sony hcd-gtx88
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1Ver. 1.0 2007. 06
Model Name Using Similar Mechanism NEWCD
CD Mechanism Type CDM74KF-K6BD91UR-WOD//MSection
Optical Pick-up Name KSM-213DCP/C2NPTape Deck Model Name Using Similar Machanism HCD-GN1100DSection
SERVICE MANUAL E ModelAustralian Model
HCD-GTX88
Amplifier sectionBrazil model onlyThe following are measured at
AC 127 V or 220 V, 50/60 Hz
Front/Surround speakerRMS output power: 205 W + 205 W
(at 8 , 1 kHz, 10% THD)SubwooferRMS output power: 130 W + 130 W
(at 6 , 100 Hz, 10% THD)
Other modelsThe following are measured atMexican model: AC 127 V, 60 HzOther models: AC 120, 220, 240 V, 50/60 Hz
Front/Surround speakerPower Output (rated): 175 W + 175 W
(at 8 , 1 kHz, 1% THD)RMS output power (reference):
255 W + 255 W(per channel at 8 , 1 kHz,10% THD)
SubwooferRMS output power (reference):
130 W + 130 W(at 6 , 100 Hz, 10% THD)
SPECIFICATIONSInputsVIDEO (AUDIO IN) L/R:
Voltage 250 mV,impedance 47 kilohms
AUDIO (AUDIO IN) L/R:Voltage 450 mV,impedance 47 kilohms
MIC: Sensitivity 1 mV,impedance 10 kilohms
(USB) port: Type AOutputsPHONES: accepts headphones of
8 ohms or more
Disc player sectionSystem Compact disc and digital
audio systemLaser Semiconductor laser
(=770 810 nm)Emission duration:continuous
Laser Output Max. 44.6 W** This output is the value measured at a distance of 200 mm from the objective lens surface on the Optical Pick-up Block with 7 mm aperture.
Sony CorporationPersonal Audio DivisionPublished by Sony Techno Create Corporation
9-887-753-012007F04-1 2007. 06
Continued on next page
CD DECK RECEIVER
HCD-GTX88 is the tuner, deck,CD and amplifier section inMHC-GTX88.
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2HCD-GTX88
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINEWITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND INTHE PARTS LIST ARE CRITICAL TO SAFE OPERATION.REPLACE THESE COMPONENTS WITH SONY PARTS WHOSEPART NUMBERS APPEAR AS SHOWN IN THIS MANUAL ORIN SUPPLEMENTS PUBLISHED BY SONY.
Frequency response 20 Hz 20 kHzWave length 770 810 nmSignal-to-noise ratio More than 90 dBDynamic range More than 88 dB
Tape deck sectionRecording system 4-track 2-channel stereoFrequency response 50 13,000 Hz (3 dB),
using Sony TYPE I tape
Tuner sectionFM stereo, FM/AM superheterodyne tuner
FM tuner sectionTuning rangeBrazil model: 87.5 108.0 MHz
(100 kHz step)Other models: 87.5 108.0 MHz
(50 kHz step)Antenna FM lead antennaAntenna terminals 75 ohm unbalancedIntermediate frequency 10.7 MHz
AM tuner sectionTuning rangeLatin American and Oceanian models:
530 1,710 kHz (with theinterval set at 10 kHz)531 1,710 kHz (with theinterval set at 9 kHz)
Other models: 531 1,602 kHz (with theinterval set at 9 kHz)530 1,610 kHz (with theinterval set at 10 kHz)
Antenna AM loop antennaAntenna terminals External antenna terminalIntermediate frequency 450 kHz
USB sectionSupported bit rate MP3 (MPEG 1 Audio Layer 3):
32 320 kbps, VBRSampling frequencies MP3 (MPEG 1 Audio Layer 3):
32/44.1/48 kHzTransfer speed Full-SpeedSupported USB device Mass Storage ClassMaximum current 500 mA
GeneralPower requirementsMexican model: 127 V AC, 60 HzBrazil model: 127 V or 220 V AC, 50/60 Hz,
Adjustable with voltageselector
Oceanian model: 230 240 V AC, 50/60 HzArgentina model: 220 V AC, 50/60 HzOther models: 120 V, 220 V or 230 240 V AC,
50/60 Hz, adjustable withvoltage selector
Power consumption 430 W
Dimensions (w/h/d) (Approx.)281 361 417 mm
Mass (Approx.) 14.2 kg
Design and specifications are subject to change withoutnotice.
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3CAUTIONUse of controls or adjustments or performance of proceduresother than those specified herein may result in hazardousradiation exposure.
HCD-GTX88
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCKOR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostaticbreakdown because of the potential difference generated by thecharged electrostatic load, etc. on clothing and the human body.During repair, pay attention to electrostatic break-down and alsouse the procedure in the printed matter which is included in therepair parts.The flexible board is easily damaged and should be handled withcare.
Notes on Chip Component Replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may be
damaged by heat.
Flexible Circuit Board Repairing Keep the temperature of soldering iron around 270C during
repairing. Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times). Be careful not to apply force on the conductor when soldering
or unsoldering.
UNLEADED SOLDERBoards requiring use of unleaded solder are printed with the leadfree mark (LF) indicating the solder contains no lead.(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size)
: LEAD FREE MARKUnleaded solder has the following characteristics. Unleaded solder melts at a temperature about 40 C higher than
ordinary solder.Ordinary soldering irons can be used but the iron tip has to beapplied to the solder joint for a slightly longer time.Soldering irons using a temperature regulator should be set to about350 C.Caution: The printed pattern (copper foil) may peel away if the
heated tip is applied for too long, so be careful! Strong viscosity
Unleaded solder is more viscou-s (sticky, less prone to flow) thanordinary solder so use caution not to let solder bridges occur suchas on IC pins, etc.
Usable with ordinary solderIt is best to use only unleaded solder but unleaded solder may alsobe added to ordinary solder.
This appliance isclaassified as a CLASS 1LASER product. Thislabel is located on therear exterior.
NOTES ON LASER DIODE EMISSION CHECKThe laser beam on this model is concentrated so as to be focused onthe disc reflective surface by the objective lens in the optical pick-up block. Therefore, when checking the laser diode emission,observe from more than 30 cm away from the objective lens.
Laser component in this product is capableof emitting radiation exceeding the limit forClass 1.
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4HCD-GTX88
MODEL IDENTIFICATION
MODEL NUMBER LABEL
MODEL PARTS No.GTX88: E2 3-113-126-0sGTX88: E51 3-198-009-0sGTX88: AUS 3-197-997-0sGTX88: AR 3-198-001-0s
AbbreviationE2 : 120V AC area in E modelE51 : Chilean and Peruvian modelAR : Argentina modelAUS : Australian modelPART No.
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5TABLE OF CONTENTS
HCD-GTX88
1. GENERALGuide to parts and controls ...................................................... 6
2. DISASSEMBLY2-1. Case (Top) ......................................................................... 132-2. Loading Panel .................................................................... 132-3. Tuner Pack ......................................................................... 142-4. CD Block Section .............................................................. 142-5. Front Panel Section ........................................................... 152-6. Tape Mechanism Deck, Mic Board, USB Connector Board ....................................................... 152-7. Panel Board, Function Board, Jog Board .......................... 162-8. CD-SW Board ................................................................... 162-9. Cover (CDM) .................................................................... 172-10. Back Panel Section ............................................................ 172-11. Power Board Section ......................................................... 182-12. Main Board ....................................................................... 182-13. Subwoofer Board, Power Board ........................................ 192-14. Power Transformer (T1200) .............................................. 192-15. BD91 Board ...................................................................... 202-16. Driver Board, SW Board, USB Board .............................. 202-17. Optical Pick-up ................................................................. 212-18. Sensor Board ..................................................................... 212-19. Motor (TB) Board ............................................................. 222-20. Motor (LD) Board ............................................................. 22
3. TEST MODE ..................................................................... 23
4. MECHANICAL ADJUSTMENTS ............................... 27
5. ELECTRICAL ADJUSTMENTS ................................. 28
6. DIAGRAMS6-1. Block Diagram RF/Servo Section ........................... 316-2. Block Diagram Tape/Tuner Section ........................ 326-3. Block Diagram Main Section .................................. 336-4. Block Diagram USB Section .................................. 346-5. Block Diagram AMP/Subwoofer Section ............... 356-6. Block Diagram Display/Power Section .................. 36
6-7. Circuit Boards Location .................................................... 376-8. Printed Wiring Board BD91 Section ....................... 406-9. Schematic Diagram BD91 Section .......................... 416-10. Printed Wiring Boards Driver Section ..................... 426-11. Schematic Diagram Driver Section ......................... 436-12. Schematic Diagram Main Section (1/4) .................. 446-13. Schematic Diagram Main Section (2/4) .................. 456-14. Schematic Diagram Main Section (3/4) .................. 466-15. Schematic Diagram Main Section (4/4) .................. 476-16. Printed Wiring Board Main Section ........................ 486-17. Printed Wiring Board USB Connector Section ....... 496-18. Schematic Diagram USB Connector Section .......... 496-19. Printed Wiring Board USB Section ......................... 506-20. Schematic Diagram USB Section ........................... 516-21. Printed Wiring Board Effector Section ................... 526-22. Schematic Diagram Effector Section ...................... 536-23. Printed Wiring Board Panel Section ........................ 546-24. Schematic Diagram Panel Section .......................... 556-25. Printed Wiring Boards Function Section ................. 566-26. Schematic Diagram Function Section ..................... 576-27. Printed Wiring Board Power Amp Section ............. 586-28. Schematic Diagram Power Amp Section ................ 596-29. Printed Wiring Board Subwoofer Section ............... 606-30. Schematic Diagram Subwoofer Section .................. 616-31. Printed Wiring Boards Trans Section ...................... 626-32. Schematic Diagram Trans Section .......................... 63
7. EXPLODED VIEWS7-1. Main Section ..................................................................... 787-2. Front Panel Section (1) ...................................................... 797-3. Front Panel Section (2) ...................................................... 807-4. Front Panel Section (3) ...................................................... 817-5. Chassis Section ................................................................. 827-6. CD Mechanism Section (1) ............................................... 837-7. CD Mechanism Section (2) ............................................... 84
8. ELECTRICAL PARTS LIST ........................................ 85
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6HCD-GTX88SECTION 1GENERAL This section is extracted
from instruction manual.
6GB
Guide to parts and controlsThis manual mainly explains operations using the buttons on the unit, but the same operations can also be performed using the buttons on the remote having the same or similar names.
Unit
Front view
Top view
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1234
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6
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7
8
9q;qaqs
wkwj wgwh
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7HCD-GTX88
7GB
Guide
to parts and controls
1 FLANGER (pages 35, 43, 48)DELAY (pages 35, 43, 48)CHORUS (pages 36, 43, 48)SOUND FLASH (page 35)Press to create a party atmosphere.
B Display (pages 9, 38, 39, 48)C SURROUND SPEAKER MODE
(MHC-GTX88 only) (page 34)Press to select the sound system.
SURROUND(MHC-GTX77/MHC-GTX66 only) (page 34)Press to select the surround effect.
