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Sony KDL-40EX520 Service Manual

Sony KDL-40EX520
187 pages
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SERVICE MANUAL
LCD Digital Color TV
AZ2-F Chassis
Segment: P-1
9-888-385-04
Version Date Subject
1.0 1/13/2011 No revisions or updates are applicable at this time.
2.0 4/25/2011 Updated to new manual format. Reissue entire manual.
3.0 6/24/2011 Corrected remote model on Model List page. Replaced Model List page.
4.0 6/30/2011 Added VCOM Adjustments to Sect. 7 - Service Adjustments. Replaced and/or added pages 57-62.
Updated TOC.
ORIGINAL MANUAL ISSUE DATE: 1/2011
HISTORY INFORMATION FOR THE FOLLOWING MANUAL:

Table of Contents

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Sony KDL-40EX520 Specifications

General IconGeneral
Comb filter3D
Display diagonal40 \
Progressive scanYes
Display technologyLCD
Native aspect ratio16:9
Supported video modes1080i, 1080p, 480p, 576i, 576p, 720p
Viewable size diagonal102 mm
Supported graphics resolutions1920 x 1080 (HD 1080)
Composite video out0
HDMI ports quantity4
USB 2.0 ports quantityUSB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Digital audio optical out1
Annual energy consumption97 kWh
Product colorBlack
RMS rated power20 W
Number of speakers2
Digital signal format systemDVB-C, DVB-T
Weight and Dimensions IconWeight and Dimensions
Weight (without stand)11200 g

Summary

SECTION 1 - SAFETY AND FEATURES

Warnings and Cautions - English

General safety instructions and precautions for servicing.

Safety-Related Warnings

Critical safety information regarding component handling and electrical hazards.

Safety Check-Out

Procedures to ensure safety before releasing the TV to the customer.

Specifications

Technical details and operational parameters of the TV.

SECTION 2 - SOFTWARE REQUIREMENTS

Software Updates for Customers

Information on how customers can update the TV's software for improvements.

Software Updates for Servicers

Details for service personnel on obtaining and applying software updates.

Examples of Software Correctable Symptoms

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

SECTION 3 - CHASSIS OVERVIEW

Overall Circuit Description

Explanation of the TV's main circuits and their functions.

Main Board

Details on the primary board controlling TV functions and processing.

Power Supply

Information about the different power supply boards and their sections.

LCD Panel Assembly

Description of the LCD panel and its components.

BLOCK DIAGRAMS

Visual representation of the TV's internal system connections.

SECTION 4 - TROUBLESHOOTING

TRIAGE CHART

A chart to help diagnose potential causes of TV errors.

PROTECTION SHUTDOWN

Explanation of protective shutdown modes and their causes.

STANDBY LED FLASH COUNT

Interpreting the standby LED blinking patterns as diagnostic codes.

DIAGNOSTIC CODE DESCRIPTIONS

Table detailing diagnostic codes, LED blinks, and possible fault locations.

VIEWING THE SELF CHECK DIAGNOSTIC HISTORY

How to access and view past failure occurrences recorded by the TV.

SECTION 5 - FLOW CHARTS AND DIAGRAMS

NO POWER

Flowchart for troubleshooting no power issues.

STANDBY LED BLINKING

Flowchart for diagnosing issues based on standby LED blinking.

NO PICTURE OR SOUND

Flowchart for troubleshooting lack of video or audio.

SECTION 6 - DISASSEMBLY/PART NUMBER INFORMATION

TABLE-TOP STAND ASSEMBLY REMOVAL

Step-by-step instructions for removing the table-top stand.

REAR COVER AND AC COVER REMOVAL

Procedure for removing the rear and AC covers.

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

Instructions for removing power supply, switch unit, and speakers.

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

Steps for removing main, HLR2, and HMS3 boards.

BEZEL, PANEL BRACKETS AND LCD PANEL REMOVAL

Guide for removing the bezel, brackets, and LCD panel.

SECTION 7 - SERVICE ADJUSTMENTS

UPDATING THE SOFTWARE

Instructions for updating the TV's software to the latest version.

ACESSING SERVICE ADJUSTMENTS

Steps to enter the service mode for adjustments.

VERIFYING SERVICE ADJUSTMENTS

Procedures to verify segment code, destination, and model name.

SETTING VCOM ADJUSTMENTS

Adjustments for VCOM settings to resolve picture flickering.

RESETTING THE TV TO FACTORY CONDITION

Instructions for restoring the TV to its original factory settings.

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