Panasonic TCP-42S2 6blink

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  • tw2005
    Badcaps Legend
    • Oct 2011
    • 6457
    • Australia

    #41
    Re: Panasonic TCP-42S2 6blink

    slide 96

    the only combinations involving SC20 removed staying on which is the same as removing A20 are:

    A20,A32 - TV stays on

    A20,A31,A32 - TV stays on

    A31,A32 feed to the C boards

    Comment

    • bikerbuddy
      Senior Member
      • Jun 2011
      • 134
      • USA

      #42
      Re: Panasonic TCP-42S2 6blink

      tw 2005 I ran the test u mention with all cables hook up and remove C10 connector and sc20 and I did get 8blinks .

      also I checked the voltages on the blue caps on C 633 I get 51 volts, facing the caps on right leg same for C 632 no power on the left leg ,
      On C413 the smaller blue cap I have 205 volts on the left leg and no power on the right leg .

      All these voltage are measured when power up and before going to the 6 blink.

      All the transistors and diodes i got from outsource and found some of the parts were defective right out of the shipment .some diode were dead no reading .

      Also I have check the voltage on SC board

      TP 82= 15.2 V
      TP 99 = 0 V
      TP 46 =0.11 V
      TP 101= 0 V
      TP 102 = 4.95 V
      TP 3 = .30 V
      TP SOS = 4.23V

      If there is any thing comes to mind for me to look up just give me a shout ,I may look into getting another Sc board ,Just may.Thanks for help
      Last edited by bikerbuddy; 12-13-2014, 10:01 PM.

      Comment

      • tw2005
        Badcaps Legend
        • Oct 2011
        • 6457
        • Australia

        #43
        Re: Panasonic TCP-42S2 6blink

        Originally posted by bikerbuddy
        tw 2005 I ran the test u mention with all cables hook up and remove C10 connector and sc20 and I did get 8blinks .

        also I checked the voltages on the blue caps on C 633 I get 51 volts, facing the caps on right leg same for C 632 no power on the left leg ,
        On C413 the smaller blue cap I have 205 volts on the left leg and no power on the right leg .

        All these voltage are measured when power up and before going to the 6 blink.

        All the transistors and diodes i got from outsource and found some of the parts were defective right out of the shipment .some diode were dead no reading .

        Also I have check the voltage on SC board

        TP 82= 15.2 V
        TP 99 = 0 V
        TP 46 =0.11 V
        TP 101= 0 V
        TP 102 = 4.95 V
        TP 3 = .30 V
        TP SOS = 4.23V

        If there is any thing comes to mind for me to look up just give me a shout ,I may look into getting another Sc board ,Just may.Thanks for help
        If TP SOS6 4.23V(I assume since you have neither 6 or 7 labelled) then the SC is faulted. On initial start up it goes high momentarily then low, if staying high then it's faulted.

        Which parts were faulted from UT ? I have not had any dramas yet, touch wood.

        Comment

        • tom66
          EVs Rule
          • Apr 2011
          • 32560
          • UK

          #44
          Re: Panasonic TCP-42S2 6blink

          If you only get 53V on the bank of blue caps, that's bad. The ER circuit isn't charging them up. You can check the SS board for a comparison of what the voltage should be.
          Last edited by tom66; 12-14-2014, 07:07 AM.
          Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
          For service manual, schematic, boardview (board view), datasheet, cad - use our search.

          Comment

          • bikerbuddy
            Senior Member
            • Jun 2011
            • 134
            • USA

            #45
            Re: Panasonic TCP-42S2 6blink

            Ok guys I finally got this tv going I bought a used SC board on line , the board was supposed to be a for parts or repair , After the board arrived I started to check out all the fets and diodes ,they all checked out good, put the board in and start it up , it started right up and been running for the last three days.

            Here are some test results from checking the transistors and fets :-
            + indicates red lead on multitester
            _ indicates black lead on multitester
            Attached Files

            Comment

            • bikerbuddy
              Senior Member
              • Jun 2011
              • 134
              • USA

              #46
              Re: Panasonic TCP-42S2 6blink

              I wish to thank wt2005 and Tom 66 for your guidance .
              Last edited by bikerbuddy; 01-07-2015, 09:47 AM.

              Comment

              • tw2005
                Badcaps Legend
                • Oct 2011
                • 6457
                • Australia

                #47
                Re: Panasonic TCP-42S2 6blink

                Originally posted by bikerbuddy
                Ok guys I finally got this tv going I bought a used SC board on line , the board was supposed to be a for parts or repair , After the board arrived I started to check out all the fets and diodes ,they all checked out good, put the board in and start it up , it started right up and been running for the last three days.

                Here are some test results from checking the transistors and fets :-
                + indicates red lead on multitester
                _ indicates black lead on multitester
                those results from working or not working board? Q601 you have at 2 and bit ohms?

                Comment

                • bikerbuddy
                  Senior Member
                  • Jun 2011
                  • 134
                  • USA

                  #48
                  Re: Panasonic TCP-42S2 6blink

                  Those results are for a working SC board tw2005

                  Comment

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