Sony CDX-GT457UE User 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-GT457UE Specifications

General

Brand	Sony
Model	CDX-GT457UE
Category	Car Receiver
Language	English

Summary

Specifications

Service Note

Extension Cable and Service Position

Instructions for connecting extension cables for servicing the unit.

General

Connections

Diagrams and notes illustrating various wiring and connection methods for different models.

Disassembly

Diagrams

Block Diagram - Main Section

Block diagram illustrating the main section of the unit's circuitry.

Block Diagram - Display Section

Block diagram illustrating the display section of the unit's circuitry.

Printed Wiring Board - Main Section

Printed wiring board layout for the main section of the unit.

Schematic Diagram - Main Section (1/3)

Schematic diagram part 1 of 3 for the main section.

Schematic Diagram - Main Section (2/3)

Schematic diagram part 2 of 3 for the main section.

Schematic Diagram - Main Section (3/3)

Schematic diagram part 3 of 3 for the main section.

Printed Wiring Board - Key Section

Printed wiring board layout for the key section of the unit.

Schematic Diagram - Key Section

Schematic diagram for the key section of the unit.

IC Block Diagrams

IC Pin Function Description

Exploded Views

Main Section

Front Panel Section

CD Mechanism Section (MG-101N-188)

Electrical Parts List