Question about Pioneer SD-P55A3-K 55" Rear Projection Television

4 Answers

My tv shuts down by itself will turn on after awhile but will shutdown again there is a small red light comes on when it shuts down

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  • wesleyphilli Mar 08, 2009

    tv is shutting down all the time asmall red light appears on the circuit board inside the tv when it shut down but will go out when it comes back on

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Make sure that the sleep timer is off

Posted on Mar 08, 2009

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Unplug the tv for a while and plug back in.if it doesnot help then check out for bulged or blownout capacitors on the board.if you find any of them faulty just replace it and check.it should most probably solve this problem.

Posted on Mar 08, 2009

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You need the power supply board rto be replaced ..So contact a technician for it...

Posted on Mar 08, 2009

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  • Pioneer Master
  • 19,396 Answers

That means that the tV is on protection mode, start unplugging the set for some time first.

Posted on Mar 08, 2009

  • Ginko
    Ginko Mar 08, 2009

    Try first leaving the TV power cord unplugged for some times, let say one hour or so.

    Also ensure that the fault is not coming from a faulty receiver box sending bad signal, check if you get same problem on dvd with no receiver box connected.

    If that does not work, and you keep having a flashing led on front of the TV, and tv turning off by itself after a while, that indicates a fault condition.

    The flashing light indicates a diagnostic state called protection.
    When the Monitor goes on protection there are only two possible causes.

    1The
    internal circuits are jammed because of electrostatic
    chargesaccumulating on capacitors, or because of a wrong voltage read
    by themain chip on your monitor controller board. this started the
    protectioncircuit.

    2 The protection circuit detected a wrong
    voltage or abroken contact, identified an internal fault and kicked in
    , startingthe flashing light.


    If you are in situation one, then theTV will reset just unplugging power cord for one or two hours,sometimes even minutes.

    If you are in situation 2 , then there is an internal fault.

    Commonfaults
    that can occurr suddenly are a blown capacitor on power board, a
    convergence IC has blown, or a fault on Digital board.
    check also
    the video cable, if the cableis shorting, or the connector is bad, you
    can get same flashing statebecause of the video cable.

    Check also connectors, try moving the video cable, and if the cable is not built in, then also try a replacement cable.

    If under warranty contact the manufacturer ringing the number on the user manual

    If you want to repair at your own expenses, just locate any good qualified repairer.


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