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Sony HCD-GNX780 Service Manual

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HCD-GNX780/GNX880
SERVICE MANUAL
Ver. 1.1 2006.09
• HCD-GNX780/GNX880 is the Amplifier,
Disc player, tape deck and tuner
section in MHC-GNX780/GNX880.
Amplifier section
HCD-GNX880
The following are measured at
Front/Surround speaker
DIN power output (rated)
Continuous RMS power output (reference)
Subwoofer
Continuous RMS power output (reference)
HCD-GNX780
The following are measured at AC 127 V, 60 Hz
Front speaker
DIN power output (rated)
Continuous RMS power output (reference)
Sony Corporation
9-887-130-02
Home Audio Division
2006I02-1
© 2006.09
Published by Sony Techno Create Corporation
CD
Section
TAPE
Section
SPECIFICATIONS
AC 127 V, 60 Hz
180 + 180 watts
(6 ohms at 1 kHz, DIN)
225 + 225 watts
(6 ohms at 1 kHz, 10% THD)
200 watts
(8 ohms at 100 Hz, 10% THD)
210 + 210 watts
(4 ohms at 1 kHz, DIN)
285 + 285 watts
(4 ohms at 1 kHz, 10% THD)
Photo: HCD-GNX880
Model Name Using Similar Mechanism
CD Mechanism Type
Base Unit Name
Optical Pick-up Name
Model Name Using Similar Mechanism
Tape Transport Mechanism Type
Inputs
VIDEO/MD (AUDIO) IN (phono jacks):
TV (AUDIO) IN (phono jack):
MIC (phone jack):
Outputs
VIDEO OUT (phono jack):
PHONES (stereo mini jack):
FRONT SPEAKER/SURROUND SPEAKER/
SUBWOOFER OUT:
MiNi Hi-Fi COMPONENT SYSTEM
Mexican Model
HCD-GN880
CDM74KF-F1BD84
BU-F1BD84
KSM-215DCP/C2NP
HCD-GNX80
CWN42FF601
voltage 250/450 mV,
impedance 47 kiloohms
voltage 250 mV,
impedance 47 kiloohms
sensitivity 1 mV,
impedance 10 kiloohms
max. output level
1 Vp-p, unbalanced, Sync negative,
load impedance
75 ohms
accepts headphones of 8 ohms or more
Use only the supplied speaker
– Continued on next page –

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  • Page 1 HCD-GNX780/GNX880 SERVICE MANUAL Mexican Model Ver. 1.1 2006.09 • HCD-GNX780/GNX880 is the Amplifier, Disc player, tape deck and tuner section in MHC-GNX780/GNX880. Photo: HCD-GNX880 Model Name Using Similar Mechanism HCD-GN880 CD Mechanism Type CDM74KF-F1BD84 Section Base Unit Name BU-F1BD84 Optical Pick-up Name...
  • Page 2 COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.

  • Page 3: Table Of Contents

    HCD-GNX780/GNX880 TABLE OF CONTENTS SERVICING NOTES ..........4 DIAGRAMS 7-1. Block Diagram – CDG Section – ........27 GENERAL 7-2. Block Diagram – Tape/Tuner Section – ......28 Locating the Controls ............5 7-3. Block Diagram – Main Section – ........29 7-4.

  • Page 4: Servicing Notes

    HCD-GNX780/GNX880 SECTION 1 SERVICING NOTES NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT The laser diode in the optical pick-up block may suffer electrostatic break-down because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body.

  • Page 5: General

    HCD-GNX780/GNX880 SECTION 2 GENERAL This section is extracted from instruction manual. LOCATING THE CONTROLS Main unit ALPHABETICAL ORDER SYMBOLS M – R MASTER VOLUME wk ?/1 (power) rs A – D MIC 1/2 (jack) wl Z OPEN/CLOSE 3 ALBUM +/– ql...

  • Page 6: Remote Control

    HCD-GNX780/GNX880 This section is extracted from instruction manual. Remote control TAPE wd ALPHABETICAL ORDER TUNER/BAND 7 A – E TUNER MEMORY wg TUNING MODE 5 ALBUM + qf VOLUME +/– qg ALBUM – qh The + button has a tactile dot.*...

  • Page 7: Disassembly

    HCD-GNX780/GNX880 SECTION 3 DISASSEMBLY • This set can be disassembled in the order shown below. 3-1. DISASSEMBLY FLOW 3-2.SIDE PANEL, TOP CASE (Page 8) 3-3.LOADING PANEL (Page 8) 3-4.FRONT PANEL ASSY (Page 9) 3-7.CD-SW BOARD, 3-6.TAPE MECHANISM DECK, 3-5.TUNER PACK...

