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JVC LT-32X575 User Manual

JVC LT-32X575
130 pages
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SERVICE MANUAL
COPYRIGHT © 2004 Victor Company of Japan, Limited
No.YA180
2004/8
LCD FLAT TELEVISION
YA18020048
LT-32X575/KA,
LT-32X585
/KA
TABLE OF CONTENTS
1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25
BASIC CHASSIS
FL
[LT-32X585]

Table of Contents

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JVC LT-32X575 Specifications

General IconGeneral
Screen Size32 inches
Display TypeLCD
Aspect Ratio16:9
Brightness450 cd/m²
USB Ports1
Resolution1366 x 768
Viewing Angle178° (H) / 178° (V)
Component InputYes
Composite InputYes
RF InputYes
Headphone OutputYes

Summary

SECTION 1 PRECAUTION

1.1 SAFETY PRECAUTIONS

Discusses safety precautions for handling, repair, and design modifications.

1.2 INSTALLATION

Covers heat dissipation, installation requirements, and handling precautions.

1.2.1 HEAT DISSIPATION

Explains the importance of proper ventilation to prevent overheating.

1.2.2 INSTALLATION REQUIREMENTS

Details required distances from walls and floors for stable installation.

1.2.3 INSTALLATION REQUIREMENTS

Advises on securing the TV to prevent falling during earthquakes.

1.2.4 NOTES ON HANDLING

Provides instructions for safe handling of the unit during unpacking and general care.

1.3 HANDLING LCD PANEL

Provides precautions for transporting and handling the LCD panel to prevent damage.

1.3.1 PRECAUTIONS FOR TRANSPORTATION

Details procedures for safe transportation, including packing and handling.

1.3.2 OPTICAL FILTER (ON THE FRONT OF THE LCD PANEL)

Offers guidance on cleaning and protecting the optical filter.

1.3.3 PRECAUTIONS FOR REPLACEMENT OF EXTERIOR PARTS

Advises on precautions when replacing external parts, particularly the LCD panel.

SECTION 2 SPECIFIC SERVICE INSTRUCTIONS

2.1 FEATURES

Describes various features like D.I.S.T., Smart Caption, Smart Sound, V-Chip, etc.

2.2 MAIN DIFFERENCE LIST

Compares features and specifications between LT-32X575 and LT-32X585 models.

2.3 TECHNICAL INFORMATION

Provides detailed technical specifications for the LCD panel.

2.3.1 LCD PANEL

Explains the LCD panel technology and its "normally black" mode.

2.3.1.1 SPECIFICATIONS

Lists detailed technical specifications of the LCD panel.

2.3.1.2 PIXEL FAULT

Defines and explains how to check for pixel faults (bright, dark, flicker).

SECTION 3 DISASSEMBLY

3.1 SYSTEM SETTEING

Describes the procedure for system setting after replacing the digital signal PWB.

3.2 DISASSEMBLY PROCEDURE

Outlines general notes and cautions for the disassembly process.

3.2.1 REMOVING THE STAND

Details steps to remove the stand.

3.2.2 REMOVING THE REAR COVER

Provides instructions for removing the rear cover.

3.2.3 REMOVING THE POWER PWB / REGULATOR PWB

Explains how to remove the power and regulator PWB.

3.2.4 REMOVING THE ANALOG SYGNAL PWB

Details steps for removing the analog signal PWB.

3.2.5 REMOVING THE FRONT CONTROL PWB CONTROL / FRONT SENSOR PWB

Describes how to remove front control and sensor PWBs.

3.2.6 REMOVING THE RECEIVER PWB / CONNECTOR PWB

Explains how to remove receiver and connector PWBs.

3.2.7 REMOVING THE DIGITAL SIGNAL PWB

Details steps for removing the digital signal PWB.

3.2.8 REMOVING THE SPEAKER

Provides instructions for removing the speakers.

3.2.9 REMOVING THE LCD PANEL UNIT

Details steps for removing the LCD panel unit.

3.3 MEMORY IC REPLACEMENT

Explains the process of replacing the memory IC.

3.3.1 MEMORY IC REPLACEMENT PROCEDURE

Step-by-step guide for replacing the memory IC.

3.3.2 SERVICE MODE SETTING

Describes how to set the service mode parameters after IC replacement.

3.3.3 SETTINGS OF FACTORY SHIPMENT

Details factory shipment settings for button operation and menu items.

3.3.3.1 BUTTON OPERATION

Lists factory default settings for remote control button operations.

3.3.3.2 REMOTE CONTROL DIRECT OPERATION

Lists factory default settings for direct remote control operations.

3.3.3.3 REMOTE CONTROL MENU OPERATION

Details factory default settings for menu operations like Picture Adjust and Sound Adjust.

3.4 REPLACEMENT OF CHIP COMPONENT

Provides instructions for replacing chip components with cautions.

3.4.1 CAUTIONS

Lists important cautions to follow when replacing chip components.

3.4.2 SOLDERING IRON

Recommends the type of soldering iron and tip for component replacement.

3.4.3 REPLACEMENT STEPS

Details steps for removing and installing chip components.

SECTION 4 ADJUSTMENT

4.1 ADJUSTMENT PREPARATION

Outlines prerequisites and preparations for TV adjustments.

