TV Repair and TV Technician in Mardakan: Sound but No Picture Problem

A customer living in Mardakan contacted ustamvar.az for TV repair because the television turned on normally and produced sound, but there was no picture on the screen. According to the customer, at first the screen backlight appeared with a slight delay after turning on the TV, but in recent days the sound from the channels could be heard normally while the screen remained completely dark. The operator asked about the TV brand and model, how long the problem had been occurring, whether the screen briefly lit up when the television was turned on, and whether there were any other problems with the device. After the initial information was collected, a suitable TV technician was scheduled for the following day.

After arriving at the address, the TV technician thoroughly inspected the LED backlight system, power supply board, LED driver, mainboard, and display connections. During the diagnosis, the TV technician found that several LEDs on one of the LED strips located behind the screen had failed. Because of this backlight system failure, the television continued to operate and produce sound, but the screen was not properly illuminated, making the picture invisible.

During the TV repair, the display panel was carefully removed so that the faulty LED backlight system could be inspected. The defective LED strips were replaced with suitable new parts. The TV technician also checked the electrical connections of the LED backlight, the output voltage of the LED driver, and the operation of the power supply board. During the additional inspection, the TV technician found no other electronic faults that could cause the loss of picture.

After the TV repair was completed, the technician turned the television off and on several times to test the result. It was confirmed that the TV turned on normally, the entire screen was evenly illuminated, the picture remained clear and stable, and both sound and picture worked correctly. The TV technician also checked the HDMI inputs, TV channel display, screen brightness, power supply board, and the overall operating condition of the television.

The work was completed in approximately 2 hours. The customer was advised not to delay TV repair if the television has sound but no picture, the screen goes dark after turning on, the picture becomes very dim, or some areas of the screen remain dark. In such cases, it is recommended to contact a professional TV technician for diagnosis. The customer was also advised not to disassemble the display panel or internal components of the television and to contact a professional TV technician if a fault occurs.

In Mardakan and surrounding areas, you can contact ustamvar.az for TV repair, TV technician services, TV screen repair, sound but no picture repair, TV LED backlight repair, LED strip replacement, and repair of other TV malfunctions.