  • Page 8: Side Panel, Top Case

    HCD-GNX780/GNX880 Note: Follow the disassembly procedure in the numerical order given. 3-2. SIDE PANEL, TOP CASE qd CASE (TOP) 7 two screws (case 3 TP2) 8 two screws (3 × 12) (+BVTP 3 × 10) qa two screws (+BVTP 3 × 12)

  • Page 9: Front Panel Assy

    HCD-GNX780/GNX880 3-4. FRONT PANEL ASSY 8 wire (flat type) 6 connector (CN509) (CN100) 7 wire (flat type) (CN508) 4 screw (+BVTP 3 × 10) 3 screw (+BVTP 3 × 10) 5 front panel assy q; connector (CN1102) 9 connector qa connector...

  • Page 10: Tape Mechanism Deck, Mic Board

    HCD-GNX780/GNX880 3-6. TAPE MECHANISM DECK, MIC BOARD 1 three screws (+BVTP2.6 (3CR)) 2 two screws (+BVTP2.6 (3CR)) 3 tape mechanism deck 4 three screws (+BVTP2.6 (3CR)) 5 bracket (MIC) 7 MIC board 6 knob (MIC) 3-7. CD-SW BOARD, PANEL BOARD 2 Pull up the bracket portion of button (DISC) in the arrow A direction and pull out CD-SW board in the arrow B direction.

  • Page 11: Function Board, Jog Board

    HCD-GNX780/GNX880 3-8. FUNCTION BOARD, JOG BOARD 3 FUNCTION board 2 nine screws (+BVTP2.6 (3CR)) 7 JOG board 6 two screws (+BVTP2.6 (3CR)) 4 knob jog assy 5 two screws (+BVTP2.6 (3CR)) 1 knob vol 3-9. CD MECHANISM DECK 2 CD mechanism deck...

  • Page 12: Back Panel

    HCD-GNX780/GNX880 3-10. BACK PANEL 3 wire (flat type) 8 back panel (CN1501) 5 two screws (+BVTP 3 × 12) 2 connector (CN1204) 4 five screws (+BVTP 3 × 10) 1 connector (CN1200) 7 two screws 9 connector (+BVTP 3 × 12)

  • Page 13: Power Amp Pc Board Assy, Main Board

    HCD-GNX780/GNX880 3-12. POWER AMP PC BOARD ASSY, MAIN BOARD 4 two screws 5 screw (+BV3 (3-CR)) (+BV3 (3-CR)) 7 power AMP PC board assy 3 screw (+BV3 (3-CR)) 6 screw (+BVTP 3 × 10) (GNX880) 1 connector 8 connector (CN1213)

  • Page 14: Power Transformer (T1200)

    HCD-GNX780/GNX880 3-14. POWER TRANSFORMER (T1200) TRANS board 5 power transfomer (T1200) 1 connector (CN1213) 4 two screws 2 connector (CN1212) 3 two screws 3-15. CDG BOARD, DRIVER BOARD, SW BOARD 1 two screws 2 CDG board (+BVTP 3 × 10) 3 three screws (+BVTP 3 ×...

  • Page 15: Bd84 Board

    HCD-GNX780/GNX880 3-16. BD84 BOARD 1 floating screw (+PTPWH M2.6) 6 two insulators 2 h older (213) ASSY qh optical pick-up (KSM-215DCP/C2NP) 5 two coil springs (insulator) 0 two insulators 3 screw 9 two coil springs (+BTTP (M2.6)) (insulator) 4 floating screw 8 t wo stoppers (BU) (+PTPWH M2.6)

  • Page 16: Motor (Tb) Board

    HCD-GNX780/GNX880 3-18. MOTOR (TB) BOARD 2 stopper 1 stopper 7 t able motor assy (M741) 3 wire (flat type) 5 core (CN742) 8 MOTOR (TB) board 6 Remove the two solderings of motor. 5 two screws (+BTTP (M2.6)) 3-19. MOTOR (LD) BOARD 2 two screws (+BTTP (M2.6))

