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SERVICE MANUAL
Ver. 1.1 2009.09
• 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-GT24W/GT240
87.5 – 107.9 MHz
CDX-GT290/GT290S
(E, Argentine, Mexican model)
87.5 – 108.0 MHz (at 50 kHz step)
87.5 – 107.9 MHz (at 200 kHz step)
(Saudi Arabia model)
87.5 – 108.0 MHz
FM tuning interval:
(E, Argentine, Mexican model)
50 kHz/200 kHz switchable
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-GT24W/GT240)
Tuning range: 530 – 1,710 kHz
Antenna (aerial) terminal:
External antenna (aerial) connector
Intermediate frequency: 25 kHz
Sensitivity: 26 μV
Sony Corporation
9-889-585-02
2009I04-1
Audio&Video Business Group
©
2009.09
Published by Sony Techno Create Corporation
Photo: CDX-GT24W
Model Name Using Similar Mechanism
CD Drive Mechanism Type
Optical Pick-up Name
SPECIFICATIONS
MW (CDX-GT290/GT290S)
Tuning range:
(E, Argentine, Mexican model)
531 – 1,602 kHz (at 9 kHz step)
530 – 1,710 kHz (at 10 kHz step)
(Saudi Arabia model)
531 – 1,602 kHz
MW tuning interval:
(E, Argentine, Mexican model)
9 kHz/10 kHz switchable
Antenna (aerial) terminal:
External antenna (aerial) connector
Intermediate frequency: 25 kHz
Sensitivity: 26 μV
SW (CDX-GT290/GT290S)
Tuning range:
SW1: 2,940 – 7,735 kHz
SW2: 9,500 – 18,135 kHz
(except for 10,140 – 11,575 kHz)
Antenna (aerial) terminal:
External antenna (aerial) connector
Intermediate frequency: 25 kHz
Sensitivity: 30 μV
FM/AM COMPACT DISC PLAYER
FM/MW/SW COMPACT DISC PLAYER
CDX-GT24W/GT240/
GT290/GT290S
Canadian Model
CDX-GT23W/GT24/GT24EE
MG-101L-188//Q
DAX-25A
Power amplifi er section
Output: Speaker outputs (sure seal connectors)
Speaker impedance: 4 – 8 ohms
Maximum power output: 52 W × 4 (at 4 ohms)
General
Outputs:
Audio outputs terminal (sub/rear switchable)
Power antenna (aerial) relay control terminal
Power amplifi er control terminal
Inputs:
Remote controller input terminal
(CDX-290/CDX-290S)
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))
– Continued on next page –
US Model
CDX-GT24W/GT240
CDX-GT24W
E Model
CDX-GT290/GT290S
CDX-GT24W/GT240
CDX-GT290/GT290S

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Table of Contents

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   Summary of Contents for Sony CDX-GT24W

  • Page 1 Tuning range: 530 – 1,710 kHz Antenna (aerial) terminal: CDX-GT290/GT290S External antenna (aerial) connector Intermediate frequency: 25 kHz FM/MW/SW COMPACT DISC PLAYER Sensitivity: 26 μV Sony Corporation 9-889-585-02 2009I04-1 Audio&Video Business Group © 2009.09 Published by Sony Techno Create Corporation...
  • Page 2 PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONC- WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN TIONNEMENT. NE REMPLACER CES COMPOSANTS QUE THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DON- REPLACE THESE COMPONENTS...
  • Page 3: Table Of Contents

    CDX-GT24W/GT240/GT290/GT290S UNLEADED SOLDER TABLE OF CONTENTS Boards requiring use of unleaded solder are printed with the lead- free mark (LF) indicating the solder contains no lead. SERVICING NOTES ..........(Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size) GENERAL Connections ..............
  • Page 4: Servicing Notes

    CDX-GT24W/GT240/GT290/GT290S SECTION 1 SERVICING NOTES 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 5: General

