101053690000 Chip capacitor 3.6PF B 50V (RoHS) 1 C432 B3A U1
151 3101052490010 Chip capacitor 2.4PF B 50V (RoHS) 1 C432 B3A U2
152 3199054790000 Chip capacitor 4.7PF C 50V (RoHS) 1 C430 B3A U1
153 3101054790040 Chip capacitor 4.7PF B 50V (RoHS) 1 C430 B3A U2
154 3101050600010 Chip capacitor 6PF B 50V (RoHS) 1 C148 B3E U1
155 3101055690080 Chip capacitor 5.6PF C 50V (RoHS) 1 C148 B3E U2
156 3101050600010 Chip capacitor 6PF B 50V (RoHS) 1 C453 B2F U1
157 3101052200010 Chip capacitor 22PF J 50V (RoHS) 1 C453 B2F U2
158 3101050900000 Chip capacitor 9PF B 50V (RoHS) 1 C112 B3F U1
159 3101050800000 Chip capacitor 8PF B 50V (RoHS) 1 C112 B3F U2
160 3101051000020 Chip capacitor 10PF J 50V (RoHS) 1 C103 B5G
161 3101051000020 Chip capacitor 10PF J 50V (RoHS) 1 C104 B4G
162 3101051000020 Chip capacitor 10PF J 50V (RoHS) 1 C107 B3E
163 3101051000020 Chip capacitor 10PF J 50V (RoHS) 1 C118 B4G
164 3101051000020 Chip capacitor 10PF J 50V (RoHS) 1 C151 B3F
165 3101051000020 Chip capacitor 10PF J 50V (RoHS) 1 C414 B4F
166 3101051000020 Chip capacitor 10PF J 50V (RoHS) 1 C439 B2F
167 3101051000020 Chip capacitor 10PF J 50V (RoHS) 1 C448 B3G
168 3101051000020 Chip capacitor 10PF J 50V (RoHS) 1 C452 B3G
169 3101051000020 Chip capacitor 10PF J 50V (RoHS) 1 C530 T2H U1
170 3101051500020 Chip capacitor 15PF J 50V (RoHS) 1 C530 T2H U2
171 3101051000020 Chip capacitor 10PF J 50V (RoHS) 1 C556 B4G
172 3101054700010 Chip capacitor 47PF J 50V (RoHS) 1 C314 B4D
173 3101054700010 Chip capacitor 47PF J 50V (RoHS) 1 C315 B4H
174 3101054700010 Chip capacitor 47PF J 50V (RoHS) 1 C404 B2E
TC-320 Service Manual
24
No. Part No. Description Qty. Ref No. Print No. Remark175 3101051500020 Chip capacitor 15PF J 50V (RoHS) 1 C421 B3B U1
176 3101051200020 Chip capacitor 12PF J 50V (RoHS) 1 C421 B3B U2
177 3101051500020 Chip capacitor 15PF J 50V (RoHS) 1 C544 B3H U1
178 3101054790040 Chip capacitor 4.7PF B 50V (RoHS) 1 C544 B3H U2
179 3101051500020 Chip capacitor 15PF J 50V (RoHS) 1 C638 T2E
180 3101051500020 Chip capacitor 15PF J 50V (RoHS) 1 C639 T2F
181 3101053300000 Chip capacitor 33PF J 50V (RoHS) 1 C415 B3D U1
182 3101053900000 Chip capacitor 39PF J 50V (RoHS) 1 C415 B3D U2
183 3101053300000 Chip capacitor 33PF J 50V (RoHS) 1 C526 B3H
184 3101051010030 Chip capacitor 100PF J 50V (RoHS) 1 C117 B3F
185 3101051010030 Chip capacitor 100PF J 50V (RoHS) 1 C119 B4F
186 3101051010030 Chip capacitor 100PF J 50V (RoHS) 1 C121 B4F
187 3101051010030 Chip capacitor 100PF J 50V (RoHS) 1 C124 B4F
188 3101051010030 Chip capacitor 100PF J 50V (RoHS) 1 C125 B4F
189 3101051010030 Chip capacitor 100PF J 50V (RoHS) 1 C127 B4G
190 3101051010030 Chip capacitor 100PF J 50V (RoHS) 1 C131 B4E
191 3101051010030 Chip capacitor 100PF J 50V (RoHS) 1 C150 B3F
192 3101051010030 Chip capacitor 100PF J 50V (RoHS) 1 C152 B3F
193 3101051010030 Chip capacitor 100PF J 50V (RoHS) 1 C202 B2E
194 3101051010030 Chip capacitor 100PF J 50V (RoHS) 1 C512 B2B
195 3101051010030 Chip capacitor 100PF J 50V (RoHS) 1 C516 B1E
196 3101051010030 Chip capacitor 100PF J 50V (RoHS) 1 C523 B2H
197 3101051010030 Chip capacitor 100PF J 50V (RoHS) 1 C614 T3G
198 3101051010030 Chip capacitor 100PF J 50V (RoHS) 1 C629 T4E
199 3101054710010 Chip capacitor 470PF K 50V (RoHS) 1 C142 B3E
200 3101054710010 Chip capacitor 470PF K 50V (RoHS) 1 C147 B3F
201 3101054710010 Chip capacitor 470PF K 50V (RoHS) 1 C209 T5D
202 3101054710010 Chip capacitor 470PF K 50V (RoHS) 1 C403 T2B
203 3101054710010 Chip capacitor 470PF K 50V (RoHS) 1 C405 B2E
204 3101054710010 Chip capacitor 470PF K 50V (RoHS) 1 C410 B2F
205 3101054710010 Chip capacitor 470PF K 50V (RoHS) 1 C411 B2F
206 3101054710010 Chip capacitor 470PF K 50V (RoHS) 1 C416 B3D
207 3101054710010 Chip capacitor 470PF K 50V (RoHS) 1 C424 B2D
208 3101054710010 Chip capacitor 470PF K 50V (RoHS) 1 C426 T2B
209 3101054710010 Chip capacitor 470PF K 50V (RoHS) 1 C440 B3B
210 3101054710010 Chip capacitor 470PF K 50V (RoHS) 1 C443 T2B
211 3101054710010 Chip capacitor 470PF K 50V (RoHS) 1 C444 T3B
212 3101054710010 Chip capacitor 470PF K 50V (RoHS) 1 C445 T2A
213 3101054710010 Chip capacitor 470PF K 50V (RoHS) 1 C446 T2B
214 3101054710010 Chip capacitor 470PF K 50V (RoHS) 1 C447 T2B
215 3101054710010 Chip capacitor 470PF K 50V (RoHS) 1 C450 B4G
216 3101054710010 Chip capacitor 470PF K 50V (RoHS) 1 C504 B2G
217 3101054710010 Chip capacitor 470PF K 50V (RoHS) 1 C506 T2G
218 3101054710010 Chip capacitor 470PF K 50V (RoHS) 1 C509 B2G
TC-320 Service Manual
25
No. Part No. Description Qty. Ref No. Print No. Remark219 3101054710010 Chip capacitor 470PF K 50V (RoHS) 1 C522 B4H
220 3101054710010 Chip capacitor 470PF K 50V (RoHS) 1 C524 B2H
221 3101054710010 Chip capacitor 470PF K 50V (RoHS) 1 C553 B4H
222 3101054710010 Chip capacitor 470PF K 50V (RoHS) 1 C562 B3H
223 3101054710010 Chip capacitor 470PF K 50V (RoHS) 1 C601 T3A
224 3101054710010 Chip capacitor 470PF K 50V (RoHS) 1 C611 T3E
225 3101054710010 Chip capacitor 470PF K 50V (RoHS) 1 C622 T4G
226 3101054710010 Chip capacitor 470PF K 50V (RoHS) 1 C623 T4A
227 3101054710010 Chip capacitor 470PF K 50V (RoHS) 1 C624 T4B
228 3101054710010 Chip capacitor 470PF K 50V (RoHS) 1 C625 T4A
229 3101054710010 Chip capacitor 470PF K 50V (RoHS) 1 C626 T4B
230 3101054710010 Chip capacitor 470PF K 50V (RoHS) 1 C631 T2E
231 3101054710010 Chip capacitor 470PF K 50V (RoHS) 1 C632 T2D
232 3101054710010 Chip capacitor 470PF K 50V (RoHS) 1 C633 T2C
233 3101054710010 Chip capacitor 470PF K 50V (RoHS) 1 C636 T2E
234 3101054710010 Chip capacitor 470PF K 50V (RoHS) 1 C641 T1B
235 3101054710010 Chip capacitor 470PF K 50V (RoHS) 1 C644 T2D
236 3101054710010 Chip capacitor 470PF K 50V (RoHS) 1 C657 T4D
237 3101051020010 Chip capacitor 1000PF K 50V (RoHS) 1 C102 B5G
238 3101051020010 Chip capacitor 1000PF K 50V (RoHS) 1 C105 B4E
239 3101051020010 Chip capacitor 1000PF K 50V (RoHS) 1 C111 B4G
240 3101051020010 Chip capacitor 1000PF K 50V (RoHS) 1 C120 B4H
241 3101051020010 Chip capacitor 1000PF K 50V (RoHS) 1 C126 B4H
242 3101051020010 Chip capacitor 1000PF K 50V (RoHS) 1 C133 B2E
243 3101051020010 Chip capacitor 1000PF K 50V (RoHS) 1 C139 B3E
244 3101051020010 Chip capacitor 1000PF K 50V (RoHS) 1 C141 B2E
245 3101051020010 Chip capacitor 1000PF K 50V (RoHS) 1 C145 B3E
246 3101051020010 Chip capacitor 1000PF K 50V (RoHS) 1 C215 B4F
247 3101051020010 Chip capacitor 1000PF K 50V (RoHS) 1 C216 T3D
248 3101051020010 Chip capacitor 1000PF K 50V (RoHS) 1 C219 T3D
249 3101051020010 Chip capacitor 1000PF K 50V (RoHS) 1 C412 B2D
250 3101051020010 Chip capacitor 1000PF K 50V (RoHS) 1 C413 B3D
251 3101051020010 Chip capacitor 1000PF K 50V (RoHS) 1 C417 B2C
252 3101051020010 Chip capacitor 1000PF K 50V (RoHS) 1 C425 B2B
253 3101051020010 Chip capacitor 1000PF K 50V (RoHS) 1 C427 B2B
254 3101051020010 Chip capacitor 1000PF K 50V (RoHS) 1 C518 B4G
255 3101051020010 Chip capacitor 1000PF K 50V (RoHS) 1 C539 B3I
256 3101051020010 Chip capacitor 1000PF K 50V (RoHS) 1 C558 B3H
257 3101051020010 Chip capacitor 1000PF K 50V (RoHS) 1 C563 B2H
258 3101051020010 Chip capacitor 1000PF K 50V (RoHS) 1 C604 B4C
259 3101051020010 Chip capacitor 1000PF K 50V (RoHS) 1 C605 T2E
260 3101051020010 Chip capacitor 1000PF K 50V (RoHS) 1 C608 T4D
261 3101051020010 Chip capacitor 1000PF K 50V (RoHS) 1 C613 T4D
262 3101051020010 Chip capacitor 1000PF K 50V (RoHS) 1 C616 T2G
TC-320 Service Manual
26
No. Part No. Description Qty. Ref No. Print No. Remark263 3101051020010 Chip capacitor 1000PF K 50V (RoHS) 1 C617 T5D
264 3101051020010 Chip capacitor 1000PF K 50V (RoHS) 1 C619 T2H
265 3101051020010 Chip capacitor 1000PF K 50V (RoHS) 1 C620 T2H
266 3101051020010 Chip capacitor 1000PF K 50V (RoHS) 1 C640 T4C
267 3101051020010 Chip capacitor 1000PF K 50V (RoHS) 1 C648 T2G
268 3101051020010 Chip capacitor 1000PF K 50V (RoHS) 1 C651 T4C
269 3101054720000 Chip capacitor 4700PF K 50V (RoHS) 1 C204 T4E
270 3101054720000 Chip capacitor 4700PF K 50V (RoHS) 1 C549 T3H
271 3101054720000 Chip capacitor 4700PF K 50V (RoHS) 1 C554 B4H
272 3101054720000 Chip capacitor 4700PF K 50V (RoHS) 1 C561 B4H
273 3101054720000 Chip capacitor 4700PF K 50V (RoHS) 1 C647 T5E
274 3101051030020 Chip capacitor 0.01UF K 25V (RoHS) 1 C138 B2E
275 3101051030020 Chip capacitor 0.01UF K 25V (RoHS) 1 C437 B3B
276 3101051030020 Chip capacitor 0.01UF K 25V (RoHS) 1 C508 T2G
277 3101051030020 Chip capacitor 0.01UF K 25V (RoHS) 1 C510 T2H
278 3101051030020 Chip capacitor 0.01UF K 25V (RoHS) 1 C513 T2G
279 3101051030020 Chip capacitor 0.01UF K 25V (RoHS) 1 C514 T2H
280 3101051030020 Chip capacitor 0.01UF K 25V (RoHS) 1 C540 B3I
281 3101051030020 Chip capacitor 0.01UF K 25V (RoHS) 1 C552 T3H
282 3101051030020 Chip capacitor 0.01UF K 25V (RoHS) 1 C559 T3H
283 3101051030020 Chip capacitor 0.01UF K 25V (RoHS) 1 C607 T4D
284 3101051030020 Chip capacitor 0.01UF K 25V (RoHS) 1 C612 T4D
285 3101051030020 Chip capacitor 0.01UF K 25V (RoHS) 1 C635 T2E
286 3101051030020 Chip capacitor 0.01UF K 25V (RoHS) 1 C637 T2F
287 3101051030020 Chip capacitor 0.01UF K 25V (RoHS) 1 C645 T5C
288 3101051030020 Chip capacitor 0.01UF K 25V (RoHS) 1 C646 T5C
289 3101051030020 Chip capacitor 0.01UF K 25V (RoHS) 1 C656 T5G
290 3101052230000 Chip capacitor 0.022UF K 16V (RoHS) 1 C550 T3H
291 3101052230000 Chip capacitor 0.022UF K 16V (RoHS) 1 C642 T3G
292 3101051040060 Chip capacitor 0.1UF K 16V (RoHS) 1 C123 B5H
293 3101051040060 Chip capacitor 0.1UF K 16V (RoHS) 1 C134 B3E
294 3101051040060 Chip capacitor 0.1UF K 16V (RoHS) 1 C135 B2F
295 3101051040060 Chip capacitor 0.1UF K 16V (RoHS) 1 C146 B3F
296 3101051040060 Chip capacitor 0.1UF K 16V (RoHS) 1 C217 T2D
297 3101051040060 Chip capacitor 0.1UF K 16V (RoHS) 1 C218 T2D
298 3101051040060 Chip capacitor 0.1UF K 16V (RoHS) 1 C304 T3A
299 3101051040060 Chip capacitor 0.1UF K 16V (RoHS) 1 C311 T3A