  • Page 17: Test Mode

    HCD-GNX780/GNX880 SECTION 4 TEST MODE [GC TEST MODE] [MC TEST MODE] • This mode is used to check the fluorescent indicator tube, • This mode is used to check operations of the respective sections LEDs, keys, VOLUME jog, OPERATION DIAL jog, AMS of Amplifier, Tuner, and Tape.
  • Page 18 HCD-GNX780/GNX880 [VACS ON/OFF] [CD AGING MODE] • This mode is used to switch ON and OFF the VACS (Variable This mode can be used for operation check of CD section. Attenuation Control System). • If an error occurs, the aging operation would stops and the status is displayed.
  • Page 19 HCD-GNX780/GNX880 • Display when an error occurred (CD Error Code Mode) 3) Display of no disc errors Procedure: Display 1. Press x button, [ENTER] button and [DISC 1] button simultaneously to enter the error code display mode. D*$$%%&&##00 2. The fluorescent indicator tube displays the number of total error.
  • Page 20 HCD-GNX780/GNX880 [CD SHIP MODE (WITHOUT MEMORY CLEAR)] [CD TRAY LOCK MODE] • This mode moves the optical pick-up to the position durable • This mode let you lock the disc trays. When this mode is to vibration. Use this mode when returning the set to the...

  • Page 21: Mechanical Adjustments

    HCD-GNX780/GNX880 SECTION 5 SECTION 6 MECHANICAL ADJUSTMENTS ELECTRICAL ADJUSTMENTS Precaution DECK SECTION 0 dB=0.775 V 1. Clean the following parts with a denatured alcohol-moistened swab: 1. Demagnetize the record/playback head with a head record/playback heads pinch rollers demagnetizer. erase head rubber belts 2.

  • Page 22: Cdg Section

    HCD-GNX780/GNX880 2. Turn the adjustment screw and check output peaks. If the peaks CDG SECTION do not match for L-CH and R-CH, turn the adjustment screw so that outputs match within 1dB of peak. Note: 1. CD Block is basically designed to operate without adjustment.
  • Page 23 HCD-GNX780/GNX880 RFAC Level Check E-F Balance Check Connection: Connection: oscilloscope oscilloscope CD board CD board TP124 (RFAC) JPO103 (TE1) TP117 (VC) – TP117 (VC) – Procedure: Procedure: 1. Connect an oscilloscope to test point TP124 (RFAC) and TP 1. Connect an oscilloscpe to test point TPO103 (TE1) and TP117 117(VC) on the CD board.
  • Page 24 HCD-GNX780/GNX880 Checking Location: – BD84 BOARD (SIDE B) – TP117 (VC) JPO103 (TE1) IC101 JPO102 (FE1) TP124 (RFAC)

  • Page 25: Diagrams

    HCD-GNX780/GNX880 SECTION 7 DIAGRAMS Note on Printed Wiring Boards: For schematic diagrams. Note: Note: • X : parts extracted from the component side. • All capacitors are in µF unless otherwise noted. (p: pF) • : Pattern from the side which enables seeing.
  • Page 26 HCD-GNX780/GNX880 • CIRCUIT BOARDS LOCATION PRIMARY board CDG board TUNER PACK CD-SW board EFFECTOR board SWITCHING POWER TRANS board SURROUND board PA board SENSOR board SW board BD84 board MOTOR (TB) board MOTOR (LD) board DRIVER board PANEL board FUNCTION board...

  • Page 27: Block Diagram - Cdg Section

    HCD-GNX780/GNX880 7-1. BLOCK DIAGRAM – CDG SECTION – MAIN CD-L AOUT1 SECTION (Page 29) AOUT2 R-CH OPTICAL PICK-UP BLOCK IC101 CD MUTE CD MUTE DRIVE IC210 (KSM-215DCP/C2NP) RF AMP, DSP, DAC Q250,251 Q540, 541 CD DIGITAL OPTICAL DOUT DETECTOR OPTICAL IC301 +3.3V...

  • Page 28: Block Diagram - Tape/Tuner Section

    HCD-GNX780/GNX880 Ver. 1.1 7-2. BLOCK DIAGRAM – TAPE/TUNER SECTION – DECK-A AIN1 L – CH EQ OUT1 TC-PB-L PB OUT1 MAIN TAI1 HEAD SECTION R – CH R-CH (Page 29) CN510 BIN1 SWITCH DRIVE TEST DECK-B Q382, 383 Q376 CONNECTOR...

  • Page 29: Block Diagram - Main Section

    HCD-GNX780/GNX880 7-3. BLOCK DIAGRAM – MAIN SECTION – IC1100 DIGTAL ECHO DA OUT AD IN IC1101 ECHO MIC AMP MIC VOL J1101(1/3) MC1P POOUT MIC OUT ADPCM ADPCM POST DELAY MIC 2 ENCODE DECODE J1100(3/3) J1100(1/3) REC-OUT-L MC2P TAPE/TUNER MIC 1...

