Sony KD-43X7 H Series - User Manual

SERVICE MANUAL (COMMON)
GN6VU CHASSIS
Segment: NR
9-888-781-03
LCD TV
Sony EMCS (M) Sdn. Bhd., SVPM
© 2020.12
(See next page for revision )
ORIGINAL MANUAL ISSUE DATE:
2020.03
Conditions of Use:
(1) Please use this information only for the purpose of performing repair, maintenance and/or configuration services of the Sony products
(hereinafter the “Repair services”) under the service agreement entered into with the Sony group company (hereinafter the “Service
agreement”). Using this information for any purpose other than the purpose described foregoing is forbidden.
(2) Only the Authorized Servicer’s officers, employees or subcontractors (including their officers and employees) whose duties justify a need-to-
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SYSSET
2020/12/1202:35:59(GMT+09:00)

Summary

Safety Notes

General Safety Warnings and Precautions

General safety warnings and precautions for service personnel and equipment handling.

LCD Panel Handling Precautions

Precautions for safely handling LCD panels to prevent damage.

OLED Panel Handling Precautions

Precautions for safely handling OLED panels to prevent damage.

Circuit Board Handling Precautions

Guidelines for handling circuit boards to prevent ESD and stress damage.

ESD Safety Measures

Procedures and equipment for preventing electrostatic discharge damage.

Battery and Leakage Safety

Safety guidelines for batteries, post-repair checks, and leakage testing.

Grounding and Lead-Free Solder

Information on earth grounding methods and lead-free solder practices.

Self Diagnostic Function

Diagnostic Test Indicators

Explains LED blinking codes for error identification.

Failure LED Display Table

Table mapping LED blinking counts to error types and locations.

Troubleshooting

Troubleshooting Triage Chart

A summary chart to help identify faulty boards based on symptoms.

LED Blinking: 2 x (Main Power Error)

Troubleshooting steps for a 2x LED blinking error related to main power.

PSU Troubleshooting Flowchart

Step-by-step guide for diagnosing power supply unit issues.

PSU Connector and LED Output Specs

Pin assignments and LED output voltage specifications for PSU.

2 x Blinking Main Power Error Flow

Flowchart for diagnosing 2x LED blinking, focusing on LD board and adapter.

No Power (Screen Blank, No Backlight)

Troubleshooting steps for no power, blank screen, or no backlight.

Power Rail Checks (DDCON & TCON)

Procedures for checking 12V DDCON and 12V TCON power rails.

Power u-com Failure Analysis

Analysis of power microcontroller failures and signal paths.

BKR Board Troubleshooting Flows

Detailed troubleshooting flows for the BKR board.

No Sound Troubleshooting

Guide for diagnosing and resolving audio output issues.

3 x Blinking Audio Error

Troubleshooting flow for audio errors indicated by 3x LED blinking.

Audio D Amp IC Operation Details

Information on normal operation and checking points for the audio amplifier IC.

Main Speaker No Sound

Troubleshooting steps for when the main speakers produce no sound.

Headphone Output No Sound

Troubleshooting steps for issues with headphone audio output.

Analog Audio Input No Sound

Troubleshooting steps for problems with analog audio input.

Analog RF No Sound

Troubleshooting steps for no sound from analog RF sources.

HDMI Audio No Sound

Troubleshooting steps for no audio over HDMI connections.

Optical Out No Sound

Troubleshooting steps for no audio output via the optical jack.

LED Blinking: 5 x (Panel ID Read Error)

Troubleshooting flow for a 5x LED blink, indicating a panel ID read error.

6 x Blinking Backlight Error

Troubleshooting steps for a 6x LED blink indicating a backlight error.

No Picture Troubleshooting

Guide for diagnosing and resolving no picture issues.

No Picture: Tuner Issues

Troubleshooting for no picture or noisy picture related to the tuner.

Tuning Failed Diagnosis

Steps for diagnosing analogue and digital tuning failures.

HDMI No Picture Basic Checks

Basic checks for HDMI connectivity and resolution issues causing no picture.

HDMI Failure: Main Board Analysis

Flowchart for analyzing HDMI failures originating from the main board.

HDMI Failure: +5 V Power Analysis

Flowchart for analyzing HDMI failures related to the +5V power supply.

HDMI Failure: HPD Analysis

Flowchart for analyzing HDMI failures related to HPD (Hot Plug Detect) signals.

HDMI Failure: I2 C Analysis

Flowchart for analyzing HDMI failures related to I2C communication.

HDMI Failure: HDCP Analysis

Flowchart for analyzing HDMI failures related to HDCP (Content Protection).

HDMI Failure: CEC Function Analysis

Flowchart for analyzing HDMI failures related to CEC (Control) functionality.

HDMI Failure: No Audio Analysis

Flowchart for troubleshooting no audio issues over HDMI.

HDMI Failure: No ARC Analysis

Flowchart for troubleshooting no ARC (Audio Return Channel) functionality.

Video Analog Signal Path

Diagram showing the path of analog video signals.

No Picture: Analog Input Investigation

Investigation flow for no picture issues with analog video input.

Ethernet Connectivity Troubleshooting

Guide for diagnosing and resolving Ethernet connection problems.

Wi-Fi Malfunction Diagnosis

Steps to diagnose and resolve Wi-Fi connectivity issues.

Bluetooth Malfunction Diagnosis

Steps to diagnose and resolve Bluetooth connectivity issues.

USB Port 1 Troubleshooting

Troubleshooting steps for USB Port 1 detection and playback issues.

USB Port 2 Troubleshooting

Troubleshooting steps for USB Port 2 detection and playback issues.

Key Switch Buttons Error

Troubleshooting steps for errors related to physical key switch buttons.

Service Adjustment

Entering Service Menu

Step-by-step guide to access the TV's service menu.

Service Menu Key Controls

Summary of remote control key functions within the service menu.

Software Version Information

How to view the TV's current software version.

Model Name Configuration

Procedure for setting or changing the TV's model name.

Serial Number Configuration

Procedure for entering or changing the TV's serial number.

Entering Self-Check Mode

Steps to access the self-diagnosis history and check status.

Self Diagnosis Menu Details

Explanation of error codes, counts, and operation times in self-diagnosis.

LED Failure Diagnosis Guide

Table mapping LED blinking patterns to specific failures.

Data Transfer: TCON to Main SoC

Procedure for transferring data between TCON and Main SoC after replacement.

Tuner Detection Procedure

How to check if the tuner module is detected and functioning correctly.

Diagrams

System Block Diagram

Overall system block diagram showing component interconnections.

Panel Handling

Panel Unpacking Procedure

Steps for safely unpacking the display panel.

Panel Handling Precautions

Guidelines for safely handling the display panel without touching the screen.

Panel Carrying Methods

Recommended methods for carrying the display panel.

Panel Resting and Holding

Proper methods for resting and holding the display panel.

Panel Handling Without Gloves

Precautions when handling the panel without protective gloves.

Factory Data Reset

Factory Data Reset (UI Method < v60101)

Steps to perform a factory data reset using the user interface for older software.

Factory Data Reset (UI Method >= v60101)

Steps to perform a factory data reset using the user interface for newer software.

Factory Data Reset (Force Method)

Steps to perform a factory data reset using physical buttons.

Sony KD-43X7 H Series Specifications