SONY LED TVs repair help

SONY LED TVs repair help Shaukat Ali – Professional Sony LED TV Repair Technician with 30+ years of experience. sharing real-world repair cases to help customers. πŸ“Ί

Specializing in diagnosing and fixing complex display and board-level faults.

06/06/2026

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06/06/2026
06/06/2026

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06/06/2026

Weekend Check-In! πŸ”§πŸ“Ί
What Sony TV are you currently working on?
Drop the model number in the comments and have a great weekend!

05/06/2026

2.2 Million Views! πŸŽ‰
A huge thank you to everyone who watches, likes, comments, and shares our content. Your support helps us continue sharing professional TV repair tips and solutions every day.

The BD28623 audio amplifier IC is a key component in the sound section of Sony Bravia W652D series boards, ensuring high...
05/06/2026

The BD28623 audio amplifier IC is a key component in the sound section of Sony Bravia W652D series boards, ensuring high-quality audio output. This post will introduce its function and upcoming articles will delve into detailed troubleshooting and repair techniques. πŸŽ§πŸ”ŠπŸ’»πŸ‘πŸ’Έ

Sony KDL-40W800C Audio Amplifier Section πŸ”ŠThis is an introductory post for our Sony audio fault finding series. The imag...
05/06/2026

Sony KDL-40W800C Audio Amplifier Section πŸ”Š
This is an introductory post for our Sony audio fault finding series. The image shows the audio amplifier IC BD28620MUV used in Sony KDL-40W800C LED TV main board.
This is a Class D audio amplifier IC with high efficiency output used in TV sound processing circuits. In many cases, audio issues such as no sound, distorted output, or low volume are directly linked to faults in this IC or its surrounding components.
We will continue this series with detailed troubleshooting steps and real board-level repair cases for better technician understanding.

05/06/2026

Sony KDL-43W800C 1.5V Regulator Section πŸ”§

This reference image shows the 1.5V step-down regulator area used in Sony Bravia main boards. This voltage rail is critical for stable operation of core digital circuits and system processing.

During board-level diagnosis, both input supply and 1.5V output line must be checked carefully. Any fluctuation or missing voltage in this section can lead to boot failure, no display, or unstable performance issues.

The marked IC section in the image highlights the regulator area for easy technician understanding and quick troubleshooting.

05/06/2026

TCL L32S65A – Main Board Voltage Detail Reference

This image shows the complete voltage details of the TCL L32S65A main board, where all critical supply rails are clearly marked for practical troubleshooting.

In real board-level diagnosis, the main board is the control center of the TV, and even a small voltage drop can cause issues like no power, no display, no sound, or system hang. Proper checking of standby voltage, main 12V/5V rails, and regulator outputs is essential before replacing any IC or board.

This voltage reference helps technicians quickly identify normal vs abnormal readings and makes fault tracing more accurate and time-saving.

A useful guide for understanding real working conditions of TCL main board circuits.

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