300 3101051040060 Chip capacitor 0.1UF K 16V (RoHS) 1 C312 T3A
301 3101051040060 Chip capacitor 0.1UF K 16V (RoHS) 1 C313 T3A
302 3101051040060 Chip capacitor 0.1UF K 16V (RoHS) 1 C316 T3B U1
303 3101053330000 Chip capacitor 0.033UF K 16V (RoHS) 1 C316 T3B U2
304 3101051040060 Chip capacitor 0.1UF K 16V (RoHS) 1 C422 T2B
305 3101051040060 Chip capacitor 0.1UF K 16V (RoHS) 1 C436 B3B
306 3101051040060 Chip capacitor 0.1UF K 16V (RoHS) 1 C438 T2A
TC-320 Service Manual
27
No. Part No. Description Qty. Ref No. Print No. Remark307 3101051040060 Chip capacitor 0.1UF K 16V (RoHS) 1 C441 T3B
308 3101051040060 Chip capacitor 0.1UF K 16V (RoHS) 1 C519 T3H
309 3101051040060 Chip capacitor 0.1UF K 16V (RoHS) 1 C520 B4H
310 3101051040060 Chip capacitor 0.1UF K 16V (RoHS) 1 C528 B3G
311 3101051040060 Chip capacitor 0.1UF K 16V (RoHS) 1 C537 T4G
312 3101051040060 Chip capacitor 0.1UF K 16V (RoHS) 1 C546 B2G
313 3101051040060 Chip capacitor 0.1UF K 16V (RoHS) 1 C555 B4H
314 3101051040060 Chip capacitor 0.1UF K 16V (RoHS) 1 C557 T4I
315 3101051040060 Chip capacitor 0.1UF K 16V (RoHS) 1 C560 T3I
316 3101051040060 Chip capacitor 0.1UF K 16V (RoHS) 1 C603 B4C
317 3101051040060 Chip capacitor 0.1UF K 16V X7R (RoHS) 1 C654 T4D
318 3101052240010 Chip capacitor 0.22UF Z 10V Y5V (RoHS) 1 C208 T5D
319 3101052240010 Chip capacitor 0.22UF Z 10V Y5V (RoHS) 1 C649 T5D
320 3101052240010 Chip capacitor 0.22UF Z 10V Y5V (RoHS) 1 C653 T4D
321 3101051050000 Chip capacitor 1UF K 6.3V (RoHS) 1 C203 T4E
322 3101051050000 Chip capacitor 1UF K 6.3V (RoHS) 1 C207 T4E U1
323 3101051040060 Chip capacitor 0.1UF K 16V (RoHS) 1 C207 T4E U2
324 3101051050000 Chip capacitor 1UF K 6.3V (RoHS) 1 C547 B3G
325 3101051050000 Chip capacitor 1UF K 6.3V (RoHS) 1 C627 T4E
326 3101051050000 Chip capacitor 1UF K 6.3V (RoHS) 1 C628 T4E
327 3101051050000 Chip capacitor 1UF K 6.3V (RoHS) 1 C630 T3E
328 3101051050000 Chip capacitor 1UF K 6.3V (RoHS) 1 C634 T2E
329 3101064740000 Chip capacitor 0.47UF K 25V (RoHS) 1 C302 T3B
330 3101061050020 Chip capacitor 1UF K 25V (RoHS) 1 C609 T5D
331 3101061050020 Chip capacitor 1UF K 25V (RoHS) 1 C610 T4D
332 3101061050020 Chip capacitor 1UF K 25V (RoHS) 1 C615 T2G
333 3101061050020 Chip capacitor 1UF K 25V (RoHS) 1 C621 T2H
334 3101062250000 Chip capacitor 2.2UF K 10V (RoHS) 1 C618 T5D
335 3104071050070 Tantalum capacitor 1UF M 16V (RoHS) 1 C420 B2C
336 3104074750070 Tantalum capacitor 4.7UF M 10V (RoHS) 1 C128 B4G
337 3104074750070 Tantalum capacitor 4.7UF M 10V (RoHS) 1 C140 B3E
338 3104074750070 Tantalum capacitor 4.7UF M 10V (RoHS) 1 C201 T2E
339 3104074750070 Tantalum capacitor 4.7UF M 10V (RoHS) 1 C206 T4E
340 3104074750070 Tantalum capacitor 4.7UF M 10V (RoHS) 1 C305 T3A
341 3104074750070 Tantalum capacitor 4.7UF M 10V (RoHS) 1 C442 T3A
342 3104074750070 Tantalum capacitor 4.7UF M 10V (RoHS) 1 C602 B5B
343 3104074750070 Tantalum capacitor 4.7UF M 10V (RoHS) 1 C606 T4C
344 3104074750070 Tantalum capacitor 4.7UF M 10V (RoHS) 1 C643 T4C
345 3102992000040 Trimmer capacitor 10pF ±2.5pF 55V (RoHS) 1 TC101 B3E
346 3210305479000 Multi-layer chip inductor 4.7nH S 300mA 0.18ohm (RoHS) 1 L513 B1E
347 3210305150010 Multi-layer chip inductor 15nH J 300mA 0.32ohm (RoHS) 1 C515 B1E
348 3210305150010 Multi-layer chip inductor 15nH J 300mA 0.32ohm (RoHS) 1 L504 B2H
349 3210305150010 Multi-layer chip inductor 15nH J 300mA 0.32ohm (RoHS) 1 L511 B3H U1
350 3210305180000 Multi-layer chip inductor 18nH J 300mA 0.36ohm (RoHS) 1 L511 B3H U2
TC-320 Service Manual
28
No. Part No. Description Qty. Ref No. Print No. Remark351 3210305220000 Multi-layer chip inductor 22nH J 300mA 0.42ohm (RoHS) 1 L111 B4F
352 3210305220000 Multi-layer chip inductor 22nH J 300mA 0.42ohm (RoHS) 1 L114 B3G
353 3210305220000 Multi-layer chip inductor 22nH J 300mA 0.42ohm (RoHS) 1 L401 B2E
354 3210305220000 Multi-layer chip inductor 22nH J 300mA 0.42ohm (RoHS) 1 L404 B3F
355 3210305220000 Multi-layer chip inductor 22nH J 300mA 0.42ohm (RoHS) 1 L416 B2F
356 3210305220000 Multi-layer chip inductor 22nH J 300mA 0.42ohm (RoHS) 1 L516 T2H U1
357 3210305390000 Multi-layer chip inductor 39nH J 200mA 0.65ohm(RoHS) 1 L516 T2H U2
358 3210305101000 Multi-layer chip inductor 100nH J 150mA 1.25ohm(RoHS) 1 L517 B2H
359 3210305101000 Multi-layer chip inductor 100nH J 150mA 1.25ohm (RoHS) 1 R509 T2G
360 3210305101000 Multi-layer chip inductor 100nH J 150mA 1.25ohm(RoHS) 1 R510 T2G
361 3210305101000 Multi-layer chip inductor 100nH J 150mA 1.25ohm(RoHS) 1 R513 T2G
362 3210305101000 Multi-layer chip inductor 100nH J 150mA 1.25ohm (RoHS) 1 R514 T2G
363 3210306479000 Multi-layer chip inductor 4.7nH S 450mA 0.20ohm (RoHS) 1 L405 B2D
364 3210306479000 Multi-layer chip inductor 4.7nH S 450mA 0.20ohm (RoHS) 1 L408 B3D U1
365 3210306569000 Multi-layer chip inductor 5.6nH S 430mA 0.20ohm (RoHS) 1 L408 B3D U2
366 3210305399000 Multi-layer chip inductor 3.9nH S 300mA 0.18ohm (RoHS) 1 R414 B3C U1
367 3001060000000 Chip resistor 0Ω J 1/10W (RoHS) 1 R414 B3C U2
368 3213306561000 Multi-layer chip inductor 0.56uH K 35mA 1.55Ω Q:15(RoHS) 1 L411 B2B
369 3213306102000 Multi-layer chip inductor 1uH K 25mA 0.6Ω Q:35(RoHS) 1 L110 B4G
370 3213306102000 Multi-layer chip inductor 1uH K 25mA 0.6Ω Q:35(RoHS) 1 L201 T4D
371 3213306222000 Multi-layer chip inductor 2.2uH K 15mA 1.15Ω Q:35(RoHS) 1 L509 B3H
372 3213306332000 Multi-layer chip inductor 3.3uH K 15mA 1.55Ω Q:35(RoHS) 1 L102 B4E
373 3213306332000 Multi-layer chip inductor 3.3uH K 15mA 1.55Ω Q:35(RoHS) 1 L103 B4E
374 3221506601000 Bead 600Ω 100MHz ±25% 500mA (RoHS) 1 L101 B4E
375 3221506601000 Bead 600Ω 100MHz ±25% 500mA (RoHS) 1 L106 B2E
376 3221506601000 Bead 600Ω 100MHz ±25% 500mA (RoHS) 1 L107 B4H
377 3221506601000 Bead 600Ω 100MHz ±25% 500mA (RoHS) 1 L108 B3G
378 3221506601000 Bead 600Ω 100MHz ±25% 500mA (RoHS) 1 L109 B4G
379 3221506601000 Bead 600Ω 100MHz ±25% 500mA (RoHS) 1 L113 B3G
380 3221506601000 Bead 600Ω 100MHz ±25% 500mA (RoHS) 1 L202 T5D
381 3221506601000 Bead 600Ω 100MHz ±25% 500mA (RoHS) 1 L417 B2E
382 3221506601000 Bead 600Ω 100MHz ±25% 500mA (RoHS) 1 L602 T2E
383 3221506601000 Bead 600Ω 100MHz ±25% 500mA(RoHS) 1 L603 T3D
384 3221506601000 Bead 600Ω 100MHz ±25% 500mA(RoHS) 1 L605 T4E
385 3221506601000 Bead 600Ω 100MHz ±25% 500mA (RoHS) 1 L606 T4E
386 3221507600000 Bead 60Ω 100MHz ±25% 3000mA (RoHS) 1 L410 B3B
387 3221507600000 Bead 60Ω 100MHz ±25% 3000mA (RoHS) 1 L601 T4B
388 3221507600000 Bead 60Ω 100MHz ±25% 3000mA (RoHS) 1 L607 T4C
389 3221507221000 Bead 220Ω 100MHz ±25% 2000mA (RoHS) 1 L407 B3D
390 3231301250000 Air-core inductor E2-0.30*1.2*5TL (RoHS) 1 L406 B3D
391 3210108270000 Wire-wound chip inductor 27nH J 560mA 0.051ohm (RoHS) 1 L104 B3E U1
392 3210108230010 Wire-wound chip inductor 23nH J 590mA 0.046ohm (RoHS) 1 L104 B3E U2
393 3210209102010 Wire-wound chip inductor 1uH M 445mA 0.5ohm (RoHS) 1 L415 B2A
394 3231351640000 Air-core inductor E2-0.35*1.6*4TL(RoHS) 1 L412 B3A
TC-320 Service Manual
29
No. Part No. Description Qty. Ref No. Print No. Remark395 3231351640000 Air-core inductor E2-0.35*1.6*4TL(RoHS) 1 L413 B3A
396 3231351640000 Air-core inductor E2-0.35*1.6*4TL(RoHS) 1 L414 B3A
397 3231351640000 Air-core inductor E2-0.35*1.6*4TL(RoHS) 1 L501 B2B
398 3231351650000 Air-core inductor E2-0.35*1.6*5TL(RoHS) 1 L409 B3B
399 3304060300050 Varactor HVC350BTRF-E (RoHS) 1 D101 B4E
400 3304060300050 Varactor VR:15V 16.4pF/1VR 5.5pF/4VR(RoHS) 1 D102 B4E
401 3304040200000 Varactor VR:30V 19.7pF/1VR 2.1pF/28VR(RoHS) 1 D103 B3E
402 3303030800040 Switching diode 35V 100mA 0.8V/10mA (RoHS) 1 D501 B2B
403 3303060300010 Switching diode 60V 100mA 0.8V/10mA(RoHS) 1 D105 B3E
404 3303060300010 Switching diode 60V 100mA 0.8V/10mA (RoHS) 1 D502 B1F
405 3303060300010 Switching diode 60V 100mA 0.8V/10mA (RoHS) 1 D503 B1F
406 3303060300010 Switching diode 60V 100mA 0.8V/10mA (RoHS) 1 D504 B1H
407 3303060300010 Switching diode 60V 100mA 0.8V/10mA (RoHS) 1 D505 B1H
408 3303060300010 Switching diode 60V 100mA 0.8V/10mA (RoHS) 1 D616 B2F
409 3303060300010 Switching diode 60V 100mA 0.8V/10mA(RoHS) 1 D617 B2G
410 3307110100080 LED 15mcd 25mA 2.2V (RoHS) 1 D601 T4A
411 3307110100080 LED 15mcd 25mA 2.2V (RoHS) 1 D603 B5A
412 3307110100060 LED 200mcd 30mA 1.9V (RoHS) 1 D602 T4A
413 3307110100060 LED 200mcd 30mA (RoHS) 1 D604 B5A
414 3309030600000 Zener Diode 6.1V (RoHS) 1 D605 T4B
415 3411002000020 NPN transistor 50V 150mA (RoHS) 1 Q101 B2E
416 3411002000020 NPN transistor 50V 150mA (RoHS) 1 Q608 T4D
417 3404002000000 NPN transistor 20V 100mA (RoHS) 1 Q102 B3F
418 3403008000010 BRT Vce:50V VIoff:0.5V VIon:3V 100mA(RoHS) 1 Q103 B2F
419 3403008000010 BRT Vce:50V VIoff:0.5V VIon:3V 100mA(RoHS) 1 Q405 T2B
420 3403008000010 BRT Vce:50V VIoff:0.5V VIon:3V 100mA(RoHS) 1 Q501 T2G
421 3403008000010 BRT Vce:50V VIoff:0.5V VIon:3V 100mA(RoHS) 1 Q604 T2G
422 3403008000010 BRT Vce:50V VIoff:0.5V VIon:3V 100mA(RoHS) 1 Q605 T4F
423 3401002000990 NPN transistor10V 30mA (RoHS) 1 Q104 B4F
424 3401002000990 NPN transistor10V 30mA (RoHS) 1 Q105 B3F
425 3401001000490 PNP transistor 50V 150mA (RoHS) 1 Q201 T3D
426 3401001000490 PNP transistor 50V 150mA (RoHS) 1 Q607 T5G
427 3503020000030 N-MOSFET VDS:30V ID:100mA VGS(th):3.0V(RoHS) 1 Q202 T2D
428 3408002000030 NPN transistor 12V 100mA (RoHS) 1 Q401 B2F
429 3408002000030 NPN transistor 12V 100mA (RoHS) 1 Q406 B3F
430 3408002000030 NPN transistor 12V 100mA (RoHS) 1 Q505 B3H
431 3408002000030 NPN transistor 12V 100mA (RoHS) 1 Q506 B3H
432 3502010000130 N-MOSFET VDS:10V ID:500mA VGS(th):0.7V(RoHS) 1 Q402 B3D
433 3403007000020 BRT Vce:50V VIoff:0.3V VIon:1.4V 70mA (RoHS) 1 Q404 T2B
434 3403007000020 BRT Vce:50V VIoff:0.3V VIon:1.4V 70mA (RoHS) 1 Q502 T2G
435 3410001000020 PNP transistor 15V 500mA 135~600 (RoHS) 1 Q601 T2G
436 3410001000020 PNP transistor 15V 500mA 135~600 (RoHS) 1 Q602 T2H
437 4301080000020 Momentary contact switch 12VDC 0.05A (RoHS) 1 SW601 T3A
