Question about Televison & Video
Let's assume your post in flat panel TV's is for an LCD TV. Since your make and model is not provided, only basic info can be provided. Most LCD TV's have a stand-by power LED that is either on or comes on when the TV switches or blinks in the event of a failure. If you don't see a light when there should be one normally, then you may have a failed stand-by power supply. The stand-by power supply provides a voltage necessary to allow you to command the tv to turn on with the remote or via the power button on the tv. If the power light is normally off and normally comes on when you use the remote to turn it on but nothing happens it can still be the stand-by power supply failed. The next level of the power control is done by a small tv micro (processor) often on a board that handles audio that tells the main power supply board to turn on. To render much technical assistance you would have to know how to take voltage readings on the PSU. If there is no SB5V you either need a PSU board or there is an issue from the AC line to the PSU. It can get complicated from there depending on the failure. I assume you know the power outlet at the wall is good and the remote battery is good and you have tried the power button on the tv to eliminate a faulty remote.
Posted on Dec 10, 2014
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Posted on Jan 02, 2017
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