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Sony HCD-GX450 Service Manual
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Sony HCD-GX450 Service Manual

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SERVICE MANUAL
Ver. 1.2 2005.08
• HCD-GX450 is the tuner, deck, CD and
amplifier section in MHC-GX450.
Amplifier section
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION:
With 6 ohm loads, both channels driven, from
120 – 10,000 Hz: rated 125 watts per channel
minimum RMS power, with no more than 10%
total harmonic distortion from 250 milliwatts to
rated output.
Front speaker
Continuous RMS power output (reference):
125 + 125 watts (6 ohms at
1 kHz, 10% THD)
Total harmonic distortion less than 0.07% (6 ohms at
1 kHz, 60 W)
Sub woofer
Continuous RMS power output (reference):
150 watts (6 ohms at
50 Hz, 10% THD)
Total harmonic distortion less than 0.07% (6 ohms at
50 Hz, 75 W)
CD player section
System
Compact disc and digital
audio system
Sony Corporation
9-877-534-03
2005H16-1
Personal Audio Group
© 2005.08
Published by Sony Engineering Corporation
HCD-GX450
Model Name Using Similar Mechanism
CD
CD Mechanism Type
Section
Optical Pick-up Name
Tape deck
Model Name Using Similar Mechanism
Section
Tape Transport Mechanism Type
SPECIFICATIONS
Laser
Semiconductor laser
(λ=780 nm)
Emission duration:
continuous
Frequency response
2 Hz – 20 kHz (±0.5 dB)
Wavelength
780 – 790 nm
Signal-to-noise ratio
More than 90 dB
Dynamic range
More than 90 dB
Tape deck section
Recording system
4-track 2-channel, stereo
Frequency response
50 – 13,000 Hz (±3 dB),
using Sony TYPE I
cassettes
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range
87.5 – 108.0 MHz
(100-kHz step)
Antenna
FM lead antenna
Antenna terminals
75 ohms unbalanced
Intermediate frequency
10.7 MHz
MINI HI-FI COMPONENT SYSTEM
US Model
Canadian Model
Former Type Models
New Type Models
New
New
CDM74-F1BD81
CDM74KF-K6BD81C
KSM-215DCP/C2NP
KSM-213DCP/C2NP
New
New
CWM43FF-05
CWM43FF-05
AM tuner section
Tuning range
530 – 1,710 kHz
(with the tuning interval
set at 10 kHz)
531 – 1,710 kHz
(with the tuning interval
set at 9 kHz)
Antenna
AM loop antenna
Antenna terminals
External antenna terminal
Intermediate frequency
450 kHz
General
Power requirements
120 V AC, 60 Hz
Power consumption
USA models:
265 watts
Canadian models:
330 VA
Dimensions (w/h/d) incl. projecting parts and controls
Amplifier/Tuner/Tape/CD section:
Approx. 280 × 327 ×
425 mm
Mass
Approx. 10.0 kg
Design and specifications are subject to change
without notice.

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  • Page 1 HCD-GX450 SERVICE MANUAL US Model Canadian Model Ver. 1.2 2005.08 • HCD-GX450 is the tuner, deck, CD and amplifier section in MHC-GX450. Former Type Models New Type Models Model Name Using Similar Mechanism CD Mechanism Type CDM74-F1BD81 CDM74KF-K6BD81C Section Optical Pick-up Name...

  • Page 2: Leakage Test

    LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.

  • Page 3: Table Of Contents

    HCD-GX450 TABLE OF CONTENTS NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT 1. SERVICING NOTE ·························································· 4 The laser diode in the optical pick-up block may suffer electrostatic 2. GENERAL ·········································································· 6 break-down because of the potential difference generated by the charged electrostatic load, etc.

  • Page 4: Servicing Note

    HCD-GX450 SECTION 1 SERVICING NOTE • SERVICE POSITION -1 (AMP BOARD) To inspect the AMP board, turn both of the front panel and the CD mechanism deck so that the left side of the product faces down. CD mechanism deck...
  • Page 5 HCD-GX450 • SERVICE POSITION -2 (BD81A BOARD) Remove the CD mechanism deck and place it on top of the pedestal as shown. Inspect the BD81A bard in this set up. BD81A board CD mechanism deck...

  • Page 6: General

    HCD-GX450 SECTION 2 GENERAL List of button locations and reference pages How to use this page Illustration number Use this page to find the location of buttons and other TAPE A/B ed (18, 19, 20, 24) parts of the system that are mentioned in the text.

  • Page 7: Setting The Clock

    HCD-GX450 Setting the clock Remote control ALPHABETICAL ORDER BUTTON DESCRIPTIONS Use buttons on the remote for the operation. ?/1 (power) 1 (8, 26) A – E Press ?/1 to turn on the system. m/M (rewind/fast forward) ALBUM – qd (12, 14) 7 (12, 19) Press CLOCK/TIMER SET.

  • Page 8: Disassembly

    HCD-GX450 SECTION 3 DISASSEMBLY Disassemble the unit in the order as shown below. Note: 3-1.COVER (TOP) (Page 9) 3-2.CD DOOR (Page 9) 3-3.FRONT PANEL SECTION (Page 10) 3-5.TAPE MECHANISM DECK, 3-6.PANEL BOARD 3-4.CD MECHANISM DECK (CDM74-F1BD81) GAME JACK BOARD (Page 11)

  • Page 9: Cover (Top)

    HCD-GX450 Note: Follow the disassembly procedure in the numerical order given. 3-1. COVER (TOP) qa two screws (+BVTP 3 × 10) qf cover (top) 6 two screws (Case 3 TP2) cover (Side-L) 8 screw (+BVTP 3 × 10 ) cover (Side-R) 9 screw (+BVTP 3 ×...

  • Page 10: Front Panel Section

    HCD-GX450 3-3. FRONT PANEL SECTION 4 screw (+BVTP 3 × 8 ) 0 connector 3p (CN304C) 8 wire (flat type) 17 core (CN253) 6 connector 2p (CN805) 3 screw (+BVTP 3 × 10) 5 screw (+BVTP 3 × 8 ) qa connector 3p (CN102B) 2 screw (+BVTP 3 ×...

  • Page 11: Tape Mechanism Deck, Game Jack Board

    HCD-GX450 3-5. TAPE MECHANISM DECK, GAME JACK BOARD 3 tape mechanism deck 2 six screws (+BVTP 2.6 × 8) 1 wire (flat type) 13 core (CN602) 5 GAME JACK board 4 two screws (+BVTP 2.6 × 8) 3-6. PANEL BOARD...

  • Page 12: Back Panel Section, Sub-Trans Board

    HCD-GX450 3-7. BACK PANEL SECTION, SUB-TRANS BOARD 9 back panel section 7 connector 8 SUB-TRANS board 2p (CN901) 6 two screws 5 three screws (+BVTT 3 × 10 ) (+BVTT 3 × 10) 1 connector 2p (CN904) 4 two screws 3 connector (+BVTP 3 ×...

