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Sony KDL-40BX455 User Manual

Sony KDL-40BX455
39 pages
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SERVICE / TRAINING MANUAL
LCD Digital Color TV
AZ3TK Chassis
Segment: P-2F
9-883-879-01
Self Diagnosis
Supported model
Version Date Subject
1.0 3/23/2012 Original Manual Release Date
ORIGINAL MANUAL ISSUE DATE: 3/2012
HISTORY INFORMATION FOR THE FOLLOWING MANUAL:
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Sony KDL-40BX455 Specifications

General IconGeneral
Screen Size40 inches
Display TypeLCD
Backlight TypeCCFL
Refresh Rate60 Hz
USB Ports1
Aspect Ratio16:9
Built-in Wi-FiNo
Smart TVNo
Resolution1920 x 1080 (Full HD)
Audio Output10 W

Summary

SERVICE / TRAINING MANUAL

History Information for Manual

Provides historical context for the manual's content.

Model and Chassis Identification

Identifies the specific chassis model covered by this manual.

CAUTIONS AND WARNINGS

General Safety Precautions

Outlines essential safety measures for servicing the equipment.

Setting Up and Carrying the TV

Guidelines for safely setting up and transporting the television unit.

Handling the LCD Panel Safely

Specific procedures and warnings for handling the sensitive LCD panel.

Cleaning the LCD Panel

Instructions and precautions for cleaning the television's LCD screen.

Safety Check-Out Procedures

Steps to perform after repair to ensure the product is safe for customer use.

Leakage Test and Earth Ground Verification

Methods for testing AC leakage and verifying proper earth ground connections.

SECTION 1 - FEATURES AND OVERVIEW

Model Features

Highlights key features and capabilities of the BRAVIA Sync BX series LED LCD HDTV.

Technical Specifications

Details technical specifications including system, power, and inputs/outputs.

Chassis Overview

Describes the main circuit boards and components within the AZ3TK chassis.

Overall Circuit Description

Explains the functions of the main boards and key components like CPU, Tuner, and Power Supply.

Main Board Components

Lists key components found on the Main Board, including Tuner, MT5366 Processor, etc.

LCD Panel Assembly Details

Describes the LCD Panel Assembly, TCON Board, and Inverter MT Board components.

SECTION 2 - TROUBLESHOOTING

Overview of Self Diagnosis Feature

Introduces the Self Diagnosis feature for identifying TV issues.

Software Update Benefits

Explains how software updates can resolve various TV operational symptoms.

Self Diagnosis Function Explained

Details how the CPU monitors circuits and uses the Standby LED for error indication.

Viewing Self Check Diagnosis History

Guides on accessing and interpreting the TV's self-check diagnosis history.

Standby LED Blink Code Explanations

Explains the meaning of different Standby LED blink patterns for error diagnosis.

General Triage Chart for Troubleshooting

Provides a chart to help identify potential faulty components based on symptoms.

SECTION 3 - FLOW CHARTS AND DIAGRAMS

Overall Block Diagram

Illustrates the functional connections between major components of the TV.

No Power Troubleshooting Flowchart

Step-by-step guide to diagnose and resolve 'No Power' issues.

Standby LED Blinking Troubleshooting

Flowchart for diagnosing issues indicated by the Standby LED blinking.

No Video Troubleshooting Flowchart

Guide to troubleshoot and identify causes for the 'No Video' symptom.

Video Distortion Troubleshooting Flowchart

Diagnosing video distortion issues based on screen appearance and symptoms.

SECTION 4 - DISASSEMBLY/PART NUMBER INFORMATION

Table-Top Stand and Rear Cover Removal

Procedures for removing the TV's stand and rear cover for access.

Main Board and Power Supply Board Removal

Steps for removing and replacing the Main Board and Power Supply Board.

LCD Panel Removal and Cleaning

Detailed instructions for removing the LCD Panel and cleaning procedures.

Connectors and Screws Identification

Identifies various connectors and screws used in the TV assembly.

Accessories and Remote Commander

Lists included accessories and details the remote commander unit.

Wire Dressing Guide

Illustrates proper wire routing and dressing within the TV chassis.

SECTION 5 - UPDATES AND ADJUSTMENTS

Overview of Software Updates

Explains the purpose and types of software updates for the TV.

Software Updates for Customers

Information for customers on how to update TV software for enhancements.

Software Updates for Servicers

Procedures and requirements for servicers to update TV software.

Software Update Responsibility

Clarifies responsibility for software updates and warranty implications.

Checking the Current Software Version

Method for checking the TV's current software version via the Contact Sony screen.

Software Correctable Symptoms

Lists common TV symptoms that can be resolved by software updates.

Accessing Service Adjustment Mode

Instructions to enter the TV's service adjustment mode.

Service Requirements After Main Board Replacement

Tasks to perform after replacing the Main Board to ensure full functionality.

Viewing Status Information

How to view the TV's current operational status and software versions.

Adding the Serial Number

Procedure for entering the TV's serial number in service mode.

Selecting the Model Name

Steps to select the correct model name in service mode for proper operation.

Service Requirements After LCD Panel Replacement

Tasks to perform after replacing the LCD Panel for optimal performance.

Changing the LVDS Spectrum

Adjusting the LVDS spectrum setting for optimal display performance.

Selecting the LCD Panel

Procedure for selecting the correct LCD panel model in service mode.

Optional Service Adjustments

Overview of optional service adjustments available for the TV.

Adjusting the Sound Settings

Guide for adjusting various sound parameters via service mode.

Wide Band Tuning Adjustments

Instructions for performing wide band tuning adjustments for channels.

Range Scan Adjustments

Procedure for configuring and performing range scan adjustments.

APPENDIX A: ENCRYPTION KEY COMPONENTS

Handling of Encryption Key Components

Guidelines for handling confidential encryption key components during service.

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