4.2 PRESET SETTING BEFORE ADJUSTMENTS

Specifies initial settings to be made with the remote control before adjustments.

4.3 MEASURING INSTRUMENT AND FIXTURES

Lists necessary measuring instruments and fixtures for service.

4.4 ADJUSTMENT ITEMS

Lists specific video and MTS circuit adjustments.

4.5 BASIC OPERATION OF SERVICE MODE

Explains how to enter and exit the service mode.

4.5.1 HOW TO ENTER THE SERVICE MODE

Provides step-by-step instructions to access the service mode.

4.5.2 HOW TO EXIT THE SERVICE MODE

Explains how to exit the service mode.

4.5.3 DESCRIPTION OF STATUS DISPLAY

Explains the information displayed in the service mode status screen.

4.5.4 CHANGE AND MEMORY OF SETTING VALUE

Details how to change and save setting values in service mode.

4.5.5 SERVICE MODE SELECT KEY LOCATION

Shows the location of keys on the remote control for service mode operations.

4.6 INITIAL SETTING VALUES IN THE SERVICE MODE

Lists initial setting values for video, audio, panel, and drive systems.

4.6.1 VIDEO SYSTEM SETTING

Provides initial setting values for video system adjustments.

4.6.2 AUDIO SYSTEM SETTING

Lists initial setting values for audio system adjustments.

4.6.3 PANEL CONTOROL SYSTEM SETTING (*Fixed values)

Lists fixed initial setting values for panel control system.

4.6.4 DRIVE SYSTEM SETTING (*Fixed values)

Lists fixed initial setting values for drive system.

4.6.5 MAIN CPU SYETEM SETTING (*Fixed values)

Lists fixed initial setting values for the main CPU system.

4.7 ADJUSTMENT PROCEDURE

Details the procedures for adjusting video and MTS circuits.

4.7.1 VIDEO CIRCUIT

Describes adjustment procedures for video circuits, including A-D Offset and Brightness.

1125i A-D OFFSET

Step-by-step guide for adjusting 1125i A-D offset.

SUB SCREEN A-D OFFSET

Procedure for adjusting A-D offset for the sub screen.

WHITE BALANCE (HIGHLIGHT)

Details the procedure for adjusting white balance.

4.7.2 MTS CIRCUIT

Describes adjustment procedures for MTS input level and separation.

MTS INPUT LEVEL

Procedure for adjusting the MTS input level.

MTS SEPARATION

Steps to adjust MTS separation for optimal sound.

SECTION 5 TROUBLESHOOTING

5.1 SELF CHECK FEATURE

Explains the self-check feature for diagnosing operational states and failures.

5.1.1 OUTLINE

Gives an overview of the self-check feature and failure detection methods.

5.1.2 HOW TO ENTER THE SELF CHECK MODE

Step-by-step instructions to enter the self-check mode.

5.1.3 HOW TO EXIT THE SELF CHECK MODE

Explains how to exit the self-check mode and save/clear failure history.

5.1.4 FAILURE HISTORY

Describes how failure history is counted and stored.

5.1.5 POINTS TO NOTE WHEN USING THE SELF CHECK FEATURE

Lists important points and potential issues when using the self-check feature.

5.1.6 DETAILS

Provides detailed information on items checked by the self-check feature.

5.1.7 METHOD OF DISPLAY WHEN A RASTER IS NOT OUTPUT

Explains how errors are displayed via POWER LED flash when no raster output.

PARTS LIST

ABBREVIATIONS OF RESISTORS, CAPACITORS AND TOLERANCES

Lists common abbreviations used for electronic components and their tolerances.

EXPLODED VIEW PARTS LIST -1

EXPLODED VIEW PARTS LIST -1

Lists parts with reference numbers, part numbers, and descriptions.

PRINTED WIRING BOARD PARTS LIST [LT-32X575/KA]

ANALOG SIGNAL P.W. BOARD ASS'Y (SFL-1012A-M2)

Lists parts for the Analog Signal PWB.

FRONT CONTROL P.W. BOARD ASS'Y (SFL-7011A-M2)

Lists parts for the Front Control PWB.

FRONT SENSOR PWB P.W. BOARD ASS'Y (SFL-8011A-M2)

Lists parts for the Front Sensor PWB.

REGULATOR P.W. BOARD ASS'Y (SFL-9105A-M2)

Lists parts for the Regulator PWB.

POWER P.W. BOARD ASS'Y (SFL-9005A-M2)

Lists parts for the Power PWB.

DIGITAL SIGNAL P.W. BOARD ASS'Y (SFL0D105A-M2)

Lists parts for the Digital Signal PWB.

PRINTED WIRING BOARD PARTS LIST [LT-32X585/KA]

DIGITAL SIGNAL P.W. BOARD ASS'Y (SFL0D104A-M2)

Lists parts for the Digital Signal PWB (LT-32X585/KA).

RECEIVER P.W. BOARD ASS'Y (SFL0F101A-M2)

Lists parts for the Receiver PWB.

REMOTE CONTROL UNIT PARTS LIST (RM-C1257G-1H)

REMOTE CONTROL UNIT PARTS LIST (RM-C1257G-1H)

Lists components for the remote control unit.

PACKING PARTS LIST

PACKING PARTS LIST

Lists components included in the packing.

PACKING

PACKING

Illustrates the packing configuration of the product and its accessories.

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