438 4301080000090 Momentary contact switch 12VDC 0.05A (RoHS) 1 SW604 T1B
TC-320 Service Manual
30
No. Part No. Description Qty. Ref No. Print No. Remark439 4301080000090 Momentary contact switch 12VDC 0.05A (RoHS) 1 SW605 T1D
440 3602999000000 Audio amplifier 1W 2.2~5.5V 62dB (RoHS) 1 U301 T3A
441 3605008005070 Operational amplifier3~32V 300mW 100dB (RoHS) 1 U401 T2B
442 3610999000060 SCM 100Pin (RoHS) 1 U601 T3F
443 3609049000010 Power management IC LDO 3V 300mA(RoHS) 1 U602 T5D
444 3612031000510 Memory EEPROM 16KB 1.8~5.5V(RoHS) 1 U603 T4G
445 3609006000000 Reset IC 2.7V (RoHS) 1 U605 T5E
446 3701212540030 TCXO 21.25MHz 2.8~3.0V ±1.5ppm (RoHS) 1 XT101 B4G
447 6201648000000 VCO shielding mask 0.30mm 00 (RoHS) 1
448 6201651000000 Filter shielding mask 0.20mm 00 (RoHS) 1
449 7000183000000 Heat-sinking device3*5*1.5mm 00 (RoHS) 1
450 3001053330000 Chip resistor 33KΩ F 1/16W (RoHS) 1 R125 B4H
451 3210305330000 Multi-layer chip inductor 33nH J 200mA 0.58ohm(RoHS) 1 L503 B2H
452 3001056820000 Chip resistor 6.8KΩ J 1/16W (RoHS) 1 R208 T4D
453 3001056820000 Chip resistor 6.8KΩ J 1/16W (RoHS) 1 R524 B4H
454 3001056820000 Chip resistor 6.8KΩ J 1/16W (RoHS) 1 R529 B2G
455 5205006000010 Earpiece jack LGK1503-03xx (RoHS) 1 J202 B4C
456 3399990000080 Zener Diode 6.8V (RoHS) 1 D301 T3A
457 3399990000080 Zener Diode 6.8V (RoHS) 1 D402 B2D
458 3399990000080 Zener Diode 6.8V (RoHS) 1 D403 B3C
459 3399990000080 Zener Diode 6.8V (RoHS) 1 D607 B4C
460 3399990000080 Zener Diode 6.8V (RoHS) 1 D608 B4D
461 3399990000080 Zener Diode 6.8V (RoHS) 1 D610 T4H
462 3701327610060 Crystal 32.768KHz ±20ppm 12.5pF (RoHS) 1 X601 T2F
463 3002991030160 Trimmer resistor 10K ±25% 0.15W (RoHS) 1 VR101 B4H
464 3001058200000 Chip resistor 82Ω F 1/16W (RoHS) 1 R526 B3G
465 3001064710000 Chip resistor 470Ω J 1/10W (RoHS) 1 R609 B5A
466 3001064710000 Chip resistor 470Ω J 1/10W (RoHS) 1 R634 B5A
467 3101050390000 Chip capacitor 0.3PF B 50V (RoHS) 1 C534 B3H
468 3101051040010 Chip capacitor 0.1UF Z 25V (RoHS) 1 C220 T3D U1
469 3101051040060 Chip capacitor 0.1UF K 16V (RoHS) 1 C220 T3D U2
470 3101051040010 Chip capacitor 0.1UF Z 25V (RoHS) 1 C536 B2G U1
471 3101051040060 Chip capacitor 0.1UF K 16V (RoHS) 1 C536 B2G U2
472 3101051800010 Chip capacitor 18PF J 50V (RoHS) 1 C106 B4E U1
473 3101051200020 Chip capacitor 12PF J 50V (RoHS) 1 C106 B4E U2
474 3101052700000 Chip capacitor 27PF J 50V (RoHS) 1 C418 B3B U1
475 3101054700010 Chip capacitor 47PF J 50V (RoHS) 1 C418 B3B U2
476 3101052700000 Chip capacitor 27PF J 50V (RoHS) 1 C517 B2H U1
477 3101052200010 Chip capacitor 22PF J 50V (RoHS) 1 C517 B2H U2
478 3210105100000 Multi-layer chip inductor 10nH J 300mA 0.26ohm (RoHS) 1 L508 B3H U1
479 3210305120000 Multi-layer chip inductor 12nH J 300mA 0.28ohm(RoHS) 1 L508 B3H U2
480 3210105100000 Multi-layer chip inductor 10nH J 300mA 0.26ohm (RoHS) 1 L514 B3H U1
481 3210305120000 Multi-layer chip inductor 12nH J 300mA(RoHS) 1 L514 B3H U2
482 3418001000010 NPN transistor10V 50mA 150 (RoHS) 1 Q503 B2H
TC-320 Service Manual
31
No. Part No. Description Qty. Ref No. Print No. Remark483 41003203000H0 PCB board 4L 4P H (RoHS) 1 PCB
484 3101051810010 Chip capacitor 180p J 50V (RoHS) 1 C507 B3G
485 3101050100030 Chip capacitor 1PF B 50V (RoHS) 1 C423 B3B U1
486 3101050300000 Chip capacitor 3PF B 50V (RoHS) 1 C423 B3B U2
487 3101050100030 Chip capacitor 1PF B 50V (RoHS) 1 C527 T2H
488 3101050100030 Chip capacitor 1PF B 50V (RoHS) 1 C545 B3H U1
489 1616100001420 Built-in software for HYT conventioanl portable radio(RoHS) 1 C545 U2
490 3001051820000 Chip resistor 1.8KΩ J 1/16W (RoHS) 1 R114 B3E
491 3001055620000 Chip resistor 5.6KΩ J 1/16W (RoHS) 1 R117 B3F U1
492 3001057520000 Chip resistor 7.5KΩ J 1/16W (RoHS) 1 R117 B3F U2
493 3001064730000 Chip resistor 47KΩ J 1/10W (RoHS) 1 R411 B2D U1
494 3001062730000 Chip resistor 27KΩ D 1/10W (RoHS) 1 R411 B2D U2
495 3001061830000 Chip resistor 18KΩ D 1/10W (RoHS) 1 R412 B2D
496 3001066830000 Chip resistor 68KΩ J 1/10W (RoHS) 1 R417 B2C U1
497 3001064730000 Chip resistor 47KΩ J 1/10W (RoHS) 1 R417 B2C U2
498 3101058200000 Chip capacitor 82PF J 50V (RoHS) 1 C538 T4G
499 3101052400010 Chip capacitor 24PF J 50V (RoHS) 1 C541 B3H
500 3104071060080 Tantalum capacitor 10UF M 6.3V (RoHS) 1 C132 B4G
501 3303240000000 Switching diode 75V 200mA 1.25V 6ns(RoHS) 1 D104 B3E
502 3504990000040 Power amplifier MOSFET 10uA 25V 10uA 7.2V 7W(RoHS) 1 Q403 B3C
503 3101050500010 Chip capacitor 5PF B 50V (RoHS) 1 C434 B3A U1
504 3101050300000 Chip capacitor 3PF B 50V (RoHS) 1 C434 B3A U2
505 3101050500010 Chip capacitor 5PF B 50V (RoHS) 1 C451 B4G
506 3104081550030 Tantalum capacitor 1.5UF M 16V (RoHS) 1 C115 B5E
507 3101061300000 Chip capacitor 13PF J 50V (RoHS) 1 C419 B2B U1
508 3101061200000 Chip capacitor 12PF J 50V (RoHS) 1 C419 B2B U2
509 3101061040020 Chip capacitor 0.1UF Z 25V (RoHS) 1 C114 B4F
510 3101061040020 Chip capacitor 0.1UF Z 25V (RoHS) 1 C116 B5E
511 3101064710000 Chip capacitor 470PF K 50V (RoHS) 1 C655 T4F
512 3001052200000 Chip resistor 22Ω J 1/16W (RoHS) 1 R639 T5D
513 3303030300000 Schottky barrier diode 40V 30mA 0.26V/1mA (RoHS) 1 D612 T5E
514 3303030300000 Schottky barrier diode 40V 30mA 0.26V/1mA (RoHS) 1 D619 T3H
515 3101054740000 Chip capacitor 0.47UF Z 6.3V(RoHS) 1 C548 T3G U1
516 3101051050000 Chip capacitor 1UF K 6.3V(RoHS) 1 C548 T3G U2
517 3101054740000 Chip capacitor 0.47UF Z 6.3V Y5V(RoHS) 1 C652 T4E
518 3615042000010 Power management IC 4.2V 1.2A (RoHS) 1 U606 T4C
519 3399990000260 Rectifier Diode 10V 15mA 380mV/1mA (RoHS) 1 D508 B1B
520 3001058220000 Chip resistor 8.2KΩ J 1/16W (RoHS) 1 R407 T2B
521 3001058220000 Chip resistor 8.2KΩ J 1/16W (RoHS) 1 R430 B3F
522 3001055610000 Chip resistor 560Ω J 1/16W (RoHS) 1 R126 B3G
523 3210305180000 Multi-layer chip inductor 18nH J 300mA 0.36ohm (RoHS) 1 L112 B3G
524 3001051220000 Chip resistor 1.2KΩ J 1/16W(RoHS) 1 R523 B3H
525 3001051220000 Chip resistor 1.2KΩ J 1/16W(RoHS) 1 R636 T3G
526 3603042004860 IF processor IC 10.245MHz (RoHS) 1 U608 B4H
TC-320 Service Manual
32
No. Part No. Description Qty. Ref No. Print No. Remark527 3001056810000 Chip resistor 680Ω J 1/16W (RoHS) 1 R515 B4H
528 3404001000040 NPN transistor45V 100mA (RoHS) 1 Q611 T3H
529 3604007000000 PLL IC 1.2GHZ(RoHS) 1 U101 B4G
530 3001059120000 Chip resistor 9.1K J 1/16W (RoHS) 1 R635 T3G U1
531 3001058220000 Chip resistor 8.2KΩ J 1/16W (RoHS) 1 R635 T3G U2
532 3001052220010 Chip resistor 2.2KΩ F 1/16W (RoHS) 1 R502 T3H U1
533 3001052220000 Chip resistor 2.2KΩ J 1/16W (RoHS) 1 R502 T3H U2
534 3305180300000 Diode 100mA max 1Ω(RoHS) 1 D401 B2B
535 5205005000100 USB connector 5Pin 0.5mm 9.9*9.2*4.0mm(RoHS) 1 J201 B4D
536 3803040560030 SAW Filter 405MHz ±5MHz 3.5dB(RoHS) 1 SAWF50 G2 U1
537 3803045560000 SAW Filter 455MHz ±5MHz 4.5dB(RoHS) 1 SAWF50 G2 U2
538 3803041560000 SAW Filter 415MHz ±5MHz 3.5dB(RoHS) 1 SAWF50 G1 U1
539 3803046560040 SAW Filter 465MHz±6MHz 4.0dB(RoHS) 1 SAWF50 G1 U2
540 3803041060000 SAW Filter 410MHz ±10MHz 3.5dB(RoHS) 1 SAWF50 G2 U1
541 3803046060000 SAW Filter 460MHz ±10MHz 3.5dB(RoHS) 1 SAWF50 G2 U2
542 3920450300000 Frequency detector 100mv±40mv 450KHz ±4kHz 1 CD501 T4H
543 3801045030390 Ceramic filter 450KHz ±6.0KHz 1 CF501 B4I
544 3802021750090 Crystal filter UM-5 21.7MHz ±6KHZ 1 XF501 B3I
TC-320 Service Manual
33
Adjustment Description Required Test Instruments:
Radio communication test set (HP8921) 1 set
10V/3A regulated DC power supply 1 set
Digital voltmeter 1 set
Ammeter 1 set
Preparations:
Place the board to be tested on the test fixture (please ensure good connection between each test point
and the fixture), and connect the board to a power supply with DC voltage of 3.8V.
Wired Clone
1. Operations:
1) Connect two radios using a clone cable. Power on the source radio while holding down SK, and it will
enter Wired Clone Mode after 2 seconds. The target radio can be directly turned on to enter user
mode.
(2) In Wired Clone mode, press SK of the source radio to switch between User Clone Mode and Factory
Clone Mode (check the Factory Clone Mode option when programming or you will fail to switch.).
3) Hold down PTT key of the source radio to clone data to the target radio. You can clone the data to
multiple target radios in the same way.
2. LED Indications:
Status of the source radio:
During the cloning process, the LED solidly glows red. Once it finishes, the LED will solidly glow green.
Clone errors:
(1). User clone. Once clone begins, frequency band and radio ID (Model ID) will be checked. The LED
glows orange for 2 seconds and then goes out to indicate a failed check. If the check is successfully
carried out but error occurs during data cloning, the LED will flash orange. In this situation, press any
key other than the Power Switch to turn it off.
(2) Factory Clone: If error occurs during data cloning, the LED will flash orange. In this situation, press
any key other than the Power Switch to turn it off. Hold down PTT to initiate a new clone process.
Status of the target radio:
TC-320 Service Manual
34
The LED solidly glows green during the cloning process and goes out once it finishes.
3. Differences between Factory Clone Mode and User Clone Mode:
(1) User Clone Mode: Only clone the data of user mode. Test parameters like adjustment frequencies,
adjustment items and baseband parameters will not be cloned.
(2) Factory Clone Mode: Clone all the data excluding serial No.
4. Instructions:
(1) Error will occur when data is cloned without cable connection. Please refer to 2-(2).
(2) Error may occur during test data clone in Factory Clone Mode if you wrongly press the side key and
switch into User Clone mode (LED flashes red once).
(3) If battery of the source radio runs low in clone mode, red LED will flash and low battery alert will be
given as well.
