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Sony CDX-GT32W Service Manual

Fm/am compact disc player and fm/mw/sw compact disc player
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SERVICE MANUAL
Ver. 1.0 2007. 07
• The tuner and CD sections have no adjustments.
AUDIO POWER SPECIFICATIONS (CDX-GT32W/GT320)
POWER OUTPUT AND TOTAL HARMONIC DISTORTION
23.2 watts per channel minimum continuous average power into
4 ohms, 4 channels driven from 20 Hz to 20 kHz with no more
than 5% total harmonic distortion.
CD player section
Signal-to-noise ratio
120 dB
Frequency response
10 – 20,000 Hz
Wow and flutter
Below measurable limit
Tuner section
FM
Tuning range
CDX-GT32W/GT320:
87.5 – 107.9 MHz
CDX-GT370/GT370S:
87.5 – 108.0 MHz (at 50 kHz step)
87.5 – 107.9 MHz (at 200 kHz step)
FM tuning interval
CDX-GT370/GT370S:
50 kHz/200 kHz switchable
Antenna terminal
External antenna connector
Intermediate frequency 10.7 MHz/450 kHz
Usable sensitivity
9 dBf
Selectivity
75 dB at 400 kHz
Signal-to-noise ratio
67 dB (stereo), 69 dB (mono)
Harmonic distortion at 1 kHz
0.5% (stereo), 0.3% (mono)
Separation
35 dB at 1 kHz
Frequency response
30 – 15,000 Hz
Sony Corporation
9-887-798-01
eVehicle Division
2007G04-1
Published by Sony Techno Create Corporation
© 2007. 07
CDX-GT32W/GT320/
(Photo: CDX-GT370)
Model Name Using Similar Mechanism
CD Drive Mechanism Type
Optical Pick-up Name
SPECIFICATIONS
AM (CDX-GT32W/GT320)
Tuning range
Antenna terminal
Intermediate frequency 10.7 MHz/450 kHz
Sensitivity
MW (CDX-GT370/GT370S)
Tuning range
MW tuning interval
Antenna terminal
Intermediate frequency 10.7 MHz/450 kHz
Sensitivity
FM/AM COMPACT DISC PLAYER
FM/MW/SW COMPACT DISC PLAYER
GT370/GT370S
US Model
CDX-GT32W/GT320
Canadian Model
CDX-GT32W
E Model
CDX-GT370/GT370S
CDX-GT22W/GT120/GT220
MG-101TC-188//C
DAX-25A
530 – 1,710 kHz
External antenna connector
30 µV
531 – 1,602 kHz (at 9 kHz step)
530 – 1,710 kHz (at 10 kHz step)
9 kHz/10 kHz switchable
External antenna connector
30 µV
– Continued on next page –
CDX-GT32W/GT320
CDX-GT370/GT370S

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  Summary of Contents for Sony CDX-GT32W

  • Page 1 0.5% (stereo), 0.3% (mono) Separation 35 dB at 1 kHz Frequency response 30 – 15,000 Hz FM/AM COMPACT DISC PLAYER CDX-GT32W/GT320 FM/MW/SW COMPACT DISC PLAYER CDX-GT370/GT370S Sony Corporation 9-887-798-01 eVehicle Division 2007G04-1 Published by Sony Techno Create Corporation © 2007. 07...
  • Page 2 THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REPLACE THESE COMPONENTS WITH SONY PARTS REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
  • Page 3: Table Of Contents

    The CLASS 1 LASER PRODUCT label is located on the exterior. SERVICE NOTE ............4 • CDX-GT370/GT370S GENERAL Location of Controls (CDX-GT32W/GT320) ....5 Connections (CDX-GT32W/GT320) ......5 Location of Controls (CDX-GT370/GT370S) ....7 Connections (CDX-GT370/GT370S) ......7 This label is located on the bottom of the chassis. DISASSEMBLY 3-1.
  • Page 4: Service Note

    CDX-GT32W/GT320/GT370/GT370S SECTION 1 SERVICE NOTE EXTENSION CABLE AND SERVICE POSITION When repairing or servicing this set, connect the jig (extension cable) as shown below. • Connect the MAIN board (CNP301) and the SERVO board (CN2) with the extension cable (Part No. J-2502-076-1).
  • Page 5: General

    CDX-GT32W/GT320/GT370/GT370S SECTION 2 GENERAL This section is extracted from instruction manual. • LOCATION OF CONTROL (CDX-GT32W/GT320) Location of controls and basic operations Main unit J DSPL (display)/SCRL (scroll) button The following buttons on the card remote commander have also different buttons/functions (CDX-GT320/GT32W/GT220/GT22W) from the unit.
  • Page 6 CDX-GT32W/GT320/GT370/GT370S CDX-GT320/GT32W Supplied with XA-C40 Fourni avec le XA-C40 Source selector Supplied with the CD/MD changer (not supplied) Fourni avec le changeur de CD/MD Sélecteur de source (non fourni) XA-C40 AUDIO OUT FRONT CDX-GT320 BUS AUDIO IN CDX-GT32W CDX-GT320/GT32W only...
  • Page 7: Location Of Controls (Cdx-Gt370/Gt370S)