  • Page 13: Main Board

    HCD-GX450 3-9. MAIN BOARD 5 MAIN board 2 connector 4p (CN501) 1 connector 10p (CN907) Main board 4 connector 13p (CN441) 3 two screws (+BVTP 3 × 8 ) 3-10. SUB-WOOFER BOARD 1 connector 7p (CN502) 3 two screws (+BVTP 3 × 8 )

  • Page 14: Amp Board

    HCD-GX450 3-11. AMP BOARD 1 two screws (+BVTP 3 × 8 ) 2 screw 3 two screws (+BVTP 3 × 14) (+BVIT 3 × 8R ) 5 heat sink 4 two screws (transistor) 6 AMP board 3-12. BD81A BOARD 3 screw (+BVTP 2.6 ×...

  • Page 15: Connect Board

    HCD-GX450 3-13. CONNECT BOARD 1 wire (flat type) 27 core (CN251) 2 two screws (+BVTP 2.6 × 8 ) 3 CONNECT board 3-14. DRIVER BOARD, SW BOARD 1 two screws (+BTTP (M2.6)) 3 connector 4p (CN703) 4 DRIVER board 5 screw (+BTTP (M2.6))

  • Page 16: Optical Pick-Up (Ksm-215Dcp/C2Np)

    HCD-GX450 3-15. OPTICAL PICK-UP (KSM-215DCP/C2NP) 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 (BVTT M2.6) (insulator) 4 floating screw 8 t wo stoppers (BU) (+PTPWH M2.6)

  • Page 17: Motor (Tb) Board

    HCD-GX450 3-17. MOTOR (TB) BOARD 2 stopper 1 stopper 5 t able motor assy (M741) 3 wire (flat type) 5 core (CN742) 7 MOTOR (TB) board 6 Remove the two solderings of motor. 5 two screws (+BTTP (M2.6)) 3-18. MOTOR (LD) BOARD 2 two screws (+BTTP (M2.6))

  • Page 18: Test Mode

    HCD-GX450 SECTION 4 TEST MODE [Change-over of AM Tuner Step between 9 kHz and 2) Error display 10 kHz] Disc error • A step of AM channels can be changed over between 9 kHz and Display Error 10 kHz. E00D01022...
  • Page 19 HCD-GX450 [PANEL Test Mode] [MC Test Mode] • All fluorecent segments and LEDs are tested. • This mode is used to test the function of the equalizer. • Keyboard check. Procedure: 1. Press ?/1 button to turn the set ON.
  • Page 20 HCD-GX450 [CD Repeat 5 Times Limit Release Mode] Procedure: Press ?/1 button to turn the set ON. Select the function “CD”. Press three buttons x , CD and ENTER simultaneously. The message “LIMIT OFF” is displayed. Press ?/1 button the set OFF.

  • Page 21: Diagrams

    HCD-GX450 SECTION 5 DIAGRAMS Circuit Boards Location THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.) SENSOR board BD81A board Note on Schematic Diagram: Note on Printed Wiring Boards: •...

  • Page 22: Block Diagrams - Panel Section

    HCD-GX450 5-1. BLOCK DIAGRAMS – PANEL SECTION – IC601(1/2) SYSTEM CONTROLLER S641-S650 Q610 FUNCTION STREM-LED1 25 KEY3 DRIVER LED610 S601-S612 FUNCTION 27 KEY1 Q612 STREM-LED3 S621-S630 DRIVER LED612 FUNCTION Q611 26 KEY2 STREM-LED2 DRIVER S851 LED611 9 VOLUME-IN1 Q614 MASTER VOLUME...

  • Page 23: Main Section

    HCD-GX450 – MAIN SECTION – CN443 OVERLOAD/DC SUB-WOOFER SECTION +10V RELAY+ RELAY- IC101 IC441 IC102 JK441 SOUND PROCESSOR POWER AMP BUFFER RY441 CD-L BD/DRIVER 1 CDL VOUT2 Q481,Q482 CD-R SECTION SPEAKER R-CH VOUT1 R-CH OVERLOAD R-CH SWITCH MUTE Q304-Q307 R-CH...
  • Page 24 HCD-GX450 – BD/DRIVER SECTION – OPTICAL PICK-UP BLOCK (KSM-215DCP/C2NP) DETECTOR IC301 IC101 DIGITAL SIGNAL +1.7V PROCESSOR RF AMP +3.3V IC303 SDO0 PCMD1 3.3V LRCKIA LRCK1 LRCK SFSY/LRCK1B VDDM PCMD SDIO BCKIA IC701 BCK1 SBSY/BCK1B (LD)MOTOR DRIVER CN701 CN201 STANBY MP3STB...

  • Page 25: Sub-Woofer Section

    HCD-GX450 – SUB-WOOFER SECTION – IC501 PT-2 SW IN Q502 CN503 SWITCH CONTROL CN501 SW-SIG-IN MAIN Q507 Q501 SECTION SW-LIMIT DETECT OVERCOAR SW-SENCE DETECT Q503 DETECT RY501 CN502 JK501 SUB WOOFER OUT OVERLOAD/DC MAIN SECTION RELAY+ RELAY- Q506,Q505 DETECT...

  • Page 26: Printed Wiring Board - Bd81A Section

    HCD-GX450 5-2. PRINTED WIRING BOARD – BD81A SECTION – • See page 21 for Circuit Boards Location. • : Uses unleaded solder. SPINDLE MOTOR IC303 (LIMIT) IC301 SLED MOTOR IC251 CONNECT IC101 BOARD CN251 (Page 33) • Semiconductor OPTICAL Location PICK-UP Ref.

  • Page 27: Schematic Diagram - Bd81A Section

    HCD-GX450 5-3. SCHEMATIC DIAGRAM – BD81A SECTION – • See page 46 for IC PIN FUNCTION DESCRIPTION. CN101 R307 C134 C125 C307 TP304 TP423 IOP1 TP10 TP11 C151 100k TP424 IOP2 TP12 TP13 2SB1690K TP14 JPO10 TP102 R203 0.001 C143...

  • Page 28: Printed Wiring Board - Cd Mechanism Section

    HCD-GX450 5-4. PRINTED WIRING BOARD – CD MECHANISM SECTION – • See page 21 for Circuit Boards Location. MAIN BOARD CN301 (Page 30) S751 (LEVER SW) CN751 • Semiconductor Location Ref. No. Location D701 D711 IC701 IC712 IC731 E-11 Q731...

  • Page 29: Schematic Diagram - Cd Mechanism Section

    HCD-GX450 5-5. SCHEMATIC DIAGRAM – CD MECHANISM SECTION –...

  • Page 30: Printed Wiring Board - Main Section

    HCD-GX450 5-6. PRINTED WIRING BOARD – MAIN SECTION – • See page 21 for Circuit Boards Location. • : Uses unleaded solder. GAMEJACK DRIVER BOARD BOARD CN801 CN701 (Page 33) (Page 28) TUNER IC371 • Semiconductor Location Ref. No. Location Ref.

  • Page 31: Schematic Diagram – Main Section (1/2)

    HCD-GX450 5-7. SCHEMATIC DIAGRAM – MAIN SECTION (1/2) – Q371 2SC3052 R385 4.7k R151 4.7k Q101 2SC3052 R386 R391 R397 R219 R152 R217 R216 R396 R389 R390 R154 R387 R153 CN309 C235 4.7k 4.7k 4.7k R392 R388 Q102 R218 2SA1235...

