SHARP LED TV Model: LC-48LE653U

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  • Andrew F. Ali
    Badcaps Legend
    • Jan 2014
    • 2450
    • Trinidad & Tobago
    #1

    SHARP LED TV Model: LC-48LE653U

    Hi Friends. I got this TV to repair today. When it is plugged into the ac the white indicator LED comes on the Backlights come on and on the screen I can see the SHARP logo for about 3sec then the set shut down and repeats this cycle. The pwr-on, blu-on signals from the Main Bd cycles. I have a constant 19Vdc std-by voltage. I tested the backlights and the top and bottom strings are 80.6Vdc, resp. I disconnected the Main Bd from the PSU and forced the PSU on with a bench 3Vdc supply the backlights came on and stayed on and is getting a healthy supply.The T-CON Bd is getting a good 12Vdc supply, but cycling with the rest of the TV.
    I am thinking this is a Main Bd/Software issue. Is this diagnostic correct and if it is, could someone direct me to where I may get the software??
    Tags: None
    • budm
      Badcaps Legend
      • Feb 2010
      • 40746
      • USA
      #2
      Re: SHARP LED TV Model: LC-48LE653U

      It does sound like main board problem. where the exact problem is I do not know.
      Last edited by budm; 10-24-2017, 03:47 PM.
      Never stop learning
      Basic LCD TV and Monitor troubleshooting guides.
      http://www.badcaps.net/forum/showthr...956#post305956

      Voltage Regulator (LDO) testing:
      http://www.badcaps.net/forum/showthr...999#post300999

      Inverter testing using old CFL:
      http://www.badcaps.net/forum/showthr...er+testing+cfl

      Tear down pictures : Hit the ">" Show Albums and stories" on the left side
      http://s807.photobucket.com/user/budm/library/

      TV Factory reset codes listing:
      http://www.badcaps.net/forum/showthread.php?t=24809

        Comment

        • Andrew F. Ali
          Badcaps Legend
          • Jan 2014
          • 2450
          • Trinidad & Tobago
          #3
          Re: SHARP LED TV Model: LC-48LE653U

          Thanks budm for your response. Is there a site where I may be able to download the software? I think the eeprom may be defective or forgot the info.Attached is a photo of the Main Bd.
          The numbers I see on the label: CSD 3648-0122-0395 and another No.: 3648-0122-0150(4A)
          I can't seem to find a replacement board either.
          Attached Files

            Comment

            • dick_barton
              Badcaps Legend
              • Aug 2015
              • 6643
              • Wales
              #4
              Re: SHARP LED TV Model: LC-48LE653U

              Ignore, (found a mainboard but it was the wrong one.)
              Last edited by dick_barton; 10-25-2017, 04:41 AM.
              Willing to help but I'm no expert.

                Comment

                • Andrew F. Ali
                  Badcaps Legend
                  • Jan 2014
                  • 2450
                  • Trinidad & Tobago
                  #5
                  Re: SHARP LED TV Model: LC-48LE653U

                  Thanks dick barton. I was wondering if a 'hard start' might help me reset this?? Press down the VOL DOWN and INPUT buttons then plug into ac. Think I'll try that and see what happens. Will report back

                    Comment

                    • vinceroger69
                      Badcaps Legend
                      • Mar 2012
                      • 6714
                      • uk
                      #6
                      Re: SHARP LED TV Model: LC-48LE653U

                      Not sure if your a member of this forum but maybe worth asking on here too
                      http://televid-sib.ru/index.php?board=1178.0

                        Comment

                        • Andrew F. Ali
                          Badcaps Legend
                          • Jan 2014
                          • 2450
                          • Trinidad & Tobago
                          #7
                          Re: SHARP LED TV Model: LC-48LE653U

                          OK. Here is the update. I found and purchased an exact board off e-bay for USD 97.00. Kind of expensive but this was the only one available. I received it yesterday and installed it. IT WORKED!!!...TV is now fixed. I did not have to do any adjustments. Just plug n' play. Thanks budm you were correct, once again. Thanks to also to dick barton and vinceroger69 for helping me out here. Apparently this is a common problem with the LE653U series from the research done on other forums.

                            Comment

                            • dick_barton
                              Badcaps Legend
                              • Aug 2015
                              • 6643
                              • Wales
                              #8
                              Re: SHARP LED TV Model: LC-48LE653U

                              Glad you got there in the end but pity about the price.
                              Willing to help but I'm no expert.

                                Comment

                                • Andrew F. Ali
                                  Badcaps Legend
                                  • Jan 2014
                                  • 2450
                                  • Trinidad & Tobago
                                  #9
                                  Re: SHARP LED TV Model: LC-48LE653U

                                  Converted to my currency that is TTD 710.00. The price of the TV is TTD 4500.00. The 'Customer' was happy to get his TV this morning. So I guess it worked out OK after all.

                                    Comment

                                    • budm
                                      Badcaps Legend
                                      • Feb 2010
                                      • 40746
                                      • USA
                                      #10
                                      Re: SHARP LED TV Model: LC-48LE653U

                                      Thanks for the follow-up on the repair, glad to know it is fixed.
                                      Never stop learning
                                      Basic LCD TV and Monitor troubleshooting guides.
                                      http://www.badcaps.net/forum/showthr...956#post305956

                                      Voltage Regulator (LDO) testing:
                                      http://www.badcaps.net/forum/showthr...999#post300999

                                      Inverter testing using old CFL:
                                      http://www.badcaps.net/forum/showthr...er+testing+cfl

                                      Tear down pictures : Hit the ">" Show Albums and stories" on the left side
                                      http://s807.photobucket.com/user/budm/library/

                                      TV Factory reset codes listing:
                                      http://www.badcaps.net/forum/showthread.php?t=24809

                                        Comment

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