Sony WX-7700MDX - User Manual

SERVICE MANUAL
MULTI CONTROL AUDIO MASTER
SPECIFICATIONS
WX-7700MDX
E Model
Ver 1.0 2002.06
9-874-054-01 Sony Corporation
2002F0500-1 e Vehicle Company
C 2002.06 Published by Sony Engineering Corporation
CD
Model Name Using Similar Mechanism NEW
Section
CD Mechanism Type MG-398D-121
Optical Pick-up Name KSS-720A
MD
Model Name Using Similar Mechanism NEW
Section
MD Mechanism Type MG-164MF-138
Optical Pick-up Name KMS-241C
US and foreign patents licensed from Dolby
Laboratories.
CD/MD Player section
Signal-to-noise ratio 95 dB
Frequency response 10 – 20,000 Hz
Wow and flutter Below measurable limit
Tuner section
FM
Tuning range FM tuning interval:
50 kHz/200 kHz switchable
87.5 – 108.0 MHz
(at 50 kHz step)
87.5 – 107.9 MHz
(at 200 kHz step)
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),
74 dB (mono)
Harmonic distortion at 1 kHz
0.4 % (stereo),
0.3 % (mono)
Separation 35 dB at 1 kHz/WIDE
Frequency response 30 – 15,000 Hz
AM
Tuning range AM tuning interval:
9 kHz/10 kHz switchable
531 – 1,602 kHz
(at 9 kHz step)
530 – 1,710 kHz
(at 10 kHz step)
Aerial terminal External aerial 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 52 W × 4 (at 4 ohms)
General
Outputs Audio outputs (front/rear)
Subwoofer output (mono)
Power aerial relay control
terminal
Power amplifier control
terminal
Inputs Telephone ATT control
terminal
Illumination control
terminal
BUS control input terminal
BUS audio input terminal
AUX IN terminal
Aerial input terminal
Power requirements 12 V DC car battery
(negative earth)
Dimensions Approx. 178 × 100 × 194
mm (w/h/d)
Mounting dimensions Approx. 178 × 100 × 165
mm (w/h/d)
Mass Approx. 3.0 kg
Supplied accessories Parts for installation and
connections (1 set)
Card remote commander
RM-X110
Note
This unit cannot be connected to a digital preamplifier
or an equalizer.
Design and specifications are subject to change
without notice.

Summary

Specifications

Tuner Specifications

Details for FM and AM tuning ranges, intermediate frequency, sensitivity, and selectivity.

Power Amplifier Specifications

Output power, speaker impedance, and dimensions.

Handling Optical Pick-up and Boards

Optical Pick-up Handling Notes

Precautions for CD and MD optical pick-up blocks, including laser diode emission checks.

SECTION 1 SERVICING NOTES

SECTION 2 GENERAL

Location of Controls

Overview of the unit's controls and their functions.

SECTION 3 DISASSEMBLY

Disassembly Flow

Step-by-step procedure for disassembling the unit.

SECTION 5 DIAGRAMS

Block Diagrams

Overview of CD, MD, MAIN, Display, and Power supply sections.

SECTION 6 EXPLODED VIEWS

Mechanism Sections Exploded Views

Exploded views of the MD and CD mechanism decks.

SECTION 7 ELECTRICAL PARTS LIST

Sony WX-7700MDX Specifications

General

Brand	Sony
Model	WX-7700MDX
Category	Car Stereo System
Language	English