Adjustment
1. Description of Adjustment Procedures:
(1) Power on the radio while holding down PTT and SK for more than 2s to enter adjustment mode (the
LED flashes orange). After the keys are released, the radio will enter the adjustment item in this mode
(the item entered depends on the position where the Channel Selector knob locates). And the LED will
glow red/green for adjustment items in TX/RX groups respectively.
(2) Or connect the programming cable to the radio for real-time adjustment in PC mode.
2. Description of Adjustment Items:
(1) Switch of Wide/Narrow Bandwidth and Frequency in an Adjustment Item:
In an adjustment item, short press SK to switch between wide and narrow bandwidth. The default
adjustment point is the first frequency (low frequency) of current bandwidth. Short press PTT to switch
among different frequencies after selecting a bandwidth.
(2) Adjustment Items Include:
TX Items:
TX Frequency Tolerance and VCO Lock Voltage.
Note: These items are adjusted outside the adjustment mode via hardware.
TX Low Power, TX High Power, CDCSS Waveform, CDCSS Deviation, CTCSS Deviation (low), CTCSS
Deviation (medium), CTCSS Deviation (high), TX Low Voltage Threshold and Max. Deviation.
Note: These items are adjusted inside the adjustment mode.
TC-320 Service Manual
35
RX Items:
VCO Lock Voltage (outside the mode), Squelch and RX Low Voltage Threshold.
3. Specific Operations and Requirements: (1) Conventional Adjustment Items (outside the adjustment mode): TX Frequency Tolerance, VCO Lock
Voltage.
(Note: The configuration file has preset CH1, CH2 and CH3 as wide bandwidth with low, medium and
high frequency respectively and CH4, CH5 and CH6 as narrow bandwidth with low, medium and high
frequency respectively. Make sure the antenna or load is connected before adjustment.)
Test Adjustment
Item Condition Test
Instrument Test point Part Method
Specification/
Remarks
TX
Frequency
Tolerance
Rotate the
Channel
Selector knob to
CH1 and press
PTT to transmit.
Communication
test set Antenna VR101
Adjust VR101
with ceramic
tuning tool to
control the center
frequency within
the error range.
≤150Hz
Rotate the
Channel
Selector knob to
CH3 and press
PTT to transmit.
Check 2.2V~2.6V
TX VCO
Lock
Voltage Rotate the
Channel
Selector knob to
CH1 and press
PTT to transmit.
Digital
voltmeter
CV
TC101
Check ≥0.5V
TC-320 Service Manual
36
Rotate the
Channel
Selector knob to
CH3.
Adjust TC101
with ceramic
tuning tool until
the lock voltage
meets the
requirements.
2.2V~2.6V
RX VCO
Lock
Voltage Rotate the
Channel
Selector knob to
CH1.
TC101
Check ≥0.5V
(2) Adjustment in the Adjustment Mode (Note: Make sure the antenna or load is connected before
adjustment; rotate the Channel Selector knob to save the adjusted values automatically.)
Test Adjustment
Item Condition Test
Instrument
Test
point Part Method
Specificati
on/
Remarks
Rotate the Channel
Selector knob to
CH2 and select low
frequency.
High
Power Short press PTT key
to switch among
different frequencies
(low, medium and
high)
Press [+] or [-]
key to adjust
the output
power, and
rotate the
Channel
Selector knob
to save it.
1.8-2.2W
I≤1.4A
TX Power
Low
Power
Rotate the Channel
Selector knob to
CH1 and select low
frequency.
Communica
tion Test Set
/ Ammeter
Antenna
Connect
or
Press [+] or [-]
key to adjust
the output
power, and
0.5W±0.2W
I≤0.8A
TC-320 Service Manual
37
Short press PTT key
to switch among
different frequencies
(low, medium and
high)
rotate the
Channel
Selector knob
to save it.
Rotate the Channel
Selector knob to
CH3 and “wide
bandwidth” and “low
frequency” are
selected.
CDCSS Waveform Short press PTT to
switch among
frequencies; and
long press PTT to
switch between
wide and narrow
band.
VR6
01
Adjust the
waveform to
make it
similar to
square
waveform.
Rotate the Channel
Selector knob to
CH4 and “wide
bandwidth” and “low
frequency” are
selected.
CDCSS
Deviation
Wide
Bandwidt
h Short press PTT key
to switch among
different frequencies
(low, medium and
high)
Communica
tion test set
BPF:
<20Hz~300
Hz
Antenna
Press [+] or [-]
key to make
adjustment
until the
CDCSS
deviation
meets the
requirements.
600~900Hz
TC-320 Service Manual
38
Short press SK key
to enter the “narrow
bandwidth” and
select low
frequency. Narrow
Bandwidt
h Short press PTT key
to switch among
different frequencies
(low, medium and
high)
Press [+] or [-]
key to make
adjustments
until the
CDCSS
deviation
meets the
requirements.
350~550Hz
CTCSS
Deviation
Wide
Bandwidt
h
Rotate the Channel
Selector knob to
CH5, CH6 and CH7
with CTCSS
respectively
corresponding to:
low, medium and
high frequencies.
Short press PTT key
to switch among
different CTCSS
frequencies on each
channel.
Communica
tion Test Set
:<20Hz~300
Hz
Antenna
Use [+] or [-]
key to make
slight
adjustment
until the
CTCSS
deviation
meets the
requirements.
600~900Hz
TC-320 Service Manual
39
Narrow
Bandwidt
h
On CH5, CH6 and
CH7, short press SK
key to enter “narrow
bandwidth”, and
short press PTT key
to switch among
different
frequencies.
Use [+] or [-]
key to make
slight
adjustment
until the
CDCSS
deviation
meets the
requirements.
350~550Hz
Wide
Bandwidt
h
3.7~4.3KHz
Maximum
Frequency
Deviation Narrow
Bandwidt
h
Rotate the Channel
Selector knob to
CH9.
Short press SK key
to switch between
wide and narrow
bandwidth.
Communica
tion Test Set
BPF:
<20Hz~15k
Hz
AF:1kHz
120mV
Antenna
Earpiec
e
Socket
Use [+] or [-]
key to ensure
that the
specifications
meet the
requirements.
Rotate the
Channel
Selector knob
to save the
value after
wide and
narrow
bandwidth
adjustment.
1.7~
2.3KHz
Modulation
Sensitivity
Wide
Bandwidt
h
Rotate the Channel Selector knob to
CH9.
Short press SK key
Communica
tion Test Set
BPF:
Check 3.0KHz
TC-320 Service Manual
40
Narrow
Bandwidt
h
to switch between
wide and narrow
bandwidth.
<20Hz~15k
Hz
AF:1kHz
13±3mV
1.5KHz
TX Low
Voltage
Threshold
Rotate the Channel Selector
knob to CH8.
Digital
voltmeter
Power
Supply
Port
Pow
er
Sup
ply
Adjust output
voltage of the
power supply
to 3.42V, and
press [+] or [-]
key to sample
the current
value.
≤3.40V:
the
continuous
alert tone
will sound to
indicate
transmissio
n inhibition.
(3) RX Circuit Adjustment
Item Condition Test
InstrumentPart Method
Specificati
on/
Remarks
Squelch
On Wide
Bandwidth
Rotate the Channel Selector knob to CH10 and SQL level 5 ON is set. Press [+] or [-] key to sample current value. At this time, wide bandwidth and low frequency are selected. Short press PTT
key to switch the
frequency (low,
medium and
high).
Communicati
on Test Set
SSG:-119dB
m
MOD:1KHz
DEV:3KHz
Filter: 0.3~
3KHz
Antenna
Earpiece
Socket
Adjust the
output
signals of
SSG to the
squelch
level. Rotate
the Channel
Selector knob to save
the value
after
three-point
adjustment.
Squelch
level (Level
5):
-121±1dB
m
TC-320 Service Manual
41
Narrow
Bandwidth
Short press SK to
enter “narrow
band”. Press [+]
or [-] key to
adjust squelch
level. Short press
PTT key to
switch the
frequency.(low,
medium and
high)
Communicati
on Test Set
SSG:-118dB
m
MOD:1KHz
DEV: 1.5KHz
Filter: 0.3~
3KHz
Same as
above.
Squelch
level(Level
5):
-120±1dB
m
Wide
Bandwidth
Rotate the Channel Selector knob to CH11 and SQL level 5 ON is set. Press [+] or [-] key to sample current value. At this time, wide bandwidth and low frequency are selected. Short press PTT
to switch the
frequency.
Communicati
on Test Set
SSG:-121dB
m
MOD:1KHz
DEV: 3KHz
Filter: 0.3~
3KHz
Adjust the
output
signals of
SSG to the
squelch
level. Rotate
the Channel
Selector knob to save
the value
after
three-point
adjustment.
Squelch
level (Level
5):
-122±1dB
m
Squelch
Off
Narrow
Bandwidth
Short press SK to enter “narrow band”. Press [+] or [-] key to sample the current value. Short press PTT key to switch the frequency.
Communicati
on Test Set
SSG:-120dB
m
MOD:1KHz
DEV: 1.5KHz
Filter: 0.3~
3KHz
Antenna
Earpiece
Socket
Same as
above.
Squelch
level(Level
5): -121±1dB
m
RX Low
Voltage
Threshold
Rotate the Channel Selector knob to CH12.
Digital
voltmeter
Power
Supply
Port
Power
Supply
Adjust
output
voltage of
the power
supply to
3.52V, and
press [+] or
[-] key to
Alert tone
will not be
given
without red
LED
flashing
when RX
voltage is
TC-320 Service Manual
42
sample the
current
value.
3.52V.
Wide
Bandwidth
High, medium,
low frequency
out of the mode
Communicati
on Test Set
SSG:-121dB
m
MOD:1KHz
DEV: 3KHz
Filter: 0.3~
3KHz
-119dBm
or above
Sensitivity
Narrow
Bandwidth
High, medium,
low frequency
out of the mode
Communicati
on Test Set
SSG:-120dB
m
MOD:1KHz
DEV: 1.5KHz
Filter: 0.3~
3KHz
Antenna
Earpiece
Socket Check
-117dBm
or above
TC-320 Service Manual
43
Troubleshooting Flow Chart Transmit Circuit
No transmission
Start
Normal TX power supply?
LED of D602 glows red?
Check the TX power supply.
TX VCO locked?
Check the TX VCO.
Check the TX channel.
Replace D602.No sound LED fails to
glow/flash.
Check the antenna.
Check Q401, Q402, Q403 and U501.
Yes
No
Check the APC circuit.
Low TX power
Check the voice channel
(Output ports of MIC,U501,
U601, MOD_OUT).
Replace D602.
Yes
No No
Yes
TC-320 Service Manual
44
Receive Circuit
TC-320 Service Manual
45
MCU
Start
Normal power-on alert?
The speaker works normally?
Yes
No
Yes
No
Clock crystal (X601) of MCU works
normally?
Normal VCC (operating voltage of
MCU)?
Yes
NoCheck U602.
Replace X601.No
Yes
Other pins control normally?
MCU works normally.
Yes
NoCheck battery detect pin 40,
EEPROM detect pin 83/84 and the reset IC pin 93.
Replace the speaker.
TC-320 Service Manual
46
Disassembly and Assembly Disassembly
1. Power off the radio
2. Remove the belt clip.
3. Remove the battery
a. Push the battery latch upwards;
b. Remove the battery cover;
c. Take out the battery by lifting its bottom side.
4. Remove the antenna
TC-320 Service Manual
47
5. Remove the Channel Selector knob, nut and waterproof ring
a. Detach the Channel Selector knob cover;
b. Unfasten the screw;
c. Remove Channel Selector knob;
d. Remove the nut and waterproof ring.
6. Disassemble chassis of the radio and the cover of PTT key.
a. Unfasten the 4 screws on the chassis;
b. Lift the bottom of the chassis;
c. Pull the chassis out.
d. Remove the cover of PTT key.
TC-320 Service Manual
48
7. Disassemble the main PCB
a. Remove the two fixing screws on the PCB;
b. Remove the PCB and supporting ring of the Channel Selector knob.
c. Beware of the speaker cable and the charging piece at the bottom.
整机充电极片
Assembly
1. Install the main PCB
a. Make sure that the speaker is well connected, and the charging piece on the bottom is correctly
installed;
b. Install the supporting ring of the Channel Selector knob;
c. Attach the main PCB;
d. Attach and secure two screws (Note: Control the torsion force within 0.8-1.2kgf);
e. Don’t damage the speaker cable during installation.
Charging piece
TC-320 Service Manual
49
整机充电极片
2. Assemble the chassis
a. Attach the cover of PTT key.
b. Attach the chassis of radio;
c. Attach and secure the four fixing screws (Note: Control torsion force within 1.2-1.5kgf).
3. Assemble the nuts and Channel Selector knob on the top
a. Attach and secure the nuts on the top of the radio (with a waterproof ring);
b. Attach the Channel Selector knob;
c. Attach and secure the fixing screw;
d. Attach and secure the Channel Selector knob cover;
Charging piece
TC-320 Service Manual
50
4. Assemble the antenna
5. Attach the battery
a. Insert the battery;
b. Attach the battery cover.
TC-320 Service Manual
51
6. Attach the belt clip
TC-320 Service Manual
52
Exploded View
26
25
24
1716
3
2
4
1
6
5
7
891011
12
49
444342
41
40
39
38
37
36
35
34
3332
28
2930 31
27
15
14 13
45
46
47 48
2223
18192021
TC-320 Service Manual
53
Parts List 2 No. Part No Items Qty (PCS).
