Sony KDL-22L4000 User Manual

LCD DIGITAL COLOR TELEVISION
SERVICE MANUAL CZ1R CHASSIS
MODEL NAME REMOTE COMMANDER DESTINATION
9-883-801-02
KDL-22L4000 RM-YD025 US
KDL-22L4000 RM-YD025 CANADA
KDL-22L4000 RM-YD025 MEXICO
KDL-22L4000 RM-YD025 LATIN AMERICA
HISTORY INFORMATION FOR THE FOLLOWING MANUAL:
ORIGINAL MANUAL ISSUE DATE: 9/2008
:UPDATED ITEM
REVISION DATE SUBJECT
9/2008 No revisions or updates are applicable at this time.
10/2008 Removed Self Diagnosis logo from Front Cover and Self Diagnostic Function page.
Replaced pages 2 and 11.
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Sony KDL-22L4000 Specifications

General

Brand	Sony
Model	KDL-22L4000
Category	TV
Language	English

Summary

SECTION 1: DISASSEMBLY

1-1. Rear Cover Removal

Steps to remove the TV's rear cover.

1-2. Function Key and H1 Board Removal

Procedure for removing the function key and H1 board.

1-3. A Board and G Board Removal

Steps to remove the A and G boards.

1-4. Table-Top Stand Assembly and Under Cover Removal

Instructions for removing the stand and under cover.

1-5. Loudspeaker Removal

Method for safely removing the speakers.

1-6. Bottom Cover, H2 Board, H3 Board, IR Lens and LED Lens Removal

Steps for removing bottom cover and specific boards/lenses.

1-7. LCD Panel Removal

Procedure for removing the LCD panel.

Wire Dressing

Instructions on managing internal wiring during disassembly.

SECTION 2: SERVICE ADJUSTMENTS

2-1. Accessing Service (Factory) Mode

How to enter the service or factory mode for adjustments.

2-2. Reviewing Service (Factory) Mode

Overview of available service mode settings and parameters.

2-3. Resetting to Factory Defaults after Board Replacement

Procedure to reset the TV to factory defaults after component replacement.

2-4. Viewing Model Information

Steps to display TV model, serial number, and software version.

SECTION 3: DIAGRAMS

3-1. Circuit Boards Location

Identifies the location of major circuit boards within the TV.

3-2. Printed Wiring Boards and Schematic Diagrams Information

Explains symbols and notes used in circuit diagrams.

3-3. Block Diagram

Illustrates the overall functional blocks and signal flow of the TV.

3-4. Schematics and Supporting Information

General notes and references for interpreting circuit diagrams.

SECTION 4: EXPLODED VIEWS

4-1. Rear Cover Assembly and Table-Top Stand Assembly

Exploded view of rear cover and stand components for identification.

4-2. Chassis

Exploded view of the main chassis and internal components.

4-3. Screw Legend

Lists screws used in assemblies, their locations, and quantities.

SAFETY-RELATED COMPONENT WARNING

USE CAUTION WHEN HANDLING THE LCD PANEL

Precautions for safely handling the LCD panel during repair.

LEAKAGE CURRENT HOT CHECK CIRCUIT

Details on performing leakage current tests for safety.

SAFETY CHECK-OUT

How to Find a Good Earth Ground

Methods to verify proper earth grounding for safety checks.

SELF-DIAGNOSTIC FUNCTION

Description of LED Indictors

Explains the function and meaning of the TV's LED indicators.

APPENDIX A: ENCRYPTION KEY COMPONENTS