50PFP5332D Philips - worth fixing?

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  • teeveetroubleddutch
    New Member
    • May 2015
    • 7
    • united states
    #1

    50PFP5332D Philips - worth fixing?

    Hey y'all.

    Total newbie here. Have some electronic experience and know my way around a dmm.

    Have this super nice 50 inch plasma 50PFP5332D TV that is acting not so nice. Was given as a project since owner didn't want to mess with it and just went ahead and bought a nice LCD. Have done some homework on this site and have so far determined that the power supply is putting out correct voltages. No bulged caps or weird nonsense. Shows heartbeat pulse on controller board and blue light comes on in front. Both relays click in and both y & x mains make their characteristic high volt humming noises. Disconnected y-main and powered up - no picture. I am pretty sure y main is cooked since the two resistors between the buffer connectors have been crackelacktically cooked. So no go with x-main connected. And from what I understand, screen should light up with x (z?) Main connected. Not really sure how to test for sound throughput since I don't know whether or not TV picks an active input automatically or if I'd need a remote to switch it.

    Do I have any way to make sure this panel would still work before replacing boards and finding out there's no gas in it? It looks flawless. No cracks or other weirdness, but it not lighting up with x (z?) Connected makes me a bit hesitant. Could be bad x (z?) As well but not sure how to go about troubleshooting it. Fuse is Ok and supply is pushing some 200 someodd volt in that direction..

    Any pointers would be greatly appreciated.
    Tags: None
    • Hamie
      Badcaps Legend
      • Apr 2014
      • 1383
      • UK
      #2
      Re: 50PFP5332D Philips - worth fixing?

      More than likely your y-sus and buffers.
      This is effectively a Samsung PS50Q97HD but wrapped up in Philips clothes.

      You'll probably find shorts on the lower heatsink on ysus and shorts on the top
      2 buffer ICs, it's an expensive fix even if you're doing it at component level.

      You need to have decent soldering experience if you want to repair the buffers.

        Comment

        • teeveetroubleddutch
          New Member
          • May 2015
          • 7
          • united states
          #3
          Re: 50PFP5332D Philips - worth fixing?

          Originally posted by Hamie
          More than likely your y-sus and buffers.
          This is effectively a Samsung PS50Q97HD but wrapped up in Philips clothes.

          You'll probably find shorts on the lower heatsink on ysus and shorts on the top
          2 buffer ICs, it's an expensive fix even if you're doing it at component level.

          Much appreciate the reply. Looked into getting y-main repaired and finding some working buffers. I think I figured out that that's relatively costly. But even despite the cost, would it be worth it considering the screen doesn't light up with the y circuitry disconnected? And just the z connected to the power supply? Or could fried y boards cause the screen not to light up with just the z connected? Its a nice TV and I'd like to try and salvage it..

            Comment

            • Hamie
              Badcaps Legend
              • Apr 2014
              • 1383
              • UK
              #4
              Re: 50PFP5332D Philips - worth fixing?

              The y makes the screen glow not the z.

                Comment

                • teeveetroubleddutch
                  New Member
                  • May 2015
                  • 7
                  • united states
                  #5
                  Re: 50PFP5332D Philips - worth fixing?

                  Originally posted by Hamie
                  The y makes the screen glow not the z.
                  Ow cool! Alright. Will see about replacements and report back

                    Comment

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