  • Page 30: Block Diagram - Amp Section

    HCD-GNX780/GNX880 7-4. BLOCK DIAGRAM – AMP SECTION – MAIN DBFB F/B J1103 SECTION PHONES (Page 29) IC600 POWER AMP D624 TM600 FRONT SPEAKER RY646 RY665 GNX880 PROTECT OVER LOAD SWITCH DETECT Q666 MUTING Q668, 618 TH629 MUTING Q604, 606, 610...

  • Page 31: Block Diagram - Display/Power Section

    HCD-GNX780/GNX880 7-5. BLOCK DIAGRAM – DISPLAY/ POWER SECTION – LED+9V KEY2 83 XIN S901 – 906, 1166 - 1170 X901 KEY0 4MHz 82 XOUT Q905 Q907 Q906 P1 – 36 SELECTOR Q904 IC902 DISPLAY CONTROL, FL901 KEY CONTROL G14-16 BUFFER...

  • Page 32: Printed Wiring Board - Bd84 Board

    HCD-GNX780/GNX880 7-6. PRINTED WIRING BOARD – BD84 BOARD – • See page 26 for Circuit Boards Location. : Uses unleaded solder. BD84 BOARD (SIDE B) BD84 BOARD (SIDE A) M101 (SPINDLE) M102 (SLED) TP117 (VC) JPO103 (TE1) MAIN BOARD JPO102...

  • Page 33: Schematic Diagram - Bd84 Board

    HCD-GNX780/GNX880 7-7. SCHEMATIC DIAGRAM – BD84 BOARD – • See page 54 and 55 for IC Block Diagrams. • See page 54 for Waveforms. • See page 58 for IC Pin Function Description. HCD-GNX780/GNX880...

  • Page 34: Printed Wiring Boards - Cd Mechanism Sectiom

    HCD-GNX780/GNX880 7-8. PRINTED WIRING BOARDS – CD MECHANISM SECTION – • See page 26 for Circuit Boards Location. : Uses unleaded solder. SENSOR BOARD MAIN BOARD CN511 (Page 36) DRIVER BOARD BOARD 1-687-132- (12) MOTOR(TB) BOARD M741 (TABLE) 1-687-669- (12)

  • Page 35: Schematic Diagram - Cd Mechanism Section

    HCD-GNX780/GNX880 • See page 54 for IC Block Diagrams. 7-9. SCHEMATIC DIAGRAM – CD MECHANISM SECTION – HCD-GNX780/GNX880...

  • Page 36: Printed Wiring Board - Main Board

    HCD-GNX780/GNX880 Ver. 1.1 7-10. PRINTED WIRING BOARD – MAIN BOARD – • See page 26 for Circuit Boards Location. : Uses unleaded solder. DRIVER PRIMARY BD84 EFFECTOR (FOR CHECK) BOARD BOARD BOARD BOARD BOARD BOARD TUNER PACK CN701 CN1200 CN1001...

  • Page 37: Schematic Diagram - Main Board (1/3)

    HCD-GNX780/GNX880 Ver. 1.1 7-11. SCHEMATIC DIAGRAM – MAIN BOARD (1/3) – • See page 54 for Waveforms. HCD-GNX780/GNX880...

  • Page 38: Schematic Diagram - Main Board (2/3)

    HCD-GNX780/GNX880 Ver. 1.1 • See page 54 for Waveforms. • See page 61 for IC Pin Function Description. 7-12. SCHEMATIC DIAGRAM – MAIN BOARD (2/3) – VREF HCD-GNX780/GNX880...

  • Page 39: Schematic Diagram - Main Board (3/3)

    HCD-GNX780/GNX880 Ver. 1.1 7-13. SCHEMATIC DIAGRAM – MAIN BOARD (3/3)– HCD-GNX780/GNX880...

  • Page 40: Printed Wiring Board - Panel Board

    HCD-GNX780/GNX880 Ver. 1.1 7-14. PRINTED WIRING BOARD – PANEL BOARD – • See page 26 for Circuit Boards Location. : Uses unleaded solder. PANEL BOARD CD-SW BOARD NO1151 (Page 42) > • Semiconductor Location Ref. No. Location D901 D905 >...

  • Page 41: Schematic Diagram - Panel Board

    HCD-GNX780/GNX880 Ver. 1.1 7-15. SCHEMATIC DIAGRAM – PANEL BOARD – • See page 54 for IC Block Diagrams. • See page 54 for Waveforms. • See page 63 for IC Pin Function Description. HCD-GNX780/GNX880...