    CDX-GT32W/GT320/GT370/GT370S • LOCATION OF CONTROL (CDX-GT370/GT370S) Location of controls and basic operations Main unit J DSPL (display)/SCRL (scroll) button The following buttons on the card remote commander have also different buttons/functions (CDX-GT370S/GT370/GT270S/GT270) from the unit. Remove the insulation film before...
  • Page 8: Connection Diagram

    CDX-GT32W/GT320/GT370/GT370S CDX-GT370S/GT370 CDX-GT370S/GT370 only RCA pin cord (not supplied) AUDIO OUT can be switched SUB or REAR. For details, see the supplied Operating Instructions. Solo CDX-GT370S/GT370 Cable con terminales RCA (no suministrado) AUDIO OUT (salida de audio) puede Supplied with the CD/MD changer...
  • Page 9: Disassembly

    CDX-GT32W/GT320/GT370/GT370S SECTION 3 DISASSEMBLY Note: This set can be disassemble according to the following sequence. 3-1. SUB PANEL ASSY (Page 10) 3-2. CD MECHANISM BLOCK (Page 10) 3-4. SERVO BOARD 3-3. MAIN BOARD (Page 11) (Page 11) 3-5. CHASSIS (T) SUB ASSY (Page 12) 3-6.
  • Page 10: Sub Panel Assy

    CDX-GT32W/GT320/GT370/GT370S Note: Follow the disassembly procedure in the numerical order given. 3-1. SUB PANEL ASSY 3 two claws 2 two claws 1 two screws (+PTT 2.6 × 6) 4 sub panel assy 3-2. CD MECHANISM BLOCK 6 bracket (CD) 7 CD mechanism block 5 two screws (+PTT 2.6 ×...
  • Page 11: Main Board

    CDX-GT32W/GT320/GT370/GT370S 3-3. MAIN BOARD 2 two screws 4 screw (+PTT 2.6 × 8) (+PTT 2.6 × 10) 5 two screws (+P 2.6 × 8) 6 two screws (+PTT 2.6 × 10) 1 three ground point screws (+PTT 2.6 × 6) 7 screw (+P 2.6 ×...
  • Page 12: Chassis (T) Sub Assy

    CDX-GT32W/GT320/GT370/GT370S 3-5. CHASSIS (T) SUB ASSY 2 two precision screws 1 two precision screws (+P 1.7 × 2.2) (+P 1.7 × 2.2) 4 chassis (T) sub assy 3 claw 3-6. ROLLER ARM ASSY 5 roller arm assy 4 gear (RA1)
  • Page 13: Chassis (Op) Assy

    CDX-GT32W/GT320/GT370/GT370S 3-7. CHASSIS (OP) ASSY 6 chassis (OP) assy 1 tension spring (KF) 7 coil spring (damper) (natural) 8 coil spring (damper) (green) 4 slider (R) 3 lever (D) 2 gear (LE1) 3-8. CHUCKING ARM SUB ASSY 3 chucking arm sub assy 1 spring Note: Have this portion receive the chassis.
  • Page 14: Sled Motor Assy

    CDX-GT32W/GT320/GT370/GT370S 3-9. SLED MOTOR ASSY 2 three serration screws (M 2 × 3) 3 sled mtor assy 1 spring turn table spring stand Note: Never remove these parts since they were adjusted. stand Note: Place the stand with care not to touch the turn table.
  • Page 15: Optical Pick-Up Section

    CDX-GT32W/GT320/GT370/GT370S 3-10. OPTICAL PICK-UP SECTION 2 optical pick-up section Note: Be careful not to touch the lens and hologram terminal when removing the optical pick-up section. 3-11. OPTICAL PICK-UP 1 pan tapping screw (M 1.4 × 2.5) 2 leaf spring (sub guide)
  • Page 16: Diagnosis Function

    CDX-GT32W/GT320/GT370/GT370S SECTION 4 DIAGNOSIS FUNCTION Description of the Diagnostics function: 4. Contents of each display mode 4-1. Reset count display mode 1. Setting the Diag display mode With the power off, press the [4] button, [5] button, and [4] button on the set body or the remote control (for more than 2 seconds) in turn.
  • Page 17 CDX-GT32W/GT320/GT370/GT370S 4-5. CD error information display mode 4-6. OFFSET/FAILURE error display mode 4-5-1. Error description 0 6 1 X X X X X 0 5 1 Operating hours Error information Error description Error description Indication Description (in hexadecimal (0: OFFSET, 1: FAILURE)
  • Page 18 CDX-GT32W/GT320/GT370/GT370S MEMO...
  • Page 19: Diagrams