D Disc tray (pages 9, 17, 44, 48)E AMP MENU (page 38)
Press to change the spectrum analyser display or to adjust the brightness of the display.
F RETURN (pages 17, 25)Press to return to the parent folder.
G NX (play/pause) (pages 17, 22, 24, 30, 44)Press to start or pause playback.
x (stop) (pages 17, 23, 25, 28, 29, 30, 32, 44)Press to stop playback or recording.
./> (go forward/go backward) (pages 17, 20, 23, 25, 27, 31, 48)Press to select a track.
TUNING +/ (pages 28, 29)Press to tune in a radio station.
+/ (pages 17, 20, 23, 25, 27, 31)Press to select a folder.
m/M (rewind/fast forward) (page 30)Press to fast forward or rewind.
H CD- SYNC/REC 1 (page 22)Press to record from a disc onto the connected optional USB device (Digital music player or USB storage media).
CD-TAPE SYNC (page 31)TAPE REC PAUSE/START (page 31)Press to record onto a tape.
I PUSH OPEN/CLOSE Z (Deck B)(page 30)Press to insert or eject a tape.
Deck B (pages 30, 31, 37, 48)J ENTER (pages 23, 29, 33, 48)
Press to enter the selection.
K ERASE (page 23)Press to erase MP3 audio tracks or folders on the connected optional USB device (Digital music player or USB storage media).
L MASTER VOLUME (pages 17, 24, 39, 43)Turn to adjust the volume.
M MIC (jack) (pages 36, 43, 52)Connect an optional microphone.
MIC LEVEL (pages 32, 36, 43)Turn to adjust the microphone volume.
USB
Continuedl
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8HCD-GTX88
8GB
N REC/ERASE (indicator) (pages 23, 25)Lights up when recording from a disc onto the connected optional USB device (Digital music player or USB storage media). Lights up when erasing MP3 audio tracks from the connected optional USB device (Digital music player or USB storage media).
O (USB) port (pages 22, 23, 24, 41, 52)Connect an optional USB device (Digital music player or USB storage media).
P PHONES (jack) (pages 43, 52)Connect the headphones.
Q Power illuminator (pages 35, 39)R PRESET EQ (page 33)
Press to select a preset sound effect.
S Z PUSH OPEN/CLOSE (Deck A)(page 30)Press to insert or eject a tape.
Deck A (pages 30, 48)T Function buttons:
CD (pages 14, 17, 22, 29, 31, 38)TUNER/BAND (pages 29, 38)TAPE A/B (pages 30, 38)AUDIO (pages 38, 41)VIDEO (pages 38, 41)
(pages 23, 24, 26, 38)Press to select a function.
U "/1 (on/standby) (pages 13, 14, 29, 43, 48)Press to turn the system on or off.
V GROOVE (page 33)Press to reinforce the bass.
W IR Receptor (page 43)
X EQ BAND/MEMORY (page 33)Press to select a frequency band when adjusting the graphic equalizer.
Y DISPLAY (pages 38, 39, 40)Press to change the information in the display.
Z OPERATION DIAL (pages 17, 25, 33, 35, 38)Turn to select a track or folder.Turn to select a setting.
wj ILLUMINATION (page 39)Press to change the power illuminator pattern.
wk DISC SKIP/EX-CHANGE (pages 14, 17, 18, 20)Press to skip a disc.Press to exchange other discs during playback.
Z OPEN/CLOSE (pages 14, 17, 44)Press to load or eject a disc.
DISC 1 ~ 3 (pages 18, 20)Press to select a disc.Press to switch to CD function from other function.
USB
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9HCD-GTX88
9GB
Guide
to parts and controls
Display
A Lights up when the USB function is selected (page 24).
B MP3 lights up when an MP3 audio track is recognized. CD lights up when a disc is recognized.
C Indicates the type of MP3 audio track information that displayed (page 39). lights up when a track name is displayed. lights up when an artist name is displayed. lights up when a folder name is displayed.
D Indicates the tuner band (page 28).E Lights up when the MP3 audio track
contains ID3 tag information.F Displays the current status and
information (page 39).G Indicators for the TUNER function
(page 28).H Lights up when the Play Timer or
Recording Timer is set (page 37).I Lights up when the Sleep Timer is
activated (page 37).J Lights up during recording (pages 22,
31).
K Indicators for the TAPE function (page 30). and lights up when the system is turned on. lights up when there is a tape in the deck.
L Lights up when an optional USB device (Digital music player or USB storage media) is recognized (page 22).
M Indicates the selected play mode (pages 19, 26).
N Indicators for the disc tray (page 17). lights up when the disc is selected. lights up when there is a disc on the disc tray. 1, 2 and 3 light up when the system is turned on.
O Indicates the activated sound effect (pages 33, 35).NoteLINK, MATRIX SUR 1 and MATRIX SUR 2 light up for MHC-GTX88 only.
FM AM ID3 AUTO PRESET STMONO
MHzkHz
TUNED
RECPLAY
SLEEP
CDUSB
MP3 BOOSTER
SUR
FLANGER CHORUS DELAYMATRIX SUR 12
LINKZ GROOVE
SHUF TAPE USB
USB MEMORY
PGMALL 1 DISCS
REP 1SYNC
A B1 2 3
qa q;qs
432 5 6 7 81
9qdqfqg
MP3
REC
A B
Continuedl
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10
HCD-GTX88
10GB
Subwoofer A (SS-WG88A)
1 SUBWOOFER ON/OFF (page 13)Press to turn the subwoofer on or off.
2 SUBWOOFER LEVEL (page 13)Turn to adjust the subwoofer level.
Remote
1 "/1 (on/standby) (pages 13, 16, 43)Press to turn the system on or off.
B CLOCK/TIMER SELECT(page 38) CLOCK/TIMER SET (pages 16, 37) Press to set the clock and the timers.
C REPEAT/FM MODE (pages 21, 27, 29, 47)Press to change the Repeat Play setting.Press to select the FM monaural or stereo reception.
D USB (page 24)Press to select the USB function.
CD (page 17)Press to select the CD function.
TUNER/BAND (page 28)Press to select the TUNER function.Press to select FM or AM band.
FUNCTION (pages 30, 41)Press to select a function.
21
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4
5
2
6
79
8
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11
HCD-GTX88
11GB
Guide
to parts and controls
E ./> (go forward/go backward) (pages 17, 20, 23, 25, 27, 31, 37, 48)Press to select a track.
+/ (tuning) (pages 28, 29)Press to tune in a radio station.
m/M (rewind/fast forward) (pages 17, 25, 30)Press to find a point in a track.
(play) (pages 17, 24, 30, 44)X (pause) (pages 17, 30)x (stop) (pages 17, 25, 28, 30, 32)Press to start, pause or stop playback.
F ENTER (pages 16, 23, 28, 33, 37)Press to enter the selection.
G DISC SKIP (pages 18, 20)Press to skip a disc.
H +/ (pages 17, 20, 23, 25, 27, 31)Press to select a folder.
I VOLUME +/* (pages 17, 24, 39, 43)Press to adjust the volume.* The VOLUME + button has a tactile dot.
Use the tactile dot as a reference when operating the system.
J EQ (page 33) Press to select a preset sound effect.
K CLEAR (pages 21, 27)Press to delete a pre-programmed track.
L PLAY MODE/TUNING MODE (pages 19, 26, 28, 29, 44)Press to select the play mode of CD or USB function.Press to select the tuning mode.
qd TUNER MEMORY (page 28)Press to preset a radio station.
qf DISPLAY (pages 38, 39, 40)Press to change the information on the display.
qg SLEEP (page 37)Press to activate the Sleep Timer.
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12
HCD-GTX88SECTION 2
DISASSEMBLYNote : Disassemble the unit in the order as shown below.
2-19. MOTOR (TB) BOARD(Page 22)
2-20. MOTOR (LD) BOARD(Page 22)
2-1. CASE (TOP)(Page 13)
2-2. LOADING PANEL(Page 13)
SET
2-3. TUNER PACK(Page 14)
2-16. DRIVER BOARD,SW BOARD,USB BOARD(Page 20)
2-15. BD91 BOARD(Page 20)
2-17. OPTICAL PICK-UP(Page 21)
2-4. CD BLOCK SECTION(Page 14)
2-10. BACK PANEL SECTION(Page 17)
2-5. FRONT PANEL SECTION(Page 15)
2-18. SENSOR BOARD(Page 21)
2-9. COVER (CDM)(Page 17)
2-11. POWER BOARD SECTION(Page 18)
2-13. SUBWOOFER BOARD,POWER BOARD(Page 19)
2-14. POWER TRANSFORMER(T1200)(Page 19)
2-12. MAIN BOARD(Page 18)
2-6. TAPE MECHANISM DECK,MIC BOARD,USB CONNECTOR BOARD(Page 15)
2-8. CD-SW BOARD(Page 16)
2-7. PANEL BOARD,FUNCTION BOARD,JOG BOARD(Page 16)
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13
HCD-GTX88
2-2. LOADING PANEL
Note : Follow the disassembly procedure in the numerical order given.2-1. CASE (TOP)
1 screw (case 3 TP2)
6 screw (case 3 TP2)
2 two screws (case 3 TP2)
7 two screws (case 3 TP2)
4
9
qs
3 two screws (+BVTP 3 10)
8 two screws (+BVTP 3 10) qa two screws
(+BVTP 3 10)
qd case (top)
5 panel (side-R)
0 panel (side-L)
