LG 43 Inch LED TV No Display Repair | Backlight Replacement Service in Madurai
- Unique Engineering
- Jul 8
- 2 min read
Updated: Jul 9
If your LG LED TV has sound but no picture, the problem is often caused by a faulty backlight. Recently, our team at Unique Engineering LED TV Service Solutions completed a successful LG 43-inch LED TV backlight replacement at a customer's home in SS Colony, Madurai.

Customer Complaint
The customer reported that the TV was powering on normally and audio was working perfectly, but the screen remained completely dark. There was sound only, with no display.
TV Details
Brand: LG 43LB6520D
Screen Size: 43 Inches
Issue: No Display (Sound Only)
Diagnosis
Our technician performed a complete inspection of the television at the customer's location. After testing the power supply, main board, and display section, we confirmed that the issue was caused by damaged LED backlight strips.

The TV uses 4 LED backlight strips, with 7 LED lenses on each strip, making a total of 28 LED backlight lenses. Since the backlight had failed, the screen could not produce an image even though the TV was functioning normally.
Repair Process
The television panel was carefully dismantled using professional tools to avoid any damage to the display. The faulty LED backlight strips were removed and replaced with a new high-quality compatible backlight set. After installation, the display panel was reassembled, and all internal connections were thoroughly checked.
Final Testing
Once the replacement was completed, the TV was tested for picture quality, brightness, colour accuracy, and overall performance. The LG 43-inch LED TV was restored successfully and worked perfectly with a clear, bright display.

Warranty
We provide a 180 Days Warranty on this backlight replacement service for customer peace of mind.
Doorstep Service
This repair was completed at the customer's doorstep in SS Colony,
Madurai, ensuring a convenient and hassle-free service experience.
Need LED TV Repair in Madurai?
If your TV has sound but no picture, no display, backlight issues, motherboard problems, or power supply faults, our experienced technicians are ready to help.



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