SERVICE MANUAL
Sony Corporation
eVehicle Division
Published by Sony Techno Create Corporation
Canadian Model
CDX-GT610U
E Model
CDX-GT660U/GT660US
Chinese Model
CDX-GT660U
9-887-481-02
2007C04-1
© 2007.03
Ver. 1.1 2007.03
SPECIFICATIONS
CD player section
Signal-to-noise ratio 120 dB
Frequency response 10 – 20,000 Hz
Wow and flutter Below measurable limit
Tuner section
FM
Tuning range CDX-GT610U:
87.5 – 107.9 MHz
CDX-GT660U: E, Chinese model/GT660US:
87.5 – 108.0 MHz (at 50 kHz step)
87.5 – 107.9 MHz (at 200 kHz step)
CDX-GT660U: Saudi Arabia model:
87.5 – 108.0 MHz (at 50 kHz step)
FM tuning interval CDX-GT660U: E, Chinese model/GT660US:
50 kHz/200 kHz switchable
Antenna terminal External antenna connector
Intermediate frequency 10.7 MHz/450 kHz
Usable sensitivity 9 dBf
Selectivity 75 dB at 400 kHz
Signal-to-noise ratio 67 dB (stereo), 69 dB (mono)
Harmonic distortion at 1 kHz
0.5% (stereo), 0.3% (mono)
Separation 35 dB at 1 kHz
Frequency response 30 – 15,000 Hz
AM
Tuning range CDX-GT610U:
530 – 1,710 kHz
CDX-GT660U: E, Chinese model/GT660US:
531 – 1,602 kHz (at 9 kHz step)
530 – 1,710 kHz (at 10 kHz step)
CDX-GT660U: Saudi Arabia model:
531 – 1,602 kHz (at 9 kHz)
AM tuning interval CDX-GT660U: E, Chinese model/GT660US:
9 kHz/10 kHz switchable
Antenna terminal External antenna connector
Intermediate frequency 10.7 MHz/450 kHz
Sensitivity 30 µV
USB player section
Interface USB (Full-speed)
Maximum current 500 mA
Power amplifier section
Outputs Speaker outputs (sure seal connectors)
Speaker impedance 4 – 8 ohms
Maximum power output
52 W × 4 (at 4 ohms)
• The tuner and CD sections have no adjustments.
Model Name Using Similar Mechanism
CDX-GT41UW/GT410U/
GT460U/GT460US
CD Drive Mechanism Type MG-101U-188//Q
Optical Pick-up Name DAX-25A
– Continued on next page –
CDX-GT610U/GT660U/
GT660US
FM/AM COMPACT DISC PLAYER
(Photo: CDX-GT610U)
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