Panasonic HT-P54V20A Fuse F501 open

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  • Michaeld4500
    Member
    • Aug 2014
    • 10
    • Australia

    #1

    Panasonic HT-P54V20A Fuse F501 open

    Panasonic HT-P54V20A, Power supply board ETX2MM807MSL Fuse F501 open, no standby led, tested C501 14.05nf, D501 0.6Mohms across the AC pins and 8.40Mohms. I am going to replace F502, C501, D501.
    It there any other components I should test, replace ?? Thanks
    Drawing is from HT-50v20 manual.
    Attached Files
  • tw2005
    Badcaps Legend
    • Oct 2011
    • 6458
    • Australia

    #2
    Re: Panasonic HT-P54V20A Fuse F501 open

    your TV that broke or a broken TV project? Can't say I've read much on P board failures on these yet. Was it a power surge / lightning hit?

    I'd be checking the mosfets on the PSU too. Fuses usually blow due to a short

    I'd check RF601 which is a fusible resistor, will look like a ceramic resistor, check the bridge rectifier for short.

    I'd also post some images top and bottom for everyone to see.

    I don't have much experience with the P boards but i do have the 50" version P spared



    I would check out the SC board while you're having a pke too. check SC2 across the pins for short, check Q661 on the Sc also see if shorted.

    Comment

    • Roj.
      Old enough...
      • Feb 2015
      • 17
      • Australia

      #3
      Re: Panasonic HT-P54V20A Fuse F501 open

      Hello Michael4500

      Do you have a manual for TH-P54V20A or is your pdf of the P-Board from a related manual?

      Roj.
      Old enough to know better

      Comment

      • Michaeld4500
        Member
        • Aug 2014
        • 10
        • Australia

        #4
        Re: Panasonic HT-P54V20A Fuse F501 open

        Hi

        I only have the Ht-p50v20a manual, the TV was a freebie, the owner said they were unable to turn it one day.
        I will check those parts as suggested and reply soon. Thanks for the help

        Comment

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