  • Page 42: Printed Wiring Boards - Cd-Sw, Jog, Mic And Function Boards

    HCD-GNX780/GNX880 7-16. PRINTED WIRING BOARDS – CD-SW, JOG, MIC and FUNCTION BOARDS – • See page 26 for Circuit Boards Location. : Uses unleaded solder. CD-SW BOARD FUNCTION BOARD PANEL BOARD NO904 (Page 40) 1-868-672- (11) BOARD PANEL BOARD CN900...

  • Page 43: Schematic Diagram - Cd-Sw, Jog, Mic And Function Boards

    HCD-GNX780/GNX880 Ver. 1.1 7-17. SCHEMATIC DIAGRAM – CD-SW, JOG, MIC and FUNCTION BOARDS – • See page 57 for IC Block Diagrams. HCD-GNX780/GNX880...

  • Page 44: Printed Wiring Board - Pa Board

    HCD-GNX780/GNX880 Ver. 1.1 7-18. PRINTED WIRING BOARD – PA BOARD – • See page 26 for Circuit Boards Location. : Uses unleaded solder. SURROUND MAIN MAIN BOARD BOARD BOARD BOARD NO800 CN501 CN1102 CN502 (Page 46) (Page 36) (Page 42)

  • Page 45: Schematic Diagram - Pa Board

    HCD-GNX780/GNX880 Ver. 1.1 7-19. SCHEMATIC DIAGRAM – PA BOARD – HCD-GNX780/GNX880...

  • Page 46: Printed Wiring Board - Surround Board

    HCD-GNX780/GNX880 7-20. PRINTED WIRING BOARD – SURROUND BOARD – • See page 26 for Circuit Boards Location. : Uses unleaded solder. SURROUND BOARD BOARD CN607 (Page 44) 1-868-667- (12) • Semiconductor MAIN MAIN Location BOARD BOARD CN105 CN512 Ref. No.

  • Page 47: Schematic Diagram -Surround Board

    HCD-GNX780/GNX880 Ver. 1.1 7-21. SCHEMATIC DIAGRAM –SURROUND BOARD – HCD-GNX780/GNX880...

  • Page 48: Printed Wiring Board - Effector Board

    HCD-GNX780/GNX880 Ver. 1.1 7-22. PRINTED WIRING BOARD – EFFECTOR BOARD – • See page 26 for Circuit Boards Location. : Uses unleaded solder. EFFECTOR BOARD MAIN BOARD CN512 (Page 36) • Semiconductor Location Ref. No. Location D1502 IC1500 IC1501 IC1503...

  • Page 49: Schematic Diagram - Effector Board

    HCD-GNX780/GNX880 Ver. 1.1 7-23. SCHEMATIC DIAGRAM – EFFECTOR BOARD – • See page 56 for IC Block Diagrams. HCD-GNX780/GNX880...

  • Page 50: Printed Wiring Board - Cdg Board

    HCD-GNX780/GNX880 7-24. PRINTED WIRING BOARD – CDG BOARD – • See page 26 for Circuit Boards Location. : Uses unleaded solder. MAIN BOARD CN504 (Page 36) BOARD MAIN BOARD CN560 (Page 36) IC1001 VIDEO OUT • Semiconductor Location Ref. No.

  • Page 51: Schematic Diagram - Cdg Board

    HCD-GNX780/GNX880 7-25. SCHEMATIC DIAGRAM – CDG BOARD – • See page 57 for IC Block Diagrams. • See page 54 for Waveforms. HCD-GNX780/GNX880...

  • Page 52: Printed Wiring Boards - Power Section

    HCD-GNX780/GNX880 7-26. PRINTED WIRING BOARDS – POWER SECTION – • See page 26 for Circuit Boards Location. : Uses unleaded solder. PRIMARY BOARD AC IN MAIN BOARD NO401 (Page 36) POWER SWITCHING 1-864-932- (12) TRANS BOARD T1200 POWER TRANSFORMER BOARD...

