Sony CDX-GT39U User Manual

SERVICE MANUAL
Sony Corporation
Audio&Video Business Group
Published by Sony Techno Create Corporation
CD player section
Signal-to-noise ratio: 120 dB
Frequency response: 10 – 20,000 Hz
Wow and fl utter: Below measurable limit
USB Player section
Interface: USB (Full-speed)
Maximum current: 500 mA
Power amplifi er section
Outputs: Speaker outputs (sure seal connectors)
Speaker impedance: 4 – 8 ohms
Maximum power output:
E model:52 W × 4 (at 4 ohms)
Except E model: 45 W × 4 (at 4 ohms)
9-889-678-02
2010B04-1
©
2010.02
Ver. 1.1 2010.02
SPECIFICATIONS
Tuner section
FM
Tuning range:
AEP, UK, GT35U: Russian model:
87.5 – 108.0 MHz
E, Argentina model:
87.5 – 108.0 MHz (at 50 kHz step)
87.5 – 107.9 MHz (at 200 kHz step)
GT39UE:
FM1/FM2: 87.5 – 108.0 MHz (at 50 kHz step)
FM3: 65.0 – 74.0 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
E, Argentina model:
Tuning range:
531 – 1,602 kHz (at 9 kHz step)
530 – 1,710 kHz (at 10 kHz step)
AM tuning interval:
9 kHz/10 kHz switchable
Antenna (aerial) terminal:
External antenna (aerial) connector
Intermediate frequency: 25 kHz
Sensitivity: 26 μV
MW/LW
AEP, UK, Russian model:
Tuning range:
MW: 531 – 1,602 kHz
LW: 153 – 279 kHz
Antenna (aerial) terminal:
External antenna (aerial) connector
Intermediate frequency: 25 kHz
Sensitivity: MW: 26 μV, LW: 45μV
Model Name Using Similar Mechanism CDX-GT33U
CD Drive Mechanism Type MG-101Y-188//Q
Optical Pick-up Name DAX-25A
– Continued on next page –
• The tuner and CD sections have no adjustments.
AEP Model
UK Model
CDX-GT35U/GT39U
E Model
CDX-GT35U
Russian Model
CDX-GT35U/GT39UE
CDX-GT35U/GT39U/
GT39UE
Photo: CDX-GT35U
CDX-GT35U: E, Argentina model
FM/AM COMPACT DISC PLAYER
CDX-GT35U: AEP, UK, Russian model/GT39U/GT39UE
FM/MW/LW COMPACT DISC PLAYER

Sony CDX-GT39U Specifications

General

MP3 playback	Yes
Preset stations quantity	30
Output power	180 W
Product color	Black
Ready for iPod	No
File type	MP3, WMA, AAC
Key illumination color	Red
Number of optical discs	1 discs
Illumination color	Blue

Summary

Specifications and Model Information

Tuner, CD, USB, and Amplifier Specifications

Details FM/AM tuning, CD player performance, USB interface, and power amplifier output.

Model Identification and Related Units

Lists compatible models (CDX-GT35U, GT39U, GT39UE) and similar mechanisms.

General Information and Safety Precautions

Component Handling and Test Disc Guidelines

Notes on handling optical pick-up, chip components, and required test discs.

Wiring Connections and Safety Notes

Connection diagram for E model and general safety precautions for operation.

Service Notes and Procedures

Service Position and Extension Cable Setup

Instructions for connecting the extension cable for proper service positioning.

Component Replacement Guidance

Specific notes for replacing USB connectors and servo boards.

Disassembly Instructions

Disassembly Flowchart and Overview

Visual guide showing the step-by-step disassembly order of the set.

Major Component Disassembly (e.g., Boards)

Detailed steps for removing key components like the Sub Panel, CD Mechanism, Main, and Servo Boards.

Optical Pick-up and Related Assemblies

Detailed steps for removing the Optical Pick-up Section and related parts.

Technical Diagrams and Schematics

Block Diagrams of System Architecture

Schematics illustrating the main, display, and IC block diagrams.

Printed Wiring Board Layouts and Notes

Notes on diagram conventions, PWB layouts, and schematic details.

Detailed Schematic Diagrams (Main Section)

Comprehensive schematic diagrams for the main section of the unit.

Exploded Views and Parts Lists

Exploded Views of Major Assemblies

Illustrated breakdowns of Main, Front Panel, and CD Mechanism sections.

Comprehensive Electrical Parts Listing

Detailed list of all electrical components with part numbers.

Revision History

Manual Version and Update Log

Records changes and version updates to the service manual.