Sharp aquos LC-40LE810E

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  • Nightmare0
    Member
    • Oct 2015
    • 39
    • Slovakia

    #1

    Sharp aquos LC-40LE810E

    Hello

    First of all I am not professional and not native English speaker. So sorry in advance, if I don't understand something on first time. I have basic electronic knowledge, multimeter, soldering iron and skill. I have a lot of experience in xbox repair, modifying, ....

    I have Sharp LC-40LE810E tv.
    I think there is faulty power supply. I found a lot of threads here but I couldn't resolve my problem.

    When no try to turn on my tv, it won't start. It won't even light up led tubes. I can hear some coil noise from power supply. There is only flashing middle blue triangle (standby probably) led.
    It is flashing like. Flash, flash, pause. And again.
    I tried measure both led tubes, I am getting same resistance on both of them, so I assume tubes are good. When I try to measure led tubes output I am not getting any voltage. I was checking there aren't any leaking capacitors.
    I tried many reset tv combinations, it didn't helped. Optically I can't see any damage or burned parts.

    Could you guys guide me what to measure or try to find fault? Or at least help me to figure out what part is wrong, so I can buy some power supply replacement.
    I will provide any pictures you will need, just let me know and I will provide everything needed

    Thank you
  • freakaftr8
    Badcaps Legend
    • Oct 2012
    • 3743
    • USA

    #2
    Re: Sharp aquos LC-40LE810E

    Is it one long flash followed by two short flashes and over and over again?
    Did I leave the soldering iron on?

    Comment

    • budm
      Badcaps Legend
      • Feb 2010
      • 40746
      • USA

      #3
      Re: Sharp aquos LC-40LE810E

      Please up load good clear pictures of the whole back side of the TV so we can see all the boards, then the pictures of each board.
      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

      • Nightmare0
        Member
        • Oct 2015
        • 39
        • Slovakia

        #4
        Re: Sharp aquos LC-40LE810E

        Hello

        Thank you for your quick answer.
        Led is flashing only maybe 1 second flash, 1second flash 1 second pause. I will upload some video, so you can see it by yourself and we can avoid misunderstanding.

        When I hit power button on touch panel, tv seems to trying to start up. I can hear change noise from power supply but led won't light up. After maybe 10 seconds tv will go back to flashing.

        Unfortunately, currently I am at work. I will make you video of flashing, photos of all boards.

        Comment

        • Nightmare0
          Member
          • Oct 2015
          • 39
          • Slovakia

          #5
          Re: Sharp aquos LC-40LE810E

          I just found service manual online. I found out, that I have to push menu button to get secondary flashing. It was said to use remote control. But I don't have any. I hope, i can use menu button on front panel, can I?

          Comment

          • freakaftr8
            Badcaps Legend
            • Oct 2012
            • 3743
            • USA

            #6
            Re: Sharp aquos LC-40LE810E

            yes as budm said please upload pictures of the back of the TV I worked on one of these before. Actually I worked on quite a few of them. You may have led failure if you have one long one fast blink. this model is plagued with LED failures in the strips. mostly the upper right hand LED burns out on the right top side strip of the TV. before jumping to conclusions so I should recommend that you test to make sure that your power supply is attempting to output dc voltage to the LED strips.

            worst case scenario you have to remove the bezel and the lcd panel and all the diffusers to access the led strips.
            Did I leave the soldering iron on?

            Comment

            • Nightmare0
              Member
              • Oct 2015
              • 39
              • Slovakia

              #7
              Re: Sharp aquos LC-40LE810E

              Hello

              Sorry it took me so long. I fall asleep after night shift. Here I uploaded some photos of power supply and mainboard. I hope you can see everything you need. If not, just let me know. I will try to take better photo.

              Here is video of flashing led.
              Code:
              https://sendvid.com/6uwvzgz8
              When I hit menu button on front panel, it won't change anything.
              If I am correct it should be power supply error. But I don't know how to get some secondary error.

              I tried to start tv and to measure voltage on led output. But I couldn't measure anything. I can try to measure it again.
              Attached Files

              Comment

              • freakaftr8
                Badcaps Legend
                • Oct 2012
                • 3743
                • USA

                #8
                Re: Sharp aquos LC-40LE810E

                Look at the video that's an interestin blink code.. that's like 2 - 2.

                Led failures are 1 - 1 blinks. Meaning one long and one short blink.

                Tcon and panel failure is two long, five short blinks.

                You're getting two short blinks. Now this could be code 2 - 2. I'm not sure. Unless we are really seeing 1 - 1. Then that would indicate led failure or backlight failure as sharp would put it.
                Did I leave the soldering iron on?

