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Sony CDX-GT24W User Manual

Sony CDX-GT24W
40 pages
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SERVICE MANUAL
Sony Corporation
Audio&Video Business Group
Published by Sony Techno Create Corporation
SPECIFICATIONS
CDX-GT24W/GT240
FM/AM COMPACT DISC PLAYER
CDX-GT290/GT290S
FM/MW/SW COMPACT DISC PLAYER
9-889-585-02
2009I04-1
©
2009.09
US Model
CDX-GT24W/GT240
Canadian Model
CDX-GT24W
E Model
CDX-GT290/GT290S
Ver. 1.1 2009.09
The tuner and CD sections have no adjustments.
Model Name Using Similar Mechanism CDX-GT23W/GT24/GT24EE
CD Drive Mechanism Type MG-101L-188//Q
Optical Pick-up Name DAX-25A
Photo: CDX-GT24W
CD Player section
Signal-to-noise ratio: 120 dB
Frequency response: 10 – 20,000 Hz
Wow and 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
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
Power ampli 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 ampli 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 –
CDX-GT24W/GT240/
GT290/GT290S
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Sony CDX-GT24W Specifications

General IconGeneral
MP3 playbackYes
Audio formats supportedMP3, WMA
Tuner typeSSIR-EXA
AM band range530 - 1710 kHz
FM band range87.5 - 107.9 MHz
Supported radio bandsAM, FM
Preset stations quantity30
Impedance8 Ω
Product colorBlack
Ready for iPodNo
Disc types supportedCD, CD-RW
Audio output channels4.0 channels
Maximum power per channel52 W
Signal-to-Noise Ratio (SNR)120 dB
Power requirements12 V DC
Key illumination colorRed
Number of optical discs1 discs
Display typeLCD
Weight and Dimensions IconWeight and Dimensions
Weight1200 g
Dimensions (WxDxH)178 x 50 x 179 mm

Summary

Specifications Overview

CD Player Section Specifications

Technical specifications for CD playback functionality including signal-to-noise ratio and frequency response.

Tuner Section Specifications

Technical specifications for FM, AM, and SW tuning ranges, intervals, sensitivity, and frequency response.

MW Tuning Specifications

Tuning range, interval, and sensitivity details for the MW band.

SW Tuning Specifications

Tuning range and sensitivity details for the SW bands.

Power Amplifier Section Details

Details on speaker output, impedance, and maximum power output.

General Specifications

General specifications including power requirements and tone control ranges.

Servicing Notes and Precautions

Extension Cable and Service Position

Guidelines for connecting extension cables for repair and service operations.

Component Replacement Notes

Specific instructions for replacing key components like AUX jack, servo board, and connectors.

General Information

Connections Overview

Diagrams and explanations detailing external connections for the unit.

Disassembly Procedures

Sub Panel Assembly Disassembly

Step-by-step guide for disassembling the sub panel assembly.

CD Mechanism Block Disassembly

Procedure for disassembling the CD mechanism block.

Main Board Disassembly

Instructions for removing the main circuit board.

Servo Board Disassembly

Instructions for removing the servo circuit board.

Chassis (T) Sub Assembly Disassembly

Disassembly steps for the chassis (T) sub assembly.

Roller Arm Assembly Disassembly

Disassembly of the roller arm assembly.

Chassis (OP) Assembly Disassembly

Disassembly steps for the chassis (OP) assembly.

Chucking Arm Sub Assembly Disassembly

Disassembly of the chucking arm sub assembly.

Sled Motor Assembly Disassembly

Procedure for disassembling the sled motor assembly.

Optical Pick-up Section Disassembly

Disassembly of the optical pick-up section.

Optical Pick-up Disassembly

Detailed steps for optical pick-up removal.

Diagrams and Schematics

Block Diagram - Main Section

System block diagram for the main unit.

Block Diagram - Display Section

Block diagram for the display unit.

Printed Wiring Board - Main Section

PCB layout for the main board.

Schematic Diagram - Main Section (1/3)

Electrical schematic for the main board (part 1/3).

Schematic Diagram - Main Section (2/3)

Electrical schematic for the main board (part 2/3).

Schematic Diagram - Main Section (3/3)

Electrical schematic for the main board (part 3/3).

Printed Wiring Board - Key Section

PCB layout for the key board.

Schematic Diagram - Key Section

Electrical schematic for the key board.

IC Block Diagrams

Diagrams showing IC pin functions and connections.

IC Pin Function Description

Detailed pin descriptions for main ICs.

Exploded Views

Main Section Exploded View

Exploded view illustrating the main unit's components.

Front Panel Section Exploded View

Exploded view illustrating the front panel components.

CD Mechanism Section Exploded View

Exploded view illustrating the CD mechanism components.

Electrical Parts List

Key Board Parts List

List of electronic components for the key board.

Main Board Parts List

List of electronic components for the main board.

Installation and Connection Parts List

List of parts required for physical installation and connections.

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