PANASONIC plasma TH-P42X20A SOS 4 blinks

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  • vikeyev
    New Member
    • Jun 2016
    • 4
    • Torterra
    #1

    PANASONIC plasma TH-P42X20A SOS 4 blinks

    So I had this TV and an amp plugged into the same powerpoint when the amp blew and took the TV with it . When I turn it on the standby light starts off flashing green, then goes to red and does the 4 SOS blinks.

    Now, I've found the service manual (I'd post it but it claims doing so is illegal) and I do have a Bryman BM235 multimeter, is anyone here able to help me find and fix the problem I'm having. I have a tiny bit of experience fixing TV's but they've mostly been simple fixes like replacing caps and based on this thread, I'm pretty sure it's not that simple. TW2005 states in that thread that an SOS4 on this board usually means a shorted VSUS, I don't know how to read wiring diagrams yet so finding it is my next task.
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    • RJARRRPCGP
      Badcaps Legend
      • Jul 2004
      • 6301
      • USA
      #2
      Re: PANASONIC plasma TH-P42X20A SOS 4 blinks

      Did you have a thunderstorm? If you did, you should have unplugged the TV and amp.
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        • vikeyev
          New Member
          • Jun 2016
          • 4
          • Torterra
          #3
          Re: PANASONIC plasma TH-P42X20A SOS 4 blinks

          Originally posted by RJARRRPCGP
          Did you have a thunderstorm? If you did, you should have unplugged the TV and amp.
          Nope, was working fine and it blew. I'm usually pretty good with storms (too much crap to lose to being lazy). Something is definitely wrong with the outlet because it no longer needs to be switched on to power devices (but that's a job for a qualified sparky).

            Comment

            • vikeyev
              New Member
              • Jun 2016
              • 4
              • Torterra
              #4
              Re: PANASONIC plasma TH-P42X20A SOS 4 blinks

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                • Unspun01
                  Badcaps Veteran
                  • Jun 2011
                  • 332
                  • Canada
                  #5
                  Re: PANASONIC plasma TH-P42X20A SOS 4 blinks

                  You only said the TV and the amp were plugged into the same receptacle. You never said if the amp is connected TO THE TV. If the TV and amp are merely plugged into the same receptacle, it is unlikely the amp has anything to do with the TV failure.

                  On the TV with TV disassembled, disconnect the power cable going from the SC board to the power board (The SC board is on the left side as viewed from rear of TV). Then plug in the TV and turn it on. Do you still get an SOS 4X blink? or does the SOS change to a 7X blink?

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