Sharp LC70LE640U - No Picture

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  • Audioplus
    Senior Member
    • Feb 2012
    • 157
    • USA
    #1

    Sharp LC70LE640U - No Picture

    LED just flashes continuously, no picture, you can power off with remote. I was thinking main board, an associate commented LED Strip, or an associated smd (sensor mounted device?), but can't find an led strip associated with that model.
    Any ideas out there?

    As always, thanks for suggestions!

    Anyone familiar with LED Address Board ? RUNTKA842WJZZ
    Last edited by Audioplus; 07-28-2014, 12:56 PM. Reason: New info
    Tags: None
    • Audioplus
      Senior Member
      • Feb 2012
      • 157
      • USA
      #2
      Re: Sharp LC70LE640U - No Picture

      Correction, from his wife, MUST UNPLUG TO POWER DOWN, T-CON BOARD?

        Comment

        • selldoor
          Slow Learner
          • Dec 2010
          • 7870
          #3
          Re: Sharp LC70LE640U - No Picture

          Anything in here to help?
          Please upload pictures using attachment function when ask for help on the repair
          http://www.badcaps.net/forum/showthread.php?t=39740

            Comment

            • Audioplus
              Senior Member
              • Feb 2012
              • 157
              • USA
              #4
              Re: Sharp LC70LE640U - No Picture

              Thank you, I hope so? Shop Jimmy says a Main Board, Sharp says a lamp, in this service manual, it says a ROM data failure.
              I can't get a straight answer from Sharp, so I am hoping if it's a ROM issue, a Main Board will do it, I picked up a T-Con for $20 just in case?

              Second case scenario may be a service menu lamp reset, that would be nice?

              I appreciate the assistance!
              Last edited by Audioplus; 07-29-2014, 02:24 PM. Reason: additional info

                Comment

                • tom66
                  EVs Rule
                  • Apr 2011
                  • 32560
                  • UK
                  #5
                  Re: Sharp LC70LE640U - No Picture

                  Most common from memory is open circuit LED inside panel - a pain in the behind to fix.
                  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

                    • Audioplus
                      Senior Member
                      • Feb 2012
                      • 157
                      • USA
                      #6
                      Re: Sharp LC70LE640U - No Picture

                      Tom, that's my biggest nightmare, I'll know tomorrow.

                        Comment

                        • tibimakai
                          Badcaps Legend
                          • Jan 2012
                          • 3680
                          • USA
                          #7
                          Re: Sharp LC70LE640U - No Picture

                          Nothing at all shows up on the screen, not even for a second?
                          Actually my LC65D64U it was the easiest to take apart.
                          Metal frame with the LCD panel, came off as one unit. I have never seen that one before.
                          Mine, it's an older LCD model and the LED flashes continuously, after showing a blue screen and channel# for two seconds, but only on one side.
                          I have ordered the inverter for it.

                            Comment

                            • Audioplus
                              Senior Member
                              • Feb 2012
                              • 157
                              • USA
                              #8
                              Re: Sharp LC70LE640U - No Picture

                              Finally Have My Hands On It, 2 Long Flashes And 2 Short, Indicates A Power Board, Hope So
                              I'll Confirm

                                Comment

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