Aiwa CDC-R937 Service Manual

SERVICE MANUAL
Ver 1.1 2004. 04
• The CD section have no adjustment.
RADIO SECTION
(FM)
Frequency Range: 87 5 MHz – 108 MHz
Intermediate frequency: 10 7 MHz (CDC-R937)
Usable Sensitivity: 12 7 dBf
50 dB Quieting Sensitivity: 17 2 dBf
IF Rejection: 100 dB
Frequency Response: 30 Hz – 15,000 Hz
S/N Ratio: 67 dB (CDC-R937)
70 dB (CDC-X937)
Stereo Separation: 35 dB at 1 kHz
Alternate Channel Selectivity: 98 dB
Capture Ratio: 3 dB
(AM) (CDC-X937)
Frequency Range: 530 kHz – 1,710 kHz
Usable Sensitivity: 30 µV (30 dB)
(MW) (CDC-R937)
Frequency Range: 531 kHz – 1,602 kHz
Intermediate frequency: 10 71 MHz/450 kHz
Usable Sensitivity: 30 µV (30 dB)
(LW) (CDC-R937)
Frequency Range: 144 kHz – 288 kHz (1 kHz/9 kHz step)
Intermediate frequency: 10 71 MHz/450 kHz
Usable Sensitivity: 30 µV (30 dB)
Sony Corporation
9-877-344-02
2004D04-1 e Vehicle Company
© 2004. 04 Published by Sony Engineering Corporation
CDC-R937/X937
Photo: CDC-R937
SPECIFICATIONS
FM/MW/LW COMPACT DISC PLAYER
Model Name Using Similar Mechanism
CD Drive Mechanism Type
Optical Pick-up Name
CD SECTION
Frequency Response: 17 Hz – 20 kHz +0/–3 dB
Dynamic Range: More than 92 dB
Channel Separation: More than 60 dB
S/N Ratio: More than 90 dB
Wow/Flutter: Unmeasurable
AUDIO SECTION
Max Power Output: 45 W × 4 channels
AUX IN Input
Input sensitivity (load impedance) AUX IN: 300 mV (10 kΩ)
FM/AM COMPACT DISC PLAYER
US Model
Canadian Model
CDC-X937
AEP Model
UK Model
CDC-R937
NEW
MG-930B-185
OPTIMA-752B
– Continued on next page –
CDC-X937
CDC-R937