3 loading panel
2 Pull-out the disc tray.
1 Turn the pulley to the direction of the arrow.
pulley
Front panel side
CD mechanism deck (CDM74KF)
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14
HCD-GTX88
2-3. TUNER PACK
2-4. CD BLOCK SECTION
3 tuner pack2 wire (flat type) (9 core) (CN1)
1 two screws (+BVTP 3 8)
1 screw (+BVTP 3 8)
5 three screws (+BVTP 3 12)
2 lug
3 tapping screw
4 tapping screw
6 wire (flat type) (13 core) (CN701)
qs CD block section
7
9 wire (flat type) (21 core) (CN5053)
0 CN903 (5P)
qa CN901 (2P)
8 wire (flat type) (27 core) (CN5051)
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15
HCD-GTX88
2-6. TAPE MECHANISM DECK, MIC BOARD, USB CONNECTOR BOARD
2-5. FRONT PANEL SECTION
0 front panel section
3
2 three screws (+BVTP 3 8)1 three screws
(+BVTP 3 8)
4 wire (flat type) (17 core) (CN508)
5 wire (flat type) (11 core) (CN509)
7 CN503 (3P)8 CN507 (8P)
9 CN903 (3P)
6 CN100 (4P)
1 three screws (+BVTP 2.6 (3CR))
2 three screws (+BVTP 2.6 (3CR))
5 two screws (+BVTP 2.6 (3CR))
7 two screws (+BVTP 2.6 (3CR))
9 two screws (+BVTP 2.6 (3CR))
0 USB CONNECTOR board
bracket (MIC shield)
8 MIC board
6
3 tape mechanism deck
4 knob (MIC)
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16
HCD-GTX88
2-7. PANEL BOARD, FUNCTION BOARD, JOG BOARD
2-8. CD-SW BOARD
2 two screws (+BVTP 2.6 (3CR))3 two screws (+BVTP 2.6 (3CR))
8 five screws (+BVTP 2.6 (3CR))
9 four screws (+BVTP 2.6 (3CR))
0 six screws (+BVTP 2.6 (3CR))
qj three screws (+BVTP 2.6 (3CR))
4 PANEL board
qa PANEL board
qs knob (volume)
qd nut
qf holder (jog)
qg knob jog assy
qh gear (encoder)
qk JOG board
1 CN956 (2P) 6 CN905 (2P)
7 CN904 (3P)
5 wire (flat type) (25 core) (CN900)
2
1 two screws (+BVTP 2.6 (3CR))
3 two screws (+BTTP (M2.6))
4 three screws (+BTTP (M2.6))
5 CD-SW board
6 escucheon (CD)
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17
HCD-GTX88
2-10. BACK PANEL SECTION
2-9. COVER (CDM)
1 two screws (+BVTP 3 10)
3 cover (CDM)
CD mechanism deck
2 screw (+BVTP 3 10)
5 four screws (+BVTP 3 10)
7 two screws (+BVTP 3 10)
8 three screws (+BVTP 3 10)
6 two screws (+BVTP 3 10)
4 wire (flat type) (17 core) (CN1502)
1 CN1200 (3P)
2 CN1204 (4P)
3 CN1202 (2P)
9 CN580 (3P)
0 back panel section
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18
HCD-GTX88
2-11. POWER BOARD SECTION
2-12. MAIN BOARD
2 two screws (+BV3 (3-CR))
7 two screws (+BV3 (3-CR))
8 screw (+BV3 (3-CR))
9 screw (+BV3 (3-CR))
3 DC fan(M892)
6 three screws (+BVTP 3 10)
0 two screws (+BVTP 3 10)
qa POWER board section
1 CN581 (3P)
4 CN1214 (6P)5 CN1212 (7P)
1 screw (+BVTP 3 10)
2 MAIN board
POWER board assy
CN600
CN601
CN700
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19
HCD-GTX88
2-14. POWER TRANSFORMER (T1200)
2-13. SUBWOOFER BOARD, POWER BOARD
1 two screws (transistor)
9 two screws (transistor)
qd screw (+BVTP 3 10)
qf bracket
qg POWER board
qs heat sink assy
6 two screws (+BVTP 3 8)
7 holder
2 two screws (+BVTP 3 10)
8 two screws (+BVTP 3 10)0 two screws
(+BVTP 3 10)
qa
5 CN607 (5P)
4 SUBWOOFER board
3 screw (+BV3 (3-CR))
2 two screws (+BV3 (3-CR))
7 three screws
8 power transfomer (T1200)
TRANS board
6 three screws
3 DC fan(M892)
4 CN1214 (6P)
5 CN1212 (7P)
1 CN581 (3P)
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20
HCD-GTX88
2-15. BD91 BOARD
2-16. DRIVER BOARD, SW BOARD, USB BOARD
3 BD91 board
2 Remove the four solders. 1 wire (flat type) (16 core) (CN301)
2 CN703 (4P)
3 CN704 (2P)
5 DRIVER board
7 SW board
1 two screws (+BVTT (M2.6))
6 screw (+BVTT (M2.6))
8 two screws (+BVTP2.6 (3CR))
9 USB board
4 wire (flat type) (5 core) (CN702)
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21
HCD-GTX88
2-17. OPTICAL PICK-UP
2-18. SENSOR BOARD
3 two coil springs (insulator)5 two coil springs
(insulator)
4 two insulators 6 two insulators
7 optical pick-up (BU-K6BD91UR)
1 two floating screws (+PTPWH M2.6)
2 two floating screws (+PTPWH M2.6)
2 tray
3 belt (table)
5 pulley (table)
8 screw (+BTTP (M2.6))
0 SENSOR board
7 gear (geneva)
9 CN731(3P)
1 floating screw (+PTPWH M2.6)
6 floating screw (+PTPWH M2.6)
4 floating screw (+PTPWH M2.6)
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22
HCD-GTX88
2-19. MOTOR (TB) BOARD
2-20. MOTOR (LD) BOARD
6 Remove the two solderings of motor.
8 MOTOR (TB) board
7 table motor assy (M741)
5 two screws (+BTTP (M2.6))
4
1 stopper
2 stopper
table
3 wire (flat type) (5 core) (CN742)
2 Remove the two solderings of motor.
4 MOTOR (LD) board
1 belt (loading)
5 loading motor assy (M751)
3 two screws (+BTTP (M2.6))
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23
HCD-GTX88SECTION 3TEST MODE
4. When the [MASTER VOLUME] knob is turned clockwise evenslightly, the sound volume increases to its maximum and amessage VOLUME MAX appears on the fluorescent indicatortube.
5. When the [MASTER VOLUME] knob is turned counter-clockwiseeven slightly, the sound volume decreases to its minimum and amessage VOLUME MIN appears on the fluorescent indicatortube.
* Tape function1. Insert a tape in dack B. The function is changed to VIDEO
automatically when the recording is started by pressing [CD-TAPE SYNC] then press [TAPE REC PAUSE/START] button.During recording the ALC (Automatic Logic Control) is turnedon.
2. During recording, press m button will stop the recordingand the function is changed to TAPE B and rewind the tape inDeck B until the recording start position and playback of thetape in Deck B is started. If the [TAPE REC PAUSE/ START]button is pressed for a pause and pressed again to resumerecording during recording time, when the tape is rewind, thetape will be rewind until the position where the pause is applied.
* To release from MC Test mode1. To release from this mode, press ?/1 button.2. The cold reset is enforced at the same time.
[COLD RESET] The cold reset clears all data including preset data stored in the
RAM to initial conditions. Execute this mode when returningthe set to the customer.
Procedure:1. Press ?/1 button to turn on the system.2. Press x button, [ENTER] button and ?/1 button
simultaneously.3. The message COLD RESET appears on the fluorescent
indicator tube. Then, the fluorescent indicator tube becomesblank for while, and the set is reset.
[VACS ON/OFF] This mode is used to switch ON and OFF the VACS (Variable
Attenuation Control System).
Procedure:1. Press ?/1 button to turn on the system.2. Press x button and [ILLUMINATION] button simultaneously.
The message VACS OFF or VACS ON appears on thefluorescent indicator tube.
[TUNER STEP CHANGE] The step interval of AM channels can be toggled between 9 kHz
and 10 kHz.This mode is not available for Saudi Arabia model.
Procedure:1. Press ?/1 button to turn on the system.2. Press [TUNER/BAND] button repeatedly to select the AM.3. Press ?/1 button to turn off the system.4. Press [ENTER] button and ?/1 button simultaneously. The
system will turn on automatically. The message AM 9K STEPor AM 10K STEP appears on the fluorescent indicator tubeand thus the channel step is changed.
[GC TEST MODE] This mode is used to check the fluorescent indicator tube, LEDs,
buttons, MASTER VOLUME knob, OPERATION DIAL knob,model, destination, software version.
Procedure:1. Press x button, [ENTER] button and [DISC 2] button
simultaneously.2. All LEDs and segments in fluorescent indicator tube are lighted
up.All LEDs are lighted up in red color except for NX LEDwhere the LED is lighted up in green color.
3. When you want to enter to the model version and destinationdisplay mode, press [DISC 1] button. The model informationappears on the fluorescent indicator tube.
4. Each time [DISC 1] button is pressed, the display changes todisplay software version and date of the software creation. Thesequence is MC version, GC version, SYS version, CD version,CDDM version, CDMA version, CDMB version, BDA version,BDB version, ST version, TC version, TA version, TM version,MM1 version and MM2 version in this order, and returns to themodel version display.
5. Press [DISC 2] button, the key check mode is activated.6. In the key check mode, the fluorescent indicator tube displays
K 0 J0 V0.Turn the [OPERATIONAL DIAL] clockwise; J value increasesby one. Turn the [OPERATIONAL DIAL] counterclockwise; Jvalue decreases by one. Each time a button is pressed, K valueincreases. Press other keys on main unit to check whether thekey is detected. However, once a button has been pressed, it isno longer taken into account.V value increases in the manner of 0, 1, 2, 3 ... if [MASTERVOLUME] knob is turned clockwise, or it decreases in the mannerof 0, 9, 8, 7 ... if [MASTER VOLUME] knob is turnedcounterclockwise.
7. When [DISC SKIP/EX-CHANGE] button is pressed after all LEDsand segments in fluorescent indicator tube light up, alternatesegments in fluorescent indicator tube and LED would light up.If you press [DISC SKIP/EX-CHANGE] button again, another halfof alternate segments in fluorescent indicator tube and LEDswould light up. Pressing [DISC SKIP/EX-CHANGE] button againwould cause all LED and segments lights up.
8. To release from this mode, press three buttons in the samemanner as step 1, or disconnect the power cord.
[MC TEST MODE] This mode is used to check operations of the respective sections
of Amplifier, Tuner and Tape.
Procedure: To enter MC Test Mode1. Press x button, [ENTER] button and [DISC 3] button
simultaneously.2. The CD ring indicators and TAPE A and B indicators flash on
the fluorescent indicator tube. The function is changed toVIDEO.
* Check of Amplifier1. Press [EQ BAND/MEMORY] button repeatedly until a message
GEQ MAX appears on the fluorescent indicator tube. GEQincreases to its maximum.
2. Press [EQ BAND/MEMORY] button repeatedly until a messageGEQ MIN appears on the fluorescent indicator tube. GEQdecreases to its minimum.
3. Press [EQ BAND/MEMORY] button repeatedly until a messageGEQ FLAT appears on the fluorescent indicator tube. GEQis set to flat.
-
24
HCD-GTX88
[CD SERVICE MODE] This mode let you move the CD sled motor freely. Use this mode
when you want to clean the optical pick-up.
Procedure:1. Press ?/1 button to turn on the system.2. Select CD function.3. Press x button, [ENTER] button and [OPEN/CLOSE] button
simultaneously.4. The CD service mode is activated. The message SERVICE
MODE appears on the fluorescent indicator tube.5. With the CD in stop status, press M to move the optical
pick-up to outside track, or turn m to move to inside track.The message SLED OUT or SLED IN appears on thefluorescent indicator tube.
6. To turn on or off the laser, press [FLANGER] button. The messageLD ON or LD OFF appears on the fluorescent indicatortube.
7. To release from this mode, press ?/1 button to turn off thesystem.
[CD AGING MODE] This mode can be used for operation check of CD section. If an
error occurs, the aging operation would stops and the status isdisplayed. If there were no error occurs, the aging operationwould continue repeatedly.
Procedure:1. Press ?/1 button to turn on the system.2. Select CD function.3. Load three discs on disc tray.4. Press [PLAY MODE/TUNING MODE] button on the remote control
repeatedly to select the ALL DISCS mode, and press the[REPEAT/FM MODE] button on the remode control repeatedlyto select repeat mode off.
5. Press x button, [ENTER] button and [DISC SKIP/EX-CHANGE]button simultaneously.
6. Aging operation is started.7. To release from this mode, press ?/1 button or disconnect the
power cord to turn the power OFF.
