Sony CDX-GT23W Service Manual
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Sony CDX-GT23W Service Manual

Sony CDX-GT23W Service Manual

Fm/am compact disc player
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CDX-GT23W/GT24/GT24EE
SERVICE MANUAL
Ver. 1.0 2008.07
• The tuner and CD sections have no adjustments.
CD player section
Signal-to-noise ratio: 120 dB
Frequency response: 10 – 20,000 Hz
Wow and fl utter: Below measurable limit
Tuner section
FM
Tuning range:
CDX-GT23W
87.5 – 107.9 MHz
CDX-GT24
87.5 – 108.0 MHz
CDX-GT24EE
FM1/FM2: 87.5 – 108.0 MHz
(at 50 kHz step)
FM3: 65 – 74 MHz
(at 30 kHz step)
Antenna (aerial) terminal:
External antenna (aerial) connector
Intermediate frequency: 150 kHz
Usable sensitivity: 10 dBf
Selectivity: 75 dB at 400 kHz
Signal-to-noise ratio: 70 dB (mono)
Separation: 40 dB at 1 kHz
Frequency response: 20 – 15,000 Hz
AM (CDX-GT23W)
Tuning range: 530 – 1,710 kHz
Antenna (aerial) terminal:
External antenna (aerial) connector
Intermediate frequency: 25 kHz
Sensitivity: 26 μV
Sony Corporation
9-889-222-01
2008G04-1
Audio&Video Business Group
©
2008.07
Published by Sony Techno Create Corporation
(Photo: CDX-GT23W)
Model Name Using Similar Mechanism
CD Drive Mechanism Type
Optical Pick-up Name
SPECIFICATIONS
MW/LW (CDX-GT24/GT24EE)
Tuning range:
MW: 531 – 1602 kHz
LW: 153 – 279 kHz
Antenna (aerial) terminal:
External antenna (aerial) connector
Intermediate frequency: 25 kHz
Sensitivity: MW: 26 μV, LW: 45μV
Power amplifi er section
Outputs: Speaker outputs (sure seal connectors)
Speaker impedance: 4 – 8 ohms
Maximum power output: 45 W × 4 (at 4 ohms)
General
Outputs:
Audio outputs terminal (sub/rear switchable)
(CDX-GT23W only)
Power antenna (aerial) relay control terminal
Power amplifi er control terminal
(CDX-GT23W only)
FM/AM COMPACT DISC PLAYER
FM/MW/LW COMPACT DISC PLAYER
US Model
Canadian Model
CDX-GT23W
Russian Model
CDX-GT24/GT24EE
CDX-GT33W/GT330
MG-101L-188//C
DAX-25A
Inputs:
Antenna (aerial) input terminal
AUX input jack (stereo mini jack)
Tone controls:
Low: ±10 dB at 60 Hz (XPLOD)
Mid: ±10 dB at 1 kHz (XPLOD)
High: ±10 dB at 10 kHz (XPLOD)
Power requirements: 12 V DC car battery
(negative ground (earth))
Power supply voltage: 11 – 16 V
Dimensions: Approx. 178 × 50 × 179 mm
× 2 × 7
1
1
(7
/
/
in.) (w/h/d)
8
8
Mounting dimensions: Approx.
182 × 53 × 162 mm
× 2
× 6
1
1
1
(7
/
/
/
in.) (w/h/d)
4
8
2
Mass: Approx. 1.2 kg (2 lb 11 oz)
Supplied accessories:
Parts for installation and connections (1 set)
Design and specifi cations are subject to change
without notice.
CDX-GT23W
CDX-GT24/GT24EE

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  • Page 1 Tuning range: 530 – 1,710 kHz Antenna (aerial) terminal: CDX-GT24/GT24EE External antenna (aerial) connector Intermediate frequency: 25 kHz FM/MW/LW COMPACT DISC PLAYER Sensitivity: 26 μV Sony Corporation 9-889-222-01 2008G04-1 Audio&Video Business Group © 2008.07 Published by Sony Techno Create Corporation...
  • Page 2 THESE COMPONENTS WITH SONY PARTS PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DON- WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS NÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. PUBLIÉS PAR SONY.
  • Page 3 CDX-GT23W/GT24/GT24EE • CD Play back UNLEADED SOLDER You can play CD-DA (also containing CD TEXT) and CD- Boards requiring use of unleaded solder are printed with the lead- R/CD-RW (MP3/WMA fi les). free mark (LF) indicating the solder contains no lead.

