RCA 55" LCD backlights flash on and off

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  • bnbydc
    New Member
    • Jun 2013
    • 1
    • usa

    #1

    RCA 55" LCD backlights flash on and off

    my RCA 55" lcd #55la55rs The problem is that the backlight bulbs keep flashing on and off a couple of times a second, other than the flashing the picture and sound are normal. I have replaced the power supply, as well as the t-con, inverters, main unit, and PC board, and it still does it. what could be causing it, any ideas?
  • R_J
    Badcaps Legend
    • Jun 2012
    • 9535
    • Canada

    #2
    Re: RCA 55" LCD backlights flash on and off

    I suspect one or more of the ccfl lamps are bad in the panel

    Comment

    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK

      #3
      Re: RCA 55" LCD backlights flash on and off

      My guess would be PFC or primary capacitor on power board.
      Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
      For service manual, schematic, boardview (board view), datasheet, cad - use our search.

      Comment

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