Aging mode sequence:
DISC CHUCKING
TOC READING
PLAY FIRST TRACK FOR 2SECONDS
OPEN THE DISC TRAY
DISC SKIP
CLOSE THE DISC TRAY
START
PLAY LAST TRACK FOR 2SECONDS
EX-CHANGE OPEN/CLOSE
CHANGE THE NEXT DISC
-
25
HCD-GTX88
[CD ERROR CODE MODE] Display the CD error code when an error occurred.
Procedure:1. Press x button, [ENTER] button and [DISC 1] button
simultaneously to enter the error code display mode.2. The fluorescent indicator tube display the number of total error.3. Each time m button and M button are turned, display
change as below.
%% : The process when trouble occurs 01 : Process ejecting DISC 02 : Process waiting for inserting DISC 03 : Process sending request to insert a disc to upper
layer. 04 : Process sending request to eject a disc to upper
layer. 05 : Process pulling a DISC in. 06 : Chucking process 07 : Re-chucking process 08 : Process cancelling chucking
&& : The operation when trouble occurs 00 : Waiting for operation. 10/11/12/13: During eject operation 20 : While pulling a disc in 30 : While cancelling chucking 40/41/42/43: During eject operation due to error.
0000 : Not used (Value is fixed to 0000).
Display of BD error. It is shown with D and 11 digitsnumber.
DISPLAY OFTOTAL ERROR
DISPLAY OFMECHANICAL
ERRORS
BUTTONM m BUTTON
DISPLAY OFNO DISCERRORS
BUTTONM m BUTTON
M
M
M
M
4. To clear the error record, operate the cold reset. (Refer to theMC COLD RESET.)
5. To release from this mode, press the ?/1 button or disconnectthe power OFF.
Display of total error
Em** : The number of times for CDM (mechanical) errors.Ed** : The number of times for BD error (after chucking the
disc.).
Display of CDM (mechanical) error. It is show with M and11 digit number.
Em**Ed**
M*$$%%&&0000
M* : The number of history error for mechanical. (0 is latest one) (Turn > button to display next error.)
$$ : Mechanical errors occur in the operation. FF : Mechanical error during normal operation. Other: Mechanical error during initializing operation.
D*$$%%
D* : The number of error history (0 is latest one) (Press > button to display next error.)
$$ : The detail of trouble 01 : Can not focus 02 : GFS error 03 : Start-up time over 04 : Continuously out of focus 05 : Q code is not input for certain time 06 : Tracking on is impossible 07 : Blank disc
%% : The process when trouble occurs 01 : While SHIP process is performed 02 : While POWER OFF is processed 03 : While INITIALIZE (POWER ON) is processed. 04 : While oscillation stops 05 : From stopping oscillation to start oscillation 06 : During stop 07 : During STOP operation 08 : While start-up is processed 09 : While TOC reading is processed 0a : During search operation 0b : During PLAY operation 0c : During pause operation 0d : During PLAY manual search operation 0e : During PAUSE manual search operation
&& : Processing operation when trouble occurs Show each STEP mentioned in %% digits.
## : Disc speed when trouble occurs. 01 : x1 speed 02 : x2 speed (for models which support x2 speed) 04 : x4 speed
00 : Not used (value is fixed to 00).
-
26
HCD-GTX88
[CD REPEAT 5 LIMIT OFF MODE] The number of repeat for CD playback is 5 times when the re-
peat mode is REPEAT ALL. This mode enables CD to repeatplayback for limitless times.
Procedure:1. Press ?/1 button to turn on the system.2. Select CD function.3. Press x button, [CD] button and [DISC 1] button simultaneously
to enter the CD repeat 5 limit off mode and the fluorescentindicator tube displays LIMIT OFF.
To release from this mode, operate the cold reset.(Refer to the MC COLD RESET.)
[CD SHIP MODE (WITH MEMORY CLEAR)] This mode moves the optical pick-up to the position durable to
vibration and clears all data including preset data stored in theRAM to initial conditions. Use this mode when returning the setto the customer after repair.
Procedure:1. Press ?/1 button to turn on the system.2. Select CD function.3. Press x button, [SOUND FLASH] button and ?/1 button
simultaneously. The system will turn off automatically.4. After the STANDBY blinking display finishes, a message
MECHA LOCK is displayed on the fluorescent indicator tubeand the CD ship mode is set.
5. The Memory is clear after AC Power OFF.
[CD SHIP MODE (WITHOUT MEMORY CLEAR)] This mode moves the optical pick-up to the position durable to
vibration. Use this mode when returning the set to the customerafter repair.
Procedure:1. Press ?/1 button to turn on the system.2. Select CD function.3. Press [CD] button and ?/1 button button simultaneously. The
system will turn off automatically.4. After the STANDBY blinking display finishes, a message
MECHA LOCK is displayed on the fluorescent indicator tubeand the CD ship mode is set.
[CD/USB POWER MANAGE] This mode let you switch on or off power supply to the BU and
USB Micom during TUNER function.
When CD and USB POWER is set to OFF, the power supply tothe BU and USB Micom is cut off during TUNER function. Itwill increase the time taken to access CD and USB when functionchange from TUNER to CD or USB but it will improve tunerreception.
When CD and USB POWER is set to ON, the power supply tothe BU and USB Micom is not cut off during TUNER function.It will reduce the time taken to access CD or USB when functionchange from TUNER to CD or USB but it will decrease tunerreception performance.
Procedure:1. Press ?/1 button to turn on the system.2. Select CD section.3. Press ?/1 button to turn off the system.4. When demonstration appear, press x button and ?/1 button
simultaneously. The set will power on automatically.5. The message CD/USB POWER ON or CD/USB POWER
OFF will be displayed on the fluorescent indicator tube.
[CD TRAY LOCK MODE] This mode let you lock the disc tray. When this mode is activated,
the disc tray will not open when [OPEN/CLOSE] button or [DISCSKIP/EX-CHANGE] button is pressed. The message LOCKEDwill be displayed on the fluorescent indicator tube.
Procedure:1. Press ?/1 button to turn on the system.2. Select CD function.3. Press x button, [OPEN/CLOSE] button simultaneously and
hold down until LOCKED or UNLOCKED displayed onthe fluorescent indicator tube (around 5 seconds).
[TCM OFFLINE MODE] This mode is used to prevent the system from turning off auto-
matically when TCM is not connected. Therefore, measurementscan be done even when TCM is not connected during produc-tion.
Procedure:1. When the system is turned off, press [EQ BAND/MEMORY]
button, [TAPE A/B] button and ?/1 button simultaneously. Thesystem will turn on automatically.
2. The message TCM OFFLINE will be displayed on thefluorescent indicator tube.
To release from TCM Offline Mode, perform COLD RESETor turn off the power supply.
[VACS DISPLAY] This mode is used to check the VACS level.
Procedure:1. Press ?/1 button to turn on the system.2. Press x button, [CHORUS] button and [DISC SKIP/EX-
CHANGE] button simultaneously.3. The VACS Level Display, the fluorescent indicator tube displays
VATB F APC. V represent VACS, A represent VACS levelwhich is triggered by signal level, T represent Thermal VACSNEO, B represent VACS level which is triggered by temperature,F represent FAN is triggered by software to turn in to highspeed, AP represent APVACS (Abuse Protection VACS) andC represent APVACS level which is triggered.
-
27
HCD-GTX88
[ERROR MESSAGE]1. GC error message
Display
Display on fluorescent indicator tube,
GC ERR01
When GC ERR01 message appears, all LEDs lights up andset becomes hang.Set does not respond to any main unit keys or remote controllerkeys.
What to do
1. Please check the model resistor value and replace with correctparts.
2. Plug in the set. The error message shall not be appear.
Precaution1. Clean the following parts with a denatured alcohol-moistened
swab:record/playback heads pinch rollerserase head rubber beltscapstan idlers
2. Demagnetize the record/playback head with a headdemagnetizer.
3. Do not use a magnetized screwdriver for the adjustments.4. After the adjustments, apply suitable locking compound to
the parts adjusted.5. The adjustments should be performed with the rated power
supply voltage unless otherwise noted.
Torque Measurement
2.9m N m to 6.9m N mFWD CQ-102C 30 to 70 g cm
(0.42 0.97 oz inch)
FWD0.15m N m to 0.59m N m
back tensionCQ-102C 2 to 6 g cm
(0.03 0.08 oz inch) 2.9m N m to 6.9m N m
REV CQ-102RC 30 to 70 g cm(0.42 0.97 oz inch)
0.15m N m to 0.59m N mREVCQ-102RC 2 to 6 g cmback tension
(0.03 0.08 oz inch)4.8m N m to 16.7m N m
FF/REW CQ-201B 49 to 170 g cm(0.68 2.36 oz inch)
Mode Torque meter Meter reading
SECTION 4MECHANICAL ADJUSTMENTS
-
28
HCD-GTX88
[FM Tune Level Check]
Procedure:1. Turn the power on.2. Input the following signal from Signal Generator to FM
antenna input directly.
* Carrier Freq : A = 87.5 MHz, B = 98 MHz, C = 108 MHzDeviation : 75 kHzModulation : 1 kHzANT input : 35 dBu (EMF)
Note: Please use 75 ohm coaxial cable to connect SG and the set. Youcannot use video cable for checking.Please use SG whose output impedance is 75 ohm.
3. Set to FM tuner function and tune A, B and C signals.4. Confirm TUNED is lit on the display for A, B and C signals.
The mark of TUNED means The selected station signal isreceived in good condition.
FM signal generator
OUT (75 )SET
SECTION 5ELECTRICAL ADJUSTMENTS
1. Demagnetize the record/playback head with a headdemagnetizer.
2. Do not use a magnetized screwdriver for the adjustments.3. After the adjustments, apply suitable locking compound to the
parts adjust.4. The adjustments should be performed with the rated power
supply voltage unless otherwise noted.5. The adjustments should be performed in the order given in
this service manual. (As a general rule, playback circuitadjustment should be completed before performing recordingcircuit adjustment.)
6. The adjustments should be performed for both L-CH and R-CH.
7. Switches and controls should be set as follows unless otherwisespecified.
Test Tape
[RECORD/PLAYBACK HEAD AZIMUTHADJUST-MENT]DECK A DECK B
Note: Perform this adjustments for both decksProcedure:
1. Mode: Playback
2. Turn the adjustment screw and check output peaks. If the peaksdo not match for L-CH and R-CH, turn the adjustment screwso that outputs match within 1dB of peak.
Tape Signal Used forP-4-A100 10 kHz, 10 dB Azimuth Adjustment
set
MAIN boardCN510Pin 1 (L-CH)Pin 3 (R-CH)
MAIN boardCN510Pin 2 (GND)
+
level meter
test tapeP-4-A100(10 kHz, 10 dB)
screwposition
L-CHpeak
within1dB
outputlevel
L-CHpeak
R-CHpeak
within1dB
screwposition
R-CHpeak
TUNER SECTION 0 dB = 1 V DECK SECTION 0 dB = 0.775 V
-
29
HCD-GTX88
CD SECTION
[TEST DISC LIST]Use the following test disc on test mode. CD: YEDS-18 (PART No. 3-702-101-01)
or
PATD-012 (PART No. 4-225-203-01)
Note:1. CD Block is basically designed to operate without adjustment.