  • Page 4: Table Of Contents

    CDX-GT23W/GT24/GT24EE TABLE OF CONTENTS SERVICING NOTES DIAGRAMS ..........4-1. Block Diagram –Main Section– ........17 4-2. Block Diagram –Display Section– ......... 18 GENERAL 4-3. Printed Wiring Board –Main Section– ......19 Location of Controls ............4-4. Schematic Diagram –Main Section (1/3)– ...... 20 Connections ..............
  • Page 5 CDX-GT23W/GT24/GT24EE 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 (CN401) with the extension cable (Part No. J-2502-076-1).

  • Page 6: General

    CDX-GT23W/GT24/GT24EE SECTION 2 This section is extracted GENERAL from instruction manual. • LOCATION OF CONTROLS CDX-GT23W Location of controls and basic operations Main unit (front panel release) button page 4 DSPL (display)/SCRL (scroll) button page 8 To change display items (press); scroll the display item (press and hold).

  • Page 7: Connections

    CDX-GT23W/GT24/GT24EE • CONNECTIONS CDX-GT23W: RCA pin cord (not supplied) AUDIO OUT can be switched SUB or REAR. For details, see the supplied Operating Instructions. Cordon à broche RCA (non fourni) REAR/SUB from car antenna (aerial) AUDIO OUT AUDIO OUT peut être commuté sur SUB ou à...
  • Page 8 CDX-GT23W/GT24/GT24EE CDX-GT24/GT24EE: * Примечание о подсоединении антенны * Примітка щодо підключення радіоантени Если антенна в Вашем автомобиле Якщо автомобільна радіоантена належить относится к типу, утвержденному типу до типу ISO (Міжнародна організація ISO (Международной организацией по зі стандартизації), для її підключення...

  • Page 9: Disassembly

    CDX-GT23W/GT24/GT24EE SECTION 3 DISASSEMBLY Note: This set can be disassembled in order shown below. 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-GT23W/GT24/GT24EE Note: Follow the disassembly procedure in the numerical order shown below. 3-1. SUB PANEL ASSY two claws two claws two screws (+PTT 2.6 × 6) sub panel assy 3-2. CD MECHANISM BLOCK bracket (CD) CD mechanism block two screws (+PTT 2.6 ×...

  • Page 11: Main Board

    CDX-GT23W/GT24/GT24EE 3-3. MAIN BOARD two screws (+PTT 2.6 × 8) two screws (+P 2.6 × 8) two screws (+PTT 2.6 × 10) three ground point screws screw (+PTT 2.6 × 6) (+P 2.6 × 10) screw (+PTT 2.6 × 10)

  • Page 12: Chassis (T) Sub Assy

    CDX-GT23W/GT24/GT24EE 3-5. CHASSIS (T) SUB ASSY two precision screws (+P 1.7 × 2.2) two precision screws (+P 1.7 × 2.2) chassis (T) sub assy claw 3-6. ROLLER ARM ASSY roller arm assy gear (RA1) spring (RAL) washer spring (RAR)

  • Page 13: Chassis (Op) Assy

    CDX-GT23W/GT24/GT24EE 3-7. CHASSIS (OP) ASSY chassis (OP) assy tension spring (KF) coil spring (damper) (natural) coil spring (damper) (green) slider (R) lever (D) gear (LE1) 3-8. CHUCKING ARM SUB ASSY chucking arm sub assy spring Note: Have this portion receive the chassis.

  • Page 14: Sled Motor Assy

    CDX-GT23W/GT24/GT24EE 3-9. SLED MOTOR ASSY three serration screws (M 2 × 3) sled motor assy 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-GT23W/GT24/GT24EE 3-10. OPTICAL PICK-UP SECTION 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 pan tapping screw (M 1.4 × 2.5) leaf spring (sub guide) leaf spring (OP)
  • Page 16 CDX-GT23W/GT24/GT24EE MEMO...

  • Page 17: Diagrams

    CDX-GT23W/GT24/GT24EE SECTION 4 DIAGRAMS 4-1. BLOCK DIAGRAM – MAIN SECTION – ELECTRONIC VOLUME J330 IC401 AUDIO SUBOUT- L R-CH REAR/SUB J901 SUBOUT R R-CH 9 AUX-L R-CH (AUX) R-CH 7 AUX-R I2C BUS CONTROLLED POWER AMP MUTE /MULTIPLE VOLTAGE REGULATOR...

