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My 7 year old Phillips 42" plasma has started to go blank - with the red light on the side blinking. Only solution is to manually turn off the set, turn it back on - red light constant - then turn it on (green light). This works for a minute or two, then the same thing all over again. The frustrating part is that it happens intermitantly - usually at a very inappropriate time! Sometimes it won't happen for days - other times it happens every two hours.

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  • gravestock Oct 14, 2008

    No external power supply. Happens when it's cold or hot - doesn't seem to matter.


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Often this happens because the power board is faulty, let me know the model and tell me if it has an extermnal power supply

Posted on Oct 14, 2008

  • Ginko
    Ginko Oct 14, 2008

    Probably you need to replace the power board, also the main board can be cause for the problem.

    When it gets hot after a while some defective component fail, and TV goes blank.

    The TV should be tested by a technician, and the defective part replaced.

    If you decide to call a technician you can use the number listed on the service manual.

  • Ginko
    Ginko Oct 15, 2008

    Here you find all the parts for your TV.:42FD993517

    Power supply board is $239 POWER SUPPLY, main board is over $1000

    If it is the power board , or the main board, this can also be repaired replacing bad components, for this reason is better to take the tv to a workshop or to call a technician.

    Also contact Philips calling the number in the manual, and ask if they can sell you a warranty extension.Otherwise see here :Get a Warranty Extension

    And get the repair covered with the extended warranty.


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