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Power failure. Red power light is out but TV and DVD in same socket still function. Alan

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  • alanaclaxton Jan 03, 2011

    It's not a TV , it is a Metronic Digital set top box



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From what I understood the wall socket is working.

Check if the power cord is fused. In that case the fuse will be in the power cord plug. If there is no fuse, then the TV must be repaired. There is no replaceable fuse inside LCD TV.

In that case testing will start with power cord itself. When there is no power at all the problem is usually the PSU board inside the TV. Usually the zener located near to the power cord connector or other component in the AC part of the PSU has blown.

I can be more specific by knowing make and model of the TV.

Posted on Jan 03, 2011

  • Ginko
    Ginko Jan 03, 2011


    If it is a set top box, test the box using a different wall socket. If the box does not start, same as TV: check if there is fuse in power plug. If there is no fuse, then power cord or internal circuit is the problem.

    If the box starts using a different socket, then the problem is either wall socket or adapters in the middle. Check also set top box power plug.



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