  • Page 18: Block Diagram -Display Section

    CDX-GT23W/GT24/GT24EE 4-2. BLOCK DIAGRAM – DISPLAY SECTION – THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.) SYSTEM CONTROL LCD DRIVE IC501 (2/2) IC901 For Printed Wiring Boards.

  • Page 19: Printed Wiring Board -Main Section

    CDX-GT23W/GT24/GT24EE 4-3. PRINTED WIRING BOARD – MAIN SECTION – : Uses unleaded solder. GT23W J330 AUDIO OUT REAR/SUB JW122 CN601 C464 C774 C775 C454 JW32 FU601 R472 R482 C764 C771 C751 C765 IC750 R432 Q471 C763 R442 C753 JW14 C617...

  • Page 20: Schematic Diagram -Main Section (1/3)

    CDX-GT23W/GT24/GT24EE 4-4. SCHEMATIC DIAGRAM – MAIN SECTION (1/3) – • See page 25 for IC Block Diagrams. JC754 JC755 C765 C754 C761 C758 C776 C751 C764 C771 C753 C775 C774 IC B/D IC750 CN601 C752 D760 C770 C618 C763 D762...

  • Page 21: Schematic Diagram -Main Section (2/3)

    CDX-GT23W/GT24/GT24EE 4-5. SCHEMATIC DIAGRAM – MAIN SECTION (2/3) – • See page 18 for Waveform. • See page 26 for IC Block Diagrams. IC B/D J330 JC53 JC51 IC51 C464 C454 C442 C445 IC B/D C432 VDR1 C435 C452 C455...

  • Page 22: Schematic Diagram -Main Section (3/3)

    CDX-GT23W/GT24/GT24EE 4-6. SCHEMATIC DIAGRAM – MAIN SECTION (3/3) – • See page 18 for Waveforms. • See page 28 for IC Pin Description of IC501. (Page 20) (Page 21) JC303 R636 R531 R534 R563 R556 C504 R557 C522 C523 R530...

  • Page 23: Printed Wiring Boards -Key Section

    CDX-GT23W/GT24/GT24EE 4-7. PRINTED WIRING BOARD – KEY SECTION – : Uses unleaded solder. LED942, LED941, LED942 LED944, S902 S901 S903 S902 LED931 (LCD BACK LIGHT) S901 R902 R943 S903 LED943 LCD901 LSW901 LIQUID CRYSTAL DISPLAY PANEL LSW904 LSW903 R948 R905...

  • Page 24: Schematic Diagram -Key Section

    CDX-GT23W/GT24/GT24EE 4-8. SCHEMATIC DIAGRAM – KEY SECTION – R931 LED941 R945 R949 R951 R981 R943 R932 R982 LSW903(2/2) LSW905(2/2) LSW911(2/2) R933 R941 LED944 LSW901(2/2) LSW906(2/2) LSW908(2/2) LSW910(2/2) R942 R947 LED931 C981 C983 R984 C984 R985 IC901 R986 R987 LED945 LSW904(2/2)
  • Page 25 CDX-GT23W/GT24/GT24EE • IC Block Diagrams IC750 TDA8589AJ/N2/R1 (MAIN Board (1/3)) OUT–FL– C BUS OUT–FL+ OUT–RL– PGND1 OUT–RL+ IN–RL IN–FL S–GND PROTECTION/ DIAGNOSTIC IN–FR IN–RR BEEP OUT–RR+ PGND3 OUT–RR– OUT–FR+ STANDBY/ MUTE OUT–FR– CHIP DETECT/ PGND4 DIAGNOSTIC BATTERY TEMPERATURE DIAG DETECTION...
  • Page 26 CDX-GT23W/GT24/GT24EE IC1 TEF6607T/V3/S470, 518 (MAIN Board (2/3)) AMRFIN 1 AMOUT2 AMOUT1 AMRFDEC 2 TUNER AMIFAGC1 FMIN2 3 AMSELIN2 TUNER FMIN1 4 AMSELIN1 GNDRF 5 VCC+8.5V 6 TESTCT VCOREF AMRFAGC 7 TUNING VCOLOOP LOUT 8 STEREO DECODER SYSTEM HIGH CUT VCCVCO...
  • Page 27 CDX-GT23W/GT24/GT24EE IC401 BD3442FS-E2 (MAIN Board (2/3)) BUS-L VCC2 32 FIL 100k 31 GND BUS-R INPUT INPUT VOLUME1 TREBLE VOLUME2 100k SELECTOR GAIN /MUTE /BASS TU-L 3 30 SDA /MIDDLE 100k LOGIC 29 SCL TU-R 28 MUTE 100k CD-L 27 VCC...
  • Page 28 Liquid crystal display panel serial clock signal output NOSE SW Panel detection signal input SIRCS Remote control signal input Not used. UNISO SONY BUS serial data signal output UNISI SONY BUS serial data signal input UNISCK SONY BUS serial clock signal output BYTE Connect to ground.
  • Page 29 CDX-GT23W/GT24/GT24EE Pin No. Pin Name Description AREASEL 3 Destination setting pin 3 AREASEL 2 Destination setting pin 2 AREASEL 1 Destination setting pin 1 AREASEL 0 Destination setting pin 0 73 to 80 Not used. (Open) RE IN1 Rotary encoder signal input 1...