Therefore, check each item in order given.2. Use YEDS-18 (3-702-101-01) unless otherwise indicated.3. Use an oscilloscope with more than 10MW impedance.4. Clean the object lens by an applicator with neutral detergent
when the signal level is low than specified value with thefollowing checks.
[S-CURVE CHECK]
Procedure :1. Connect an oscilloscope to TP106 (FE) and TP124 (VC).2. Turn the power on.3. Load a disc (YEDS-18) and actuate the focus search. (In
consequence of open and close the disc tray, actuate the focussearch)
4. Confirm that the oscilloscope waveform (S-curve) issymmetrical between A and B. And confirm peak to peak levelwithin 3 0.5 Vp-p.
Note: Try to measure several times to make sure than the ratioof A : B or B : A is more than 10 : 7.
Take sweep time as long as possible and light up thebrightness to obtain best waveform.
3. Mode: Playback
4. After the adjustments, apply suitable locking compound tothe pats adjusted.
Adjustment Location: Playback Head (Deck A).Record/Playback/Erase Head (Deck B).
MAINboardCN510
test tapeP-4-A100(10 kHz, 10 dB)
pin 3
oscilloscopeL-CH
R-CH
V H
waveform of oscilloscope
in phase 45 90 135 180good wrong
pin 2pin 1
L
R
forwardreverse
+
TP106(FE)TP124(VC)
oscilloscope
BD91 board
symmetryS-curve waveform
within 3 0.5Vp-pA
B
-
30
HCD-GTX88
[RF LEVEL CHECK]
Procedure :1. Connect an oscilloscope to TP123 (RFO) and TP124 (VC).2. Turn the power on.3. Load a disc (YEDS-18) and playback.4. Confirm that oscilloscope waveform is clear and check if RF
signal level is correct or not.
Note: Clear RF signal waveform means that the shape can beclearly distinguished at the center of the waveform.
Connecting Location: CD board
+
TP123(RFO)TP124(VC)
oscilloscope
BD91 board
VOLT/DIV: 200 mVTIME/DIV: 500 ns
RF signal waveform
level: 1.3 0.3 Vp-p
IC401
BD91 Board (SIDE B)
TP124(VC)
TP123(RFO)
TP106(FE)
IC101
1
1
14
1528
2526
505175
76
100
-
31 31
HCD-GTX88
HCD-GTX88
6-1. BLOCK DIAGRAM RF/SERVO SECTION
(Page 34)
SECTION 6DIAGRAMS
DETECTOR
9795
9496
98
100
FNI1FPI1FNI2FPI2
TPI
TNI
LD0
MDI
CD RF AMP,FOCUS/TRACKING ERROR AMP,DIGITAL SIGNAL PROCESSOR,DIGITAL SERVO PROCESSOR,
DIGITAL FILTER,D/A CONVERTERIC101
OPTICAL PICK-UPBLOCK
(KSM-213DCP)
2AXISDEVICEFOCUS/
TRACKINGCOIL
91
92
2627 24
AUTOMATIC POWER
CONTROLQ301
LASERDIODE
FOCUS COILDRIVE
1817 20
TRACKING COILDRIVE
129
1310
FOCUS/TRACKING COIL DRIVER,SPINDLE, SLED MOTOR DRIVER
IC401
21
SPINDLE MOTORDRIVEMM
M401(SPINDLE)
MMM402
(SLED)
FMOFOO
DNDTRO
23 XI
24 XO
VREF
FOO
BCD
F
E
LD
PD
FCS+FCS
SL
SL+
SP+
SP
TRK+TRK
VC
VREF
VREF11PREF77VRO84
SLED MOTORDRIVE
23
7
XRST1 24
SBSY19
BIAS
MUTE
MMUTE2
4I/O11
TRO
FMOFOO
DMOTRO
FMODMO
30
27
CD+1.5V REGIC201 DVDD+3.3VCD+1.5V
LO
RO
CD LCH
CD RCH
47AOUT2(PO5) DATA63BCK(PO8) CLK51PIO3 GATE49PIO1 ST REQ65AIN(PI4) AIN66BCKI(PI5) BCKIN67LRCKI(PI6)
SELECT112
1B31Y
4C
3C
2C
1C
4
2Y 7
1A2
2A5
2B6
3A11
6
5
13
4O/I
3I/O3O/I
2I/O
2O/I
1I/O1O/I
10
232221
6
39
35
38BUS0
98
39BUS1
34
40BUS2 (SO)
12
1110
98
34
12
41BUS3 (SI)
48PIO1
LRCKINBUS3BUS2BUS1BUS0
3Y 9
4Y 12
REQCCE
3B10
4A14
4B13
BUCK
VM+7V
20 IO0(/HSO)
USBSECTIONB
MAINSECTIONA
Signal Path
1112
93
93CCE
BUS0BUS1
BUS2BUS3
SEL SW
CDCLKCDCCE
MP3IREQ
42BUCK
37RST
54SBSY
4I/O 124C
3C
2C
1C
6
5
13
4O/I
3I/O
3O/I
2I/O
2O/I
1I/O1O/I
21
22
X10216.934MHz
S201(LIMIT)
DVDD+3.3V
SYSTEM CONTROLIC401 (1/6)
SELECT SWITCHIC567
SELECT SWITCHIC566
SELECT SWITCHIC568
SELECTSWITCH
Q602
A
: CD PLAY
: DIGITAL
: USB
(Page 33)
-
3232
HCD-GTX88
HCD-GTX88
6-2. BLOCK DIAGRAM TAPE/TUNER SECTION
(Page 33)
(Page 33)
(Page 33)
ST-L E MAINSECTION
REC-OUT-LREC-OUT-L D MAINSECTION
TAPEMECHANISM
BLOCK
32
A TRIGGER DRIVEQ340,343
R-CH
TU901FM/AM TUNER UNIT
ANTENNA
ST-L
FM ANT
AM ANT
AM ANT
ST-R
ST-DIN/MC-DOUTST-DOUT
ST-CLKST-CE
FM 75 COAXIAL
CAP M+
BTRGM+
ATRGM+
AHALFBHALF
B SHUTA SHUT
REC(FWD)
CAPM-CONT
B-TRIG
A-TRIGTC-RELAY
A-HALFB-HALF
B-SHUTA-SHUT
REC BIASPB-A/B
ALCREC-MUTETC-MUTE
AM
EQ OUT1A
B
ST-DIN/MC-OUTSY-DOUT/MC-DINST-CLKST-CE
34
28 27 26
2421
5557
585960
42 3
9089
91525651
54
53
E-1 45E-2 44E-3 43
8684
8587
13 11 15 14
PB OUT1TAI1
REC IN1
AIN1
BIN1
A/B
ALC
ON/O
FF
REC
MUT
E ON
/OFF
MUT
E ON
/OFF
DECK A/B SELECT,PB/REC EQUALIZER AMP
IC301
SYSTEM CONTROL(TAPE MECHANISM CONTROL)
IC401 (2/6)
REC-OUT1EQ
TC-PB-L
TESTCONNECTOR
CN510
R-CH R
L
C MAINSECTIONPB
HEAD
DECK-A
DECK-B
BIAS OSCQ370
BIASTRAP
MUTE CONTROLSWITCH
Q377, 379
TC PB MUTECONTROL SWITCH
Q382.383
R-CH
R-CH
Q376
Q373,374
Q381
L CH
R CH
R-CH
BIAS+9V
REC/PBHEAD
ERASEHEAD Q378,380
T301
L CH
R CH
R-CH is omitted due to same as L-CH.
A TRIGGER DRIVEQ342,345
CAPSTAN MOTOR DRIVEQ341,344
4
1
2
TABLE ADDRESS SENSORIC731
LD MOTOR DRIVERIC701
TBL MOTOR DRIVERIC712
M+9V
Q731
MOTORDRIVE
M751(TABLE LOADING)M
RE701ROTARY ENCODER
DISC TRAYADDRESS DETECT
S751OPEN/CLOSE
DETECT
LM-F
TBL SENS
FINRIN
48
OPENSW 41
LM-R 4979
OUT2OUT1
24
MOTORDRIVE
M741(TABLE)
MTM-FFINRIN
46TM-R 47
79
OUT2OUT1
24
: TAPE PLAY (DECK B): TAPE PLAY (DECK A): TUNER
: RECORD (DECK B)
Signal Path: AUDIO
-
33 33
HCD-GTX88
HCD-GTX88
6-3. BLOCK DIAGRAM MAIN SECTION
(Page 31)
(Page 35)
(Page 32)
(Page 35)
(Page 32)
(Page 36)
(Page 32)
(Page 35)J101
RCH
L
CD LCH
CD RCH
R
AUDIOIN
CD RCH
11109
3
RCH
MIXERIC1500
MULTIPLEXERIC1503
DIGITAL DELAYIC1501
SIGNAL SELECTERIC564
SURROUND VOLUME CONTROLIC201
INPUT SELECT SWITCH,GRAPHIC EQUALIZER CONTROL,
ELECTRICAL VOLUMEIC101
SIGNAL SELECTERIC563
MIC AMPIC1100(1/2)
MIC AMPIC1100(2/2)
RV1150MIC
LEVEL
LPF1IN
ABC
COM
CDA-MUTE
SOURCESEL 2
SOURCESEL 1
CTRL1
CTRL3
DATA CLK ZGROOVE
FREQ
LINEMUTE
EFFECTOR
SYSTEM CONTROLIC401 (3/6)
S0 S1 S2 SEL
9LPF2OUT
19SAOUT
A+9V
L+R
SPEANAJ1100 (2/2)
10LPF2IN
11OP2OUT
12OP2IN
LPF1OUT
CLOCK14
3
2
25 26 2771865 28 78 77 81 82 75 80 79 66
RCH
L
R
VIDEOIN
MIXERIC1505
BUFFERQ1513
MUTEQ250
CD MUTEQ540
DBFBSWITCH
Q101SELECTSWITCH
Q596
SELECTSWITCH
Q597
BUFFERQ1509
EFFECTORSELECTSWITCH
Q598
XRF/SERVOSECTION A
ST L
TC PB L
XTAPE/TUNERSECTION
TAPE/TUNERSECTION
E
X DISPLAY/POWERSECTION
G
X AMP/SUBWOOFERSECTIONI
REC OUT L X TAPE/TUNERSECTION
D
X AMP/SUBWOOFERSECTION
F
X AMP/SUBWOOFERSECTION
H
XC
4 IMB1
DBFB F/B
SWITCHQ608
SWITCHQ591
3 INA1
6 IND1
14 LFE VOL IN
2 MIC
8RECB1
FL18OUT1
24SWOUT
16BB A117BB B1
11TCA1
21DATA22CLOCK
12TCB1
SW OUT34FL OUT
17DATA18CLOCK
MUTEQ180
D+4V REGQ325
MUTEQ607
LINE MUTEQ544
1
53
10
Y0
Y1Y
A
D101,102
J103
EXCEPT AUS MODEL
D-LIGHTSYNC OUT
3
2
9
10
Y1
Y2
Y3
A
B
Y
5
4
J1100(1/2)
MIC
Q1500
Q1508
Q1506
Q1502
RCH
M61529
DATACLK
M61530
7
13
5
3
: AUDIO
: CD PLAY
: TAPE PLAY (DECK A)
: TAPE PLAY (DECK B)
: MIC
: TUNER
Signal Path R-CH is omitted due to same as L-CH.
