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Sony CDX-GT31MP User Manual

Sony CDX-GT31MP
44 pages
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SERVICE MANUAL
Sony Corporation
Published by Sony Techno Create Corporation
CDX-GT31MP/GT260MP/GT267ME/
GT310MP/GT313MP
SPECIFICATIONS
CDX-GT31MP/GT260MP: US, CND model/GT310MP: E, AR, MX model/GT313MP
FM/AM COMPACT DISC PLAYER
CDX-GT260MP: RU model/GT267ME
FM/MW/LW COMPACT DISC PLAYER
CDX-GT310MP: EA model
FM/MW/SW COMPACT DISC PLAYER
9-893-222-01
2011G04-1
©
2011.07
US Model
Canadian Model
CDX-GT260MP
E Model
CDX-GT310MP
Russian Model
CDX-GT260MP/GT267ME
Indian Model
CDX-GT31MP/GT313MP
Ver. 1.0 2011.07
Model Name Using Similar Mechanism
CDX-GT30MP/GT250MP/
GT257ME/GT300MP/GT303MP
CD Drive Mechanism Type MG-101X-188
Optical Pick-up Name DAX-25A
Photo: CDX-GT310MP: E model
The tuner and CD sections have no adjustments.
AUDIO POWER SPECIFICATIONS
(US model)
CEA2006 Standard
Power Output: 17 Watts RMS × 4 at
4 Ohms < 1 % THD + N
SN Ratio: 80 dBA
(reference: 1 Watt into 4 Ohms)
Tuner section
FM
Tuning range:
CDX-GT260MP: US, CND model/GT310MP: AR model:
87.5 – 107.9 MHz
CDX-GT31MP/GT310MP: E, MX model/GT313MP:
87.5 – 108.0 MHz (at 50 kHz step)
87.5 – 108.0 MHz (at 100 kHz step)
87.5 – 107.9 MHz (at 200 kHz step)
CDX-GT260MP: RU model/GT310MP: EA model:
87.5 – 108.0 MHz
CDX-GT267ME:
FM1/FM2: 87.5 – 108.0 MHz (at 50 kHz)
FM3: 65 – 74 MHz (at 30 kHz)
FM Tuning step:
CDX-GT31MP/GT310MP: E, MX model/
GT313MP:
50 kHz/100 kHz/200 kHz switchable
Antenna (aerial) terminal:
External antenna (aerial) connector
Intermediate frequency: 25 kHz
Usable sensitivity: 8 dBf
Selectivity: 75 dB at 400 kHz
Signal-to-noise ratio: 80 dB (stereo)
Separation: 50 dB at 1 kHz
Frequency response: 20 – 15,000 Hz
– Continued on next page –
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Sony CDX-GT31MP Specifications

General IconGeneral
Preset Stations30
CD playerYes
MP3 playbackYes
CD-R playbackYes
CD-RW playbackYes
EqualizerYes
Equalizer bands quantity5
AUX inYes
Display typeLCD
Product colorBlack
Channels4
CD PlaybackYes
DisplayLCD
BluetoothNo
USB PortNo
Remote ControlYes
Tuner BandsFM/AM
Line outputs (RCA)1
Output power52 W

Summary

Service Notes and Procedures

Extension Cable and Service Position

Procedure for connecting a jig for repair and servicing.

Replacement Guidance (AUX Jack, Servo Board, Connectors)

Guidance on replacing AUX jack, servo board, and 15-pin connector.

Destination Code Setting Procedure

Steps for setting the destination code for different models.

General Information and Connections

Connection Diagram and Notes

Wiring diagram and notes for connecting the unit to power, antenna, and speakers.

Disassembly Procedures

Front Section Disassembly (Sub Panel, CD Mechanism)

Steps to disassemble front panel components and the CD mechanism block.

Internal Boards and Chassis Disassembly

Steps to disassemble main board, servo board, and chassis structures.

Mechanical Assemblies Disassembly

Steps to disassemble roller arm, chucking arm, and sled motor assemblies.

Optical Pick-up Section Disassembly

Steps to disassemble the optical pick-up section and its related parts.

Diagrams and Schematics

Block Diagrams (Main and Display Sections)

Block diagrams illustrating the main and display sections of the unit.

Printed Wiring Boards (Main and Key Sections)

Printed wiring board layouts for main and key sections.

Schematic Diagrams (Main and Key Sections)

Schematic diagrams for main and key sections of the unit.

IC Block Diagrams and Pin Functions

IC block diagrams and pin function descriptions for key ICs.

Exploded Views

Main Section Exploded View

Exploded view of the main section with part references.

Front Panel Section Exploded View

Exploded view of the front panel section with part references.

CD Mechanism Section Exploded View

Exploded view of the CD mechanism section with part references.

Electrical Parts List

Key Components (LEDs, Capacitors, Diodes)

List of key electronic components including LEDs, capacitors, and diodes.

Switches, Transistors, and Resistors

List of switches, transistors, and resistors used in the unit.

Integrated Circuits, Connectors, and Cables

List of ICs, connectors, cables, and miscellaneous parts.

Installation and Connection Parts

Parts list for installation and connection accessories.

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