  • Page 32: Schematic Diagram - Main Section (1/2)

    HCD-GX450 5-8. SCHEMATIC DIAGRAM – MAIN SECTION (2/2) – Q362 2SC3052 C270 10 50V R362 R361 2.2k R364 Q361 4.7k 2SA1235 R363 4.7k R275 D316 R274 1SS355 Q315 2SC3052 Q314 2SA1235 R323 R253 4.7k C252 R321 C312 4.7k R324 R322...

  • Page 33: Printed Wiring Board - Panel Comb Section

    HCD-GX450 5-9. PRINTED WIRING BOARD – PANEL COMB SECTION – • See page 21 for Circuit Boards Location. • : Uses unleaded solder. PANEL BOARD CN603 (Page 37) (AMS- (AMS+ HML-) HML+) MAIN LED610-LED615 BOARD (ILLUMINATION CN309 LIGHT) (Page 30)

  • Page 34: Schematic Diagram - Panel Comb Section

    HCD-GX450 5-10. SCHEMATIC DIAGRAM – PANEL COMB SECTION – CN254 C830 C831 1000p 1000p SW601 S660 SW ESE24SV J801 ENCORDER JW259 CN251 FB251 JW258 R673 CN804 JW254 C832 JW251 FB252 JW261 C257 W803 JW252 WIRE JW253 CN253 JW255 CN607 CN606...

  • Page 35: Printed Wiring Board - Sub-Woofer Section

    HCD-GX450 5-11. PRINTED WIRING BOARD – SUB-WOOFER SECTION – • See page 21 for Circuit Boards Location. • : Uses unleaded solder. MAIN BOARD BOARD CN306 CN443 (Page 30) (Page 41) IC501 CONTROL SUB WOOFER OUT (IMPEDANCE USE 6–16 ) •...

  • Page 36: Sub-Woofer Section

    HCD-GX450 5-12. SCHEMATIC DIAGRAM – SUB-WOOFER SECTION – IC501 STK404-130S R517 R518 2.2k 1/4W 1/4W Q507 2SC2785 R516 R519 1/2W Q502 2.2k 2SA1175 1/4W R530 1/4W C508 R507 220p 50V 4.7k 1/2W R510 R511 C505 0.22 C516 0.22 R508 JW501 CN503 4.7k...

  • Page 37: Printed Wiring Board - Panel Section

    HCD-GX450 Ver. 1.1 5-13. PRINTED WIRING BOARD – PANEL SECTION – • See page 21 for Circuit Boards Location. • : Uses unleaded solder. CONNECT BOARD (CHASSIS) CN253 (Page 33) (FLUORESCENT INDICATOR TUBE) DISPLAY IC601 DISC 1 GROOVE IC610 ILLUMINATION...

  • Page 38: Schematic Diagram - Panel Section (1/2)

    HCD-GX450 5-14. SCHEMATIC DIAGRAM – PANEL SECTION (1/2) – R704 R706 R708 JW660 R700 R702 JW659 CN605 Q610 DTC143EKA -T146 Q614 Q611 Q612 DTC143EKA- Q615 Q613 DTC143EKA- DTC143EKA- T146 DTC143EKA- DTC143EKA- T146 T146 T146 T146 R698 CN604 D605 1SS355TE-17 JW601...

  • Page 39: Schematic Diagram - Panel Section (2/2)

    HCD-GX450 Ver. 1.1 5-15. SCHEMATIC DIAGRAM – PANEL SECTION (2/2) – • See page 49 for IC PIN FUNCTION DESCRIPTION. FL601 JW812 R785 R783 R782 C623 R781 R780 C622 R779 R778 R710 R712 R777 R719 C620 R718 LED601 3.3k C621 R776 0.022...

  • Page 40: Printed Wiring Board - Trans Section

    HCD-GX450 5-16. PRINTED WIRING BOARD – TRANS SECTION – • See page 21 for Circuit Boards Location. • : Uses unleaded solder. POWER TRANSFORMER POWER TRANSFORMER (MAIN) (SUB) BOARD CN442 (Page 41) MAIN BOARD CN303 (Page 30) Not replaceable built in transformer •...

  • Page 41: Printed Wiring Board - Amp Section

    HCD-GX450 5-17. PRINTED WIRING BOARD – AMP SECTION – • See page 21 for Circuit Boards Location. • : Uses unleaded solder. • Semiconductor Location SPEAKER Ref. No. Location (IMPEDANCE USE 6–16 ) D401 D441 D442 D443 D481 D482 D483...

  • Page 42: Schematic Diagram - Amp Power Section

    HCD-GX450 5-18. SCHEMATIC DIAGRAM – AMP POWER SECTION – PT901 F904 T8.0AL/125V CN905 FH908 FH907 FH910 FH909 F905 CN904 CN903 JW910 T8.0AL/125V FH912 F906 FH911 T3.15AL/125V JW909 JW902 FH914 RY901 F907 FH913 RELAY U T3.15AL/125V R908 D908 1 1/4W 10EDB40-TB3 R902 3.3M...

  • Page 43: Ic Block Diagrams

    HCD-GX450 • IC BLOCK DIAGRAMS IC251 BA5947FM (BD81A BOARD) CH1PUTF CH4OUTR CH1OUTR CH4OUTF CH2OUTF CH3OUTF PIN26 6.5k CH2OUTR CH3OUTR Vref POWVCC POWVCC (ch3, 4) (ch1, 2) 50k 50k 50k 50k CNF4 MUTE 50k 50k Vref PREGND CH2RIN CH3RIN CH3FIN CH2FIN...
  • Page 44 HCD-GX450 IC301 TC94A34FG-002 (BD81A BOARD) LRCKIA BCKIA SDI0 BUCK LRCKO BCKO AD12 SDO0 AD11 VDDM VDDT SRMSTB MIACK VDDT MICK AD10 MIDIO MILP Switch MICS STANBY RESET VDDP Timing Generator...
  • Page 45 HCD-GX450 IC101 BD3401KS2 (MAIN BOARD) VOLOUT2 TNF2 BASS MIDDLE TREBLE TNF1 BBNF2 SUR1 BBIN2 BASS MIDDLE TREBLE SURROUND SUR2 fc=100HZ LINEOUT2 LINEOUT1 BUFFER MIC MIX SAOUT2 VOCAL FADER SAOUT1 SWOUT FILTER 1/2 Vcc GAME L GAME R TUNER L INPUT...

  • Page 46: Ic Pin Function Description

    HCD-GX450 5-19. IC PIN FUNCTION DESCRIPTION • IC101 CXD3059AR (RF AMP) (BD81A BOARD) Pin No Pin Name Description MIRR Mirror signal input/output (Not used) DFCT Defect signal input/output (Not used) Focus OK signal input/output (Not used) — Internal digital ground GFS is sampled at 460Hz;...
  • Page 47 HCD-GX450 Pin No. Pin Name Description CLTV Multiplier VCO1 control voltage input FILO Master PLL (slave = digital PLL) filter output FILI Master PLL filter input Master PLL charge pump output AVDD5 — Analog power supply DDVROUT DC/DC converter output...
  • Page 48 HCD-GX450 Pin No. Pin Name Description SBSO Subcode P to W serial output EXCK SBSO readout clock input XRST System reset Reset when low SYSM Mute input Muted when high D ATA Serial data input from CPU — Internal digital ground...
  • Page 49 HCD-GX450 • IC601 LC876996A-52S4-E (SYSTEM CONTROLLER) (PANEL BOARD) Pin No Pin Name Description O-MP3 CS CS output to CD Digital Processor O-MP3 LP MOTER LP output to CD Digital Processor and Motor signal output I-MP3 ACK SOL-B ACK input from CD Digital Processor and Motor signal input...
  • Page 50 HCD-GX450 Pin No Pin Name Description -VPP — Power supply (-) S8/METER-SW2 FL tube segment signal output S9/METER-SW3 FL tube segment signal output S10/SW1 FL tube segment signal output S11/SW2 FL tube segment signal output S12/SW3 FL tube segment signal output...

