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Screen went blank while still on. unplugged power cord and when I plugged it back in the power on light went green. Problem remains

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  • jasonmarden Aug 13, 2008

    This is a 27" tv purchased from Costco. I can turn off the power with the switch in back. But when I turn it back it on it will not respond to the remote or the front panel switch.

  • jasonmarden Aug 14, 2008

    Thank You Kevin
    I waited about 2 hours and the thing "fixed" itself.
    I believe it was just too hot. Once it cooled down it worked just fine. I will keep your solution for future reference.

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Resolution:

Follow the steps below to troubleshoot this issue.


Verify that the AC power cord is connected securely to a working wall outlet.
Unplug the power cord of the television from the AC outlet.
Let the television remain without power for 1 minute.
Plug the power cord back into the AC outlet.
Attempt to turn on the television.
NOTES:

If the issue is still unresolved after completing all of the troubleshooting steps, service will be required.
Make a note of the STANDBY or TIMER flash pattern when referring the television to service.

Posted on Aug 13, 2008

  • Legin Varghese
    Legin Varghese Aug 13, 2008

    Based on your description, the most likely diagnosis
    is a failure of the power supply stage although please understand that
    TVs are quite complex and diagnosing one without being in the same room
    is not easy.This area of the TV comprises some fuses, a bridge rectifier (4 diodes) a couple of capacitors, fusible resistors and a regulator. All are prone to failure.
    That
    stuff can be checked quite easily if you have a multimeter and a
    soldering iron. Is this something you think you are capable or willing
    to do?
    The first thing to check would be the main fuse.
    If you don't feel comfortable doing this, the repair cost will likely be between $200 and $400 depending on the problem.
    ---------------------------------------------------------------------------------------------------------------------------------

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Posted on Jan 02, 2017

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