Abbreviation AUS : Australian model
-
3434
HCD-GTX88
HCD-GTX88
6-4. BLOCK DIAGRAM USB SECTION
(Page 31)
7778
3
45
VBUS+5V
USB CONTROLIC901
VBUSPOWER ON/OFF
SWITCHIC915
SYSTEM CONTROLIC401 (4/6)
S-RAMIC921
CN952
1
4(USB)
VBUS
D
D+
GND
OUT
P75/USBOCP76/USBPON
D
OE
A0I
A2
A3I
A6
A7I
A10
A11I
A15
WELBUB
CE
D+
IN
FLGEN 1
80
79
PF1/RXDODATA 85PF2/SCLK0/CTSO/CLK/TB0OUT0CLK 86PN5/HSS1/SCL1GATE 94
PN4/HSS0/SDA1A IN 93PN3/HSCLKBCK IN 92P83/CS3/WAIT/TA5OUTLRCKIN 71
P64/A20
P63/A19P62/A18P61/A17
USBRST
USB SERIAL TXDOUSB SERIAL RXDO
USB SERIAL RTSOUSB SERIAL CTSO
BUS3 58BUS2 57BUS1 56BUS0 55
P66/A22CCE 60P65/A21BUCK 59
PG3REQ 96
PG2ST REQ 97
P70/RDP71/SRWR
18I
25
28I
35
64 411765
P72/SRLLBP73/SRLUB
66 394067
P82/CS2 70 16
RESETPC0/INT0
1 31382
PF0/TXD0PF4/RXD1/SPDI
84 343588
PF3/TXD1/SPD0 87
X1 75
X2 73
36
P00/D0I
P07/D7
P10/D8I
P17/D15
37I
43
46I
54
44I
42
27I
24
21I
185I1
I/O0I
I/O3
I/O4I
I/O7
I/O8I
I/O11
I/O12I
I/O15
7I
10
13I
16
29I
32
35I
38
P41/A1I
P47/A7
P50/A8I
P60/A16
RF/SERVOSECTION B
X9019kHz
Signal Path
: USB
: DIGITAL
-
35 35
HCD-GTX88
HCD-GTX88
6-5. BLOCK DIAGRAM AMP/SUBWOOFER SECTION
(Page 33)
(Page 33)
(Page 36)(Page 36)
(Page 33)
MUTINGQ604, 606, 610
F-R
DBFB F/B
F-L
67
STK
MUT
E
12OVER LOAD
DETECTQ668, 618
+ + +
MUTEQ640, 641
MUTECONTROL
Q634,682,684
71
LINK
REL
AY
88
FAN
HI S
PEED
97
SW V
OL L
ED
100
HP D
ET
95
SW V
OL IN
RELAY DRIVEQ644, 647
+VLVL
IN1
ST BY
+RE1RE1
+RE2RE2
+VCCVCC
SW OUT
+-
-+
FRONT SPEAKER
SUB WOOFEROUT
L
R
PHONESJ1101
RY646
RY862+-
-+
L
R
FAN MOTORDRIVE
Q579, 585 DC FANM891
M
M
FAN MOTORDRIVE
Q586588
FAN CONTROLSWITCH
Q584
FAN DETECTQ580582
DC FANM892
TH629
THERMALDETECT
Q628, 630
94
THER
MAL
VAC
S
TB001
TM600
D624
D550
18 1110
914 8
SIGNAL PATH
POWER AMPIC601
69
PROT
ECTO
R
70
FRON
T RE
LAY
68
HP M
UTE
HMAINSECTION
FMAINSECTION
MAINSECTION I
DISPLAY/POWERSECTION
KDISPLAY/POWER
SECTIONJ
TH630
11
45
67
32
13
OCP CTOUT
VL(AC)
1
VP2
43
STK MUTEQ812
SUBWOOFER POWER AMPIC800
SYSTEM CONTROLIC401 (5/6)
OVER CURRENTPROTECTOR
IC550
OVERLOADDETECT
Q850
AC OUTDETECT
Q815
UNDER VOLTAGEDETECT SWITCH
Q506
RELAYDRIVEQ814
OVERLOADDETECT
Q800
OVERLOADDETECTSWITCH
Q648
RY665
FAN CONTROL
HI SPEEDSWITCH
Q581
SYSTEMCONTROL
+9V
CN102
+-
-+
SURROUND SPEAKER
L
R
TM601
RELAY DRIVEQ666
72
SW S
PK R
ELAY
61
UNDE
R VO
LTAG
E DE
T
R-CH is omitted due to same as L-CH.
: AUDIO
-
3636
HCD-GTX88
HCD-GTX88
6-6. BLOCK DIAGRAM DISPLAY/POWER SECTION
USB +5V
ND900VACUUM
FLUORESCENTDISPLAY
9, 1
0, 1
2
22,
24
41,
43
47
1
6, 8
7-10
0
P1
36
G2
21
64
66
7, 8
, 86
BF4
1
SPECTRUMANALYZER
IC902
67
6816
2
15 69
71
48
80
ALL BAND
BF3
BF1
IN2
IN1
VKK
LED SELECTOR
G1,22,23G1,22,23
G2-21
13
17
73 VOLUMEMASTERVOLUME
SPEANA
P1 36
VF1VF2
D900VG
(32V)
FUN CONTROL
X9004MHz
83 XI
82 XO
52
59,
75,7
6,78
,79
LED DRIVEQ906911, 913916
920,921
D906, 908, 910, 913, 917, 921, 929, 923, 925, 927
D905, 907, 909, 912, 914, 916, 922, 924, 926.955
LED+9V
Q903
Q902
Q901
Q900
D904(R)
D930(G)
KEY2 |
KEY0
S901 914,916 933
60I2C DATA61I2C CLK77RESET
30 IIC-DATA29 IIC-CLK
IIC-DATA
IIC-CLK
37 GC-RESET
74 POWER-KEY
73 DISPLAY-KEY
S934
S900DISPLAY
33 STBY-LED/FAN CONTROL
4 SIRCS RESET
X4025MHz
15 X-IN
13 X-OUT
X40132.768kHz
10 XC-IN
11 XC-OUT
SYSTEM CONTROLIC401 (6/6)
50STBY-RELAY
12RESET
20AC-CUT
D671
D402
D501,504
POWERSWITCHING
LED DRIVEQ904,905
RECTD658
RECTD656
+VL
VL(AC)
F1261 VL
VL
VH
VH
VP
VF
VF
GNDF1271
F1241
F1251
R1292
VL
+VHVH
33VREGULATOR
Q1264
POWER ON/OFFRELAY DRIVE
Q1200
VG(-32V) D1292
RECT
VF1
VF2
ND900VACUUM
FRUORESCENTDISPLAY
RY1200
AC IN
T1200POWER
TRANSFORMER
RESETSWITCH
Q501
REMOTE CONTROLSIGNAL RECEIVER
IC901EVER +4V
D+3.3V
DISPLAY CONTROL,KEY CONTROL
IC900
BUFFERQ917, 918, 919
70 BF214
72 OPERATION DIALROTARYENCODER
ROTARYENCODER
OPERATIONDIAL
NO402
(FOR CHECK)
CN402(3/3)
(FOR CHECK)
40USB-POWER
63OVER VOLTAGE DET
32CD POWER
USB POWERCONTROLSWITCH
Q590,603
RECTD540
M +9VVM +7V
LED +9V
A +9VST +9V
OVER VOLTAGEDETECT SWITCH
Q550
AC3
AC3F1281
AUDIO +9VBIAS +9V
UNREG
S1200
S1200
230 240V|
220V|
120V
VOLTAGESELECTOR
AUS,AR MODEL
E2,E51 MODEL
S936
S935
XMAINSECTION G
XAMP/SUBWOOFERSECTION K
XAMP/SUBWOOFERSECTION J
LEVELDETECTIC402
USB+5V REGIC565
+9V REGIC560
+9V REGIC561
DVDD+3.3VREG
IC562
D592
D561,562
D590,594
E2,E51MODEL
D593
DVSS +3.3V
D +3.3V
AVDD +3.3V
DVDD +3.3V
USB POWERCONTROLSWITCH
Q604606
CD POWERCONTROLSWITCH
Q560,561
USB+9V REGIC570
D+4V REGIC569
Abbreviation AR : Argentina model AUS : Australian model E2 : 120V AC area in E model E51 : Chilean and Peruvian model
(Page 33)
(Page 35)
(Page 35)
-
37
HCD-GTX88
6-7. CIRCUIT BOARDS LOCATION
MOTOR (LD) board
SENSOR board
SW board
MOTOR (TB) board
DRIVER board
MAIN boardMIC board
JOG board
FUNCTION board
PANEL board
BD91 board
USB board
USB CONNECTOR board
POWER board
TRANS board
PRIMARY board
CD-SW board
TUNER PACK
EFFECTOR board
SWITCHING POWER
SUBWOOFER board
-
38
HCD-GTX88
Note For Printed Wiring Boards And Schematic Diagrams
Note on Printed Wiring Board: X : parts extracted from the component side. Y : parts extracted from the conductor side. : Pattern from the side which enables seeing.
(The other layers patterns are not indicated.)Caution:Pattern face side: Parts on the pattern face side seen from(Conductor Side) the pattern face are indicated.Parts face side: Parts on the parts face side seen from(Component Side) the parts face are indicated.
Indication of transistor. A : B+ Line. B : B Line. Voltage and waveforms are dc with respect to ground
under no-signal (detuned) conditions. BD91 and Driver sections.
no mark : CD PLAY Except BD91 and Driver sections.
no mark : FM( ) : CD PLAY< > : TAPE PLAY[ ] : TAPE REC : Impossible to measure
Voltages are taken with a VOM (Input impedance 10 M).Voltage variations may be noted due to normal produc-tion tolerances.
Waveforms are taken with a oscilloscope.Voltage variations may be noted due to normal produc-tion tolerances.
Circled numbers refer to waveforms. Signal path.F : AUDIOf : TUNERE : TAPE PLAY (DECK A)d : TAPE PLAY (DECK B)G : TAPE REC (DECK B)N : MICJ : CD PLAYc : DIGITALI : USB
AbbreviationAR : Argentina modelAUS : Australian modelE2 : 120V AC area in E modelE51 : Chilean and Peruvian model
Note: The components identified by mark 0 or dotted linewith mark 0 are critical for safety.Replace only with part number specified.
