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Sony KDL-40EX527 User Manual

Sony KDL-40EX527
131 pages
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SERVICE MANUAL
LCD Digital Color TV
AZ2-F Chassis
Segment: P-1
9-888-394-03
Version Date Subject
1.0 2/2/2011 Original Manual Release Date.
2.0 6/22/2011 Updated TOC.
Added VCOM Adjustments to Section 7 - Service Adjustments. Replaced and/or added pages 53-58.
3.0 12/21/2011 Reissue entire manual.
ORIGINAL MANUAL ISSUE DATE: 1/2011
HISTORY INFORMATION FOR THE FOLLOWING MANUAL:

Table of Contents

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Sony KDL-40EX527 Specifications

General IconGeneral
BrandSony
ModelKDL-40EX527
CategoryLCD TV
LanguageEnglish

Summary

Section 1 - SAFETY AND FEATURES

Warnings and Cautions

General safety guidelines and precautions for servicing.

Handling the LVDS FFC Connector

Procedures for safely connecting and disconnecting LVDS FFC connectors.

Safety-Related Warnings

Critical safety warnings, especially for components and adjustments.

Safety Check-Out

Post-repair safety checks to ensure proper operation.

Self Diagnosis Function

Explanation of the TV's self-diagnostic capabilities and LED indicators.

Section 2 - SOFTWARE REQUIREMENTS

Examples of Software Correctable Symptoms

List of common TV issues that can be resolved with software updates.

Section 3 - CHASSIS OVERVIEW

Main Board

Description of the Main Board (BATV Board) and its core functions.

POWER SUPPLY BOARD

Details on the different power supply boards and their sections.

Section 4 - TROUBLESHOOTING

TRIAGE CHART

PROTECTION SHUTDOWN

STANDBY LED FLASH COUNT

Details on interpreting Standby LED blink patterns for diagnostics.

Troubleshooting Blink Codes

2X Blink - Main Power Error

Troubleshooting steps for a 2-blink error related to main power issues.

3X Blink- DC Regulator/Audio Error

Troubleshooting steps for a 3-blink error related to DC regulator or audio.

5X Blink - TCON Error

Troubleshooting steps for a 5-blink error indicating a TCON board issue.

6X Blink - Backlight System Failure

Troubleshooting steps for a 6-blink error related to backlight system failure.

7X Blink - Temperature Failure

Troubleshooting steps for a 7-blink error indicating a temperature issue.

8X Blink – Not listed in Self Check

Information on the 8-blink code, primarily for software development.

Section 5 - FLOW CHARTS AND DIAGRAMS

DIAGNOSING THE ERROR

Overall flowchart for diagnosing TV errors.

NO POWER Troubleshooting

STANDBY LED BLINKING Troubleshooting

3 X Blink Troubleshooting

5X Blink Troubleshooting

6X Blink Troubleshooting

7X Blink Troubleshooting

POWER LED Blinking Troubleshooting

NO PICTURE Troubleshooting

NO SOUND Troubleshooting

TV/REMOTE COMMANDER BUTTONS NOT WORKING

Remote Commander Buttons not working

NETWORK NOT CONNECTING

Wireless Network Troubleshooting

SKYPE ACCESSORY NOT WORKING

Section 6 - DISASSEMBLY/PART NUMBER INFORMATION

REAR COVER AND AC COVER REMOVAL

Instructions for removing the TV's rear and AC covers.

GE2/GE3 (POWER) BOARD, SWITCH UNIT AND SPEAKER REMOVAL

Procedures for removing power boards, switch unit, and speakers.

BATV (MAIN) BOARD, HLR2 BOARD AND HMS3 BOARD REMOVAL

Steps for removing main, IR, and motion sensor boards.

Section 7 - SERVICE ADJUSTMENTS

UPDATING SERVICE ADJUSTMENT DATA WHEN REPLACING THE MAIN BOARD

Procedures after main board replacement and software update.

UPDATING SERVICE ADJUSTMENT DATA WHEN REPLACING THE LCD PANEL

Procedures after LCD panel replacement and software update.

SETTING VCOM ADJUSTMENTS

Procedures for adjusting VCOM settings to resolve picture flickering.

APPENDIX D - 8 BLINK ERROR CODE

SOLUTION:

Step-by-step solution to troubleshoot the 8-blink error.

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