Sony KD-43X85K User Manual

SERVICE MANUAL (COMMON)
ORIGINAL MANUAL ISSUE DATE: 2022.04
GR2VH CHASSIS
Segment : FH
9-888-905-01
LCD TV
LCD MONITOR
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Sony EMCS (M) Sdn. Bhd.,HES-M
© 2022.04
SYSSET
2022/04/1901:21:05(GMT+09:00)

Sony KD-43X85K Specifications

General

Screen Size	43 inches
Resolution	3840 x 2160 (4K UHD)
Display Type	LCD
HDR	Yes
Refresh Rate	120 Hz
Smart TV	Yes
Operating System	Google TV
HDMI Ports	4
USB Ports	2
Wi-Fi	Yes
Bluetooth	Yes
HDMI 2.1	Yes
Ethernet Port	Yes
Processor	4K HDR Processor X1
HDR Format	Dolby Vision, HDR10, HLG
Weight	10.7 kg (with stand)

Summary

REVISION HISTORY

MODEL LISTS

SAFETY NOTES

1-1. Warnings and Caution.

General safety precautions for service personnel and handling the TV.

1-3. Caution for Board Handling.

Precautions for handling electronic boards to prevent damage from stress or ESD.

1-5. Safety Check-Out

Essential safety checks to perform before releasing a repaired set to the customer.

1-6. Leakage Test.

Procedure for testing leakage current to prevent electric shock.

1-7. How to Find a Good Earth Ground.

Methods for ensuring a proper earth ground connection during servicing.

SELF DIAGNOSIS FUNCTION

DIAGNOSTIC TEST INDICATORS

Explanation of how LED blinking patterns indicate diagnostic error codes.

Self Diagnosis Service Menu

Instructions for accessing and navigating the self-diagnosis menu.

Retry Limitation by Remote/Power Key

Details on retry limitations for power-on actions based on error counts.

TROUBLESHOOTING

Triage Chart

Chart to identify potential defective parts based on symptoms and diagnostic codes.

1.0 No Power - PSU

Troubleshooting steps for power supply unit (PSU) 'No Power' issues.

2.0 LED Blinking: 2x (Main power Error)

Diagnosing 'Main power Error' indicated by 2x LED blinking.

3.1 No Sound for Speaker

Diagnostic flowchart for no sound from speaker issues.

4.2 No Picture – Investigation flow (WW Destination)

Flowchart for investigating 'No Picture' with analog video input.

6.0 Network Malfunction: Ethernet (wired)

Steps to troubleshoot wired Ethernet connection failures.

SERVICE ADJUSTMENT

Summary of Service Control

Overview of service control functions and remote commander key sequences.

How to Enter Service Mode

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

Serial Number Edit

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

Model Number Setting

Guide on how to set or change the model number in the service menu.

USB Update

Steps for updating the TV's system software via USB.

DIAGRAM

Block Diagram: FH M5 LCD Global Dimming 120Hz

High-level block diagram illustrating the main components and signal paths.

43” Connecting Diagram

Detailed connection diagram for 43-inch models, showing component interconnections.

55” Connecting Diagram

Detailed connection diagram for 55-inch models, showing component interconnections.

75” Connecting Diagram

Detailed connection diagram for 75-inch models, showing component interconnections.

HANDLING GUIDE

1. Holding Position

Correct and incorrect methods for holding the TV panel during handling.

2. Carry Position

Recommended vertical orientation for carrying the TV panel.

3. Carry Condition

Proper methods for carrying the panel by two people, avoiding force application.

5. Resting Condition

Guidelines for safely placing the TV panel on a table, ensuring full support.

7. Restricted Area

Areas on the panel to avoid touching, like piezo hooks and rear cover hems.