    CDX-GT32W/GT320/GT370/GT370S SECTION 5 DIAGRAMS 5-1. BLOCK DIAGRAM — MAIN SECTION — ELECTRONIC VOLUME IC401 SUBOUT L J330(1/2) REAR SUBOUT R R-CH J330 (2/2) R-CH 2 BUS-LCH AUDIO AUDIO R-CH 1 BUS-RCH R-CH FRONT R-CH I2C BUS CONTROLLED POWER AMP/MULTIPLE GT32W/GT320...
  • Page 20: Block Diagram -Display Section

    CDX-GT32W/GT320/GT370/GT370S 5-2. BLOCK DIAGRAM — DISPLAY SECTION — • NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. SYSTEM CONTROL DISPLAY CONTROL (In addition to this, the necessary note is...
  • Page 21: Printed Wiring Board -Main Section

    CDX-GT32W/GT320/GT370/GT370S 5-3. PRINTED WIRING BOARD — MAIN SECTION — : Uses unleaded solder. J330 GT32W/GT320 CN580 (BUS CONTROL IN) CN601 C330 C331 C464 C444 C434 C775 C774 JW32 FU601 R482 R472 C751 IC750 C765 C764 C771 R432 C763 JW14 C753...
  • Page 22: Schematic Diagram -Main Section (1/4)

    CDX-GT32W/GT320/GT370/GT370S 5-4. SCHEMATIC DIAGRAM — MAIN SECTION (1/4) — • Refer to page 28 for IC Block Diagrams. J330 C403 R330 C330 C331 C464 C454 C444 C434 R332 C402 R333 R331 R431 C431 Q431 R432 C412 IC401 C401 C413 Q451...
  • Page 23: Schematic Diagram -Main Section (2/4)

    CDX-GT32W/GT320/GT370/GT370S 5-5. SCHEMATIC DIAGRAM — MAIN SECTION (2/4) — • Refer to page 28 for IC Block Diagrams. C775 C765 C764 C774 C751 D751 D752 C750 D753 IC B/D D754 JC754 JC755 D755 D756 IC750 D757 D758 C435 C432 CN601...
  • Page 24: Schematic Diagram -Main Section (3/4)

    CDX-GT32W/GT320/GT370/GT370S • Refer to page 20 for Waveforms. 5-6. SCHEMATIC DIAGRAM — MAIN SECTION (3/4) — • Refer to page 29 for IC Pin Description of IC501. (Page 22) (Page 23) D511 R531 R556 R533 R519 R690 R553 R558 C310...
  • Page 25: Schematic Diagram -Main Section (4/4)

    CDX-GT32W/GT320/GT370/GT370S 5-7. SCHEMATIC DIAGRAM — MAIN SECTION (4/4) — • Refer to page 28 for IC Block Diagrams. (Page 23) (Page 22) FB604 C153 C151 C152 R155 IC602 C623 R153 C683 C622 R154 D719 R601 C682 L151 R151 R152 S702...
  • Page 26: Printed Wiring Board -Key Section

    CDX-GT32W/GT320/GT370/GT370S 5-8. PRINTED WIRING BOARD — KEY SECTION — : Uses unleaded solder. LED942 LED941, LED944, LED942, S901 S903 S902 S902 LED931 (LCD BACK LIGHT) R902 R943 LED943 LSW901 LED951 LCD901 LIQUID CRYSTAL DISPLAY PANEL LSW904 LSW903 R901 R948 R905...
  • Page 27: Schematic Diagram -Key Section