1 6201658001010 Encoder knob cover (RoHS) 1
2 7102006000100 Machine screw M2.0*6.0mm 1
3 6000718100000 Encoder knob (RoHS) 1
4 7206007400000 Fixing nut of encoder switch (RoHS) 1
5 6100335000000 O_RING for antenna (RoHS) 1
6 6000737100010 Light guide (charge LED) (RoHS) 1
7 6000736100000 Light guide (signal indicator) (RoHS) 1
8 6100363000010 POWER key (RoHS) 1
9 6201644000000 Speaker felt (steel) (RoHS) 1
10 7400229000000 Speaker felt (cloth) (RoHS) 1
11 7500250000000 Speaker washer (RoHS) 1
12 4210038000000 Cable (RoHS) 2
13 6000739000000 Accessory jack cover (RoHS) 1
14 6201643000000 Battery discharging piece (RoHS) 2
15 6000734000010 Radio chassis (RoHS) 1
16 Li-ion battery pack (RoHS) 1
17 7500249000000 Sponge pad for rear cover (RoHS) 2
18 6201796000000 metal holder of belt clip 1
19 7000205000000 Belt clip spring (RoHS) 1
20 7000181000000 Fender washer (RoHS) 1
21 6000836000010 Belt clip, black (RoHS) 1
22 7102505000200 Machine screw M2.5x4.8mm (RoHS) 2
23 7000206000000 Shaft for belt clip (RoHS) 1
24 6000733000000 Battery cover(RoHS) 1
25 7000179000000 Spring of battery latch(RoHS) 1
26 6000738000000 Battery latch(RoHS) 1
27 7102008020100 Self-tapping screw PT2.0*8.0mm(RoHS) 4
28 7600036000000 Shield of main unit (RoHS) 1
29 7400233000000 PCB shield (RoHS) 1
30 7400034000000 Speaker insulation pad (RoHS) 1
31 5001000000090 Speaker (RoHS) 1
32 7101904020200 Self-tapping screw ST1.9*4.0mm(RoHS) 1
33 6201671000000 Charging piece (RoHS) 2
34 7209802800010 Supporting ring of encoder switch (RoHS) 1
35 4304030000030 Gray code rotary switch (RoHS) 1
36 6201653000020 Antenna bracket (RoHS) 1
37 7101704020100 Self-tapping screw ST1.7*4.0mm(RoHS) 2
38 4301040000060 PTT switch (RoHS) 2
39 7600037000000 Conductive sponge (RoHS) 1
40 7600020000000 3M embossed copper foil (RoHS) 1
TC-320 Service Manual
54
41 Main PCB(RoHS) 1
42 5002230000010 MIC (RoHS) 1
43 6100111000010 MIC cover (silicone rubber) (RoHS) 1
44 7400077000000 MIC net (RoHS) 1
45 6000732001010 Front case (RoHS) 1
46 6300062001010 Decorative sheet (zink alloy) (RoHS) 1
47 6100365000000 PTT key (silicone rubber ) (RoHS) 1
48 6000735000020 PTT key (RoHS) 1
49 Antenna (RoHS) 1
Note: Parts that are not marked with part number may vary with radio frequency band.
TC-320 Service Manual
55
Packing Diagram
B20
1U
601
a11
a22 3
a34
a4
b1 b2 b3 b4
5 6 7 8
Vcc10
GN
D 0
Q10
2Q
406
Q40
1Q
402
Q40
3LP
FW
401
12m
Vrm
s66
mV
rms
-3dB
7dB
17dB
26dB
34dB
33dB
发射
部分
a11
a22 3
a34
a4
b1 b2 b3 b4
5 6 7 8
W40
1LP
FS
AW
501/
502
Q50
3SA
W50
3
Q50
5LO
XF5
01Q
506
U60
8U
601
U30
1
-120
dBm
-121
dBm
-124
.5dB
m
a11
a22 3
a34
a4
b1 b2 b3 b4
5 6 7 8
Vcc1
0
GN
D 0
a11
a22 3
a34
a4
b1 b2 b3 b4
5 6 7 8
-106
.5dB
m
-110
dBm
-3dB
m-1
20dB
m-1
02dB
m-1
05dB
m1.
8Vrm
s18
6mV
rms
200m
Vrm
s
接收
部分
版电平增益分配
5 5
4 4
3 3
2 2
1 1
DD
CC
BB
AA
VC
C
V_S
AV
E
VC
CV
R
VT
VD
D
Mod
el N
ame:
Pre
pare
:
File
No.
:R
ev:
Dat
e:
Pag
e:of
Par
t Nam
e:
HYT Science&technology Co.Ltd.
Chec
k:A
ppro
ve:
V1.
0
11
Wed
nesd
ay, A
ugus
t 04,
201
0
TC-3
20 H
Mod
el N
ame:
Pre
pare
:
File
No.
:R
ev:
Dat
e:
Pag
e:of
Par
t Nam
e:
HYT Science&technology Co.Ltd.
Chec
k:A
ppro
ve:
V1.
0
11
Wed
nesd
ay, A
ugus
t 04,
201
0
TC-3
20 H
Mod
el N
ame:
Pre
pare
:
File
No.
:R
ev:
Dat
e:
Pag
e:of
Par
t Nam
e:
HYT Science&technology Co.Ltd.
Chec
k:A
ppro
ve:
V1.
0
11
Wed
nesd
ay, A
ugus
t 04,
201
0
TC-3
20 H
TC-320H Block Diagram
C522
Q104
LO
Q406
Q105
LO
Q611
Q503
AT41511
R204
CHARG
MOD
QT_OUT
BUSY
RF AMP
R602
Q103
AMP
SAVE
R603
RESET
D105
Q505
U101
MIX
VCO_IN
MB15E03SL
CD501
D503
D502
VCO_IN
UP
TX/RX SW
DOW
Q102
AF_OUT
RFC
Q506
APC
QT_OUT
Q501
Q502
STB/CK
R103
DATA/
C132
V1
TX_CTLMOD_OUT
Q602
V2
U301
U604
LD(SIG OUT)
BUSY(SQL)
RFC
BAT
LPF
RF AMP
D102
APC
D103
RF AMP
D101
PRE AMP
CP
Q601
MIC IN
CHARG
CHARG
J202
AF(DEMOD)
R515
LOOP FILTER
SW
C553
J201
IF AMP
NFIL IN
U603
SDASCL
SW
TX OUT
SW
U401
PTT
MON
EC0
R_LED
T_LED
EC1
SW
EC2
EC3
PTT
DC-DC
MON
POWER
APA_EN
RXD
TXD
EEPROM
U602
Q401
AF VCO
Q402
CP
Q403
MOD
RIPPLE FILTER
C204
NFIL OUT
D616
D617
U608
MC3361P
OSCIN
21.25M
TX_OUT
BLOC
K DI
AGRA
M
D401
D501
Q604
Q605
POWER
Q607
SW
D504
D505
Q608
D612
VOX
21.7M
VR601
R632
R633
QT_OUT
QT_MOD
U605
Li X
iang
jia
SW
AF5
03S
WA
F503
12
W40
1A
NTE
NN
AW
401
AN
TEN
NA
1
D60
2
LED
D60
2
LED
12
SW
602
SW
PB
SW
602
SW
PB
12
12
12
G60
1B
ATT
ER
YG
601
BA
TTE
RY
12
SW
AF5
01S
WA
F501
SW
601
SW
PB
SW
601
SW
PB
12
XT1
01X
T101
CF5
01C
F501
SW
603
SW
PB
SW
603
SW
PB
12
12
SW
604
SW
PB
SW
604
SW
PB
12
12
B20
1
MIC
B20
1
MIC
+1
-2
U60
1U
601
X60
1X
601
D60
3
LED
D60
3
LED
12
SW
606
SW
606
D60
4D
604
12
XF5
01X
F501
B30
2
Spe
aker
B30
2
Spe
aker
+1
-2
SW
AF5
02S
WA
F502
SW
605
SW
PB
SW
605
SW
PB
12
5 5
4 4
3 3
2 2
1 1
DD
CC
BB
AA
V_B
AT
VT
VR
V_SA
VE
V_SA
VE
R/T
MO
D
RFC
RF-
IN
CP
VCO
-IN
APC
LO
TC-320U1(
400-420MHz)
原理
图 RF
C44
547
0pC
445
470p
L105
0L105
0
D10
1H
VC35
0BD
101
HVC
350B
2 1
C42
647
0pC
426
470p
C43
910
pC
439
10p
C51
210
0pC
512
100p
R12
768
kR
127
68k
C42
20.
1uC
422
0.1u
R41
147
kR
411
47k
Q40
5D
TC11
4EE
Q40
5D
TC11
4EE
3 1
2
R51
14.
7kR
511
4.7k
R11
24.
7kR
112
4.7k
Q10
3D
TC11
4EE
Q10
3D
TC11
4EE
3 1
2
SAW
F502
HD
F465
ASA
WF5
02H
DF4
65A
1
2
3
4
TC10
1
10p
TC10
1
10p
1 2
R40
78.
2kR
407
8.2k
R11
310
0kR
113
100k
C51
515
nC
515
15n
D10
4BA
S16X
V2T1
GD
104
BAS1
6XV2
T1G 1 2
C43
80.
1uC
438
0.1u
L409
5TL409
5T
R41
310
KR
413
10K
R40
827
kR
408
27k
L414
4TL414
4T
C43
11.
5pC
431
1.5p
R41
43.
9nH
R41
43.
9nH
C14
60.
1uC
146
0.1u
R12
656
0R
126
560
R11
87.
5kR
118
7.5k
R43
08.
2KR43
08.
2K
C41
533
pC
415
33p
R41
047R
410
47
C44
347
0pC
443
470p
C43
32pC43
32p
L112
18nH
L112
18nH
R42
7
100k
(1%
)
R42
7
100k
(1%
)
C15
110
PC
151
10P
C42
01u
/10V
C42
01u
/10V
C11
40.
1uC
114
0.1u
TP10
0C
VTP
100
CV 1
R43
310
0KR
433
100K
C50
447
0pC
504
470p
L407
221s
L407
221s
Q40
3R
D07
MU
S2B
Q40
3R
D07
MU
S2B
1
3 2
C13
03pC13
03p
C13
40.
1uC
134
0.1u
R40
23.
3kR
402
3.3k
C50
9
470P
C50
9
470P
C40
347
0PC
403
470P
D40
2ED
Z6.8
BD
402
EDZ6
.8B 1
2
C45
9N
CC
459
NC
C13
310
00p
C13
310
00p
C14
86pC14
86p
C43
45pC
434
5pR
418
100
R41
810
0
D40
3ED
Z6.8
BD
403
EDZ6
.8B
12
C41
710
00p
C41
710
00p
C41
310
00p
C41
310
00p
Q40
4D
TA11
4YE
Q40
4D
TA11
4YE 3
1
2
L415
1uH
L415
1uH
R42
315
0k(1
%)
R42
315
0k(1
%)
TP50
5AN
TGTP
505
ANTG 1
L408
4.7n
HL4
084.
7nH
R11
75.
6kR
117
5.6k
R11
527
0R
115
270
C45
36PC
453
6P
D61
6
HVC
131
D61
6
HVC
131
21
Q10
42S
C51
08Q
104
2SC
5108
13 2
D50
11S
S356
D50
11S
S356
1 2
R41
218
kR
412
18k
D50
8H
SM88
ASTL
D50
8H
SM88
ASTL
C42
82pC42
82p
R40
51MR40
51M
-+
+-
U40
1N
JM29
04
-+
+-
U40
1N
JM29
04
1 3 42
578 6
C15
210
0pC
152
100p
R41
768
kR
417
68k
C10
90.
5pC
109
0.5p
C50
22pC
502
2p
C11
29pC11
29p
C43
23.
6pC
432
3.6p
Q10
2PR
F957
Q10
2PR
F957
23
1
C11
710
0pC
117
100p
R11
147R
111
47
R40
34.
7R
403
4.7
L111
22nH
L111
22nH
R42
410
0k(1
%)
R42
410
0k(1
%)
R50
910
0nH
R50
910
0nH
D10
5
HVC
131
D10
5
HVC
131
2 1
R41
9
0.39
R41
9
0.39
R11
910R
119
10
C41
913
pC
419
13p
C44
10.
1uC
441
0.1u
C11
60.
1uC
116
0.1u
R11
02.
2kR
110
2.2k
D10
3BB
179
D10
3BB
179
21
C13
110
0pC
131
100p
R42
515
0k(1
%)
R42
515
0k(1
%)
C44
447
0pC
444
470p
D50
5H
VC13
1D
505
HVC
131
21
L410
600s
gL4
1060
0sg
C42
9N
CC
429
NC
C42
31pC42
31p
R51
010
0nH
R51
010
0nH
C41
147
0PC
411
470P
L405
4.7n
HL4
054.
7nH
R10
91kR
109
1k
L406
5TL406
5T
C41
647
0pC
416
470p
D61
7H
VC13
1D
617
HVC
131
21
C41
047
0pC
410
470p
C40
447
pC
404
47p
R10
647
kR
106
47k
C43
70.
01u
C43
70.
01u
R11
610
kR
116
10k
C40
12pC
401
2p
L513
4.7n
HL5
134.
7nH
R11
41.
8kR
114
1.8k
C43
60.
1uC
436
0.1u
R40
910
kR
409
10k
Q50
2D
TA11
4YE
Q50
2D
TA11
4YE 3
1
2
R40
615
kR
406
15k
L102
3.3u
HL1
023.
3uH
C14
40.
5pC
144
0.5p
L501
4TL501
4T
C14
04.
7u/1
0VC
140
4.7u
/10V
R43
44.
7KR43
44.
7K
C41
2
1000
p
C41
2
1000
p
C41
827
pC
418
27p
C11
51.
5u/1
6VC
115
1.5u
/16V
L104
27nH
L104
27nH
R41
66.
8kR
416
6.8k
R43
13.
9KR43
13.
9K
L404
22nH
L404
22nH
C42
115
pC
421
15p
C51
610
0pC
516
100p
R10
710
kR
107
10k
C51
1N
CC
511
NC
C14
247
0pC
142
470p
C44
647
0pC
446
470p
R40
433
0R
404
330
R51
410
0nH
R51
410
0nH
L401
22nH
L401
22nH
R12
468
kR
124
68k
Q40
62S
C42
26Q
406
2SC
4226
2
3 1
D50
2H
VC13
1D
502
HVC
131
21
R42
810
kR
428
10k
Q10
12S
C53
43E
Q10
12S
C53
43E
1
32
C15
010
0pC
150
100p
C10
618
pC
106
18p
C50
13pC50
13p
C13
9
1000
p
C13
9
1000
pR
422
150k
(1%
)R
422
150k
(1%
)
C44
24.
7u/1
0VC
442
4.7u
/10V
Q40
12S
C42
26Q
401
2SC
4226
2
3 1
R41
547R
415
47R
401
3.3k
R40
13.
3k
C10
510
00p
C10
510
00p
Q10
52S
C51
08Q
105
2SC
5108
1
3 2
L416
22nH
L416
22nH
C40
9N
CC
409
NC
Q50
1D
TC11
4EE
Q50
1D
TC11
4EE
3 1
2
D50
3H
VC13
1D
503
HVC
131
21
W40
1AN
TEN
NA
W40
1AN
TEN
NA
1
L417
601s
L417
601s
L411
0.56
uHL4
110.
56uH
D10
2H
VC35
0BD
102
HVC
350B
21
C50
8
0.01
u
C50
8
0.01
u
C44
747
0pC
447
470p
SAW
F501
HD
F455
ASA
WF5
01H
DF4
55A
1
2
3
4
C14
110
00p
C14
110
00p
D40
1H
VU13
1D
401
HVU
131
12
C51
40.
01u
C51
40.
01u
C40
547
0pC
405
470p
D50
4H
VC13
1D
504
HVC
131
21
L103
3.3u
HL1
033.
3uH
R51
310
0nH
R51
310
0nH
C13
50.
1uC
135
0.1u
C50
647
0pC
506
470p
C14
510
00p
C14
510
00p
L101
601s
L101
601s
Q40
22S
K307
8Q
402
2SK3
078
1
3 2
L504
15nH
L504
15nH
L113
601s
L113
601s
C42
710
00p
C42
710
00p
C43
04.