    CDX-GT24W/GT240/GT290/GT290S SECTION 2 GENERAL This section is extracted from instruction manual. CONNECTIONS • CDX-GT24W CDX-GT34W Source selector (not supplied) Sélecteur de source Supplied with the CD changer (non fourni) Fourni avec le changeur de CD Selector de fuente Suministrado con el cambiador de CD...
  • Page 6 CDX-GT24W/GT240/GT290/GT290S • CDX-GT240 CDX-GT340 Source selector (not supplied) Supplied with the CD changer Sélecteur de source Fourni avec le changeur de CD (non fourni) XA-C40 Supplied with XA-C40 Fourni avec le XA-C40 FRONT AUDIO OUT CDX-GT340 BUS AUDIO IN CDX-GT340 only...
  • Page 7 CDX-GT24W/GT240/GT290/GT290S Ver. 1.1 • CDX-GT290/GT290S: E, Saudi Arabia, Mexican Model RCA pin cord (not supplied) Cable con terminales RCA (no AUDIO OUT can be switched SUB or suministrado) REAR. For details, see the supplied AUDIO OUT (salida de audio) puede Operating Instructions.
  • Page 8 CDX-GT24W/GT240/GT290/GT290S • CDX-GT290: Argentina Model Speaker, Rear, Right Altavoz, posterior, derecho Purple Morado Speaker, Rear, Right – Altavoz, posterior, derecho Speaker, Front, Right Altavoz, frontal, derecho Gray Gris Speaker, Front, Right – Altavoz, frontal, derecho Speaker, Front, Left Altavoz, frontal, izquierdo...
  • Page 9: Disassembly

    CDX-GT24W/GT240/GT290/GT290S SECTION 3 DISASSEMBLY • This set can be disassembled in the 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-GT24W/GT240/GT290/GT290S 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 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-GT24W/GT240/GT290/GT290S 3-3. MAIN BOARD 2 two screws (+PTT 2.6 4 two screws (+P 2.6 5 two screws (+PTT 2.6 6 screw 1 three screws (+P 2.6 (+BTT 2.6 7 screw (+PTT 2.6 8 heat sink 9 MAIN board insulating sheet 3-4.
  • Page 12: Chassis (t) Sub Assy

    CDX-GT24W/GT240/GT290/GT290S 3-5. CHASSIS (T) SUB ASSY 2 two screws 1 two screws (M 1.7 2.5) (M 1.7 2.5) 4 chassis (T) sub assy 3 claw 3-6. ROLLER ARM ASSY 6 roller arm assy 4 gear (RA1) 1 spring (RAL) 3 washer...
  • Page 13: Chassis (op) Assy

    CDX-GT24W/GT240/GT290/GT290S 3-7. CHASSIS (OP) ASSY 6 chassis (OP) assy 1 tension spring (KF) 7 two coil springs (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-GT24W/GT240/GT290/GT290S 3-9. SLED MOTOR ASSY 2 three serration screws (M 2 3 sled motor assy 1 spring turn table spring stand Note: Never remove these parts since they were adjusted. bearing (F) stand Note: Place the stand with care not to touch the turn table.
  • Page 15: 3-10. Optical Pick-up Section

    CDX-GT24W/GT240/GT290/GT290S 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 tapping screw (P 1.4) 2 leaf spring (OPS) 3 rack...
  • Page 16 CDX-GT24W/GT240/GT290/GT290S MEMO...
  • Page 17: Diagrams

    CDX-GT24W/GT240/GT290/GT290S SECTION 4 DIAGRAMS 4-1. BLOCK DIAGRAM – MAIN Section – ELECTRONIC VOLUME J330 IC401 AUDIO SUB-L R-CH REAR/SUB J901 SUB-R R-CH 9 AUX-L R-CH (AUX) R-CH 7 AUX-R I2C BUS CONTROLLED POWER AMP MUTE /MULTIPLE VOLTAGE REGULATOR Q481 IC750...
  • Page 18: Block Diagram -display Section

    CDX-GT24W/GT240/GT290/GT290S Ver. 1.1 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 For Printed Wiring Boards.
  • Page 19: Printed Wiring Board -main Section