    CDX-GT32W/GT320/GT370/GT370S 5-9. SCHEMATIC DIAGRAM — KEY SECTION — R981 R975 LED941 LSW903(2/2) LSW911(2/2) R943 R945 R949 R951 LED951 R931 R982 IC971 R932 LSW905(2/2) R933 LED944 C971 LSW901(2/2) LSW908(2/2) LSW910(2/2) R941 R947 R971 LED931 R942 LED945 LSW902(2/2) LSW904(2/2) LSW906(2/2) LSW909(2/2) R953...
  • Page 28 CDX-GT32W/GT320/GT370/GT370S • IC Block Diagrams IC401 BD3442FS-E2 (MAIN Board (1/4)) IC750 TDA8588AJ/N2/R1 (MAIN Board (2/4)) BUS-L 32 FIL VCC2 OUT-FL- C BUS 100k 31 GND BUS-R OUT-FL+ INPUT INPUT VOLUME1 TREBLE VOLUME2 100k SELECTOR GAIN /MUTE /BASS TU-L 3 30 SDA...
  • Page 29 CDX-GT32W/GT320/GT370/GT370S • IC PIN DESCRIPTIONS • IC501 MB90F045PF-G-9058-SPE1 (SYSTEM CONTROL) (MAIN BOARD (3/4)) Pin No. Pin Name Pin Description AREASEL0 Destination function setting pin 0 AREASEL1 Destination function setting pin 1 AREASEL2 Destination function setting pin 2 AREASEL3 Destination function setting pin 3...
  • Page 30 CDX-GT32W/GT320/GT370/GT370S Pin No. Pin Name Pin Description Not used. (Open) UNISI S-BUS data signal input UNISO S-BUS data signal output UNISCK S-BUS clock signal output Not used. (Open) ILLUMI SEL Illumination voltage setting signal input “H”: 10.4 V, “L”: 9.0 V Not used.
  • Page 31: Exploded Views

    CDX-GT32W/GT320/GT370/GT370S SECTION 6 EXPLODED VIEWS NOTE: • The mechanical parts with no reference • -XX and -X mean standardized parts, so The components identified by mark 0 or dotted line with mark number in the exploded views are not supplied.
  • Page 32: Front Panel Section

    A-1309-245-A PANEL COMPLETE ASSY, FRONT (GT370S) 3-214-215-01 PANEL, BACK X-2178-983-1 BUTTON ASSY (S) 3-250-543-91 SCREW (+B P-TITE M2) 3-251-320-01 EMBLEM (NO. 2.5), SONY J901 1-820-624-11 SMALL TYPE JACK (VERTICAL) (AUX) X-2179-122-1 PANEL (SV) ASSY, FRONT (GT32W) LCD901 1-802-508-11 DISPLAY PANEL, LIQUID CRYSTAL...
  • Page 33: Cd Mechanism Section (Mg-101Tc-188//C)

    CDX-GT32W/GT320/GT370/GT370S 6-3. CD MECHANISM SECTION (MG-101TC-188//C) 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. Description Remark Ref. No. Part No. Description Remark A-1283-704-A MECHANICAL BLOCK ASSY (08) 3-348-998-31 SCREW (M1.4X2.5), TAPPING, PAN...
  • Page 34: Electrical Parts List

    CDX-GT32W/GT320/GT370/GT370S SECTION 7 ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in • Items marked “*” are not stocked since The components identified by mark 0 or dotted line with mark the parts list may be different from the they are seldom required for routine service.
  • Page 35 CDX-GT32W/GT320/GT370/GT370S MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R931 1-216-812-11 METAL CHIP 1/10W C151 1-126-960-11 ELECT R932 1-216-812-11 METAL CHIP 1/10W C152 1-126-960-11 ELECT R933 1-216-812-11 METAL CHIP 1/10W C153 1-126-961-11 ELECT 2.2uF R934 1-216-822-11 METAL CHIP 1.2K...
  • Page 36 CDX-GT32W/GT320/GT370/GT370S MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C519 1-107-826-11 CERAMIC CHIP 0.1uF D751 6-501-362-01 DIODE 1A4-TA26 C522 1-162-970-11 CERAMIC CHIP 0.01uF D752 6-501-362-01 DIODE 1A4-TA26 C523 1-162-970-11 CERAMIC CHIP 0.01uF D753 6-501-362-01 DIODE 1A4-TA26...
  • Page 37 CDX-GT32W/GT320/GT370/GT370S MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark Q461 8-729-027-44 TRANSISTOR DTC114TKA-T146 R509 1-216-813-11 METAL CHIP 1/10W Q471 6-551-856-01 TRANSISTOR LTC614TKFP8T146 R510 1-216-821-11 METAL CHIP 1/10W Q478 8-729-027-43 TRANSISTOR DTC114EKA-T146 R511 1-216-821-11 METAL CHIP...
  • Page 38 CDX-GT32W/GT320/GT370/GT370S MAIN SERVO Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R601 1-216-845-11 METAL CHIP 100K 1/10W ACCESSORIES R631 1-249-425-11 CARBON 4.7K 1/4W ************ R632 1-216-841-11 METAL CHIP 1/10W R633 1-216-841-11 METAL CHIP 1/10W 1-479-077-13 REMOTE COMMANDER (RM-X151)
  • Page 39 CDX-GT32W/GT320/GT370/GT370S MEMO...
  • Page 40 CDX-GT32W/GT320/GT370/GT370S REVISION HISTORY Clicking the version allows you to jump to the revised page. Also, clicking the version at the top of the revised page allows you to jump to the next revised page. Ver. Date Description of Revision 2007. 07...

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Cdx-gt370Cdx-gt320Cdx-gt370s