Скачать или смотреть VU H40D321 LED TV Double Image Problem | Level Shifter LC1 & LC2 Modification | Source Board Repair

In this video, we demonstrate a permanent and professional solution for the VU H40D321 LED TV double image / shadow display issue using the Level Shifter LC1 & LC2 modification method on the source (panel) board.

This fault is commonly caused by imbalance in panel signal voltage levels, and replacing the panel is NOT required. Instead, we explain how accurate level shifter tuning restores normal picture output.

📌 What You Will Learn in This Video:

✔ Understanding double image / mirror display symptoms in VU LED TVs

✔ Role of Source Board & Level Shifter ICs (LC1 & LC2)

✔ Identification of faulty signal levels on the panel board

✔ Step-by-step LC1 & LC2 modification method

✔ Voltage correction and signal balancing technique

✔ Live result after successful modification

✔ How to avoid panel replacement cost

✔ Tips for long-term stable display output

🛠 Technical Highlights:

Model Covered: VU H40D321

Fault Type: Double Image / Ghost Display

Repair Type: Source Board Level Shifter Modification

Components Used: LC1 & LC2 Level Shifter Lines

Skill Level: Advanced LED TV Panel Repair

🎯 Who Should Watch This Video?

LED TV repair technicians

Chip-level electronics engineers

TV panel service professionals

Learners interested in source board and panel logic repair

Service centers looking to reduce panel replacement losses

⚠ Important Note:

This repair requires good experience in LED TV panel handling. Incorrect modification may damage the panel permanently. Perform this repair only if you understand panel signal theory and voltage behavior.

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📞 Service & Training Support:

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