    CDX-GT24W/GT240/GT290/GT290S Ver. 1.1 4-3. PRINTED WIRING BOARD – MAIN Section – • : Uses unleaded solder. J330 AUDIO OUT REAR/SUB GT290/GT290S (ANATENNA) J561 (REMOTE IN) EXCEPT AR MODEL MAIN BOARD JW122 CN601 C454 C464 C775 C774 JW32 C764 FU601 C751...
  • Page 20: Schematic Diagram -main Section (1/3)

    CDX-GT24W/GT240/GT290/GT290S 4-4. SCHEMATIC DIAGRAM – MAIN Section (1/3) – • See page 25 for IC Block Diagram. C442 C445 C432 C435 C756 JW101 R752 JW121 JW158 C765 C764 C761 C755 C758 C751 C753 C757 C775 C771 C776 C774 IC B/D...
  • Page 21: Schematic Diagram -main Section (2/3)

    CDX-GT24W/GT240/GT290/GT290S 4-5. SCHEMATIC DIAGRAM – MAIN Section (2/3) – • See page 18 for waveform. • See page 26 for IC Block Diagrams. C452 C455 C462 C465 C464 J330 C454 Q461 Q451 Q441 Q431 Q481 Q471 R462 R452 R442 R432...
  • Page 22: Schematic Diagram -main Section (3/3)

    CDX-GT24W/GT240/GT290/GT290S Ver. 1.1 4-6. SCHEMATIC DIAGRAM – MAIN Section (3/3) – • See page 18 for waveforms. • See page 28 for IC Pin Function Description of IC501. (Page 20) JC303 E,AR,MX MODEL S502 C504 R546 JW83 JW67 R500 R530...
  • Page 23: Printed Wiring Board -key Section

    CDX-GT24W/GT240/GT290/GT290S 4-7. PRINTED WIRING BOARD – KEY Section – • : Uses unleaded solder. LED901,S907 S907 LED927 LED931 (CD SLOT) (LCD BACK LIGHT) LED910 LED903 LED927 LED903,S904 S903 S904 S906 S902 LED921,S906 LCD901 LED921 LIQUID CRYSTAL DISPLAY PANEL S905 S901...
  • Page 24: Schematic Diagram -key Section

    CDX-GT24W/GT240/GT290/GT290S 4-8. SCHEMATIC DIAGRAM – KEY Section – KEY BOARD LED911,916 LED923,925 CN901 (GUIDE BUTTON SOURCE) (ILLUMINATION) IC902 PANEL IC902 PNA4813M01S0 ILL+B REMOTE CONTROL R938 LCD-CLK R967 R982 R923 SIGNAL RECEIVER LCD-CE DATA R939 LCD-DATA R924 R915 R999 SIRCS MAIN...
  • Page 25 CDX-GT24W/GT240/GT290/GT290S • IC Block Diagrams IC750 TDA8588AJ/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 ENABLE...
  • Page 26 CDX-GT24W/GT240/GT290/GT290S IC1 TEF6617T/V1/S470,518 (MAIN Board (2/3)) AMRFIN 1 AMSELOUT2 AMSELOUT1 AMRFDEC 2 TUNER AMIFAGC1 FMIN2 3 AMSELIN2 TUNER FMIN1 4 AMSELIN1 GNDRF 5 VCC2 6 DAV N DEMODULATOR DECODER PLLREF AMRFAGC 7 TUNING LOUT 8 STEREO DECODER SYSTEM HIGH CUT...
  • Page 27 CDX-GT24W/GT240/GT290/GT290S IC401 BD3447AFV-E2 (MAIN Board (2/3)) I2C BUS LOGIC, FADER FADER FADER FADER FADER EFFECT 180 /0 7 BAND 3 BAND P-EQ (TONE CONTROL) SPECTRUM ANALYZER /LEVEL METER VOLUME/MUTE SPEANA LVL METER LVL METER SPEANA INPUT GAIN INPUT SELECTOR (3 SIGLE-END AND 3 STEREO IS O)
  • Page 28 Front Panel detach/attach detect signal input “L”: With panel 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-GT24W/GT240/GT290/GT290S Pin No. Pin Name Description 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 RE IN0 Rotary encoder signal input 0 NCO/SA IN...
  • Page 30: Exploded Views

