Sony WX-C570R User Manual

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Model Name Using Similar Mechanism CDX-3180
CD Drive Mechanism Type MG-363X-121
Optical Pick-up Name KSS-521A
Model Name Using Similar Mechanism XR-2800
Tape Transport Mechanism Type MG-25E-136
SERVICE MANUAL
AEP Model
UK Model
WX-C570R
CHANGER CONTROL AUDIO MASTER
MICROFILM
CD player section
Signal-to-noise ratio 96 dB
Frequency response 10 - 20,000 Hz
Wow and flutter Below measurable limit
Cassette player section
Tape track 4-track 2-channel stereo
Wow and flutter 0.08 % (WRMS)
Frequency response 30 - 18,000 Hz
Signal-to-noise ratio
Cassette type Dolby B NR Dolby NR off
TYPE II, IV 67 dB 58 dB
TYPE I 64 dB 55 dB
Tuner section
FM
Tuning range 87.5 - 108.0 MHz
Antenna terminal External antenna connector
Intermediate frequency 10.7 MHz
Usable sensitivity 9 dBf
Selectivity 75 dB at 400 kHz
Signal-to-noise ratio 65 dB (stereo),
68 dB (mono)
Harmonic distortion at 1 kHz
0.7% (stereo),
0.4% (mono)
Separation 35 dB at 1 kHz
Frequency response 30 - 15,000 Hz
SPECIFICATIONS
– Continued on next page –
CD
Section
TC
Section
MW/LW
Tuning range MW : 531 - 1,602 kHz
LW : 153 - 281 kHz
Antenna terminal External antenna connector
Intermediate frequency 10.71 MHz/450 kHz
Sensitivity MW : 30 µV
LW : 50 µV
Power amplifier section
Outputs Speaker outputs
(sure seal connectors)
Speaker impedance 4 - 8 ohms
Maximum power output 35 W × 4 (at 4 ohms)
Dolby noise reduction manufactured under license from Dolby Labo-
ratories Licensing Corporation.
“DOLBY” and the double-D symbol a are trademarks of Dolby
Laboratories Licensing Corporation.
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T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
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TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

Sony WX-C570R Specifications

General

Brand	Sony
Model	WX-C570R
Category	Car Receiver
Language	English

Summary

General Information and Cautions

Caution and Service Notes

Important safety precautions and service notes for handling components and repairs.

Manual Sections Overview

Disassembly Procedures

Step-by-step instructions for disassembling unit components.

Mechanism Deck Assembly

Instructions for assembling the mechanism deck components.

Mechanical Adjustments

Procedures for mechanical adjustments and measurements.

Electrical Adjustments

Procedures for electrical adjustments and settings.

Getting Started and Basic Operation

Initial Unit Setup and Clock Setting

Traffic Announcements and Programme Type Selection

Traffic Announcement Features

Installation and Connections

Power and Connection Cautions

Important warnings regarding power supply, connections, and potential damage.

Connection Example Notes

Wiring Diagrams and Connection Examples

Power and Speaker Wiring

Detailed diagram showing power supply, speaker, and antenna connections to the car.

Amplifier and Remote Connections

Section 2 Disassembly Procedures

Front Panel Assembly Disassembly

Detailed steps for disassembling the front panel assembly.

Key Board Disassembly

Instructions for disassembling the key board.

Section 2 Disassembly Procedures (Continued)

CD Mechanism Block Disassembly

Steps for disassembling the CD mechanism block.

CD Board Removal

Steps for disassembling the CD board.

Main Board Removal

Steps for removing the main board.

Lever Assembly Disassembly

Steps for disassembling the lever assembly.

Roller Assembly Disassembly

Steps for disassembling the roller assembly, noting washer positions.

Optical Pick-Up Block Disassembly

Steps for disassembling the optical pick-up block.

Heat Sink Removal

Instructions for removing the heat sink.

Tape Mechanism Block Disassembly

Instructions for disassembling the tape mechanism block.

Chassis (T) Sub Assembly Disassembly

Instructions for disassembling the chassis (T) sub assembly.

Servo Board Disassembly

Instructions for disassembling the servo board.

Chassis (OP) (O/S) Assembly Disassembly

Instructions for disassembling the chassis (OP) (O/S) assembly.

Section 3 Mechanism Deck Assembly

Housing Assembly

Arm (Suction) Assembly

Section 3 Mechanism Deck Assembly (Continued)

Lever (LDG-A) / (LDG-B) Assembly

Guide (C), Guide Assembly

Gear (Loading FT) Assembly

Main Motor Assembly Mounting Position

Section 4 Mechanical Adjustments

Precautions for Adjustment

Guidelines on cleaning, demagnetizing, and tool usage before adjustments.

Torque Measurement

Procedures for measuring torque in FWD and REV modes.

Tape Tension Measurement

Method for measuring tape tension in FWD and REV modes.

Section 5 Electrical Adjustments

Tape Speed Adjustment

Steps for adjusting tape speed using a test tape and meter.

Dolby Level Adjustment

Procedure for adjusting Dolby level for L-CH and R-CH using RV101 and RV201.

Tuner Section Adjustments

Repair and Test Mode Notes

FM Auto Scan/Stop Level Adjustment

Steps to adjust FM auto scan/stop level using RV2 on TU1.

Tuner Adjustment Sequence

Tuner Section Adjustments - FM

FM Stereo Separation Adjustment

How to adjust RV4 for maximum stereo separation in L-CH and R-CH.

FM RDS S-Meter Adjustment

Steps to adjust RV31 to display "16.0" for the RDS S-meter.

Tuner Section Adjustments - MW

MW Auto Scan/Stop Level Adjustment

Adjusting RV1 on TU1 for MW auto scan/stop level indication.

CD Section Adjustments

CD Section Notes and Focus Bias Adjustment

Notes on CD block operation and steps for focus bias adjustment.

Focus Gain Adjustment

Procedure for coarse focus gain adjustment using RV4, ensuring proper operation.

Section 7 Exploded Views

Section 7 Exploded Views (Continued)

Section 8 Electrical Parts List

Section 8 Electrical Parts List (Continued)