  • Page 51: Exploded Views

    4-245-183-61 COVER (SIDE-L) (US) 1-693-631-12 TUNER (FM/AM) 4-245-183-71 COVER (SIDE-L) (CND) 1-400-285-11 F-BEAD, E2515 MRT 4-252-196-21 DOOR, CD 4-245-184-61 COVER (SIDE-R) (US) 3-038-018-01 EMBLEM, SONY 4-245-184-71 COVER (SIDE-R) (CND) 0 PT902 4-244-849-61 COVER (TOP) (US) X-4956-292-1 TRANS ASSY, SUB 4-244-849-71 COVER (TOP) (CND)

  • Page 52: Front Panel Section

    HCD-GX450 6-2. FRONT PANEL SECTION not supplied not supplied not supplied not supplied supplied not supplied not supplied not supplied not supplied not supplied not supplied not supplied not supplied not supplied not supplied not supplied Ref. No. Part No.

  • Page 53: Main Board Section

    HCD-GX450 6-3. MAIN BOARD SECTION not supplied not supplied PT901 not supplied F904 F906 F905 F907 not supplied Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 0 F904 4-242-527-01 S-SCREW, ITC+4-8 R 1-576-537-11 FUSE, GLASS TUBE (DIA.5) (T8.0AL/125V)

  • Page 54: Cd Mechanism Deck Section -1 (Cdm74-F1Bd81)

    HCD-GX450 6-4. CD MECHANISM DECK SECTION -1 (CDM74-F1BD81) M741 CD mechanism deck section-2 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 4-218-253-21 SCREW (M2.6), +BTTP 4-243-820-01 GEAR (TABLE) 1-776-182-11 WIRE (FLAT TYPE) (5 CORE) 4-243-819-01 GEAR (GENEVA)

  • Page 55: Cd Mechanism Deck Section -2 (Cdm74-F1Bd81)

    HCD-GX450 6-5. CD MECHANISM DECK SECTION -2 (CDM74-F1BD81) RE701 M751 not supplied not supplied Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 1-687-135-12 DRIVER BOARD 4-231-189-01 PULLEY (B), CHUCKING 4-218-253-31 SCREW (M2.6), +BTTP X-4955-536-1 HOLDER (213) ASSY...