UNLEADED SOLDERBoards requiring use of unleaded solder are printed with the leadfree mark (LF) indicating the solder contains no lead.(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size)
: LEAD FREE MARKUnleaded solder has the following characteristics. Unleaded solder melts at a temperature about 40 C higher than
ordinary solder.Ordinary soldering irons can be used but the iron tip has to beapplied to the solder joint for a slightly longer time.Soldering irons using a temperature regulator should be set to about350 C.Caution: The printed pattern (copper foil) may peel away if the
heated tip is applied for too long, so be careful! Strong viscosity
Unleaded solder is more viscou-s (sticky, less prone to flow) thanordinary solder so use caution not to let solder bridges occur suchas on IC pins, etc.
Usable with ordinary solderIt is best to use only unleaded solder but unleaded solder may alsobe added to ordinary solder.
C
BThese are omitted.
EQ
B
These are omitted.
C E
Q
B
These are omitted.
C E
Q
Note on Schematic Diagram: All capacitors are in F unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolyticsand tantalums.
All resistors are in and 1/4
W or less unless otherwisespecified.
2 : nonflammable resistor. C : panel designation.
-
39 39
HCD-GTX88
HCD-GTX88
Waveforms
BD91 BOARD (CD PLAY)
USB BOARD
MAIN BOARD
PANEL BOARD
1.4 Vp-p
9 MHz
1 IC901 ug
1 V/DIV, 0.1 sec/DIV
(X1)
3.1 Vp-p
1V/DIV, 0.2 sec/DIV
4MHz
1 IC900 is XO
1 Vp-p
32.768 kHz
1 IC401 q; (XC-IN)
0.5 V/DIV, 0.1 sec/DIV
1.5 Vp-p
5 MHz
2 IC401 qg (X IN)
1 V/DIV, 0.1 sec/DIV
1 IC101 5 (FEI)
2 IC101 6 (TEI)
100 mV/DIV, 0.2 msec/DIV
50 mV/DIV, 0.1 sec/DIV
3 IC101 wf (XO)
100 mV/DIV, 5 msec/DIV
1 V/DIV, 0.1 sec/DIV
2.4 Vp-p
4 IC101 og(FNI1(A))
Approx.150 mVp-p
16.934 MHz
Approx.200 mVp-p
Approx.200 mVp-p
-
4040
HCD-GTX88
HCD-GTX88
6-8. PRINTED WIRING BOARD BD91 SECTION Refer to page 37 for Circuit Boards Location. : Uses unleaded solder.
(Page 48)
1
A
B
C
D
E
F
G
H
I
2 3 4 5 6 7 8 9 10 11 12 13 14
MAINBOARDCN5051
A
R216R214
R213
R155
C128
C106
C201
R30
4R30
2
C309
C205
C207
C307
X102
R201
R303
C133
R111
R112
C115
R21
1
Q301
R30
1
C204
C202
C206
C306
R212
C401
C405
C130
IC201
X102
R11
9
R121
R114
C153R118
R41
5
C112
C108
M401(SPINDLE)
M402(SLED)C4
28
R150R149
R148
R15
4
R153
C148
C110
C109
C301
C303
C302
C104
R11
0
C116
C404
R203R204R205R206R207R208
R209R210
R219
R223R222
R147 R221
R218
R146 R145
C150
C403
R202
C151
C105
C147
C146
C145
C152
C118
C117
C144
C101
C125
TP124(VC)
TP123 (RFO)
TP106(FE)
C143
C120
R14
4
R157
C142
C141
C140
C100
C107 R40
8
R156
C124
IC401
C127C126
CN301
OPTICAL PICK-UP BLOCK
R101
C119
C102
IC101
C103
R40
5
C113
R102
R402
R10
5
R106C132
C138C137 R
135
R13
4
R13
6
R128
R12
9
R143
R14
2
R13
9
C136
C149
C139
R140
R15
1
C122
C123
R220
R104
R224
R109 R108
CN20
2
R41
4
S201(LIMIT)
M
M
1-872-620- (12)12
1-872-620- (12)12
1
3 4
5
-
41 41
HCD-GTX88
HCD-GTX88
(Page 45)
Refer to page 39 for Waveforms. Refer to page 64 IC Block Diagrams.
6-9. SCHEMATIC DIAGRAM BD91 SECTION Refer to page 70 for IC Pin Description of IC101.
IC B/D
IC B/D
Q301
R304
R303
IC201
C202
R140
R144
R110
R101
R157
R156
R114
C201 R201
R202
R211
R203
R204R205
R206R207R208
R209R210
R212
R213R214
R216
TP205
TP211TP212
TP213TP214TP215
TP216TP217
TP218TP219
TP208
TP209
TP204TP203
TP202TP201
TP221
TP222
TP108
TP109
TP110
TP111
TP112
TP113
TP226
TP225
TP224
TP210
TP220
TP206TP207
TP119
TP117
TP118
TP121
TP116
TP115
TP114R301
R111
TP104
TP223
TP103
TP101
TP102 R151
TP315
R223
R222R221
R220R219R218
TP124
R145
R146R147
R148R149
R150
TP125 TP228
TP227R224R109
R143
R139
C106
C401R415
R129
R142
R153
R154
R155
CN202
TP305TP304
TP301TP302
TP303TP306
TP307
TP313TP308
TP310TP311
TP309
C307
C309
C301
C100
C140
C141C142
C105
C143 C144C146
C145C148C147
C149C104
C150
C118
C117
C120
C119
C102 C127
C126
C103
C113
C101
C132
C128 C130
C110
C133
C153
C151C152
C205
C204
C403C404
C405
C115
C116
R112
C206
C109C207
R121
TP120
TP122
TP123
C139
TP312
C302
C303
TP314
C306
R302
C137 C138
R118 C108
R119
C112
R134
R135R136
C136
R130
R128
C107
IC101
R104
R105 R106
R102
TP107
TP106
TP105
C122
C123
C125
C124
R405
R402
R408R414TP407
TP408
TP409
TP410
X102
S201
M401
M402
CN301
IC401
R108
-
4242
HCD-GTX88
HCD-GTX88
6-10. PRINTED WIRING BOARDS DRIVER SECTION Refer to page 37 for Circuit Boards Location. : Uses unleaded solder.
1
A
B
C
D
E
F
G
H
2 3 4 5 6 7 8 9 10 11 12 13 14
(OPEN/CLOSE DETECT)
(DISC TRAY ADDRESS DETECT)
1
9
1
9
1
4
1
21 2
CN751S751
IC731
CN731
CN741
CN74
2
CN72
1
MAINBOARDCN511
B
C715
C731
C735
C736
R70
1
R711
R731
R721
R722
R723
R73
6R
732
R733
R73
4
D70
1
D71
1
C751
IC712IC701
CN704
C737
R71
3
R712
C741
R70
2
JW702
JW703
JW704
JW705
JW706
JW707
JW70
8
JW711CN703
CN702 CN705
R751
C752
JW712
JW701
JW70
9
JW710
JW713
JW714
CN70
1
Q731
B E
(Page 48)
-
43 43
HCD-GTX88
HCD-GTX88
6-11. SCHEMATIC DIAGRAM DRIVER SECTION Refer to page 64 for IC Block Diagrams.
(Page 44)
IC B/D
IC B/D
MAINBOARD (1/4) CN511
B
390
R751
C752CN705
CN704CN721
CN751
C751
IC701
IC712
R701
R713
R711
R723 R721R722
C735C736C737
R736
R733R731
C731
Q731
C741
CN703
IC731CN731 CN741
CN742
C715
R702
R712
R732R734
D711
M751
M741
S751
CN701
D701
CN702
CN711
RE701
-
4444
HCD-GTX88
HCD-GTX88
Refer to page 39 for Waveforms. Refer to page 64 IC Block Diagrams.
6-12. SCHEMATIC DIAGRAM MAIN SECTION (1/4) Refer to page 72 for IC Pin Description of IC401.
(Page 57)
(Page 63)
(Page 46) (Page 47)
(Page 45)
(Page 45)
(Page 43)
1312
B
754 11
E
10
I
H
D
9
G
6
A
14
F
2
J
C
31 8
IC B/D
3.20
3.7
3.7
4 15 1515
6.2
3.20.1
15 3.3
1.9
1.3
1.3
3.2
2.5
3.2
0.2
-0.2
3.1
3.4
3.3
3.2
3.2
3.2
3.3
3.2
3.3
3.3
3.2
3.2
3.4
3.4
3.4
0
0
0(3.2)
0(3.2)
0
0
3.2
0.1
3.3
3.4
3.3
3.1
3.1
2.8
0.8
3.4[0]
3.4[ ]
3.4< >
2.9
3.2
0.1
0
0
0
00
3.4
0 0
0[3.
2]
0[3.
2] 3.3
3.3
0[3.
3]
3.3 0.1
3.3
3.4
0(3.
3) 3.3
3.2
2.7
3.4
3.2
3.2
3.2
3.4
3.4
3.2
3.2
3.2 0 0
9.1
9.1
9.1
0
0
0 9.1
9.1
9.1
0
9.1
0[3.2]
0.9[9.1]
9.1[0.1]
9.1[8.3]
0(3.2)
3.2
3.2(-6.8)
3.3
3.2
-6.6
0.1
1.3
3.4
0[3.4]
3.2
0 0 0 0 000 3.7
0 3.2
3.3
3.3
1.5
1.8
3.2
1.3
0.6
0 3.2(
0)
0 3.3
3.3
3.3
0(3.
3)
3.3
2(AUS)(EXCEPT AUS)
3
(E2,E51)(AUS)
2 2
(AR)
E2,E51MODEL
AUS,ARMODEL
(EXCEPT E2)(E2)
1
1
1
E2MODEL
MAIN BOARD
1
2
3
4
5
6
7
8
9
10
11
12
13
13PCN511
OPEN SW
D+3.3V
TBL ADD SW
E-3
E-2
E-1
TM-F
TM-R
LMF
LMR
MGND
MGND
M+9V
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100
IC401M30622MGP-A57FPU0
XRST
MM
UTE
CD C
CE
SIR
CS
CD C
LK
MP3
IREQ
SOU
RCE
SEL
1
BYTE
CNVs
sXC
-IN
XC-O
UT
RES
ET
X-O
UT
VSS
X-IN
VCC
NM
I
SOU
RCE
SEL
2
SBSY
AC-C
UT
BUS3
BUS2
BUS1
BUS0
EFFE
CTO
R-S
0
EFFE
CTO
R-S
1
EFFE
CTO
R-S
2
EFFE
CTO
R S
EL
IIC-C
LK
IIC-D
ATA
USBRST
CD-POWER
STBY LED/ FAN CONTROL
USB SERIAL CTS0
USB SERIAL TxD0
USB SERIAL RxD0
GC RESET
USB SERIAL RTS0
SEL_SW
USB PWR
OPEN-SW
TBL-SENSE
E-3
E-2
E-1
TMF
TMR
LMF
LMR
STBY RELAYAT
RIG
A-H
ALF
CAPM
+
BTR
IG
REC
BIA
S
TC-R
ELAY
PB-A
B
ALC
REC
MU
TE
TC M
UTE
UN
DER
VO
LTAG
E D
ET
VCC
OVE
R V
OLT
AGE
DET
VSS
CD U
SB M
UTE
LIN
E M
UTE
STK
MU
TE
HP
MU
TE
PORT
ECTO
RFR
ON
T R
ELAY
LIN
K R
ELAY
SW-S
PK-R
ELAY
DIS
PLAY
-KEY
POW
ER-K
EY
Z G
RO
OVE
FR
EQ
NO
USE
CTR
L3
CTR
L1M
6153
0-D
ATA
M61530-CLK
M61529-DATAM61529-CLK
NO USE
ST-CE
ST-DIN/MC-DOUT
ST-CLK
ST-DOUT/MC-DIN
FAN HI SPEED
A SHUT
B SHUT
B-HALF
MODEL-IN
DEST-IN
THERMAL VACS
SW VOL IN
AVSS
SW-VOL-LED
VREF
AVCC
HP DET
1
2
3
4
5
6
7
8
9
10
11
11PCN509
ATRGM+
A SHUT
AHALF
CAPM+
REC(FWD)
TCM MGND
TC DGND
B SHUT
BHALF
NC
BTRGM+
10kR273
22kR272
4.7k
R29
4
3.3k
R29
7
4.7k
R29
6
47k
R29
3
3.3k
R29
5
2SB1132-T100-QRQ340
2SB1132-T100-QRQ341
2SB1132-T100-QRQ342
2.2k
R34
32.
