JVC XV-THS8 User Manual

SERVICE MANUAL
COPYRIGHT © 2004 Victor Company of Japan, Limited
No.MB236
2004/6
DVD DIGITAL CINEMA SYSTEM
MB23620046
TH-S9,TH-S8,TH-S7
TABLE OF CONTENTS
1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-30
Area suffix
B ------------------------------ U.K.
E ---------- Continental Europe
EN ----------- Northern Europe
EV ------------- Eastern Europe
TH-S9
Area suffix
B ------------------------------ U.K.
E ---------- Continental Europe
EN ----------- Northern Europe
TH-S8
Area suffix
E ---------- Continental Europe
EN ----------- Northern Europe
EV ------------- Eastern Europe
TH-S7
TH-S9
SD card
TH-S8
TH-S7
XV-THS7
SP-PWS7
SP-THS7F SP-TH7S
SP-THS9C
XV-THS9
SP-PWS9
SP-THS9F SP-THS9S
SP-THS9C
XV-THS8
SP-PWS8
SP-THS9F SP-THS9S
SP-THS9C

JVC XV-THS8 Specifications

General

Type	Home Theater System
Number of Channels	5.1
Number of Speakers	6
DVD Playback	Yes
HDMI Outputs	1
Component Video Outputs	1
Composite Video Outputs	1
FM Tuner	Yes
Remote Control	Yes
Total Output Power	1000 Watts
Disc Compatibility	DVD, CD, MP3, WMA
Video Output	HDMI, Component Video, Composite Video
Audio Output	Digital Optical, Analog Audio

Summary

SECTION 1 PRECAUTION

1.1 Safety Precautions

Safety precautions for handling and servicing the product, including grounding and testing procedures.

1.2 Warning

Warnings about meeting international safety standards and proper repair practices.

1.4 Critical parts for safety

1.6 Preventing static electricity

Measures to prevent damage from static discharge to sensitive components like the optical pickup.

1.6.1 Grounding to prevent damage by static electricity

Procedures for grounding workbenches and oneself to prevent ESD during repairs.

1.7 Handling the traverse unit (optical pickup)

Guidelines for handling the sensitive optical pickup unit to avoid damage.

1.9 Important for laser products

Critical information and warnings regarding Class 1 Laser Product safety.

1. CLASS 1 LASER PRODUCT

Classification and safety warnings for Class 1 Laser Products.

2. DANGER: Invisible laser radiation

Dangers associated with invisible laser radiation and defeated safety switches.

3. CAUTION: Laser unit service

Cautions regarding laser unit service and defeating safety switches.

SECTION 3 DISASSEMBLY

3.1 Main body section

Procedures for disassembling the main body of the unit.

3.1.1 Removing the top cover assembly

Step-by-step guide to remove the top cover assembly from the main body.

3.1.2 Removing the metal cover

Instructions for removing the metal cover from the main body.

3.1.3 Removing the front panel assembly

Procedure for detaching and removing the front panel assembly.

3.1.4 Removing the rear panel

3.1.5 Removing the audio signal I/O board

3.1.7 Removing the DVD mechanism assembly

3.1.8 Removing the power board

3.1.9 Removing the main board

3.2 DVD mechanism section

Procedures for disassembling the DVD mechanism.

3.2.1 Removing the tray assembly

3.2.2 Removing the traverse mechanism assembly

3.2.3 Removing the DVD servo board

3.2.4 Removing the pickup

3.2.5 Attaching the pickup

3.3 Subwoofer section

Procedures for disassembling the subwoofer unit.

3.3.1 Removing the amplifier assembly

3.3.5 Removing the mother board

SECTION 4 ADJUSTMENT

4.1 Test mode setting method

Instructions for entering and exiting the product's test mode.

4.2 Method of displaying version of firmware

Guide to check the firmware version of the system.

4.3 Method of displaying region code

4.4 Initialization method

4.5 Display of current value of laser

How to check the laser current values for CD and DVD playback.

4.6 Upgrading of firmware (DVD UPGRADE)

4.7 Upgrading of system microcomputer (ROM CORRECTION)

SECTION 5 TROUBLESHOOTING