Philips 42" Plasma - Model 42PF7320A

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  • Injustice
    Member
    • Jul 2013
    • 18
    • Trinidad & Tobago

    #21
    Re: Philips 42" Plasma - Model 42PF7320A

    I will replace the original Y buffers tommorrow and check to see if the flashing stops.

    Presently I do not have a Digital Voltmeter, but I believe I can buy one.
    No oscilloscope available

    Comment

    • Injustice
      Member
      • Jul 2013
      • 18
      • Trinidad & Tobago

      #22
      Re: Philips 42" Plasma - Model 42PF7320A

      Right,
      I changed back to Original Y buffers first - No change - Still Flashing Red Screen

      Then I changed back to the Original X Board - No Change also - Still Flashing Red Screen

      I did notice that there were 2 Green led lights on the "A2 board" don't know it proper name - [ photos attached ]
      One was Solid green ( inner ) and the other was blinking (outer, closer to the A2 writing ) in the same sequence as the flashing of the screen.

      Also there was a Humming sound coming from the Y Main board area, the hum was in the same sequence as the flashing of the screen. and blinking of the green light.

      Does this mean anything ?
      Attached Files

      Comment

      • tom66
        EVs Rule
        • Apr 2011
        • 32560
        • UK

        #23
        Re: Philips 42" Plasma - Model 42PF7320A

        It sounds like you got a defective Y-buffer board which has caused damage to your Y-main 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

        • ajshoe
          ajshoe
          • Dec 2012
          • 477
          • usa

          #24
          Re: Philips 42" Plasma - Model 42PF7320A

          tom,
          Have a Phillips 50PF9630A with smeared blotchy picture. assumed X sustain was bad - checked x sustain IPMs, checked out good. I see you mentioned something about a cracked resistor on control board - do u have any more info on where this resistor is located ?? Don't believe my x-sustain board is bad. no bad caps, voltages are good, panel comes on with smeared blotchy pic, menu button does nothing visible. do u remember old post heading ??? thanks
          Last edited by ajshoe; 10-27-2013, 09:27 PM.

          Comment

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