SERVICE MANUAL
FM/MW/LW MINI DISC PLAYER
AEP Model
UK Model
SPECIFICATIONS
MDX-M690
Ver 1.0 2001.03
9-870-294-11 Sony Corporation
2001C0500-1 Audio Entertainment Group
C 2001.3 General Engineering Dept.
US and foreign patents licensed from Dolby Laboratories.
Model Name Using Similar Mechanism MDX-CA680
Base Mechanism Type MG-164MA-138
Optical Pick-up Name KMS-241C
MD Player section
Signal-to-noise ratio 90 dB
Frequency response 10 – 20,000 Hz
Wow and flutter Below measurable limit
Tuner section
FM
Tuning range 87.5 – 108.0 MHz
Aerial terminal External aerial connector
Intermediate frequency 10.7 MHz/450 kHz
Usable sensitivity 8 dBf
Selectivity 75 dB at 400 kHz
Signal-to-noise ratio 66 dB (stereo),
72 dB (mono)
Harmonic distortion at 1 kHz
0.6 % (stereo),
0.3 % (mono)
Separation 35 dB at 1 kHz
Frequency response 30 – 15,000 Hz
MW/LW
Tuning range MW: 531 – 1,602 kHz
LW: 153 – 279 kHz
Aerial terminal External aerial connector
Intermediate frequency 10.7 MHz/450 kHz
Sensitivity MW: 30 µV
LW: 40 µV
Power amplifier section
Outputs Speaker outputs
(sure seal connectors)
Speaker impedance 4 – 8 ohms
Maximum power output 52 W
× 4 (at 4 ohms)
General
Outputs Audio outputs (front/rear)
Subwoofer output (mono)
Power aerial relay control
lead
Power amplifier control lead
Inputs Telephone ATT control lead
Illumination control lead
BUS control input
connector
BUS audio input connector
Remote controller input
connector
Aerial input connector
Loudness +8 dB at 100 Hz
+2 dB at 10 kHz
Power requirements 12 V DC car battery
(negative earth)
Dimensions Approx. 178
× 50 × 182 mm
(w/h/d)
Mounting dimensions Approx. 182
× 53 × 160 mm
(w/h/d)
Mass Approx. 1.5 kg
Supplied accessories Parts for installation and
connections (1 set)
Front panel case (1)
Card remote commander
RM-X111
Tone controls Bass ±8 dB at 100 Hz
Treble ±8 dB at 10 kHz
Note
This unit cannot be connected to a digital preamplifier
or an equalizer.
Design and specifications are subject to change
without notice.
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