7pC
430
4.7p
R42
1
0.39
R42
1
0.39
C11
02.
2pC
110
2.2p
C51
30.
01u
C51
30.
01u
C42
510
00p
C42
510
00p
R51
24.
7kR
512
4.7k
R42
0
0.39
R42
0
0.39
C44
047
0pC
440
470p
C51
0
0.01
u
C51
0
0.01
u
R42
910R
429
10
L413
4TL413
4T
C14
747
0pC
147
470p
C10
710
pC
107
10p
C42
447
0pC
424
470p
R42
6
150k
(1%
)
R42
6
150k
(1%
)
C41
410
pC
414
10p
L412
4TL412
4T
L106
601s
L106
601s
C13
8
0.01
u
C13
8
0.01
uR
123
47R12
347
5 5
4 4
3 3
2 2
1 1
DD
CC
BB
AA
V_B
AT
VCC
VDD
VCC
VT
VR
V_S
AV
E
V_B
AT
VCC
V_B
AT
VDD
V_B
AT
VCC
VCC
VCC
VDD
VDD
BU
SY
DA
TA
QT_
OU
T
CK
STBMO
D
AF
RFC
MIC
out
MIC
out
LD
AP
C
R/TQT_
MO
D
QT_
MO
D
MIC
VO
X
VO
X
MIC
VS
AV
E
TC-320U1(
400-420MHz)
原理
图 MCU&POWER
R20
71kR20
71k
C20
3
1uC20
3
1u
R21
747
kR
217
47k
C63
815
pC
638
15p
R60
222
0k(1
%)
R60
222
0k(1
%)
C64
810
00p
C64
810
00p
C63
647
0pC
636
470p
C60
91uC60
91u
C64
010
00p
C64
010
00p
Q20
12S
A18
32Q
201
2SA
1832
1
23
R20
33.
3kR
203
3.3k
R60
322
0k(1
%)
R60
322
0k(1
%)
C31
60.
1uC
316
0.1u
C64
20.
022u
C64
20.
022u
C21
70.
1uC
217
0.1u
C30
40.
1uC
304
0.1u
C21
910
00P
C21
910
00P
C62
247
0pC
622
470p
C62
447
0pC
624
470p
U60
6M
C34
673
U60
6M
C34
673 VIN
1P
PR
2C
HG
3E
N4
GN
D5
FAS
T6
ISE
T7
BA
T8
EPAD 9
C30
54.
7u/1
0VC
305
4.7u
/10V
C61
01uC61
01u
R21
81MR
218
1M
L602
601s
L602
601s
U60
2R
T901
1J6
U60
2R
T901
1J6
VO
UT2
1G
ND
2E
N2
3E
N1
4V
IN5
VO
UT1
6
C31
447
pC
314
47p
C65
40.
1uC
654
0.1u
C60
30.
1uC
603
0.1u
C64
747
00p
C64
747
00p
J202
MIC
1J2
02M
IC1
15 24 3
R64
51k
R64
51k
C65
60.
01u
C65
60.
01u
R22
30R
223
0
R21
910
kR
219
10k
C62
347
0pC
623
470p
R64
268
kR
642
68k
C65
747
0pC
657
470p
C61
410
0pC
614
100p
L607
600s
L607
600s
R63
268
KR
632
68K
R63
847
kR
638
47k
Q20
22S
K18
24Q
202
2SK
1824
2
3 1
C62
71uC62
71u
R20
86.
8kR
208
6.8k
C20
447
00P
C20
447
00P
U60
1
SR
T321
0
U60
1
SR
T321
0
12345
TXDRXD
APA_ENSAVE
EXT MICEXT PTT
RLEDGLED
1415
VSSDVDDD
V+V_20
ON/OFF
VD
D_C
LDA
F_O
UT
VS
S_C
LDA
F_O
UTM
VD
D_C
LD1
RFC
AP
CV
RE
FQ
T_O
UT
VO
XV
SS
AV
DD
A38 S
QL
BA
TX
TAL0
XTA
L1P
LL_C
AP
44 45 46 47 48 49 50
51525354555657585960EN0EN1EN2EN365666768697071727374757677787980
PO
WE
R82S
CL
SD
ALDD
ATAC
KS
TBV
SS
D1
VD
DD
1R
/TTX
_CTL
RE
SE
TV
SS
A1
VD
DA
1B
G_R
EF
MIC
IND
EM
OD
MO
D_O
UT
100
MONPTT
2425
C63
70.
01u
C63
70.
01u
U60
5R
3112
Q27
1AU
605
R31
12Q
271A
VD
D1
GN
D2
CD
3O
UT
4
R61
31KR
613
1K
R20
64.
7kR
206
4.7k
C60
147
0pC
601
470p
R20
43.
3kR
204
3.3k
D60
8E
DZ6
.8B
D60
8E
DZ6
.8B 1
2
C61
610
00p
C61
610
00p
U30
1A
P48
90U
301
AP
4890
SH
UTD
OW
N1
BY
PA
SS
2
+IN
3-IN
4V
O1
5
VD
D6
GN
D7
VO
28
R62
447
kR
624
47k
B20
1M
ICB
201
MIC
+1
-2
R62
6N
CR
626
NC
R20
22.
2KR
202
2.2K
1 CC
428S
W60
6S
W_c
hann
el
1 CC
428S
W60
6S
W_c
hann
el
1 2 3456
Q60
12S
A17
45Q
601
2SA
1745
1
23
C22
00.
1uC
220
0.1u
C64
147
0pC
641
470p
C61
710
00p
C61
710
00p
R30
84.
7R
308
4.7
R60
947
0R
609
470
R61
747
kR
617
47k
R62
568
0R
625
680
J201
US
BJ2
01U
SB
1 2 3 4 5
R61
147
kR
611
47k
R63
59.
1KR
635
9.1K
C31
547
pC
315
47p
C60
24.
7u/1
0VC
602
4.7u
/10V
C60
64.
7u/1
0VC
606
4.7u
/10V
Q60
72S
A18
32Q
607
2SA
1832
1
23
C65
30.
22u
C65
30.
22u
C31
30.
1uC
313
0.1u
D60
6N
CD
606
NC
12
C61
910
00p
C61
910
00p
C61
51uC
615
1u
C64
447
0pC
644
470p
R60
715
KR
607
15K
C64
34.
7u/1
0VC
643
4.7u
/10V
R60
510
0R
605
100
Q60
82S
C53
43E
Q60
82S
C53
43E
1
3 2
R61
847R61
847
C64
50.
01u
C64
50.
01u
C62
010
00p
C62
010
00p
R62
310
0R
623
100
C63
915
pC
639
15p
U60
3A
T24C
16U
603
AT2
4C16
1234DAT
CLK78
C64
90.
22u
C64
90.
22u
R62
8N
CR
628
NC
L605
601s
L605
601s
C62
81uC
628
1u
R31
110R
311
10
R63
447
0R
634
470
R21
310
0kR
213
100k
UP
SW
604
UP
SW
604
12
C63
147
0pC
631
470p
R63
61.
2KR
636
1.2K
D60
5
RS
A6.
1EN
D60
5
RS
A6.
1EN
4
5
3
1
2
Q60
4D
TC11
4EE
Q60
4D
TC11
4EE
3 1
2
C61
310
00p
C61
310
00p
D30
1E
DZ6
.8B
D30
1E
DZ6
.8B
12
C20
64.
7u/1
0VC
206
4.7u
/10V
R61
047
kR
610
47k
C65
0
NCC65
0
NC
C61
147
0pC
611
470p
C20
947
0pC
209
470p
R61
52.
2kR
615
2.2k
C61
82.
2uC
618
2.2u
D60
1
GR
EE
N/K
PT-
1608
SG
C
D60
1
GR
EE
N/K
PT-
1608
SG
C
12
L202
601s
L202
601s
SW
601
ON
/OFF
SW
601
ON
/OFF
12
3
D60
9N
CD
609
NC
12
R62
24.
7kR
622
4.7k
R63
71kR
637
1k
L603
601s
L603
601s
Q60
5D
TC11
4EE
Q60
5D
TC11
4EE
3 1
2
C62
11uC
621
1u
C65
547
0PC
655
470P
R60
84.
7kR
608
4.7k
D603GREEN/KPT-1608SGC
D603GREEN/KPT-1608SGC
12
TP20
2S
P1
TP20
2S
P1
C63
347
0pC
633
470p
X60
1
32.7
68K
X60
1
32.7
68K
D61
0E
DZ6
.8B
D61
0E
DZ6
.8B
12
R63
922R
639
22
C60
810
00P
C60
810
00P
D60
2R
ED
/KP
T-16
08S
UR
CD
602
RE
D/K
PT-
1608
SU
RC
12
C21
80.
1uC
218
0.1u
G60
13.
8VG
601
3.8V
C63
50.
01u
C63
50.
01u
D20
1N
CD
201
NC
12
R64
01kR
640
1k
C61
20.
01u
C61
20.
01u
C31
1
0.1u
C31
1
0.1u
C30
2
0.47
u
C30
2
0.47
u
R22
412
kR
224
12k
C20
71uC
207
1u
R61
947R61
947
Q60
22S
A17
45Q
602
2SA
1745
1
23
C20
80.
22u
C20
80.
22u
R30
91kR
309
1k
C65
20.
47u
C65
20.
47u
D604RED/KPT-1608SURC
D604RED/KPT-1608SURC
12
R63
33.
9kR
633
3.9k
R62
9N
CR
629
NC
SW
602
MO
NS
W60
2M
ON
1 2
R63
047
kR
630
47k
C60
7
0.01
u
C60
7
0.01
u
C31
2
0.1u
C31
2
0.1u
C20
14.
7u/1
0VC
201
4.7u
/10V
R20
147
0R
201
470
R60
410
0R
604
100
C60
510
00P
C60
510
00P
TP60
8R
XD
TP60
8R
XD
L201
1uH
L201
1uH
R21
41kR
214
1k
R62
110
0R
621
100
C63
01uC
630
1uC
303
NC
C30
3N
C
R62
047
kR
620
47k
VR
601
NC
VR
601
NC
13
2
C62
647
0pC
626
470p
C65
110
00p
C65
110
00p
C60
410
00P
C60
410
00P
DO
WN
SW
605
DO
WN
SW
605
12
C63
247
0pC
632
470p
R31
04.
7R
310
4.7
D60
7E
DZ6
.8B
D60
7E
DZ6
.8B
12
C63
41uC
634
1u
L601
600s
gL6
0160
0sg
R21
522
kR
215
22k
C64
60.
01u
C64
60.
01u
R64
347
kR
643
47k
D61
2R
B70
6F-4
0D
612
RB
706F
-40
1 23
R61
410
0R
614
100
R30
268
KR
302
68K
R62
7N
CR
627
NC
SW
603
PTT
SW
603
PTT
12
R63
147
kR
631
47k
R64
12.
2KR
641
2.2K
R61
647
kR
616
47k
C20
210
0PC
202
100P
R30
110
kR
301
10k
R60
63.
9kR
606
3.9k
TP60
9TX
DTP
609
TXD
TP20
3S
P2
TP20
3S
P2
R61
247
kR
612
47k
C21
610
00p
C21
610
00p
C62
910
0pC
629
100p
R20
547
kR
205
47k
R21
62.
2kR
216
2.2k
L606
601s
L606
601s
C62
5
470p
C62
5
470p
5 5
4 4
3 3
2 2
1 1
DD
CC
BB
AA
VDD
VDD
VR
VR
VR
VR
LD
VSAV
E
STB
CK
DAT
A
RF-
IN
QT_
OU
T
VCO
-IN
CP
AFBUSY
LO
TC-320U1(
400-420MHz)
原理
图 PLL&IF
L109
601s
L109
601s
VR10
110
kVR
101
10k
13
2
L516
22nH
L516
22nH
L511
15nH
L511
15nH
C54
80.
47U
C54
80.
47U
L114
22nH
L114
22nH
R12
010
0kR
120
100k
R52
682
R52
682
RN
101
1kR
N10
11k
1 2 3 45678
L514
10nH
L514
10nH
C45
047
0pC
450
470p
Q50
3AT
-415
11Q
503
AT-4
1511
1
24
3
C54
947
00p
C54
947
00p
R50
627
0R
506
270
C55
1N
CC
551
NC
C44
810
pC
448
10p
C53
2N
CC
532
NC
C52
247
0pC
522
470p
R10
322
kR
103
22k
C56
147
00p
C56
147
00p
U10
1M
B15E
03SL
U10
1M
B15E
03SL
OSC
OU
T1
Vp2
Vcc
3D
o4
GN
D5
Xfin
6fin
7C
lock
8D
ata
9LE
10PS
11ZC
12LD
/fout
13Φ
P14
ΦR
15O
SCIN
16
C52
447
0pC
524
470p
C53
910
00P
C53
910
00P
C56
310
00p
C56
310
00p
R52
31.
2KR
523
1.2K
C53
40.
3pC
534
0.3p
C53
70.
1UC
537
0.1U
L503
33nH
L503
33nH
C44
92p
C44
92p
Q50
52S
C42
26Q
505
2SC
4226
2
3 1
R52
812
kR
528
12k
C55
20.
01u
C55
20.
01u
C10
410
pC
104
10p
VCC
OUT
VCONT
GND
XT10
121
.25M
Hz
VCC
OUT
VCONT
GND
XT10
121
.25M
Hz
1
23
4
C45
15p
C45
15p
C21
510
00P
C21
510
00P
C11
910
0pC
119
100p
R50
347
0R
503
470
Q50
62S
C42
26Q
506
2SC
4226
2
3 1
R51
610R
516
10
C45
210
pC
452
10p
C51
810
00P
C51
810
00P
R51
80R
518
0
R53
010R
530
10
R51
747
0kR
517
470k
L507
NC
L507
NC
C52
71PC
527
1P
R52
96.
8kR
529
6.8k
C12
610
00p
C12
610
00p
C53
882
pC
538
82p
R10
268
kR
102
68k
L115
0L115
0
C52
633
pC
526
33p
L510
0L510
0
C12
010
00p
C12
010
00p
R50
82.
2kR
508
2.2k
C53
1N
CC
531
NC
C54
51pC
545
1p
C55
347
0pC
553
470p
C53
60.
1UC
536
0.1U
C51
90.
1uC
519
0.1u
L108
601s
L108
601s
C54
3N
CC
543
NC
C52
80.
1uC
528
0.1u
C12
510
0pC
125
100p
C52
310
0PC
523
100P
R12
533
kR
125
33k
R10
110R10
110
C12
30.