  • Page 56: Electrical Parts List

    HCD-GX450 SECTION 7 6 STREAM LED ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in the • COILS When indicating parts by reference number, uH: µH parts list may be different from the parts please include the board name.
  • Page 57 HCD-GX450 BD81A Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks < TRANSISTOR > R494 1-249-421-11 CARBON 2.2K 1/4W F 0 R495 1-217-831-11 FUSIBLE 1/4W Q441 8-729-140-84 TRANSISTOR 2SC1841TP-PAFAEA Q442 8-729-140-84 TRANSISTOR 2SC1841TP-PAFAEA 0 R496 1-212-881-11 FUSIBLE...
  • Page 58 HCD-GX450 BD81A Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks C195 1-164-360-11 CERAMIC CHIP 0.1uF R112 1-216-835-11 METAL CHIP 1/10W C196 1-164-360-11 CERAMIC CHIP 0.1uF R113 1-216-821-11 METAL CHIP 1/10W C201 1-128-995-21 ELECT CHIP 100uF R114...
  • Page 59 HCD-GX450 BD81A CONNECT DRIVER GAME JACK H/P JACK MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks < VIBRATOR > R702 1-247-807-31 CARBON 1/4W R711 1-249-417-11 CARBON 1/4W F X171 1-767-408-21 VIBRATOR, CRYSTAL (16.9MHz) R712 1-249-425-11 CARBON 4.7K...
  • Page 60 HCD-GX450 MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks C106 1-130-483-00 MYLAR 0.01uF C177 1-162-945-11 CERAMIC CHIP 22PF C107 1-126-964-11 ELECT 10uF 20.00% 50V C178 1-126-947-11 ELECT 47uF 20.00% 16V C108 1-164-816-11 CERAMIC CHIP 220PF 2.00% 50V...
  • Page 61 HCD-GX450 MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks C275 1-162-949-11 CERAMIC CHIP 47uF 5.00% 50V D308 6-500-522-21 DIODE 10EDB40-TB3 C301 1-130-495-00 MYLAR 0.1uF D309 6-500-522-21 DIODE 10EDB40-TB3 C302 1-130-495-00 MYLAR 0.1uF D310 6-500-522-21 DIODE 10EDB40-TB3...
  • Page 62 HCD-GX450 MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks Q313 8-729-120-28 TRANSISTOR 2SC3052F-T1-LF R154 1-216-833-11 METAL CHIP 1/10W Q314 6-550-289-01 TRANSISTOR 2SA1235F R155 1-216-829-11 METAL CHIP 4.7K 1/10W R156 1-216-853-11 METAL CHIP 470K 1/10W Q315...
  • Page 63 HCD-GX450 MAIN MOTOR (LD) MOTOR (TB) Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R221 1-216-837-11 METAL CHIP 1/10W R344 1-216-837-11 METAL CHIP 1/10W R222 1-216-830-11 METAL CHIP 5.6K 1/10W R345 1-216-833-11 METAL CHIP 1/10W R223...
  • Page 64 HCD-GX450 Ver. 1.1 PANEL Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks PANEL BOARD CN603 1-784-778-11 CONNECTOR, FFC 17P * CN604 1-564-708-11 PIN, CONNECTOR (SMALL TYPE) 6P *********** CN605 1-564-707-11 PIN, CONNECTOR (SMALL TYPE) 5P < CAPACITOR >...
  • Page 65 HCD-GX450 PANEL Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks Q605 8-729-120-28 TRANSISTOR 2SC3052F-T1-LF R650 1-218-867-11 METAL CHIP 6.8K 1/10W R651 1-216-833-11 METAL CHIP 1/10W Q610 8-729-027-55 TRANSISTOR DTC143EKA-T146 R652 1-216-835-11 METAL CHIP 1/10W Q611 8-729-027-55 TRANSISTOR...
  • Page 66 HCD-GX450 Ver. 1.1 PANEL Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R715 1-216-805-11 METAL CHIP 1/10W R775 1-216-809-11 METAL CHIP 1/10W R716 1-216-837-11 METAL CHIP 1/10W R776 1-216-809-11 METAL CHIP 1/10W R717 1-216-827-11 METAL CHIP 3.3K...
  • Page 67 HCD-GX450 PANEL SENSOR SUB-TRANS SUB-WOOFER Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks S648 1-762-875-21 SWITCH, KEYBOARD (X) C507 1-126-967-11 ELECT 47uF 20.00% 50V S649 1-762-875-21 SWITCH, KEYBOARD (x) C508 1-162-286-21 CERAMIC 220PF 10.00% 50V S650...
  • Page 68 HCD-GX450 SUB-WOOFER TRANS VIDEO OUT Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R514 1-249-433-11 CARBON 1/4W < RESISTOR > R515 1-249-437-11 CARBON 1/4W 0 R902 1-219-237-11 SOLID 3.3M 1/2W R516 1-260-087-11 CARBON 1/2W R903 1-249-430-11 CARBON...
  • Page 69 HCD-GX450 US Model Canadian Model SERVICE MANUAL Ver. 1.1 2005.05 SUPPLEMENT-1 Subject: PANEL board changed to suffix-14 from suffix-11 9-877-534-81...
  • Page 70 HCD-GX450 Part number of printed wiring board changed to suffix-14 from suffix-11. It has any difference between suffix-11 and suffix-14. This supplement-1 describes the difference in the two boards. Refer to original service manual (9-877-534-0[ ]) for other information. • How to distinguish...
  • Page 71 HCD-GX450 PRINTED WIRING BOARD – PANEL SECTION (SUFFIX-14) – CONNECT BOARD (CHASSIS) CN253 (Page 33) (FLUORESCENT INDICATOR TUBE) DISPLAY IC601 DISC 1 GROOVE D610 IC610 R864 IC604 ILLUMINATION DISC 2 D608 EQ BQND SURROUND R685 C611 D633 C656 R686 DISC 3...
  • Page 72 HCD-GX450 SCHEMATIC DIAGRAM – PANEL SECTION (1/2)(SUFFIX-14) – R704 R706 R708 R700 JW660 R702 JW659 CN605 Q610 RT1N431C -TP-1 Q614 Q611 Q612 RT1N431C Q615 Q613 RT1N431C RT1N431C RT1N431C RT1N431C -TP-1 -TP-1 -TP-1 -TP-1 -TP-1 R698 CN604 D605 1SS355TE-17 JW601 JW602...
  • Page 73 HCD-GX450 SCHEMATIC DIAGRAM – PANEL SECTION (2/2)(SUFFIX-14) – FL601 JW812 R785 R783 R782 C623 R781 R780 C622 R779 R778 R710 R712 R777 C620 R719 LED601 R718 C621 3.3k SLR325VC-N-T32 R776 0.022 R716 R772 R775 R711 R713 R771 C617 C618 R774...
  • Page 74 HCD-GX450 MEMO HCD-GX450...
  • Page 75 HCD-GX450 ELECTRICAL PARTS LIST PANEL Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark PANEL BOARD (SUFFIX-14) D610 8-719-083-59 DIODE UDZSTE-174.3B D611 8-719-988-61 DIODE 1SS355TE-17 ********************** D613 8-719-988-61 DIODE 1SS355TE-17 < CAPACITOR > D614 8-719-988-61 DIODE 1SS355TE-17...
  • Page 76 HCD-GX450 PANEL Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R605 1-216-829-11 METAL CHIP 4.7K 1/10W R664 1-216-817-11 METAL CHIP 1/10W R665 1-216-819-11 METAL CHIP 1/10W R606 1-216-829-11 METAL CHIP 4.7K 1/10W R666 1-216-821-11 METAL CHIP...
  • Page 77 HCD-GX450 PANEL Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R731 1-216-809-11 METAL CHIP 1/10W S627 1-762-875-21 SWITCH, KEYBOARD (PLAY MODE/TUNING MODE) R732 1-216-853-11 METAL CHIP 470K 1/10W S628 1-762-875-21 SWITCH, KEYBOARD (GAME MIXING) R733 1-216-809-11 METAL CHIP...
  • Page 78 HCD-GX450 MEMO...
  • Page 79 HCD-GX450 US Model Canadian Model SERVICE MANUAL Ver. 1.2 2005.08 SUPPLEMENT-2 Subject: • Addition of ELECTRICAL ADJUSTMENTS • Addition of new type models Note: The new type model can be identified from the old type model from the location of the three printed circuit boards.
  • Page 80 HCD-GX450 TABLE OF CONTENTS DISASSEMBLY 4-7. Printed Wiring Board – CD MECHANISM Section – .. 24 4-8. Schematic Diagram – CD MECHANISM Section – ..25 1-1. Disassembly Flow ............3 4-9. Printed Wiring Board – MAIN Section – ....26 1-2.

  • Page 81: Disassembly

    HCD-GX450 SECTION 1 DISASSEMBLY 1-1. DISASSEMBLY FLOW • This set can be disassembled in the order shown below. 1-2.COVER (TOP) (Page 4) 1-3.CD DOOR (Page 4) 1-4.FRONT PANEL SECTION (Page 5) 1-6.TAPE MECHANISM DECK, 1-7.PANEL BOARD 1-5.CD MECHANISM DECK (CDM74KF-K6BD81C)

  • Page 82: Cover (Top)

    HCD-GX450 Note: Follow the disassembly procedure in the numerical order given. 1-2. COVER (TOP) qa two screws (+BVTP 3 × 10) qd cover (top) 6 two screws (Case 3 TP2) 0 cover (Side-L) 8 screw (+BVTP 3 × 10 )

  • Page 83: Front Panel Section

    HCD-GX450 1-4. FRONT PANEL SECTION 8 wire (flat type) 13 core 4 screw (+BVTP 3 × 8 ) 0 connector 3p (CN065) 6 connector 2p (CN803) 3 screw (+BVTP 3 × 10) 5 screw (+BVTP 3 × 8 ) qa connector 2p (CN201) 2 screw (+BVTP 3 ×...

  • Page 84: Tape Mechanism Deck, Game Jack Board

    HCD-GX450 1-6. TAPE MECHANISM DECK, GAME JACK BOARD 2 tape mechanism deck 1 six screws (+BVTP 2.6 × 8) 3 two screws (+BVTP 2.6 × 8) 4 GAME JACK board 1-7. PANEL BOARD 2 seven claws 3 connector 6p (CN602)

  • Page 85: Back Panel Section, Sub-Trans Board

    HCD-GX450 1-8. BACK PANEL SECTION, SUB-TRANS BOARD 0 back panel section 8 connector 9 SUB-TRANS board 2p (CN901) 7 two screws 6 three screws (+BVTT 3 × 10 ) (+BVTT 3 × 10) 2 connector 2p (CN904) 1 connector 3p (CN906)

  • Page 86: Main Board

    HCD-GX450 1-10. MAIN BOARD 5 MAIN board 2 connector 3p (CN501) 1 connector 10p (CN907) MAIN board 4 connector 13p (CN441) 3 two screws (+BVTP 3 × 8 ) 1-11. SUB-WOOFER BOARD 1 connector 6p (CN502) 3 two screws (+BVTP 3 × 8 )

  • Page 87: Amp Board

    HCD-GX450 1-12. AMP BOARD 2 two screws (+BVTP 3 × 8 ) 3 screw 4 two screws (+BVTP 3 × 14) (+BVIT 3 × 8R ) 6 heat sink 5 two screws (transistor) 7 AMP board 1 connector 3p (CN905) 1-13.

