Sony XBR-55X900H User Manual

SERVICE MANUAL (COMMON)
GN6UR CHASSIS
Segment: NX/NXB
9-888-784-02
LCD TV
Sony EMCS (M) Sdn. Bhd., SVPM
© 2020.06
(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.
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Revision of Information:
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SYSSET
2020/06/2706:31:32(GMT+09:00)

Sony XBR-55X900H Specifications

General

Brand	Sony
Model	XBR-55X900H
Category	LCD TV
Language	English

Summary

Section 1 Safety Notes

General Warnings and Cautions

Safety instructions for service personnel and general precautions.

LCD and OLED Panel Handling

Specific handling guidelines for LCD and OLED panels to prevent damage.

Circuit Board Handling and ESD Protection

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

Specific Safety Checks and Procedures

Safety checks, battery handling, leakage tests, grounding, and lead-free info.

Section 2 Self Diagnostic Function

Diagnostic Test Indicators

Explains Smart Core Red LED blinking codes for error identification.

Quick Reference for Diagnostics

Table listing error items and their causes for diagnostics.

Service Menu Access and Operation

Instructions on how to access and use the self-diagnosis service menu.

Retry Limitations for Error Conditions

Details on retry limits for specific error conditions via remote or power key.

Section 3 Troubleshooting

Technical Triage Summary Chart

A summary chart for troubleshooting symptoms and likely defective parts.

No Power Fault Diagnosis

Troubleshooting flowcharts for various 'no power' related issues.

LED Blinking Error Code Diagnosis

Lists LED blinking codes and their corresponding troubleshooting steps.

Audio and Sound Issues Troubleshooting

Flowcharts for resolving no sound issues with speakers and outputs.

Picture and Connectivity Faults

Troubleshooting for no picture, HDMI, tuner, network, and Bluetooth issues.

Section 4 Service Adjustment

Entering Service Mode

Instructions on how to access the TV's service mode using the remote.

Service Control Summary and Navigation

Overview of functions and control flows within the service mode.

Software Version and Serial Number Management

Viewing software version and editing serial number in service mode.

Model Number and Picture Adjustments

Steps for setting model number and adjusting picture parameters.

HDD and System Update Procedures

HDD checks, re-registration, and USB software update procedures.

Factory Data Reset (FDR)

Procedure to perform Factory Data Reset using control buttons.

Section 5 Diagrams

BM5 Board Block Diagram

Block diagram showing connections and components of the BM5 board.

Connector Pinouts by Screen Size

Connector pinout and cable connections for different screen sizes.

Section 6 Panel Handling

Panel Unpacking Procedures

Instructions for safely unpacking the display panel.

Safe Panel Carrying Techniques

Guidelines for safely carrying the display panel.

Panel Placement and General Handling

Procedures for placing the panel on a table and general handling precautions.