1uC
123
0.1u
L517
100n
HL5
1710
0nH
L110
1uH
L110
1uH
R12
127
KR
121
27K
C10
310
pC
103
10p
U60
8M
C33
61BP
U60
8M
C33
61BP
OSC
I1
OSC
O2
MIX
O3
VCC
4IF
I5
DEC
6IF
O7
QU
AD8
AFO
UT
9FI
LI10
FILO
11R
SSI
12N
-DET
13N
-REC
14G
ND
15M
IXI
16
L509
2.2U
HL5
092.
2UH
R52
70RR
527
0R
C12
410
0pC
124
100p
L107
601s
L107
601s
L508
10nH
L508
10nH
R53
63.
3kR
536
3.3k
R53
43.
3kR
534
3.3k
C54
00.
01u
C54
00.
01u
R10
41kR10
41k
C12
710
0pC
127
100p
D20
2N
CD
202
NC
12
L512
NC
L512
NC
CD
501
JTBM
450C
24C
D50
1JT
BM45
0C24
12
R50
527
0R
505
270
XF50
121
.7M
Hz
XF50
121
.7M
Hz
21
3
C50
718
0PC
507
180P
C54
71uC54
71u
R51
568
0R
515
680
R52
54.
7KR
525
4.7K
R53
5N
CR
535
NC
R10
810R
108
10
C54
124
PC
541
24P
C13
210
u/6.
3VC
132
10u/
6.3V
C56
00.
1uC
560
0.1u
C54
415
pC
544
15p
C55
447
00p
C55
447
00p
C51
727
PC
517
27P
C54
2N
CC
542
NC
C11
110
00p
C11
110
00p
C55
810
00p
C55
810
00p
C12
84.
7u/1
0VC
128
4.7u
/10V
C52
5N
CC
525
NC
C10
210
00p
C10
210
00p
C53
010
PC
530
10P
R51
9
470K
R51
9
470K
R50
410
0kR
504
100k
C12
110
0pC
121
100p
C55
90.
01U
C55
90.
01U
R52
46.
8kR
524
6.8k
R50
22.
2kR
502
2.2k
C54
60.
1uC
546
0.1u
C55
0
0.02
2U
C55
0
0.02
2U
C55
70.
1uC
557
0.1u
D61
9R
B706
F-40
D61
9R
B706
F-40 12
3
C52
00.
1uC
520
0.1u
R50
72.
2kR
507
2.2k
SAW
F503
HD
F460
ESA
WF5
03H
DF4
60E
1
2
3
4
C55
610
pC
556
10p
C11
810
pC
118
10p
CF5
01AL
FYM
450F
(6.0
K)C
F501
ALFY
M45
0F(6
.0K)
21
3
5
4
Q61
1BC
847A
W/P
LPQ
611
BC84
7AW
/PLP
C55
50.
1UC
555
0.1U
R50
168
0KR
501
680K
C56
247
0pC
562
470p
5 5
4 4
3 3
2 2
1 1
DD
CC
BB
AA
V_B
AT
VT
VR
V_SA
VE
V_SA
VE
R/T
MO
D
RFC
RF-
IN
CP
VCO
-IN
APC
LO
TC-320U2(
450-470MHz)
原理
图 RF
R11
24.
7kR
112
4.7k
R51
14.
7kR
511
4.7k
Q40
5D
TC11
4EE
Q40
5D
TC11
4EE
3 1
2
R41
127
kR
411
27k
C42
20.
1uC
422
0.1u
R12
768
kR
127
68k
C51
210
0pC
512
100p
C43
910
pC
439
10p
C42
647
0pC
426
470p
D10
1H
VC35
0BD
101
HVC
350B
2 1
L105
0L105
0
C44
547
0pC
445
470p
R41
047R
410
47
C41
539
pC
415
39p
R43
08.
2KR43
08.
2K
R11
810
kR
118
10k
R12
656
0R
126
560
C14
60.
1uC
146
0.1u
R41
40
R41
40
C43
11.
5pC
431
1.5p
L414
4TL414
4T
R40
827
kR
408
27k
R41
310
KR
413
10K
L409
5TL409
5T
C43
80.
1uC
438
0.1u
D10
4BA
S16X
V2T1
GD
104
BAS1
6XV2
T1G 1 2
C51
515
nC
515
15n
R11
310
0kR
113
100k
R40
78.
2kR
407
8.2k
TC10
1
10p
TC10
1
10p
1 2
SAW
F502
HD
F465
ASA
WF5
02H
DF4
65A
1
2
3
4Q
103
DTC
114E
EQ
103
DTC
114E
E3 1
2
C50
447
0pC
504
470p
R43
310
0KR
433
100K
TP10
0C
VTP
100
CV 1
C11
40.
1uC
114
0.1u
C42
01u
/10V
C42
01u
/10V
C15
110
PC
151
10P
R42
7
100k
(1%
)
R42
7
100k
(1%
)
L112
18nH
L112
18nH
C43
32pC43
32p
C44
347
0pC
443
470p
D40
3ED
Z6.8
BD
403
EDZ6
.8B
12
R41
810
0R
418
100
C43
43pC
434
3p
C14
85.
6pC
148
5.6p
C13
310
00p
C13
310
00p
C45
9N
CC
459
NC
D40
2ED
Z6.8
BD
402
EDZ6
.8B 1
2
C40
347
0PC
403
470P
C50
9
470P
C50
9
470P
R40
23.
3kR
402
3.3k
C13
40.
1uC
134
0.1u
C13
02.
7pC
130
2.7p
Q40
3R
D07
MU
S2B
Q40
3R
D07
MU
S2B
1
3 2
L407
221s
L407
221s
Q10
42S
C51
08Q
104
2SC
5108
13 2
D61
6
HVC
131
D61
6
HVC
131
21
C45
322
PC
453
22P
R11
527
0R
115
270
R11
77.
5kR
117
7.5k
L408
5.6n
HL4
085.
6nH
TP50
5AN
TGTP
505
ANTG 1
R42
315
0k(1
%)
R42
315
0k(1
%)
L415
1uH
L415
1uH
Q40
4D
TA11
4YE
Q40
4D
TA11
4YE 3
1
2
C41
310
00p
C41
310
00p
C41
710
00p
C41
710
00p
C50
22pC
502
2p
C10
90.
5pC
109
0.5p
R41
747
kR
417
47k
C15
210
0pC
152
100p
-+
+-
U40
1N
JM29
04
-+
+-
U40
1N
JM29
04
1 3 42
578 6
R40
51MR40
51M
C42
82pC42
82p
D50
8H
SM88
ASTL
D50
8H
SM88
ASTL
R41
218
kR
412
18k
D50
11S
S356
D50
11S
S356
1 2
R11
02.
2kR
110
2.2k
C11
60.
1uC
116
0.1u
C44
10.
1uC
441
0.1u
C41
912
pC
419
12p
R11
910R
119
10
R41
9
0.39
R41
9
0.39
D10
5
HVC
131
D10
5
HVC
131
2 1
R50
910
0nH
R50
910
0nH
R42
410
0k(1
%)
R42
410
0k(1
%)
L111
22nH
L111
22nH
R40
34.
7R
403
4.7
R11
147R
111
47
C11
710
0pC
117
100p
Q10
2PR
F957
Q10
2PR
F957
23
1
C43
22.
4pC
432
2.4p
C11
28pC11
28p
L410
600s
gL4
1060
0sg
D50
5H
VC13
1D
505
HVC
131
21
C44
447
0pC
444
470p
R42
515
0k(1
%)
R42
515
0k(1
%)
C13
110
0pC
131
100p
D10
3BB
179
D10
3BB
179
21C
401
5pC40
15p
R11
610
kR
116
10k
C43
70.
01u
C43
70.
01u
R10
647
kR
106
47k
C40
447
pC
404
47p
C41
047
0pC
410
470p
D61
7H
VC13
1D
617
HVC
131
21
C41
647
0pC
416
470p
L406
5TL406
5T
R10
91kR
109
1k
L405
4.7n
HL4
054.
7nH
C41
147
0PC
411
470P
R51
010
0nH
R51
010
0nH
C42
33pC42
33p
C42
9N
CC
429
NC
C11
51.
5u/1
6VC
115
1.5u
/16V
C41
847
pC
418
47p
C41
2
1000
p
C41
2
1000
p
R43
44.
7KR43
44.
7K
C14
04.
7u/1
0VC
140
4.7u
/10V
L501
4TL501
4T
C14
40.
5pC
144
0.5p
L102
3.3u
HL1
023.
3uH
R40
615
kR
406
15k
Q50
2D
TA11
4YE
Q50
2D
TA11
4YE 3
1
2
R40
910
kR
409
10k
C43
60.
1uC
436
0.1u
R11
41.
8kR
114
1.8k
L513
4.7n
HL5
134.
7nH
C14
247
0pC
142
470p
C51
1N
CC
511
NC
R10
710
kR
107
10k
C51
610
0pC
516
100p
C42
112
pC
421
12p
L404
22nH
L404
22nH
R43
13.
9KR43
13.
9K
R41
61kR
416
1k
L104
23nH
L104
23nH
C15
010
0pC
150
100p
Q10
12S
C53
43E
Q10
12S
C53
43E
1
32
R42
810
kR
428
10k
D50
2H
VC13
1D
502
HVC
131
21
Q40
62S
C42
26Q
406
2SC
4226
2
3 1
R12
468
kR
124
68k
L401
22nH
L401
22nH
R51
410
0nH
R51
410
0nH
R40
433
0R
404
330
C44
647
0pC
446
470p
L417
601s
L417
601s
W40
1AN
TEN
NA
W40
1AN
TEN
NA
1
D50
3H
VC13
1D
503
HVC
131
21
Q50
1D
TC11
4EE
Q50
1D
TC11
4EE
3 1
2
C40
9N
CC
409
NC
L416
NC
L416
NC
Q10
52S
C51
08Q
105
2SC
5108
1
3 2
C10
510
00p
C10
510
00p
R40
13.
3kR
401
3.3k
R41
547R
415
47
Q40
12S
C42
26Q
401
2SC
4226
2
3 1
C44
24.
7u/1
0VC
442
4.7u
/10V
R42
215
0k(1
%)
R42
215
0k(1
%)
C13
9
1000
p
C13
9
1000
p
C50
13pC50
13p
C10
612
pC
106
12p
L101
601s
L101
601s
C14
510
00p
C14
510
00p
C50
647
0pC
506
470p
C13
50.
1uC
135
0.1u
R51
310
0nH
R51
310
0nH
L103
3.3u
HL1
033.
3uH
D50
4H
VC13
1D
504
HVC
131
21
C40
547
0pC
405
470p
C51
40.
01u
C51
40.
01u
D40
1H
VU13
1D
401
HVU
131
12
C14
110
00p
C14
110
00p
SAW
F501
HD
F455
ASA
WF5
01H
DF4
55A
1
2
3
4
C44
747
0pC
447
470p
C50
8
0.01
u
C50
8
0.01
u
D10
2H
VC35
0BD
102
HVC
350B
21
L411
0.56
uHL4
110.
56uH
C11
02pC
110
2p
R42
1
0.39
R42
1
0.39
C43
04.
7pC
430
4.7p
C42
710
00p
C42
710
00p
L113
601s
L113
601s
L504
15nH
L504
15nH
Q40
22S
K307
8Q
402
2SK3
078
1
3 2
R42
6
150k
(1%
)
R42
6
150k
(1%
)
C42
447
0pC
424
470p
C10
710
pC
107
10p
C14
747
0pC
147
470p
L413
4TL413
4T
R42
910R
429
10C
510
0.01
u
C51
0
0.01
u
C44
047
0pC
440
470p
R42
0
0.39
R42
0
0.39
R51
24.
7kR
512
4.7k
C42
510
00p
C42
510
00p
C51
30.
01u
C51
30.
01u
R12
347R
123
47
C13
8
0.01
u
C13
8
0.01
u
L106
601s
L106
601s
L412
4TL412
4T
C41
410
pC
414
10p
5 5
4 4
3 3
2 2
1 1
DD
CC
BB
AA
V_B
AT
VCC
VDD
VCC
VT
VR
V_S
AV
E
V_B
AT
VCC
V_B
AT
VDD
V_B
AT
VCC
VCC
VCC
VDD
VDD
BU
SY
DA
TA
QT_
OU
T
CK
STBMO
D
AF
RFC
MIC
out
MIC
out
LD
AP
C
R/TQT_
MO
D
QT_
MO
D
MIC
VO
X
VO
X
MIC
VS
AV
E
TC-320U2(
450-470MHz)
原理
图 MCU&POWER
C21
910
00P
C21
910
00P
C30
40.
1uC
304
0.1u
C21
70.
1uC
217
0.1u
C64
20.
022u
C64
20.
022u
C31
60.
033u
C31
60.
033u
R60
322
0k(1
%)
R60
322
0k(1
%)
R20
33.
3kR
203
3.3k
Q20
12S
A18
32Q
201
2SA
1832
1
23
C64
010
00p
C64
010
00p
C60
91uC60
91u
C63
647
0pC
636
470p
C64
810
00p
C64
810
00p
R60
222
0k(1
%)
R60
222
0k(1
%)
C63
815
pC
638
15p
R21
747
kR
217
47k
C20
3
1uC20
3
1u
R20
71kR20
71k
C60
30.
1uC
603
0.1u
C65
40.
1uC
654
0.1u
C31
447
pC
314
47p
U60
2R
T901
1J6
U60
2R
T901
1J6
VO
UT2
1G
ND
2E
N2
3E
N1
4V
IN5
VO
UT1
6
L602
601s
L602
601s
R21
81MR
218
1M
C61
01uC61
01u
C30
54.
7u/1
0VC
305
4.7u
/10V
U60
6M
C34
673
U60
6M
C34
673 VIN
1P
PR
2C
HG
3E
N4
GN
D5
FAS
T6
ISE
T7
BA
T8
EPAD 9
C62
447
0pC
624
470p
C62
247
0pC
622
470p
R64
268
kR
642
68k
C62
347
0pC
623
470p
R21
910
kR
219
10k
R22
30R
223
0
C65
60.
01u
C65
60.
01u
R64
556
0R
645
560
J202
MIC
1J2
02M
IC1
15 24 3
C64
747
00p
C64
747
00p
C62
71uC62
71u
Q20
22S
K18
24Q
202
2SK
1824
2
3 1
R63
847
kR
638
47k
R63
282
KR
632
82K
L607
600s
L607
600s
C61
410
0pC
614
100p
C65
747
0pC
657
470p
R20
43.
3kR
204
3.3k
C60
147
0pC
601
470p
R20
64.
7kR
206
4.7k
R61
31KR
613
1K
U60
5R
3112
Q27
1AU
605
R31
12Q
271A
VD
D1
GN
D2
CD
3O
UT
4
C63
70.
01u
C63
70.
