Hitachi Plasma No Power P42H401

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  • avaktech
    Senior Member
    • Jan 2012
    • 68
    • US
    #1

    Hitachi Plasma No Power P42H401

    Hey all,

    I picked up a nice Hitachi plasma today that the owner says was hit by lightning. Well I found an open resistor/fusible but I need a little input. I am a bit of a tard so please help me with the color coding on this. Also, whats the chances of this thing firing up and working with just this replaced? Should I try to determine if there is a bad component downstream of this or just turn and burn. Well hopefully not burn.
    Attached Files
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    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK
      #2
      Re: Hitachi Plasma No Power P42H401

      Hmm. I get 68.5 ohm +/- 0.25%, doesn't seem right!

      Where is that resistor on the power supply (picture of surrounding area is a big help), it may be possible to estimate its value. Also do you have a part # for the power supply?
      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

        • avaktech
          Senior Member
          • Jan 2012
          • 68
          • US
          #3
          Re: Hitachi Plasma No Power P42H401

          First off thanks for the speedy reply, board number is HA02271-b. Resistor is to the far left in the middle. I hope the pics suffice.
          Attached Files

            Comment

            • tom66
              EVs Rule
              • Apr 2011
              • 32560
              • UK
              #4
              Re: Hitachi Plasma No Power P42H401

              That is an EMI resistor, it will appear open on almost all multimeters as it measures from 10 megohm to 33 megohm. It's unlikely to be the fault.
              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

                • avaktech
                  Senior Member
                  • Jan 2012
                  • 68
                  • US
                  #5
                  Re: Hitachi Plasma No Power P42H401

                  That makes sense, thank you.

                    Comment

                    • tom66
                      EVs Rule
                      • Apr 2011
                      • 32560
                      • UK
                      #6
                      Re: Hitachi Plasma No Power P42H401

                      The next step to check would be if you are getting any output voltages at all, such as 5V standby.
                      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

                        • splitcrete
                          Badcaps Veteran
                          • Dec 2012
                          • 387
                          • usa
                          #7
                          Re: Hitachi Plasma No Power P42H401

                          I just fixed same tv no power.It was the main digital board.Changed board and it is working fine now. Nice for 1080i

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