Philips plasma tv

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  • lanada
    Senior Member
    • Oct 2013
    • 50
    • Malta
    #1

    Philips plasma tv

    I have a 50PF7521D/10 with a Y MAIN board faulty

    The problem is it has the 4 zeners faulty (short circuit),can someone knows what are the part number or the zener voltage ???

    on the zener diodes it was marked P758ST but I cant 't find anything on google

    attached you can find the part number of board and where the zener is located

    Thanks
    Attached Files
    Tags: None
    • R_J
      Badcaps Legend
      • Jun 2012
      • 9540
      • Canada
      #2
      Re: Philips plasma tv

      I believe these are the ones 755-UDZSTE-1733B (33 volt). Looks like 36 volt zeners would also work
      Last edited by R_J; 03-30-2017, 11:21 AM.

        Comment

        • freakaftr8
          Badcaps Legend
          • Oct 2012
          • 3743
          • USA
          #3
          Re: Philips plasma tv

          Common failure. Unknown as to why this happens but usually that repairs the ymain back to normal operation
          Did I leave the soldering iron on?

            Comment

            • lanada
              Senior Member
              • Oct 2013
              • 50
              • Malta
              #4
              Re: Philips plasma tv

              Are you sure it's a 36volts zener,because on the FUSE (F5004) that was blow up their was at around 700v dc.

                Comment

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