01u
U60
1
SR
T321
0
U60
1
SR
T321
0
12345
TXDRXD
APA_ENSAVE
EXT MICEXT PTT
RLEDGLED
1415
VSSDVDDD
V+V_20
ON/OFF
VD
D_C
LDA
F_O
UT
VS
S_C
LDA
F_O
UTM
VD
D_C
LD1
RFC
AP
CV
RE
FQ
T_O
UT
VO
XV
SS
AV
DD
A38 S
QL
BA
TX
TAL0
XTA
L1P
LL_C
AP
44 45 46 47 48 49 50
51525354555657585960EN0EN1EN2EN365666768697071727374757677787980P
OW
ER82
SC
LS
DALD
DA
TACK
STB
VS
SD
1V
DD
D1
R/T
TX_C
TLR
ES
ET
VS
SA
1V
DD
A1
BG
_RE
FM
ICIN
DE
MO
DM
OD
_OU
T10
0
MONPTT
2425
C20
447
00P
C20
447
00P
R20
86.
8kR
208
6.8k
R30
84.
7R
308
4.7
C61
710
00p
C61
710
00p
C64
147
0pC
641
470p
C22
00.
1uC
220
0.1u
Q60
12S
A17
45Q
601
2SA
1745
1
23
1 CC
428S
W60
6S
W_c
hann
el
1 CC
428S
W60
6S
W_c
hann
el
1 2 3456
R20
22.
2KR
202
2.2K
R62
6N
CR
626
NC
B20
1M
ICB
201
MIC
+1
-2
R62
447
kR
624
47k
U30
1A
P48
90U
301
AP
4890
SH
UTD
OW
N1
BY
PA
SS
2
+IN
3-IN
4V
O1
5
VD
D6
GN
D7
VO
28
C61
610
00p
C61
610
00p
D60
8E
DZ6
.8B
D60
8E
DZ6
.8B 1
2
Q60
72S
A18
32Q
607
2SA
1832
1
23
C60
64.
7u/1
0VC
606
4.7u
/10V
C60
24.
7u/1
0VC
602
4.7u
/10V
C31
547
pC
315
47p
R63
58.
2KR
635
8.2K
R61
147
kR
611
47k
J201
US
BJ2
01U
SB
1 2 3 4 5
R62
568
0R
625
680
R61
747
kR
617
47k
R60
947
0R
609
470
R62
310
0R
623
100
C62
010
00p
C62
010
00p
C64
50.
01u
C64
50.
01u
R61
847R61
847
Q60
82S
C53
43E
Q60
82S
C53
43E
1
3 2
R60
510
0R
605
100
C64
34.
7u/1
0VC
643
4.7u
/10V
R60
715
KR
607
15K
C64
447
0pC
644
470p
C61
51uC
615
1u
C61
910
00p
C61
910
00p
D60
6N
CD
606
NC
12
C31
30.
1uC
313
0.1u
C65
30.
22u
C65
30.
22u
C63
147
0pC
631
470p
UP
SW
604
UP
SW
604
12
R21
310
0kR
213
100k
R63
447
0R
634
470
R31
110R
311
10
C62
81uC
628
1u
L605
601s
L605
601s
R62
8N
CR
628
NC
C64
90.
22u
C64
90.
22u
U60
3A
T24C
16U
603
AT2
4C16
1234DAT
CLK78
C63
915
pC
639
15p
R61
52.
2kR
615
2.2k
C20
947
0pC
209
470p
C61
147
0pC
611
470p
C65
0
NCC65
0
NC
R61
047
kR
610
47k
C20
64.
7u/1
0VC
206
4.7u
/10V
D30
1E
DZ6
.8B
D30
1E
DZ6
.8B
12
C61
310
00p
C61
310
00p
Q60
4D
TC11
4EE
Q60
4D
TC11
4EE
3 1
2
D60
5
RS
A6.
1EN
D60
5
RS
A6.
1EN
4
5
3
1
2
R63
61.
2KR
636
1.2K
TP20
2S
P1
TP20
2S
P1
D603GREEN/KPT-1608SGC
D603GREEN/KPT-1608SGC
12
R60
84.
7kR
608
4.7k
C65
547
0PC
655
470P
C62
11uC
621
1u
Q60
5D
TC11
4EE
Q60
5D
TC11
4EE
3 1
2
L603
601s
L603
601s
R63
71kR
637
1kR
622
4.7k
R62
24.
7k
D60
9N
CD
609
NC
12
SW
601
ON
/OFF
SW
601
ON
/OFF
12
3
L202
601s
L202
601s
D60
1
GR
EE
N/K
PT-
1608
SG
C
D60
1
GR
EE
N/K
PT-
1608
SG
C
12
C61
82.
2uC
618
2.2u
C61
20.
01u
C61
20.
01u
R64
01kR
640
1k
D20
1N
CD
201
NC
12
C63
50.
01u
C63
50.
01u
G60
13.
8VG
601
3.8V
C21
80.
1uC
218
0.1u
D60
2R
ED
/KP
T-16
08S
UR
CD
602
RE
D/K
PT-
1608
SU
RC
12
C60
810
00P
C60
810
00P
R63
922R
639
22
D61
0E
DZ6
.8B
D61
0E
DZ6
.8B
12
X60
1
32.7
68K
X60
1
32.7
68K
C63
347
0pC
633
470p
C65
20.
47u
C65
20.
47u
R30
91kR
309
1k
C20
80.
22u
C20
80.
22u
Q60
22S
A17
45Q
602
2SA
1745
1
23
R61
947R61
947
C20
70.
1uC
207
0.1u
R22
412
kR
224
12k
C30
2
0.47
u
C30
2
0.47
u
C31
10.
1uC
311
0.1u
C20
14.
7u/1
0VC
201
4.7u
/10V
C31
20.
1uC
312
0.1u
C60
7
0.01
u
C60
7
0.01
u
R63
047
kR
630
47k
SW
602
MO
NS
W60
2M
ON
1 2
R62
9N
CR
629
NC
R63
33.
9kR
633
3.9k
D604RED/KPT-1608SURC
D604RED/KPT-1608SURC
12
C65
110
00p
C65
110
00p
C62
647
0pC
626
470p
VR
601
NC
VR
601
NC
13
2
R62
047
kR
620
47k
C30
3N
CC
303
NC
C63
01uC
630
1u
R62
110
0R
621
100
R21
41kR
214
1k
L201
1uH
L201
1uH
TP60
8R
XD
TP60
8R
XD
C60
510
00P
C60
510
00P
R60
410
0R
604
100
R20
147
0R
201
470
R62
7N
CR
627
NC
R30
268
KR
302
68K
R61
410
0R
614
100
D61
2R
B70
6F-4
0D
612
RB
706F
-40
1 23
R64
347
kR
643
47k
C64
60.
01u
C64
60.
01u
R21
522
kR
215
22k
L601
600s
gL6
0160
0sg
C63
41uC
634
1u
D60
7E
DZ6
.8B
D60
7E
DZ6
.8B
12
R31
04.
7R
310
4.7
C63
247
0pC
632
470p
DO
WN
SW
605
DO
WN
SW
605
12
C60
410
00P
C60
410
00P
C62
547
0pC
625
470p
L606
601s
L606
601s
R21
62.
2kR
216
2.2k
R20
547
kR
205
47k
C62
910
0pC
629
100p
C21
610
00p
C21
610
00p
R61
247
kR
612
47k
TP20
3S
P2
TP20
3S
P2
TP60
9TX
DTP
609
TXD
R60
63.
9kR
606
3.9k
R30
110
kR
301
10k
C20
210
0PC
202
100P
R61
647
kR
616
47k
R64
12KR
641
2K
R63
147
kR
631
47k
SW
603
PTT
SW
603
PTT
12
5 5
4 4
3 3
2 2
1 1
DD
CC
BB
AA
VDD
VDD
VR
VR
VR
VR
LD
VSAV
E
STB
CK
DAT
A
RF-
IN
QT_
OU
T
VCO
-IN
CP
AFBUSY
LO
TC-320U2(
450-470MHz)
原理
图 PLL&IF
RN
101
1kR
N10
11k
1 2 3 45678
R52
682
R52
682
R12
010
0kR
120
100k
L114
22nH
L114
22nH
C54
81UC
548
1U
L511
18nH
L511
18nH
L516
39nH
L516
39nH
VR10
110
kVR
101
10k
13
2L1
0960
1sL1
0960
1s
C53
2N
CC
532
NC
C44
810
pC
448
10p
C55
1N
CC
551
NC
R50
627
0R
506
270
C54
947
00p
C54
947
00p
Q50
3AT
-415
11Q
503
AT-4
1511
1
24
3
C45
047
0pC
450
470p
L514
12nH
L514
12nH
C52
447
0pC
524
470p
U10
1M
B15E
03SL
U10
1M
B15E
03SL
OSC
OU
T1
Vp2
Vcc
3D
o4
GN
D5
Xfin
6fin
7C
lock
8D
ata
9LE
10PS
11ZC
12LD
/fout
13Φ
P14
ΦR
15O
SCIN
16
C56
147
00p
C56
147
00p
R10
315
kR
103
15k
C52
247
0pC
522
470p
R52
812
kR
528
12k
Q50
52S
C42
26Q
505
2SC
4226
2
3 1
C44
92p
C44
92p
L503
33nH
L503
33nH
C53
70.
1UC
537
0.1U
C53
40.
3pC
534
0.3p
R52
31.
2KR
523
1.2K
C56
310
00p
C56
310
00p
C53
910
00P
C53
910
00P
R51
610R
516
10
Q50
62S
C42
26Q
506
2SC
4226
2
3 1
R50
347
0R
503
470
C11
910
0pC
119
100p
C21
510
00P
C21
510
00P
C45
15p
C45
15p
VCC
OUT
VCONT
GND
XT10
121
.25M
Hz
VCC
OUT
VCONT
GND
XT10
121
.25M
Hz
1
23
4
C10
410
pC
104
10p
C55
20.
01u
C55
20.
01u
R51
80R
518
0
C51
810
00P
C51
810
00P
C45
210
pC
452
10p
C53
882
pC
538
82p
C12
610
00p
C12
610
00p
R52
96.
8kR
529
6.8k
C52
71PC
527
1PL5
07N
CL5
07N
CR
517
470k
R51
747
0k
R53
010R
530
10
C55
347
0pC
553
470p
C54
51pC
545
1p
C53
1N
CC
531
NC
R50
82.
2kR
508
2.2k
C12
010
00p
C12
010
00p
L510
0L510
0
C52
633
pC
526
33p
L115
0L115
0
R10
268
kR
102
68k
C12
30.
1uC
123
0.1u
R10
110R10
110
R12
533
kR
125
33k
C52
310
0PC
523
100P
C12
510
0pC
125
100p
C52
80.
1uC
528
0.1u
C54
3N
CC
543
NC
L108
601s
L108
601s
C51
90.
1uC
519
0.1u
C53
60.
1UC
536
0.1U
L107
601s
L107
601s
C12
410
0pC
124
100p
R52
70RR
527
0R
L509
2.2U
HL5
092.
2UH
U60
8M
C33
61BP
U60
8M
C33
61BP
OSC
I1
OSC
O2
MIX
O3
VCC
4IF
I5
DEC
6IF
O7
QU
AD8
AFO
UT
9FI
LI10
FILO
11R
SSI
12N
-DET
13N
-REC
14G
ND
15M
IXI
16
C10
310
pC
103
10p
R12
127
KR
121
27K
L110
1uH
L110
1uH
L517
100n
HL5
1710
0nH
XF50
121
.7M
Hz
XF50
121
.7M
Hz
21
3
R50
527
0R
505
270
CD
501
JTBM
450C
24C
D50
1JT
BM45
0C24
12
L512
NC
L512
NC
D20
2N
CD
202
NC
12
C12
710
0pC
127
100p
R10
41kR10
41k
C54
00.
01u
C54
00.
01u
R53
45.
6kR
534
5.6k
R53
65.
6kR
536
5.6k
L508
12nH
L508
12nH
R51
568
0R
515
680
C54
71uC54
71u
C50
718
0PC
507
180P
C54
44.
7pC
544
4.7p
C56
00.
1uC
560
0.1u
C13
210
u/6.
3VC
132
10u/
6.3V
C54
124
PC
541
24P
R10
810R
108
10
R53
5N
CR
535
NC
R52
5N
CR
525
NC
C12
84.
7u/1
0VC
128
4.7u
/10V
C55
810
00p
C55
810
00p
C11
110
00p
C11
110
00p
C54
2N
CC
542
NC
C51
722
PC
517
22P
C55
447
00p
C55
447
00p
C52
5N
CC
525
NC
C55
70.
1uC
557
0.1u
C55
0
0.02
2U
C55
0
0.02
2U
C54
60.
1uC
546
0.1u
R50
22.
2kR
502
2.2k
R52
46.
8kR
524
6.8k
C55
90.
01U
C55
90.
01U
C12
110
0pC
121
100p
R50
410
0kR
504
100k
R51
9
470K
R51
9
470K
C53
015
PC
530
15P
C10
210
00p
C10
210
00p
C56
247
0pC
562
470p
R50
168
0KR
501
680K
C55
50.
1UC
555
0.1U
Q61
1BC
847A
W/P
LPQ
611
BC84
7AW
/PLP
CF5
01AL
FYM
450F
(6.0
K)C
F501
ALFY
M45
0F(6
.0K)
21
3
5
4
C11
810
pC
118
10p
C55
610
pC
556
10p
SAW
F503
HD
F460
ESA
WF5
03H
DF4
60E
1
2
3
4
R50
72.
2kR
507
2.2k
C52
00.
1uC
520
0.1u
D61
9R
B706
F-40
D61
9R
B706
F-40 12
3
TC-320 Service Manual
66
Specifications General Specifications
Frequency Range U1:400-420MHz, U2:450-470MHz
Channel Capacity 16
Channel Spacing 25 KHz /12.5KHz
Operating Voltage 3.8V DC
Battery 1700mAh Li-Ion battery
Battery Life (5-5-90 Duty Cycle) ≥10 hours
Operating Temperature -20~+55
Dimensions (H×W×D) (with standard battery, without antenna) 100mm×48mm×27mm
Weight (with standard antenna & battery) 135g
Frequency Stability ±2.5ppm
Receiver
Sensitivity ≤0.25uV (25KHz)/0.316uV (12.5KHz)
Adjacent Channel Selectivity ≥60dB(W)/≥50dB(N)
Intermodulation ≥55dB
Spurious Response Rejection ≥55dB(W)/≥50dB(N)
Rated Audio Power Output 0.4W (Speaker impedance: 8 ohm)
Rated Audio Distortion ≤5% (0.4W)
Transmitter
RF Power Output 2W/0.5W
Spurious and Harmonics ≤-26dBm
Modulation Limiting ≤5/2.5KHz
TX S/N ≥38dB(W)/≥34dB(N)
Modulation Distortion ≤5%
Note: All Specifications are tested according to TIA/EIA-603, and subject to change without notice due to continuous
development.