  • Page 53: Schematic Diagram - Power Section

    HCD-GNX780/GNX880 Ver. 1.1 7-27. SCHEMATIC DIAGRAM – POWER SECTION – HCD-GNX780/GNX880...
  • Page 54 HCD-GNX780/GNX880 • IC Block Diagram • WAVEFORMS – DRIVER Board – – PANEL Board – – CD BOARD – – MAIN BOARD – – PANEL BOARD – IC701, 712 BA6956AN IC904 NJM2760V-TE2 IC101 wa IC401 qa IC902 is XC-OUT X OUT...
  • Page 55 HCD-GNX780/GNX880 – BD84 Board – IC301 TC94A34FG-002 CS/RAS/SDO2 LRCKIA AD15/CAS/PD12 BCKIA SDO3/OE SDI0 PO11/BUCK/AD14 LRCKO PO10/CCE/AD13 BCKO PO9/AD12 SDO0 PO08/AD11 VDDM VDDT SRMSTB MIACK VDDT MICK AD10 MIDIO MILP Switch MICS PO07/AD7 STANBY RESET PO06/AD6 PO05/AD5 VDDP Timing Generator...
  • Page 56 HCD-GNX780/GNX880 – EFFECTOR Board – IC1503 TC74LVX4051FT IC1501 M65850FP-E1 OSCILLATOR LPF2 1/2 VCC CLOCK AUTO MAIN 20KBIT RESET RESET CONTROL SRAM LPF1 12 13 14 15 16 IC1506 TC74LVX4052FT 11 12 14 15 16...
  • Page 57 HCD-GNX780/GNX880 – MIC Board – IC1100 TC9488FG VREF VREF VREF POST ADPCM DELAY ADPCM DECODE DRAM ENCODE VREF VREF VOLUME CONTROL – CDG Board – IC1006 NJM2575F1-TE2 SAVE VOUT DRIVER CLAMP...

  • Page 58: Ic Pin Function Description

    HCD-GNX780/GNX880 7-28. IC Pin Function Descriptions • IC101 CXD3059AR (RF AMP) (BD84 BOARD) Pin No. Pin Name Description MIRR Not used (Open) DFCT Not used (Open) Not used (Open) – Ground terminal LOCK Not used (Open) Spindle motor servo control signal output...
  • Page 59 HCD-GNX780/GNX880 Pin No. Pin Name Description AVSS3 – Ground terminal CLTV Multiplier VCO1 control voltage input FILO Master PLL (slave = digital PLL) filter signal output FILI Master PLL filter signal input Master PLL charge pump signal output AVDD5 –...
  • Page 60 HCD-GNX780/GNX880 Pin No. Pin Name Description EXCK SBSO readout clock input XRST System reset signal input from M30622MEP SYSM Muting signal input (Connected to ground) DATA Serial data input from M30622MEP – Ground terminal XLAT Latch signal input from M30622MEP...
  • Page 61 HCD-GNX780/GNX880 Ver. 1.1 • IC401 M30622MEP-A75FPUO SYSTEM CONTROL (MAIN BOARD) Pin No. Pin Name Description XRST Reset signal output to CXD3059AR (“L”: reset) CD-DATA Serial data output to CXD3059AR XLAT Serial data latch signal output to CXD3059AR SIRCS Remote control signal input...
  • Page 62 HCD-GNX780/GNX880 Pin No. Pin Name Description EFFECTOR-S2 Effector circuitry delay time selection bit 2 output NO USE Not used EFFECTOR CTRL 1 Flanger on/off signal output (“H”: on) A-TRIG Deck A side trigger plunger drive signal output (“H”: plunger on)
  • Page 63 HCD-GNX780/GNX880 • IC902 MB90M407PF-G-148E1 DISPLAY CONTROL (PANEL BOARD) Pin No. Pin Name Description 1 to 8 G8 to G1 FLD grid signal output 9, 10 P1,P2 FLD segment signal output VSS-IO – Ground terminal 12 to 22 P3 to P13...

  • Page 64: Exploded Views

    HCD-GNX780/GNX880 SECTION 8 EXPLODED VIEWS NOTE: • The mechanical parts with no reference number • -XX, -X mean standardized parts, so they may The components identified by mark 0 or in the exploded views are not supplied. have some differences from the original one.

  • Page 65: Front Panel Section-1

    HCD-GNX780/GNX880 8-2. FRONT PANEL SECTION-1 not supplied not supplied not supplied Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 2-655-724-01 LID (TC) 2-655-717-01 WINDOW (FL) 2-655-732-01 SPRING (LID) 4-224-104-11 DAMPER 4-252-579-11 HOLDER TC-R A-1156-227-A FUNCTION BOARD, COMPLETE...