  • Page 88: Driver Board, Sw Board

    HCD-GX450 1-14. DRIVER BOARD, SW BOARD 1 two screws (+BTTP (M2.6)) 2 connector 4p (CN703) 4 DRIVER board 5 screw (+BTTP (M2.6)) CN702 6 SW board 3 board to board CN742 1-15. OPTICAL PICK-UP (KSM-213DCP/C2NP) 1 floating screw (+PTPWH M2.6)

  • Page 89: Sensor Board

    HCD-GX450 1-16. SENSOR BOARD 1 floating screw (+PTPWH M2.6) 2 t ray 8 s crew (+BTTP (M2.6)) 3 b elt (table) 0 SENSOR board 4 floating screw (+PTPWH M2.6) 5 p ulley (table) 6 floating screw 9 connector (+PTPWH M2.6)

  • Page 90: Motor (Ld) Board

    HCD-GX450 1-18. MOTOR (LD) BOARD 2 two screws (+BTTP (M2.6)) 4 Remove the two solderings of motor. 3 MOTOR (LD) board 5 l oading motor assy (M751) 1 b elt (loading)

  • Page 91: Test Mode

    HCD-GX450 SECTION 2 TEST MODE [Change-over of AM Tuner Step between 9 kHz and 2) Error display 10 kHz] Disc error • A step of AM channels can be changed over between 9 kHz and Display Error 10 kHz. E00D01022...
  • Page 92 HCD-GX450 [PANEL Test Mode] [MC Test Mode] • All fluorecent segments and LEDs are tested. • This mode is used to test the function of the equalizer. • Keyboard check. Procedure: 1. Press ?/1 button to turn the set ON.
  • Page 93 HCD-GX450 [CD Repeat 5 Times Limit Release Mode] Procedure: Press ?/1 button to turn the set ON. Select the function “CD”. Press three buttons x , CD and ENTER simultaneously. The message “LIMIT OFF” is displayed. Press ?/1 button the set OFF.

  • Page 94: Electrical Adjustments

    HCD-GX450 SECTION 3 ELECTRICAL ADJUSTMENTS RF signal waveform CD SECTION VOLT/DIV : 200 mV TIME/DIV : 500 ns 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.

  • Page 95: Diagrams

    HCD-GX450 SECTION 4 DIAGRAMS • Circuit Boards Location THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.) For Schematic Diagrams. For Printed Wiring Boards. Note: Note:...

  • Page 96: Block Diagram - Bd/Driver Section

    HCD-GX450 4-1. BLOCK DIAGRAM – BD/DRIVER SECTION – FILTER IC101 (1/2) XTSL CD DSP XTAO X171 CLOCK 51 53 50 52 DETECTOR CD +3V XTAI 16.9344MHz GENERATOR XTACN CD-L RFACO RFACI AOUT1 RFAC ASYMMETRY AUDIO/VIDEO SUMMING DIGITAL PLL DEMODULATOR CORRECTOR...

  • Page 97: Block Diagram - Audio/Video Section

    HCD-GX450 4-2. BLOCK DIAGRAM – AUDIO/VIDEO SECTION – J803 • R-ch is omitted due to same as L-ch. VIDEO • SIGNAL PATH : TUNER J804 : CD VIDEO : TAPE PLAY (DECK A) GEME INPUT : TAPE PLAY (DECK B)

  • Page 98: Block Diagram - Amp Section

    HCD-GX450 4-3. BLOCK DIAGRAM – AMP SECTION – HP IN DBFB J701 R-CH R-CH PHONES AUDIO/VIDEO Section JK441 POWER VOL OUT1 BUFFER IC251 IC441 – SPEAKER MUTING R-CH Q251 (IMPEDANCE USE 6 – 16Ω) – SW OUT STANDBY R-CH SWITCH...

  • Page 99: Block Diagram - Panel Section

    HCD-GX450 4-4. BLOCK DIAGRAM – PANEL SECTION – FL/LED DRIVER SYSTEM CONTROLLER IC701 IC901 (4/4) S1 – S21 XCOUT FL701 X901 36 I-VFD-DATA FLUORESCENT 32.768kHz 35 O-VFD-DATA INDICATOR XCIN SCK1 37 O-VFD-CLK TUBE O-VFD-CE G1 – G13 RESET O-VFD-RESET XOUT...

  • Page 100: Printed Wiring Board - Bd Section

    HCD-GX450 • See page 17 for Circuit Boards Location. 4-5. PRINTED WIRING BOARD – BD SECTION – :Uses unleaded solder. BD BOARD BD BOARD M101 (SIDE B) (SPINDLE) (SIDE A) IC303 S101 (LIMIT) C302 C303 C501 C305 R501 C255 R404...

  • Page 101: Schematic Diagram - Bd Section

    HCD-GX450 • See page 40 for Waveforms. • See page 40, 41 and 42 for IC Block Diagrams. 4-6. SCHEMATIC DIAGRAM – BD SECTION – C131 100p TP423 BD BOARD IOP1 C142 1500p C134 C125 R131 R121 R143 C151 TP10...

  • Page 102: Printed Wiring Board - Cd Mechanism Section

    HCD-GX450 • See page 17 for Circuit Boards Location. 4-7. PRINTED WIRING BOARD – CD MECHANISM SECTION – :Uses unleaded solder. SENSOR BOARD SW BOARD • Semiconductor Location Ref. No. Location CN751 D701 D711 IC731 IC701 IC712 S751 IC731 OPEN/CLOSE...

  • Page 103: Schematic Diagram - Cd Mechanism Section

    HCD-GX450 • See page 42 for IC Block Diagrams. 4-8. SCHEMATIC DIAGRAM – CD MECHANISM SECTION – LOADING MOTOR DRIVE IC701 BA6956AN R702 R701 CN721 CN704 LM-2 LM-2 D701 M751 C751 LM-1 LM-1 MTZJ-T-77 0.01 (LOADING) 5.1A RE701 DISC TRAY...

  • Page 104: Printed Wiring Board - Main Section

    HCD-GX450 • See page 17 for Circuit Boards Location. 4-9. PRINTED WIRING BOARD – MAIN SECTION – :Uses unleaded solder. • Semiconductor Location Ref. No. Location D001 D002 BD BOARD CN201 MAIN BOARD D003 (SUPPLEMENT-2: D004 Page 22) DRIVER BOARD...

  • Page 105: Schematic Diagram - Main Section (1/3)

    HCD-GX450 • See page 40 for Waveforms. • See page 44 for IC Pin Function Description. 4-10. SCHEMATIC DIAGRAM – MAIN SECTION (1/3) – (1/3) CN991 -VFL VFL- D-GND D-GND R953 VDD(EVER) R958 VDD(SWITCHED) STBY-LED STBY VOL-A VOL-B (SUPPLEMENT-2: Page 35)

  • Page 106: Schematic Diagram - Main Section (2/3)

    HCD-GX450 • See page 40 for Waveform. • See page 43 for IC Block Diagram. 4-11. SCHEMATIC DIAGRAM – MAIN SECTION (2/3) – (SUPPLEMENT-2:Page 27) (2/3) Q111,112 BAND-PASS FILTER C114 R107 R108 Q112 R116 2SC3052EF C120 I-MIC C116 0.47 C117...

