Faulty motherboard Faulty remote control

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Problems with the motherboard are indicated by frequent interference during display operation, difficulties in managing functions, non-working connection ports, and the inability to configure equipment. Most often, specialists diagnose a failure of the DC converter or a complete software failure. Both cases are easily corrected by TV repair service center technicians.

A fairly common type of malfunction, the cause of which is the inoperative remote control or receiver on the TV. If even the buttons on the TV do not work, then most likely the problem is in the incorrect operation of the controller processor.

Sound problems
This is also a fairly common problem that can arise either due to a faulty speaker or a completely inoperative sound amplifier. Sometimes the problem lies in the radio channel and source itself, a repair usa telegram data service will tell you more precisely.

Other LCD TV malfunctions
Cooling system. A common problem that can be solved independently by cleaning the radiators from accumulated dust and replacing the thermal paste under the central chips;
Receiver and antenna . Also a common breakdown, which is most often solved by checking the connection of the cable contact with the TV. Sometimes it is the external device of the receiver that is inoperative;
Video processor. A very important part of the TV system, the failure of which results in a distorted image. This can be vertical and horizontal stripes and other color distortions. To determine this malfunction, special service diagnostics are required.
Common faults of popular TV brands
Samsung
Service center specialists point out that the most common malfunction of Samsung TVs is software firmware. This can cause spontaneous shutdowns, freezing and image slowdowns. Often, unstable firmware puts the TV into a permanent overload mode, which leads to a variety of problems.

LG
The most common problems with LG TVs are switching to automatic mode (processor problem), narrow stripes on the screen (capacitor problem) and failure to save settings (solved by updating the firmware).