2kR
347
2.2k
R34
02.
2kR
342
3.3k
R34
5
3.3k
R34
9
3.3k
R34
147
00p
C341
4700
pC3
40
1kR502
0R503
220R501
50V
22C501
0.1C503 TP502
100
R43
0
100
R42
9
100
R42
8
100
R42
1
100
R42
2
100
R42
3
100
R42
4
100
R42
5
100
R42
6
100
R42
7
100
R41
9
100R400
100
R40
1
100
R40
2
100
R40
3
100
R40
4
100
R40
5
100
R40
6
100
R40
710
kR
409
330k
R41
1
0R
413
10k
R41
7
220
R41
8
100k
R41
2
1kR
420 32
.768
kHz
X401
22p
C411
22p
C410
6.3V
2200
C416
0.1
C412
0.1
C417
100R432
100R433
100R436
100R438
100R439
100R440
100
R441
100R442
100R443
100R444
100R445
100R446
100R448
100R449
100R435
100
R47
8
100
R47
7
100
R47
510
kR
574
10k
R57
3
100
R46
8
100
R46
9
100
R47
0
100
R47
2
100
R47
3
100
R47
4
10V
100
C462
0.1
C464
10k
R46
3
10kR500
0.1C499
0.1C497
50V10
C498
4.7kR592
R593
1.5kR492R493
100R490
100R489
100R488
100R486
100R485
100R484
1kR497
RT1P137P-TP-1Q560
2.7k
R56
0
2.7k
R56
2
2.7k
R56
3
R56
11k
0.1
C567
6.3V
1000C
568
I OG
TA78033LSIC562
0.1C539
R58115k
R5311k
1
2
3
4
4PCN100
MIC GND
MIC SIG
A+9VHP DET
0.1C149
1
2
3
4
5
6
7
8
9
10
10PCN402
D-GND
TXD1
RTS1
NC
MCU VCC
CLK1
RXD1
CN VSS
RESET
GND
1
2
3
4
4PNO402
D-GND
D+3.3V
11C-CLK
11C-DATA
10kR508
10kR509
1
2
3
3PNO401
STBY RLY
D-GND
EVER+4V0.1C405
0.1
C502
JR13
1
TP501
6.3V
470C5
84
1
2
3
4
5
6
7
8
9
9PCN506
ST-L
ST+9V
ST-R
GND
TUNED
ST-CE
ST-DIN
ST-CLK
ST-DOUT
150kR548
150kR542
2.2k
R54
7
22k
R54
622k
R54
0
MC2
836
D40
2
MC2836D585
100R491
10kR586
10k
R537
100R447
100
R47
1
100
R46
7
R495
1k
100R431
100R434
MA1
11-T
XD
340
MA1
11-T
XD
342
MA111-TXD504
MA111-TXD501
MA1
11-T
XD
502
IOG
TA7804LSIC569
0.1
C614
MA1
11-T
XD
503
MA111-TXD593
10EDB40-TB3D592
10ED
B40-
TB3
D59
410ED
B40-
TB3
D59
0
10k
R66
3
1kR66
0
22kR661
10kR662 C
608
0.1
JW57
0
JW56
1
JW56
8
10kR541
10k
R67
2
2.2k
R67
3
10k
R34
410
kR
348
10k
R34
6
2SB1690TLQ604
100R487
R582
R532
10kR587
50V
4.7C
545
50V
4.7C5
44
5.6kR510
50V
10C51
1
RT1N430C-TP-1Q506
RT1P241C-TP-1Q544
RT1P241C-TP-1Q540
RT1N141C-TP-1Q344
RT1N141C-TP-1Q345
RT1N141C-TP-1Q343
RT1N141C-TP-1Q606
RT1N141C-TP-1Q561
Q6052SC2712-YG-TE85L
RT1N241C-TP-1Q501
RESET SWITCH
RT1P241C-TP-1Q583
STANDBY LED/FAN CONTROLSWITCH
1M
R595
50V
4.7
C540
50V
4.7C5
41
4.7k
R52
9
4.7k
R53
0
A1
A2
A5
A6
A7
A8
A9
A10
A11
A12
A14
A15
A16
A3
A4
A13
B2B1
A17
E2E3E4E5E6E7E8E9E10
E1
5MHzX402
5 4
321
BD49
29G
-TR
IC40
2
54
51
41
42
43
44
45
46
6866585756555453 65
82
12
9
32
33
34
31
73 74
80
79
81
6665
47
49
48
47
46
45
44
43
42
41
48
49
91
90
89
595251 70 71 7267 69
38
35
28 27 26 25
39
24 23 22 21 5 3 2 14718
95
87
86
85
84
85
86
87
77 78 75
37
32 32
53
3434
36
19 6
60
88
31
31
4040
3301
30
29
29
33
33
94
97
9
84
40
32
12
89
90
91
52
29
30
DVDD+3.3V REG
IC562
D+4V REG
IC569
LEVEL DETECT
IC402
SYSTEM CONTROL
IC401
(1/4)
2 1
TAPEMECHANISM
DECK
FM/AMTUNERPACK
BDRIVERBOARDCN701
TESTPIN
PINTEST
Q341,344CAPSTAN MOTOR DRIVE
Q342,345B TRIGGER DRIVE
Q340,343A TRIGGER DRIVE
CD MUTEQ540
LINE MUTEQ544
UNDER VOLTAGE DETECT SWITCHQ506
CD POWER CONTROL SWITCHQ560,561
USB POWER CONTROL SWITCHQ604-606
ANTENNA
FM 75COAXIAL
AM
TU901
BOARDMAIN
(2/4)1
BOARDMIC
CN902G
BOARDPRIMARY
CN1200J
BOARDMAIN
(2/4)2
MAIN BOARD (4/4)4
MAIN BOARD (3/4)3
R4931.5k4.7k
R593
1k4.7k
680
0
R532,582680
3
2
11
2
3
-
45 45
HCD-GTX88
HCD-GTX88
6-13. SCHEMATIC DIAGRAM MAIN SECTION (2/4) Refer to page 64 for IC Block Diagrams.
(Page 51)
(Page 46) (Page 47)
(Page 41) (Page 53)
(Page 44)
(Page 44)
12
K
3 4
A
6
D
9
J
F
E
2
C
51
G
I
138
B
157 141110
H
16
1BOARD(1/4)
MAIN
2BOARD(1/4)
MAIN
USB BOARD
DCN907
BD91 BOARD
ACN202
EFFECTOR BOARD
ECN1502
5MAIN BOARD (3/4)
6MAIN BOARD (4/4)
IC B/D IC B/D IC B/D
IC B/D
IC B/D
IC B/D
IC B/D
3.2 3.2 3.2 0 0 0 0
0 0 0 0 3.2 3.2 0 0.1 0 0.1 0 0
3.2 0 0 0 0 0 0.1 3.2 0.1 3.3 3.2 0.1 3.3 3.2
3.2 0 0 0 0 0 0
0 0
0.60.6
3.2
3.2(0)
00(9)
9 4.5 4.5 4.5 4.5 4.5 0(9) 0
4.5 4.5 4.5 4.5 4.5
9 4.4 4.5 4.4 4.5 4.4 0
4.5 4.4 4.5 4.5 4.5
0
3.2
4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 0
4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.2 9 0
4.5
0
0
4.54.5
4.1
0
4.5
0
4.1
3.2
04.5
4.5
4.6 4.6 4.6 4.6 4.6 4.6 4.6 4.6 4.6 4.6 4.6 4.6
4.6 4.6 4.6 4.6 4.6 4.6 4.6 4.6 4.6 4.6 9 0 0 4.6
3.2
0
100k
RT1N141C-TP-1
G
L1
R1
L2
R2
J101
220p
C263
220p
C260
220p
C261
220p
C262
0R261
0R262
42 41 37383940
1 2 3 4 5
343536
6 7 8 9
30313233
10 11 12 13
29 28 27
14 15 16
26 25
17 18
24 23 22
19 20 21
M61
530F
P-D
60G
IC20
1
FR L
PFO
UT
FR L
PFIN
SL E
XTIN
SL V
OLI
N
SL L
PFO
UT
SL L
FPIN
SR E
XTIN
SR V
OLI
N
SR L
PFO
UT
SR L
PFIN
C VO
LIN
C LF
POU
T
C LP
FIN
LFE
VOLI
N
SW IN
VCC
DAT
A
CLO
CK
GN
D
TEST
AGCSW
LPF
OU
T
SW L
PFIN
SW O
UT
C O
UT
SR O
UT
SR B
B2
SR B
B1
SL O
UT
SL B
B2
SL B
B1
FR O
UT
FR IN
FL O
UT
REF
OU
T
REF
IN
L LP
FIN
L LP
FOU
T
R L
PFO
UT
R L
PFIN
FL L
PFIN
FL L
PFO
UT
R22
96.
8k
6.8k
R22
8
0.1C2310.
1C2
20
10V
100
C222 10V
100C223
0.1
C221
12k
R22
1 100k
R22
0
C230
0.1
50V
1C20
7
220p
C206
0.1
C205
220p
C203
1kR
204
1kR
205
10V
220
C204
0R
203
50V
10C202
10V
1000
C535
0.1C520
42 41 37383940
1 2 3 4 5
343536
6 7 8 9
30313233
10 11 12 13
29 28 27
14 15 16
26 25
17 18
24 23 22
19 20 21
M61
529F
P-D
60G
IC10
1
REF
MIC
INA1
INB1
INC1
IND
1
REC
A1/N
ex1
REC
B1
TMI1
TMO
1
TCA1
TCB1
TCC1
TOU
T1
VILI
N1
BB_A
1
BB_B
1
OU
T1
SAO
UT
VCC
DAT
ACL
OCK
GN
D
SWO
UT
OU
T2
BB_B
2
BB_A
2
VOLI
N2
TOU
T2
TCC2
TCB2
TCA2
TMO
2
TMI2
REC
B2
REC
A2/IN
ex2
IND
2
INC2
INB2
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