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JVC MX-G850V

JVC MX-G850V
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1-1
MX-G950V/MX-G880V
MX-G850V/MX-G750V
SERVICE MANUAL
COMPACT COMPONENT SYSTEM
No.21099
Jul. 2002
COPYRIGHT 2002 VICTOR COMPANY OF JAPAN, LTD.
MX-G950V/MX-G880V
MX-G850V/MX-G750V
Area Suffix
UN----------------------- Asean
US ----------------- Singapore
UX---------------Saudi Arabia
Safety precautions
Preventing static electricity
Important for laser products
Disassembly method
Adjustment method
Contents
Flow of functional operation
until TOC read (CD)
Maintenance of laser pickup
Replacement of laser pickup
Description of major ICs
1-2
1-3
1-4
1-5
1-28
1-33
1-34
1-34
1-35~56
COMPACT
DIGITAL VIDEO
COMPACT
DIGITAL AUDIO
MX-G950V/MX-G880V
MX-G850V/MX-G750V
MX-G750V
Area Suffix
UN----------------------- Asean
MX-G880V
Area Suffix
U-----------------Other Areas
UN----------------------- Asean
UX---------------Saudi Arabia
MX-G950V/MX-G850V
CA-MXG950V
CA-MXG850V
CA-MXG880V
CA-MXG750V

Table of Contents

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JVC MX-G850V Specifications

General IconGeneral
CD PlayerYes
FM/AM TunerYes
BluetoothNo
USB PlaybackYes
MP3 PlaybackYes
WMA PlaybackYes
Remote ControlYes
Tape DeckYes
Surround SoundNo
Speaker Configuration2.0

Summary

Safety Precautions

General Safety Guidelines

Covers product design integrity, safety-related parts, lead routing, and electrical shock hazard testing procedures.

Static Electricity and Optical Pickup Handling

Preventing Static Discharge

Details grounding techniques for workbenches and personnel to prevent damage to electronic components.

Optical Pickup and Traverse Unit Care

Covers proper handling of optical pickups, including diode protection and traverse unit sensitivity.

Laser Product Safety Information

Laser Radiation Hazards and Precautions

Explains CLASS 1 LASER PRODUCT, dangers of invisible laser radiation, and safety interlocks.

Safety Switch Functionality

Discusses safety switches preventing radiation emission and hazards of defeating them.

Disassembly and Component Removal

Metal Cover Removal

Step-by-step instructions for removing the main unit's metal cover by unscrewing and lifting.

CD Changer Mechanism Removal

Procedures for disconnecting wires, rivets, and screws to detach the CD changer mechanism assembly.

Front Panel Assembly Removal

Details on disconnecting wires, removing bands, screws, and releasing joints to remove the front panel.

Main Board Removal

Instructions for disconnecting card wires and screws to safely remove the main board.

Adjustment and Measurement Procedures

Required Measurement Instruments

Lists essential instruments like oscillators, voltmeters, frequency counters for product adjustment.

Measurement Conditions and Precautions

Specifies voltage, input signals, volume settings, and critical safety precautions during measurements.

Tape Recorder Alignment Procedures

Details on adjusting head azimuth, tape speed, and bias for optimal tape recording performance.

Operational Flow, Maintenance, and ICs

TOC Read Operation Flowchart

Illustrates the sequence of operations from power on to TOC reading with key check points.

Laser Pickup Maintenance and Replacement

Covers cleaning the pickup lens, identifying laser diode wear symptoms, and replacing the laser pickup.

Major Integrated Circuit (IC) Descriptions

Provides block diagrams and pin functions for key ICs, including PB/REC amps and RF head amps.

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