SERVICE MANUAL
Sony Corporation
Published by Sony Techno Create Corporation
CDX-GT25MPW/GT30MP/GT250MP/
GT257ME/GT300MP/GT303MP
SPECIFICATIONS
CDX-GT25MPW/GT250MP: US, Canadian model
FM/AM COMPACT DISC PLAYER
CDX-GT250MP: Russian model/GT257ME
FM/MW/LW COMPACT DISC PLAYER
CDX-GT30MP/GT300MP/GT303MP
FM/MW/SW COMPACT DISC PLAYER
9-889-931-02
2010I04-1
©
2010.09
US Model
CDX-GT25MPW/GT250MP
Canadian Model
CDX-GT250MP
E Model
CDX-GT300MP
Russian Model
CDX-GT250MP/GT257ME
Indian Model
CDX-GT30MP/GT303MP
Ver. 1.1 2010.09
Model Name Using Similar Mechanism NEW
CD Drive Mechanism Type MG-101X-188
Optical Pick-up Name DAX-25A
Photo: CDX-GT250MP
• The tuner and CD sections have no adjustments.
Tuner section
FM
Tuning range:
CDX-GT25MPW/GT250MP: US, Canadian models:
87.5 – 107.9 MHz
CDX-GT30MP/GT300MP: E, Argentina, Mexican models/
GT303MP:
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-GT250MP: Russian model/GT300MP: Saudi
Arabia model:
87.5 – 108.0 MHz
CDX-GT257ME:
FM1/FM2: 87.5 – 108.0 MHz (at 50 kHz)
FM3: 65 – 74 MHz (at 30 kHz)
FM Tuning step:
CDX-GT30MP/GT300MP: E, Argentina, Mexican models/
GT303MP:
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
CDX-GT25MPW/GT250MP: US,Canadian models:
Tuning range:
530 – 1,710 kHz
Antenna (aerial) terminal:
External antenna (aerial) connector
Intermediate frequency: 25 kHz
Sensitivity: 26 μV
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