Sony CDX-GT500U Service Manual

SERVICE MANUAL
Sony Corporation
Published by Sony Techno Create Corporation
SPECIFICATIONS
9-889-940-03
2012G33-1
©
2012.07
AEP Model
UK Model
CDX-GT450U
E Model
CDX-GT500U/GT500US
Russian Model
CDX-GT450U/GT457UE
Indian Model
CDX-GT50UMS/GT505U
Ver. 1.2 2012.07
• The tuner and CD sections have no adjustments.
Photo: CDX-GT450U: AEP, UK model
Tuner section
FM
Tuning range:
AEP, UK, RU, EA model:
87.5 – 108.0 MHz
E, AR, MX, IND model:
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)
FM tuning step:
E, AR, MX, IND model:
50 kHz/100 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 (E, AR, EA, MX, IND model)
Tuning range:
E, AR, MX, IND model:
531 – 1,602 kHz (at 9 kHz step)
530 – 1,710 kHz (at 10 kHz step)
EA model: 531 – 1,602 kHz
AM tuning step:
E, AR, MX, IND model:
9 kHz/10 kHz switchable
Antenna (aerial) terminal:
External antenna (aerial) connector
Intermediate frequency: 25 kHz
Sensitivity: 26 V
MW/LW (AEP, UK, RU 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 V, LW: 45 V
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
Speaker impedance: 4 – 8 ohms
Maximum power output: 52 W  4 (at 4 ohms)
CDX-GT50UMS/GT450U/GT457UE/
GT500U/GT500US/GT505U
E, Argentina, Saudi Arabia, Mexican, Indian model
FM/AM COMPACT DISC PLAYER
AEP, UK, Russian model
FM/MW/LW COMPACT DISC PLAYER
– Continued on next page –
Model Name Using Similar Mechanism NEW
CD Drive Mechanism Type MG-101N-188
Optical Pick-up Name DAX-25A

Sony CDX-GT500U Specifications

General

Power Output	52W x4
CD Playback	Yes
MP3 Playback	Yes
WMA Playback	Yes
USB Port	Yes
AUX Input	Yes
Bluetooth	No
Display Type	LCD
Equalizer	Yes
Equalizer Bands Quantity	7
Audio D/A Converter (DAC)	24-bit
Display Line	1
Removable Front Panel	Yes
ISO Connector	Yes
Product Color	Black
Remote Control	Yes
Detachable Faceplate	Yes
Tuner	AM/FM
Dimensions	178 mm x 50 mm x 160 mm
Peak Power Output	52 Watts
iPod Compatibility	Yes

Summary

Specifications

Tuner Section

Details FM, AM, MW/LW tuning ranges, steps, sensitivity, and frequency response.

CD Player Section

Power Amplifier Section

Section 1 Service Note

Extension Cable and Service Position

Instructions on connecting extension cables for servicing and optimal service positioning.

Section 3 Disassembly

Section 4 Diagrams

Block Diagram - Main Section

Overall block diagram of the main section, showing component interconnections.

Block Diagram - Display Section

Printed Wiring Board - Main Section

Layout of the main board's printed wiring, showing component placement.

Schematic Diagram - Main Section (1/3)

First part of the main section's schematic diagram.

Schematic Diagram - Main Section (2/3)

Second part of the main section's schematic diagram.

Schematic Diagram - Main Section (3/3)

Third part of the main section's schematic diagram.

Printed Wiring Board - Key Section

Schematic Diagram - Key Section

IC Block Diagrams

Block diagrams for integrated circuits used in the unit.

IC Pin Function Description

Detailed description of the function of each pin for major ICs.

Section 5 Exploded Views

Main Section Exploded View

Front Panel Section Exploded View

CD Mechanism Section Exploded View