  • Page 66: Front Panel Section-2

    HCD-GNX780/GNX880 8-3. FRONT PANEL SECTION-2 not supplied supplied not supplied Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 2-655-711-01 BUTTON (PLAY) 2-655-707-01 ESCUTCHEON (CD) 2-655-713-01 ESCUTCHEON (R) 2-655-709-01 BUTTON (DISC) 2-655-730-01 ESCUTCHEON (MIC) 3-087-053-01 +BVTP2.6 (3CR)

  • Page 67: Chassis Section

    HCD-GNX780/GNX880 Ver. 1.1 8-4. CHASSIS SECTION not supplied (GNX880) not supplied not supplied F1281 not supplied F1241 F1271 not supplied F1261 F1251 not supplied T1200 not supplied Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 0 F1241...

  • Page 68: Cd Mechanism Deck Section-1 (Cdm74Kf-F1Bd84)

    HCD-GNX780/GNX880 8-5. CD MECHANISM DECK SECTION-1 (CDM74KF-F1BD84) M741 CD mechanism deck section-2 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 4-218-253-32 SCREW (M2.6), +BTTP 1-687-132-12 SENSOR BOARD 1-776-182-11 WIRE (FLAT TYPE) (5 CORE) 4-243-820-01 GEAR (TABLE)

  • Page 69: Cd Mechanism Deck Section-2 (Cdm74Kf-F1Bd84)

    HCD-GNX780/GNX880 8-6. CD MECHANISM DECK SECTION-2 (CDM74KF-F1BD84) S711 M751 not supplied not supplied Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 1-471-035-11 MAGNET ASSY X-4955-774-2 PULLEY (SM) ASSY, CHUCKING 4-218-253-52 SCREW (M2.6), +BTTP 4-221-688-01 PULLEY (B), CHUCKING...

