Can we do this with no pics?

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  • Ashroyer05
    Senior Member
    • Sep 2013
    • 162
    • U.S
    #1

    Can we do this with no pics?

    My Hitachi would power on, the screen would come on then after 5 seconds or less the screen would go out and then the power LED would flash green repeatedly. I am trying to figure out if it is the main board or power supply causing the issue. I don't have a good camera right now for pics.

    Steps taken:
    1. Disconnected the sustain boards.
    2. Measured voltages from psu to main
    Pin 1. reads constant standby of 3.371V
    Pin 6. On reads around 5.18V
    Pin 6. off reads 0V

    By off I mean when the screen goes out along with the sound of a relay.
    Thanks for any input you may have.
    Tags: None
    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK
      #2
      Re: Can we do this with no pics?

      How about a model number at least? Written on the rear of the set for example P42L01UA.
      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

        • Ashroyer05
          Senior Member
          • Sep 2013
          • 162
          • U.S
          #3
          Re: Can we do this with no pics?

          Cmp4121hdu

            Comment

            • Ashroyer05
              Senior Member
              • Sep 2013
              • 162
              • U.S
              #4
              Re: Can we do this with no pics?

              bump**

                Comment

                • Ashroyer05
                  Senior Member
                  • Sep 2013
                  • 162
                  • U.S
                  #5
                  Re: Can we do this with no pics?

                  http://www.retrevo.com/pdf/352ci863/...CMP4121HDU-511
                  page (39)
                  by "flickering" I think they mean blinking which is what it does after the screen shuts back off. It did say it is in "power saver" mode when the display kicked on.

                    Comment

                    • Ashroyer05
                      Senior Member
                      • Sep 2013
                      • 162
                      • U.S
                      #6
                      Re: Can we do this with no pics?

                      *page (23)* sorry

                        Comment

                        • Ashroyer05
                          Senior Member
                          • Sep 2013
                          • 162
                          • U.S
                          #7
                          Re: Can we do this with no pics?

                          The clicking is coming from around those 2 big caps in the picture.
                          Attached Files

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