Hitachi P50S601 plasma tv horizontal lines

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  • tech2014
    Badcaps Veteran
    • Aug 2014
    • 807
    • Canada
    #1

    Hitachi P50S601 plasma tv horizontal lines

    This tv originally had a power issue. The screen would come on for a few seconds and there was a vertical bar on the right side of the screen. I found the upper buffer was shorted. I replaced the board. The tv now powers up, but now it has these lines on it. Could this be a bad YSUS?
    I disconnected one buffer at a time and the lines were still there, so its not a buffer board?




    Attached Files
    Last edited by tech2014; 10-19-2015, 05:37 PM.
    Tags: None
    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK
      #2
      Re: Hitachi P50S601 plasma tv horizontal lines

      I would check the buffer ribbon cables are seated right.
      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

        • tech2014
          Badcaps Veteran
          • Aug 2014
          • 807
          • Canada
          #3
          Re: Hitachi P50S601 plasma tv horizontal lines

          Hi Tom. Thats the first thing I tried. I reseated them all a few times and no change.

            Comment

            • ozzy214
              Badcaps Veteran
              • Nov 2013
              • 319
              • usa
              #4
              Re: Hitachi P50S601 plasma tv horizontal lines

              That looks like a buffer issue to me. Did you get a bad buffer? Look at the ic chips to see if they are meleted or have craters in them.

                Comment

                • tech2014
                  Badcaps Veteran
                  • Aug 2014
                  • 807
                  • Canada
                  #5
                  Re: Hitachi P50S601 plasma tv horizontal lines

                  The buffer ICs look good on both, no craters. If the buffer board is the wrong version, would that cause the problem. It looks exactly the same as the original one.

                    Comment

                    • Digglr
                      Member
                      • Mar 2014
                      • 30
                      • USA
                      #6
                      Re: Hitachi P50S601 plasma tv horizontal lines

                      I have the exact same issue with the same model. The SDR-U boards were bad, replaced with brand new ones. Now it powers up, but lines. I reseated/cleaned ribbons many times. No change. Is it possible its the Y-sus?
                      Attached Files
                      Last edited by Digglr; 03-15-2016, 06:29 PM. Reason: Adding pic

                        Comment

                        • tom66
                          EVs Rule
                          • Apr 2011
                          • 32560
                          • UK
                          #7
                          Re: Hitachi P50S601 plasma tv horizontal lines

                          This is not the Y-main, it is buffers or connections. The cables are very hard to get seated right, so remove the ones for the part of the screen that is dodgy and try again.
                          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

                            • RJARRRPCGP
                              Badcaps Legend
                              • Jul 2004
                              • 6304
                              • USA
                              #8
                              Re: Hitachi P50S601 plasma tv horizontal lines

                              Originally posted by tom66
                              The cables are very hard to get seated right.
                              Just like the RAM on socket 775 motherboards..... LOL...
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                                Comment

                                • Digglr
                                  Member
                                  • Mar 2014
                                  • 30
                                  • USA
                                  #9
                                  Re: Hitachi P50S601 plasma tv horizontal lines

                                  Is there a trick to the cables? I'm definitely no expert, but have tried seating the cables about 30 different times.

                                    Comment

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