    CDX-GT24W/GT240/GT290/GT290S Ver. 1.1 SECTION 5 EXPLODED VIEWS Note: • -XX and -X mean standardized parts, so • Color Indication of Appearance Parts Ex- The components identifi ed by mark 0 they may have some difference from the ample: or dotted line with mark 0 are critical for original one.
  • Page 31: Front Panel Section

    PANEL COMPLETE ASSY, FRONT (GT240) 4-144-557-01 ILLUMINATOR (LCD) X-2349-669-1 BUTTON ASSY (S) 4-144-543-01 PANEL, BACK 3-251-320-01 EMBLEM (NO. 2.5), SONY 3-250-543-21 SCREW (+B P-TITE M2) X-2349-671-1 PANEL (SV) ASSY, FRONT (GT24W) X-2187-544-2 CASE ASSY (for FRONT PANEL) (GT290/GT290S) X-2514-357-1 PANEL (SV) ASSY, FRONT (GT240)
  • Page 32: Cd Mechanism Section (mg-101l-188//q)

    CDX-GT24W/GT240/GT290/GT290S 5-3. CD MECHANISM SECTION (MG-101L-188//Q) 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-GT24W/GT240/GT290/GT290S Ver. 1.1 SECTION 6 ELECTRICAL PARTS LIST Note: • Due to standardization, replacements in • CAPACITORS When indicating parts by reference num- uF: μF the parts list may be different from the ber, please include the board name. parts specifi ed in the diagrams or the com- •...
  • Page 34 CDX-GT24W/GT240/GT290/GT290S Ver. 1.1 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R914 1-216-828-11 METAL CHIP 3.9K 1/10W A-1730-172-A MAIN BOARD, COMPLETE (GT24W/GT240) R915 1-216-809-11 METAL CHIP 1/10W A-1731-207-A MAIN BOARD, COMPLETE R916 1-216-809-11 METAL CHIP...
  • Page 35 CDX-GT24W/GT240/GT290/GT290S MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C445 1-165-908-11 CERAMIC CHIP 1uF C770 1-127-715-11 CERAMIC CHIP 0.22uF C451 1-126-964-11 ELECT 10uF C771 1-165-908-11 CERAMIC CHIP 1uF C452 1-165-908-11 CERAMIC CHIP 1uF C774 1-115-340-11 CERAMIC CHIP 0.22uF...
  • Page 36 CDX-GT24W/GT240/GT290/GT290S MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < JACK > R152 1-216-817-11 METAL CHIP 1/10W R153 1-216-834-11 METAL CHIP 1/10W 1-815-185-13 JACK (ANTENNA) R154 1-216-834-11 METAL CHIP 1/10W J330 1-774-698-41 JACK, PIN 2P (AUDIO OUT REAR/SUB L/R)
  • Page 37 CDX-GT24W/GT240/GT290/GT290S Ver. 1.1 MAIN SERVO Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R543 1-216-821-11 METAL CHIP 1/10W A-1552-122-A SERVO BOARD, COMPLETE R546 1-216-845-11 METAL CHIP 100K 1/10W ********************** (E,AR,MX) ************************************************************* R547 1-216-821-11 METAL CHIP 1/10W...
  • Page 38 CDX-GT24W/GT240/GT290/GT290S Ver. 1.1 Ref. No. Part No. Description Remark PARTS FOR INSTALLATION AND CONNECTIONS ************************************** X-2179-431-2 FRAME ASSY, FITTING 1-465-459-41 ADAPTOR, ANTENNA (AR) 1-776-527-11 CORD (WITH CONNECTOR) (ISO) (POWER) (AR) 1-833-974-21 CONNECTION CORD FOR AUTOMOBILE (POWER) (EXCEPT AR,MX) 1-833-974-31 CONNECTION CORD FOR AUTOMOBILE...
  • Page 39 CDX-GT24W/GT240/GT290/GT290S MEMO...
  • Page 40 CDX-GT24W/GT240/GT290/GT290S 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 2009.07 Addition of Saudi Arabia and Mexican models of CDX-GT290.

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