  • Page 107: Schematic Diagram - Main Section (3/3)

    HCD-GX450 4-12. SCHEMATIC DIAGRAM – MAIN SECTION (3/3) – (SUPPLEMENT-2:Page 27) (3/3) CN381 ANTENNA TU-MUTE R384 T-MU TUNER-R TU-R FN 75Ω TUNER-L TU-L COAXIAL STEREO R387 100 T-ST TUNED R388 100 T-SD TUNER PACK LC72121 CE R383 T-CE JW190 R265...

  • Page 108: Printed Wiring Board - Panel Comb Section

    HCD-GX450 • See page 17 for Circuit Boards Location. 4-13. PRINTED WIRING BOARD – PANEL COMB SECTION – :Uses unleaded solder. SW601 PHONES MAIN D601-D606 BOARD (ILLUMINATION CN061 LIGHT) (SUPPLEMENT-2: Page 26) PANEL PANEL BOARD BOARD CN602 CN605 MASTER VOLUME...

  • Page 109: Schematic Diagram - Panel Comb Section

    HCD-GX450 4-14. SCHEMATIC DIAGRAM – PANEL COMB SECTION – C782 C781 JW701 0.001 0.001 SW601 SW ESE24SV S660 J701 ENCORDER ROTARY D-GND R677 CN701 CONN ASSY (SUPPLEMENT-2: Page 28) CN603 CN607 CONN ASSY CONN ASSY (SUPPLEMENT-2: (SUPPLEMENT-2: Page 35) Page 35)

  • Page 110: Printed Wiring Board - Sub-Woofer Section

    HCD-GX450 • See page 17 for Circuit Boards Location. 4-15. PRINTED WIRING BOARD – SUB-WOOFER SECTION – :Uses unleaded solder. AMP BOARD MAIN BOARD CN443 CN271 (SUPPLEMENT-2: (SUPPLEMENT-2: Page 38) Page 26) IC501 CONTROL SUB WOOFER OUT (IMPEDANCE USE 6-16 ) •...

  • Page 111: Schematic Diagram - Sub-Woofer Section

    HCD-GX450 4-16. SCHEMATIC DIAGRAM – SUB-WOOFER SECTION – IC501 STK404-130S R517 R518 2.2k Q507 2SC3052EF R519 Q502 2.2k 2SA1235TP R506 R516 R507 R522 R530 4.7k C508 CN503 1/4W 220p R523 R521 R510 R511 0.22 0.22 R508 C507 4.7k JR501 C516...

  • Page 112: Printed Wiring Board - Panel Section

    HCD-GX450 • See page 17 for Circuit Boards Location. 4-17. PRINTED WIRING BOARD – PANEL SECTION – :Uses unleaded solder. (FLUORESCENT INDICATOR TUBE) IC610 1-868-188- DISPLAY GROOVE DISC 1 IC701 ILLUMINATION SURROUND EQ BAND DISC 2 TUNER/BAND EFFECT PLAY MODE/...

  • Page 113: Schematic Diagram - Panel Section

    HCD-GX450 • See page 40 for Waveform. • See page 47 for IC Pin Function Description. 4-18. SCHEMATIC DIAGRAM – PANEL SECTION – IC610 RPM7240-H18 CN608 CN610 R619 R620 JR624 C631 FL701 C621 R627 R623 4.7k R628 R625 R621 4.7k...

  • Page 114: Printed Wiring Board - Trans Section

    HCD-GX450 • See page 17 for Circuit Boards Location. 4-19. PRINTED WIRING BOARD – TRANS SECTION – :Uses unleaded solder. SUB-TRANS BOARD • Semiconductor Location Ref. No. Location D901 D902 D903 D904 D905 D906 D908 Q902 (22) 1-865-474- W001 (AC IN)

  • Page 115: Schematic Diagram - Trans Section

    HCD-GX450 4-20. SCHEMATIC DIAGRAM – TRANS SECTION – PT901 MAIN POWER TRANSFORMER CN905 F904 T8.0AL/250V FH908 FH907 CN903 CN904 (SUPPLEMENT-2: NEUTRAL Page 39) FH910 F905 FH909 T8.0AL/250V LIVE JW902 CN907 F906 T3.15AL/250V JW910 JW909 FH912 FH911 PT902 SUB POWER TRANSFORMER RY901 ∗...

  • Page 116: Printed Wiring Board - Amp Section

    HCD-GX450 • See page 17 for Circuit Boards Location. 4-21. PRINTED WIRING BOARD – AMP SECTION – :Uses unleaded solder. JK441 SPEAKER (IMPEDANCE USE 6 – 16Ω) – – AMP BOARD (CHASSIS) MAIN 1-865-472- (22) BOARD CN031 (SUPPLEMENT-2: Page 26)

  • Page 117: Schematic Diagram - Amp Section

    HCD-GX450 4-22. SCHEMATIC DIAGRAM – AMP SECTION – R447 JW422 C441 R441 JW401 2.2k L441 R461 R411 R413 R412 IC441(1/2) STK403-130 L442 JR441 C445 100p R462 R414 R497 R466 R465 Q481,482 Q483,484 R451 100k 100k R416 R415 0.22 DC DETECT...
  • Page 118 HCD-GX450 • IC Block Diagrams • Waveforms – BD Board – – BD Board – – MAIN Board – – PANEL Board – IC101 CXD3059AR IC901 qa IC701 4 (X2) IC101 uj (XTAO) (XCOUT (32.768KHZ)) 119 118 116 115 114...
  • Page 119 HCD-GX450 IC301 TC94A34FG-002 LRCKIA BCKIA SDI0 BUCK LRCKO BCKO AD12 SDO0 AD11 VDDM VDDT SRMSTB MIACK MICK VDDT AD10 MIDIO MILP Switch MICS STANBY RESET VDDP Timing Generator...
  • Page 120 HCD-GX450 IC251 BA5947FM-E2 MUTING + – INTERFACE LEVEL SHIFT INTERFACE INTERFACE VREF IC303 BH15FB1WG THERMAL PROTECTION OVER CURRENT PROTECTION VOLTAGE CONTROL REFERENCE BLOCK – DRIVER Board – IC701, 712 BA6956AN CONTROL LOGIC...

  • Page 121: Main Board

    HCD-GX450 – MAIN Board – IC101 BD3401KS2 56 55 54 53 52 51 48 MNF2 SOFT 47 MOUT2 SWITCH 46 MOUT1 45 MNF1 44 BNF1 43 BOUT1 − 42 BOUT2 41 BNF2 INPUT SELECT − PBNF2 PBOUT2 BUFFER PBOUT1 −...
  • Page 122 HCD-GX450 • IC Pin Function Description MAIN BOARD IC901 M30302MCP-A06FPU0 (SYSTEM CONTROLLER) Pin No. Pin Name Description O-BD3401- Serial data output to the electrical volume DATA O-BD3401-CLK Serial data transfer clock signal output to the electrical volume O-VFD-RESET System reset signal output to the FL/LED driver...
  • Page 123 HCD-GX450 Pin No. Pin Name Description O-MP3-STB Standby signal output to the MP3 decoder I-MP3-REQ Data send request signal input from the MP3 decoder O-MP3-LP Latch pulse signal output to the MP3 decoder O-XLT Latch pulse signal output to the CD DSP Connected to +3.3V...
  • Page 124 HCD-GX450 Pin No. Pin Name Description Auto music sensor detection signal input from the electrical volume I-TAPE-AMS "L": music is present, "H": music is not present I-STREAM Audio signal input for stream LED (A/D input) I-VACS VACS signal input terminal (A/D input)
  • Page 125 HCD-GX450 PANEL BOARD IC701 µPD780232GC-508-8BT-A (FL/LED DRIVER) Pin No. Pin Name Description VDD1 Power supply terminal (+3.3V) VSS1 Ground terminal System clock input terminal (4.19 MHz) System clock output terminal (4.19 MHz) Not used RESET System reset signal input from the system controller "L": reset...

