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Plasma Y-MAIN board LJ92-01200A

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    #41
    Re: Plasma Y-MAIN board LJ92-01200A

    Any ideas what to check next. Thought I was doing good =\

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      #42
      Re: Plasma Y-MAIN board LJ92-01200A

      Anyone have any idea what I should check next ?
      Thanks.

      Comment

        #43
        Re: Plasma Y-MAIN board LJ92-01200A

        Hello,

        I'm sorry to resurect an old thread but I'm trying to fix my TV and came across this.
        The TV originally had sound but no picture.
        I replaced the IPM (althou it wasn't blown as it turned out) and one of the blown mofsets.
        The buffer boards are not shorted at this point althou I'm positive the lower one was the culprit as one IC is visibly burned out.
        At this point I'm getting a reddish distorted picture with lower part of the low buffer visibly blown.
        I checked the diodes and the resistors as specified in the thread and both resistors are burned as well as both D5018 and D5009 diodes. I was able to cross reference the markings on the D5018 but cannot find anything on the D5009 (says K7 79 on it) I have a K7 59 on a parts board that I could use. Can someone tell me if that would work or what the right specs are. Also the resistors are both 1ohm in paralel so .5ohms. Is it ok if I substitute them with one .5 ohm?

        Thanks in advance.

        Adam

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          #44
          Re: Plasma Y-MAIN board LJ92-01200A

          Sorry I can't help you, my TV was disassembled and disposed of being I ran out of help and know-how.

          Good luck.

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            #45
            Re: Plasma Y-MAIN board LJ92-01200A

            Anyone else?

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              #46
              Re: Plasma Y-MAIN board LJ92-01200A

              Please see the attached image. I replaced the faulty diodes, resistors and mofset. I'm trying to run the TV with only the upper buffer board and this is what I get. (See picture) any ideas?
              Attached Files

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                #47
                Re: Plasma Y-MAIN board LJ92-01200A

                I'm sure there's a rational explanation for that, lol. I would check the voltages on theymain against what's printed on the panel. Or could be xmain trouble as well.

                You need an expert opinion so I'll just bow out now.

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                  #48
                  Re: Plasma Y-MAIN board LJ92-01200A

                  i was wondering if you guys had the diagram of the capacitors for this board Y-MAIN board LJ92-01200A...

                  i need C5052
                  and C5040...

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