It can be frustrating to get to an important part in your favorite TV show and have the TV suddenly shut itself off. This could indicate a problem with the TV itself or with the power supply. Do some troubleshooting to find the cause of this problem and get back to watching your TV.
One reason that your TV could shut off is a brief power outage. Sometimes, the electric feed to your house experiences issues that cause very brief power outages. You may not notice it with other appliances or lights, but it could affect your TV. Surge protectors can also cause issues with power interruptions; plug the TV directly into a wall outlet to rule this possibility out.
Main Board Problems
A Digital Light Processing, or DLP, TV, uses a main board to project the image on the TV screen. If the board goes bad inside the TV, it can cause the electrical components to overheat, which in turn can cause the TV to power off by itself. In such cases, the TV usually tries to power back on after it has turned off.
Power Supply Problems
Faulty capacitors inside the power supply can also have a negative impact. When the power supply goes bad, it interrupts the flow of electricity to the TV's electrical components, making the set shut off. Replace the power supply to fix this problem.
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If you are unable to fix the problem on your own, hire a certified technician. Most modern TVs are complex, and the average person cannot take one apart and fix it without any issues. If your TV is still under warranty, call the manufacturer and ask about getting the TV repaired. The manufacturer may send a qualified technician out to look at the TV, or ask you to send the TV in for repairs.