Sony CDX-GT637UI User Manual

SERVICE MANUAL
Sony Corporation
Audio&Video Business Group
Published by Sony Techno Create Corporation
USB Player section
Interface: USB (Full-speed)
Maximum current: 500mA
Power amplifi er section
Outputs: Speaker outputs (sure seal connectors)
Speaker impedance: 4 – 8 ohms
Maximum power output: 52 W × 4 (at 4 ohms)
CDX-GT63UIW/GT630UI/
GT637UI
CDX-GT63UIW: US, Canadian model/GT630UI: US model
FM/AM COMPACT DISC PLAYER
CDX-GT630UI: AEP, UK, Italian model/GT637UI
FM/MW/LW COMPACT DISC PLAYER
9-889-255-02
2008K04-1
©
2008.11
US Model
CDX-GT63UIW/GT630UI
Canadian Model
CDX-GT63UIW
AEP Model
UK Model
CDX-GT630UI
Russian Model
CDX-GT637UI
Ver. 1.1 2008.11
SPECIFICATIONS
CD Player section
Signal-to-noise ratio: 120 dB
Frequency response: 10 – 20,000 Hz
Wow and fl utter: Below measurable limit
Tuner section
FM
Tuning range:
US, Canadian model: 87.5 – 107.9 MHz
AEP, UK, Italian model:87.5 – 108.0 MHz
Russian model:
FM1/FM2: 87.5 – 108.0 MHz (at 50 kHz step)
FM3: 65 – 74 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 (US, Canadian model)
Tuning range: 530 – 1,710 kHz
Antenna (aerial) terminal:
External antenna (aerial) connector
Intermediate frequency: 25 kHz
Sensitivity: 26 μV
MW/LW (AEP, UK, Italian, 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: 45 μV
Model Name Using Similar Mechanism NEW
CD Drive Mechanism Type MG-101Z-188//Q
Optical Pick-up Name DAX-25A
• The tuner and CD sections have no adjustments.
AUDIO POWER SPECIFICATIONS
(US, Canadian model)
CEA2006 Standard
Power Output: 17 Watts RMS × 4 at
4 Ohms <1 % THD + N
SN Ratio: 82 dBA
(reference: 1 Watt into 4 Ohms)
Photo: CDX-GT630UI: AEP, UK model
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Sony CDX-GT637UI Specifications

General

Brand	Sony
Model	CDX-GT637UI
Category	Car Stereo System
Language	English