Sony XR-50X9 J Series User Manual

SERVICE MANUAL (COMMON)
GR1VH CHASSIS
Segment : AR
9-888-792-01
LCD TV
Sony EMCS (M) Sdn. Bhd., SHES-M
© 2021.03
ORIGINAL MANUAL ISSUE DATE: 2021.03
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SYSSET
2021/02/2522:52:59(GMT+09:00)

Sony XR-50X9 J Series Specifications

General

Display Type	LCD
Operating System	Google TV
USB Ports	2
Screen Size	50 inches
Resolution	3840 x 2160 (4K)
HDR	Yes (HDR10, HLG)
HDMI Ports	4
Wi-Fi	Yes
Bluetooth	Yes
Audio Output	20W

Summary

SAFETY NOTES

1-1. Warnings and Caution

General cautions and warnings for servicing procedures.

1-2. Caution Handling of LCD Panel

Safe handling procedures for LCD panels to prevent damage.

1-3. Caution for Board Handling

Guidelines for safely handling circuit boards, considering ESD.

SELF DIAGNOSTIC FUNCTION

Diagnostic Test Indicators

Explains LED blinking codes for error identification.

Self Diag. Quick Reference (LED blinking)

Table mapping LED blink counts to error items and causes.

Self Diag. Quick Reference (Not LED blinking)

Table for error items that do not involve LED blinking.

TROUBLESHOOTING

Triage Chart

Guide to diagnose and isolate issues based on symptoms and board conditions.

1.1 No Power

Troubleshooting steps for cases where the TV does not power on.

1.2 No Power U-Com Failure

Diagnosing power issues related to the U-Com controller.

1.3 No Power DDCON / LDO

Troubleshooting steps for DDCON and LDO related power failures.

2.0 LED Blinking : 2x (Main power error)

Troubleshooting for main power errors indicated by 2 LED blinks.

2.1 LED Blinking : 3x (DC Alert)

Troubleshooting for DC alert errors indicated by 3 LED blinks.

3.1 No Sound: Speaker

Steps to diagnose and resolve no sound issues related to speakers.

4.0 No Picture

General troubleshooting for scenarios where the TV displays no picture.

4.4 No Picture - Tuner

Diagnosing no picture issues specifically related to the tuner function.

6.0 Network Malfunction : Ethernet Wired

Steps to resolve issues with wired network connectivity.

SERVICE ADJUSTMENT

4.1 How to Enter Service Mode

Instructions on accessing the TV's service mode via remote control.

Software Version

Information on how to check the current software version in service mode.

Serial Number Edit

Procedure for editing or verifying the unit's serial number.

Model Number Setting

Guide to setting or changing the TV's model number.

WB Adjustment (if necessary)

Steps for performing White Balance adjustment in Panel/PQ service mode.

DIAGRAMS

BM5S Board Block Diagram

Overview of the BM5S board components and their interconnections.

Connecting Diagram 50

Detailed wiring and connector layout for system interconnections.

PANEL HANDLING

Holding Position

Correct methods for holding the panel during servicing to prevent damage.

Carry Position

Guidelines for safely carrying the TV panel in a vertical position.

Resting Condition

Proper procedures for resting the panel to ensure support and prevent damage.

Prohibited Method

Methods to avoid when handling the panel to prevent damage.