JVC KD-LH811 - User Manual

SERVICE MANUAL
COPYRIGHT © 2005 Victor Company of Japan, Limited
No.MA155
2005/3
CD RECEIVER
MA15520053
KD-LH811
TABLE OF CONTENTS
1 PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-28
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-32
Area suffix
E ------------- Southern Europe
EX ----------- Northern Europe
EY -------------- Eastan Europe
EU ------------------------ Turkey
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
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
Q Q
TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

JVC KD-LH811 Specifications

General

CD Playback	Yes
Bluetooth	No
Equalizer	7-band iEQ
DIN Size	Single DIN
Detachable Face	Yes
Preamp Voltage	2.5V
RMS Power Output	22W x 4
Peak Output	50W x 4
Remote Control	Yes
Power Output	50W x 4
Tuner	FM/AM
Display Type	LCD
iPod Compatibility	Yes, via USB
Preset Stations	18 FM, 6 AM
Preamp Outputs	3 Pairs (Front + Rear + Subwoofer)

Summary

Precautions and Safety

Safety Precautions

Safety precautions regarding burrs and laser beam handling during repair.

Preventing Static Electricity Damage

Guidance on preventing damage from static electricity (ESD).

Grounding for ESD Prevention

Procedures for grounding workbench and yourself to prevent ESD damage.

Handling Optical Pickup Unit

Precautions for handling the sensitive optical pickup unit.

Traverse Unit Disassembly Attention

Instructions for handling the CD pickup unit during disassembly.

Laser Product Safety Warnings

Safety warnings and cautions related to Class 1 laser products.

Adjustment Procedures

Adjustment Method Overview

Required test instruments and standard measuring conditions for adjustments.

Connecting Extension Cable for Adjusting

Service Mode Operations

Procedures for entering and navigating the service mode.

Service Mode Setting Guide

Step-by-step guide to enter and set up the service mode.

Troubleshooting Guide

Feed Section Troubleshooting

Troubleshooting flow for issues related to the feed section.

Focus Section Troubleshooting

Troubleshooting flow for issues related to the focus section.

Spindle Section Troubleshooting

Troubleshooting flow for issues related to the spindle section.

Tracking Section Troubleshooting

Troubleshooting flow for issues related to the tracking section.

Signal Processing Troubleshooting

Troubleshooting audio signal output and processing issues.

Laser Pickup Maintenance

Cleaning the laser pickup lens and checking RF output.

Laser Pickup Replacement

Procedure for replacing the laser pickup unit and verifying its operation.

Schematic Diagrams

Block Diagram Overview

Overview of the system's functional blocks and their connections.

Standard Schematic Diagrams

Detailed circuit diagrams for the main and CD servo sections.

Printed Circuit Board Layouts