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SERVICE MANUAL
FM/AM (MW/LW) MINIDISC PLAYER
US Model
MDX-CA680X
AEP Model
UK Model
MDX-CA680/CA680X
SPECIFICATIONS
MDX-CA680/CA680X
Photo: MDX-CA680X (US model)
Ver 1.1 2001.05
9-870-242-12 Sony Corporation
2001E0500-1 e Vehicle Company
C 2001.5 Shinagawa Tec Service Manual Production Group
U.S. and foreign patents licensed from Dolby laboratories
Licensing Corporation.
AUDIO POWER SPECIFICATIONS (US model)
POWER OUTPUT AND TOTAL HARMONIC DISTORTION
23 watts per channel minimum continuous average power into 4 ohms,
4 channels driven from 20 Hz to 20 kHz with no more than 5% total
harmonic distortion.
MD Player section
Signal-to-noise ratio 90 dB
Frequency response 10 – 20,000 Hz
Wow and flutter Below measurable limit
Laser Diode Properties (US model)
Material GaAlAs
Wavelength 780 nm
Emission Duration Continuous
Laser output power Less than 44.6 µW*
* This output is the value measured at a distance of
200 mm from the objective lens surface on the
Optical Pick-up Block.
Tuner section
FM
T
US model:
AEP, UK models:
uning range
87.5 – 107.9 MHz
87.5 – 108.0 MHz
Antenna terminal External antenna 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
AM (US model)
Tuning range 530 – 1,710 kHz
Antenna terminal External antenna connector
Intermediate frequency 10.7 MHz/450 kHz
Sensitivity 30 µV
Power amplifier section
Outputs Speaker outputs
(sure seal connectors)
Speaker impedance 4 – 8 ohms
Maximum power output 50 W
× 4 (at 4 ohms)
General
Outputs Audio outputs (front/rear)
Power antenna relay control
lead
Power amplifier control lead
Inputs Telephone ATT control lead
BUS control input
connector
BUS audio input connector
Remote controller input
connector
Antenna input connectorT
US model:
one controls
Bass
±10 dB at 100 Hz
Treble ±10 dB at 15 kHz
AEP, UK models: Bass ±9 dB at 100 Hz
Treble ±9 dB at 10 kHz
Power requirements 12 V DC car battery
(negative ground)
Dimensions Approx. 178
× 50 × 177 mm
(7
1
/
8
×
2
×
7 in.)
(w/h/d)
Mounting dimensions Approx. 182
× 53 × 161 mm
(7
1
/4 × 2
1
/8 × 6
3
/8 in.)
(w/h/d)
Mass Approx. 1.2 kg
(2 lb 10 oz)
Supplied accessories Parts for installation and
connections (1 set)
Front panel case (1)
Note
This unit cannot be connected to a digital preamplifier
or an equalizer.
Design and specifications are subject to change
without notice.
MW/LW (AEP, UK models)
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
Model Name Using Similar Mechanism NEW
Base Mechanism Type MG-164MA-138
Optical Pick-up Name KMS-241C