  • Page 30: Exploded Views

    CDX-GT23W/GT24/GT24EE SECTION 5 EXPLODED VIEWS Note: • -XX and -X mean standardized parts, so • The mechanical parts with no reference The components identifi ed by mark 0 they may have some difference from the number in the exploded views are not sup- or dotted line with mark 0 are critical for original one.

  • Page 31: Front Panel Section

    X-2178-983-1 BUTTON ASSY (S) (GT23W) 3-214-226-11 ILLUMINATOR (LCD) X-2178-987-1 BUTTON ASSY (S) (GT24/GT24EE) 3-214-215-01 PANEL, BACK 3-251-320-01 EMBLEM (NO. 2.5), SONY 3-250-543-91 SCREW (+B P-TITE M2) A-1548-641-A PANEL SUB ASSY, FRONT (GT23W) J901 1-822-148-11 SMALL TYPE JACK (VERTICAL) (AUX) A-1549-327-A...

  • Page 32: Cd Mechanism Section (Mg-101L-188/C)

    CDX-GT23W/GT24/GT24EE 5-3. CD MECHANISM SECTION (MG-101L-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...

  • Page 33: Electrical Parts List

    CDX-GT23W/GT24/GT24EE SECTION 6 ELECTRICAL PARTS LIST Note: • Due to standardization, replacements in • RESISTORS When indicating parts by reference num- the parts list may be different from the All resistors are in ohms. ber, please include the board. parts specifi ed in the diagrams or the com- METAL: Metal-fi...
  • Page 34 CDX-GT23W/GT24/GT24EE MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark LSW911 1-786-805-13 SWITCH, TACTILE (WITH LED) (6/PAUSE) R949 1-216-809-11 METAL CHIP 1/10W (GT23W/GT24) (GT23W/GT24) LSW911 1-786-806-13 SWITCH, TACTILE (WITH LED) (6/PAUSE) R950 1-216-807-11 METAL CHIP 1/10W...
  • Page 35 CDX-GT23W/GT24/GT24EE MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-100-742-11 CERAMIC CHIP 2.2uF C431 1-126-964-11 ELECT 10uF 1-125-891-11 CERAMIC CHIP 0.47uF C432 1-165-908-11 CERAMIC CHIP 1uF 1-107-826-11 CERAMIC CHIP 0.1uF C435 1-165-908-11 CERAMIC CHIP 1uF...
  • Page 36 CDX-GT23W/GT24/GT24EE MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C758 1-124-261-00 ELECT 10uF IC501 6-808-268-02 IC R5F3640DDA08FA C761 1-126-176-11 ELECT 220uF IC602 6-709-458-01 IC XC61CN2802NR C763 1-127-715-11 CERAMIC CHIP 0.22uF IC681 6-711-670-01 IC XC6218P332PR C764 1-115-340-11 CERAMIC CHIP 0.22uF...
  • Page 37 CDX-GT23W/GT24/GT24EE MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-216-829-11 METAL CHIP 4.7K 1/10W R513 1-216-845-11 METAL CHIP 100K 1/10W 1-216-009-11 METAL CHIP 1/10W R514 1-216-845-11 METAL CHIP 100K 1/10W 1-216-809-11 METAL CHIP 1/10W R519...
  • Page 38 CDX-GT23W/GT24/GT24EE MAIN SERVO Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R636 1-216-845-11 METAL CHIP 100K 1/10W PARTS FOR INSTALLATION AND CONNECTIONS R661 1-216-821-11 METAL CHIP 1/10W ************************************** R662 1-216-833-11 METAL CHIP 1/10W R663 1-216-821-11 METAL CHIP...
  • Page 39 CDX-GT23W/GT24/GT24EE MEMO...
  • Page 40 CDX-GT23W/GT24/GT24EE REVISION HISTORY Checking 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 2008.07...

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