  • Page 70: Electrical Parts List

    HCD-GNX780/GNX880 SECTION 9 BD84 ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in the • RESISTORS The components identified by mark 0 parts list may be different from the parts All resistors are in ohms. or dotted line with mark 0 are critical...
  • Page 71 HCD-GNX780/GNX880 BD84 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks < IC > R404 1-216-809-11 METAL CHIP 1/10W R405 1-216-809-11 METAL CHIP 1/10W IC101 8-752-425-12 IC CXD3059AR R406 1-216-809-11 METAL CHIP 1/10W IC251 6-705-808-01 IC BA5947FM-E2...
  • Page 72 HCD-GNX780/GNX880 CD-SW DRIVER Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks CN1003 1-785-314-11 PIN, CONNECTOR (STRAIGHT) 2P < VIBRATOR > < DIODE > X1002 1-795-153-11 VIBRATOR, CRYSTAL (14.31818 MHz) ************************************************************ D1003 6-501-193-01 DIODE 1SS355WTE-17 D1004 6-501-193-01 DIODE 1SS355WTE-17...
  • Page 73 HCD-GNX780/GNX880 Ver. 1.1 DRIVER EFFECTOR Ref. No. Part No. Description Remarks Ref. No. Ref. No. Part No. Part No. Description Description Remarks Remarks R721 1-247-847-91 CARBON 4.7K 1/4W < DIODE > R722 1-247-847-91 CARBON 4.7K 1/4W R723 1-247-847-91 CARBON 4.7K...
  • Page 74 HCD-GNX780/GNX880 Ver. 1.1 EFFECTOR FUNCTION Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R1558 1-216-845-11 METAL CHIP 100K 1/10W R1559 1-216-845-11 METAL CHIP 100K 1/10W < TRANSISTOR > R1560 1-216-845-11 METAL CHIP 100K 1/10W R1565 1-216-825-11 METAL CHIP 2.2K...
  • Page 75 HCD-GNX780/GNX880 MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks D926 6-500-809-01 DIODE SELU5223C-STP15 (VOL 8) C110 1-162-968-11 CERAMIC CHIP 0.0047uF 10% (GNX780) < JUMPER RESISTOR > C110 1-162-970-11 CERAMIC CHIP 0.01uF (GNX880) 1-216-864-11 SHORT CHIP...
  • Page 76 HCD-GNX780/GNX880 Ver. 1.1 MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks C223 1-104-658-91 ELECT 100uF C412 1-164-156-11 CERAMIC CHIP 0.1uF (GNX880) C416 1-104-656-11 ELECT 2200uF 6.3V C230 1-136-497-81 FILM 0.1uF C417 1-100-566-91 CERAMIC CHIP 0.1uF...
  • Page 77 HCD-GNX780/GNX880 Ver. 1.1 MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks * CN507 1-564-710-11 PIN, CONNECTOR (SMALL TYPE) 8P IC561 8-759-394-36 IC BA09T * CN508 1-569-934-11 SOCKET, CONNECTOR 17P IC562 6-702-771-01 IC TA78033LS CN509 1-569-928-11 SOCKET, CONNECTOR 11P...
  • Page 78 HCD-GNX780/GNX880 Ver. 1.1 MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks Q372 6-551-287-01 TRANSISTOR 2SD2704K-T146 R156 1-216-833-11 METAL CHIP 1/10W Q373 6-551-287-01 TRANSISTOR 2SD2704K-T146 (GNX880) Q374 6-551-287-01 TRANSISTOR 2SD2704K-T146 R156 1-216-839-11 METAL CHIP 1/10W Q375...
  • Page 79 HCD-GNX780/GNX880 MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R306 1-216-837-11 METAL CHIP 1/10W R399 1-216-833-11 METAL CHIP 1/10W R307 1-216-857-11 METAL CHIP 1/10W R400 1-216-809-11 METAL CHIP 1/10W R308 1-216-809-11 METAL CHIP 1/10W R401...
  • Page 80 HCD-GNX780/GNX880 Ver. 1.1 MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R483 1-216-809-11 METAL CHIP 1/10W T301 1-433-372-11 TRANSFORMER, BIAS OSCILLATION R484 1-216-809-11 METAL CHIP 1/10W < TERMINAL BOARD > R485 1-216-809-11 METAL CHIP 1/10W...
  • Page 81 HCD-GNX780/GNX880 Ver. 1.1 MOTOR (LD) MOTOR (TB) Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks < IC > 1-687-134-12 MOTOR (TB) BOARD ***************** IC1100 6-709-116-01 IC TC9488FG IC1101 8-759-710-97 IC NJM4565M-D < CONNECTOR > < JACK >...
  • Page 82 HCD-GNX780/GNX880 Ver. 1.1 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks D612 8-719-056-93 DIODE UDZ-TE-17-18B 0 R612 1-245-605-51 FUSIBLE 1/4W D620 6-501-193-01 DIODE 1SS355WTE-17 R613 1-215-872-11 METAL OXIDE 3.3K D624 6-501-193-01 DIODE 1SS355WTE-17 R614 1-215-872-11 METAL OXIDE 3.3K...
  • Page 83 HCD-GNX780/GNX880 Ver. 1.1 PANEL Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R663 1-216-811-11 METAL CHIP 1/10W C906 1-162-960-11 CERAMIC CHIP 220PF 0 R665 1-260-086-31 CARBON 1/2W C908 1-162-960-11 CERAMIC CHIP 220PF (GNX880) C909 1-162-960-11 CERAMIC CHIP...
  • Page 84 HCD-GNX780/GNX880 PANEL Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks C983 1-162-927-11 CERAMIC CHIP 100PF Q914 8-729-027-56 TRANSISTOR DTC143TKA-T146 Q917 8-729-027-50 TRANSISTOR DTC123JKA-T146 C1180 1-162-960-11 CERAMIC CHIP 220PF Q918 8-729-027-50 TRANSISTOR DTC123JKA-T146 Q919 8-729-027-50 TRANSISTOR DTC123JKA-T146 <...
  • Page 85 HCD-GNX780/GNX880 Ver. 1.1 PANEL PRIMARY Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R987 1-216-819-11 METAL CHIP 1/10W C1202 1-164-156-11 CERAMIC CHIP 0.1uF R988 1-216-819-11 METAL CHIP 1/10W C1204 1-164-156-11 CERAMIC CHIP 0.1uF R990 1-216-819-11 METAL CHIP...
  • Page 86 HCD-GNX780/GNX880 Ver. 1.1 PRIMARY SENSOR SURROUND Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks C807 1-100-717-91 CERAMIC CHIP R806 1-216-821-11 METAL CHIP 1/10W (GNX880) (GNX880) C820 1-126-964-11 ELECT 10uF R807 1-216-841-11 METAL CHIP 1/10W (GNX880) (GNX880)
  • Page 87 HCD-GNX780/GNX880 Ver. 1.1 SURROUND TRANS Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks < RELAY > M741 A-1108-965-A MOTOR ASSY, TABLE (TABLE) M751 A-4737-553-A MOTOR ASSY, LOADING RY862 1-755-500-11 RELAY (GNX880) M891 1-787-400-11 D.C. FAN ************************************************************...

  • Page 88: Revision History

    HCD-GNX780/GNX880 REVISION HISTORY Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper right on the revised page allows you to jump to the next revised page. Ver. Date Description of Revision 2006.03...

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