  • Page 126: Exploded Views

    4-245-183-61 CASE (SIDE-L) (US) 1-693-631-31 TUNER (FM/AM) 4-245-183-71 CASE (SIDE-L) (CND) 4-252-196-21 DOOR, CD 4-245-184-61 CASE (SIDE-R) (US) 3-038-018-01 EMBLEM, SONY 4-245-184-71 CASE (SIDE-R) (CND) 1-828-970-11 WIRE (FLAT TYPE) (13 CORE) 4-244-849-61 CASE (TOP) (US) 7-685-647-79 SCREW +BVTP 3X10 TYPE2 IT-3...

  • Page 127: Front Panel Section

    HCD-GX450 5-2. FRONT PANEL SECTION not supplied not supplied not supplied supplied not supplied not supplied not supplied not supplied not supplied not supplied not supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 4-252-202-01 DOOR (B), CASS...
  • Page 128 HCD-GX450 5-3. MAIN BOARD SECTION not supplied not supplied PT901 not supplied F904 F906 F905 F907 not supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 4-900-386-01 SCREW 0 F904 1-533-949-33 FUSE, CYLINDRICAL (TIME LUG) A-1138-207-A AMP BOARD, COMPLETE (T8.0AL/250V)

  • Page 129: Cd Mechanism Deck Section-1

    HCD-GX450 5-4. CD MECHANISM DECK SECION-1 (CDM74KF-K6BD81C) M741 CD mechanism deck section-2 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 4-243-820-01 GEAR (TABLE) 4-218-253-62 SCREW (M2.6), +BTTP 1-776-182-11 WIRE (FLAT TYPE) (5 CORE) 4-243-819-01 GEAR (GENEVA)
  • Page 130 HCD-GX450 5-5. CD MECHANISM DECK SECION-2 (CDM74KF-K6BD81C) RE701 M751 S101 not supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark X-2025-123-1 CHACKING PULLEY (KH) ASSY A-1103-756-A DRIVER BOARD, COMPLETE 4-231-189-01 PULLEY (B), CHUCKING 4-218-253-52 SCREW (M2.6), +BTTP...

  • Page 131: Electrical Parts List

    HCD-GX450 SECTION 6 6 STREAM LED ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in the • COILS When indicating parts by reference number, uH: µH parts list may be different from the parts please include the board name.
  • Page 132 HCD-GX450 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < TRANSISTOR > R480 1-216-845-11 METAL CHIP 100K 1/10W R481 1-216-829-11 METAL CHIP 4.7K 1/10W Q441 6-551-268-01 TRANSISTOR 2SC5625 Q442 6-551-268-01 TRANSISTOR 2SC5625 R482 1-216-833-11 METAL CHIP...
  • Page 133 HCD-GX450 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C163 1-164-360-11 CERAMIC CHIP 0.1uF IC303 6-705-807-01 IC BH15FB1WG C171 1-162-919-11 CERAMIC CHIP 22PF IC501 8-759-058-62 IC TC7S08FU (TE85R) C172 1-162-920-11 CERAMIC CHIP 27PF < TRANSISTOR >...
  • Page 134 HCD-GX450 DRIVER GAME JACK H/P JACK MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R407 1-216-809-11 METAL CHIP 1/10W R751 1-249-425-11 CARBON 4.7K 1/4W R408 1-216-809-11 METAL CHIP 1/10W ************************************************************ R409 1-216-809-11 METAL CHIP 1/10W...
  • Page 135 HCD-GX450 MAIN Ref. No. Ref. No. Part No. Part No. Description Description Remark Remark Ref. No. Part No. Description Remark C181 1-126-960-11 ELECT C105 1-126-960-11 ELECT C182 1-126-960-11 ELECT C106 1-126-960-11 ELECT C183 1-126-960-11 ELECT C109 1-126-960-11 ELECT C110 1-126-960-11 ELECT...
  • Page 136 HCD-GX450 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark D902 8-719-000-07 DIODE MC2836 C910 1-164-156-11 CERAMIC CHIP 0.1uF D910 8-719-988-61 DIODE 1SS355TE-17 C911 1-162-964-11 CERAMIC CHIP 0.001uF D921 6-500-848-01 DIODE MC2840-T112-1 C912 1-162-960-11 CERAMIC CHIP...
  • Page 137 HCD-GX450 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark Q343 6-551-276-01 TRANSISTOR RT1N431C-TP-1 R134 1-216-825-11 METAL CHIP 2.2K 1/10W Q344 8-729-037-13 TRANSISTOR KTA1271Y R135 1-216-821-11 METAL CHIP 1/10W Q345 6-551-276-01 TRANSISTOR RT1N431C-TP-1 R136 1-216-821-11 METAL CHIP...
  • Page 138 HCD-GX450 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R342 1-216-821-11 METAL CHIP 1/10W R205 1-216-833-11 METAL CHIP 1/10W R343 1-216-833-11 METAL CHIP 1/10W R206 1-216-833-11 METAL CHIP 1/10W R344 1-216-821-11 METAL CHIP 1/10W R207...
  • Page 139 HCD-GX450 MAIN MOTOR (LD) MOTOR (TB) PANEL Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-687-134-12 MOTOR (TB) BOARD R928 1-216-809-11 METAL CHIP 1/10W **************** R929 1-216-809-11 METAL CHIP 1/10W R931 1-216-833-11 METAL CHIP 1/10W < CONNECTOR >...
  • Page 140 HCD-GX450 PANEL SENSOR Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R627 1-216-801-11 METAL CHIP 1/10W < SWITCH > R628 1-216-801-11 METAL CHIP 1/10W S601 1-762-875-21 SWITCH, KEYBOARD (?/1) R631 1-216-833-11 METAL CHIP 1/10W S602 1-762-875-21 SWITCH, KEYBOARD (DISPLAY)
  • Page 141 HCD-GX450 SENSOR SUB-TRANS SUB-WOOFER Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < IC > D504 8-719-988-61 DIODE 1SS355TE-17 D507 8-719-988-61 DIODE 1SS355TE-17 IC731 6-600-022-01 IC RPI-576 < IC > ************************************************************ SUB-TRANS BOARD IC501 6-600-091-01 IC STK404-130S **************** <...
  • Page 142 HCD-GX450 SUB-WOOFER TRANS AC1 TRANS AC2 VIDEO OUT Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 0 R534 1-202-972-61 FUSIBLE 1/4W VIDEO OUT BOARD *************** < RELAY > < CONNECTOR > RY501 1-755-307-11 RELAY CN803 1-564-704-11 PIN, CONNECTOR (SMALL TYPE) 2P...
  • Page 143 HCD-GX450 MEMO...

  • Page 144: Revision History

    HCD-GX450 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 2004.03...

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