                Comment

                • budm
                  Badcaps Legend
                  • Feb 2010
                  • 40746
                  • USA

                  #9
                  Re: Sharp aquos LC-40LE810E

                  It does look like 2-2. I did not get the service manual to see what the code 2-2 is yet.
                  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

                  • freakaftr8
                    Badcaps Legend
                    • Oct 2012
                    • 3743
                    • USA

                    #10
                    Re: Sharp aquos LC-40LE810E

                    Without the service manual the only thing I've managed the drum up on the interwebs is that code 2 - 2 is some unknown power supply failure. Let's not double down on that yet until we find out from the service manual
                    Did I leave the soldering iron on?

                    Comment

                    • budm
                      Badcaps Legend
                      • Feb 2010
                      • 40746
                      • USA

                      #11
                      Re: Sharp aquos LC-40LE810E

                      Service manual from ELEKTROTANYA.
                      Need to start checking Voltages.
                      Attached Files
                      Last edited by budm; 10-09-2015, 10:26 AM.
                      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

                      • Nightmare0
                        Member
                        • Oct 2015
                        • 39
                        • Slovakia

                        #12
                        Re: Sharp aquos LC-40LE810E

                        Wow, you are quick.

                        So that means my failture is

                        Power Error 2 UR+13.5V error (*2) ?

                        Could you guide me a little, where should I start to check voltage? And mainly what shoul I be lookong for?

                        Thank you

                        /edit

                        On page 41 I found some volage guide. Is it that? can I measure voltage only with connected power, or should I connect power supply to mainboard and everything?
                        Last edited by Nightmare0; 10-09-2015, 10:30 AM.

                        Comment

                        • budm
                          Badcaps Legend
                          • Feb 2010
                          • 40746
                          • USA

                          #13
                          Re: Sharp aquos LC-40LE810E

                          Your pictures of your power supply board (DELTA DPS-126CP-1A) are cloudy and not in focused for me to be able to trace out the connections of the board or able to read the pin names of each pin of the connectors. I also need good clear pictures of the bottom side of the board. Shopjimmy does not have good clear picture either.
                          You need to check the UR 13V pin on the power supply board.
                          Attached Files
                          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

                          • Nightmare0
                            Member
                            • Oct 2015
                            • 39
                            • Slovakia

                            #14
                            Re: Sharp aquos LC-40LE810E

                            Here I found one picture of this board. Sadly its only part of bottom board.

                            I can try to make better pictures. If I won't be able to take good photos, I will borrow camera from my sister and provide better photos
                            Attached Files

                            Comment

                            • budm
                              Badcaps Legend
                              • Feb 2010
                              • 40746
                              • USA

                              #15
                              Re: Sharp aquos LC-40LE810E

                              Check the Connector PD pin 1& 2.
                              Where did you find that picture? Is there the picture of the whole board?
                              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

                              • Nightmare0
                                Member
                                • Oct 2015
                                • 39
                                • Slovakia

                                #16
                                Re: Sharp aquos LC-40LE810E

                                No I couldn't find whole board. Its Just from some polish site i found on google images. Here I uploaded some photos of board. I think they are better. But I couldn't find any tool to connect them together. Do you think it will help and dou you will be able to read that? If not I can try to do that in paint maybe
                                Attached Files

                                Comment

                                • Nightmare0
                                  Member
                                  • Oct 2015
                                  • 39
                                  • Slovakia

                                  #17
                                  Re: Sharp aquos LC-40LE810E

                                  Sorry for my stupid question. But as I said I am not professional electrician.
                                  How should I measure that?

                                  One probe on Pin 1 second probe on Pin2 on DC, right?
                                  Because I am not getting any voltage, when I measure that like that.

                                  Comment

                                  • budm
                                    Badcaps Legend
                                    • Feb 2010
                                    • 40746
                                    • USA

                                    #18
                                    Re: Sharp aquos LC-40LE810E

                                    Meter in DCV, Black probe on the chassis, Red probe on either pin 1 or pin 2 (pin 1 and pin 2 are tied together so it does not matter if you use pin 1 or pin 2), then turn on the TV power switch and see what you get.
                                    You might as well check all the Voltage of the PD pins, you MUST put the pin names after the Voltage readings so we can tell what else is missing.
                                    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

                                    • Nightmare0
                                      Member
                                      • Oct 2015
                                      • 39
                                      • Slovakia

                                      #19
                                      Re: Sharp aquos LC-40LE810E

                                      Sorry I was measuring with mainboard disconnected. Now I connected mainboard and started to measure again.
                                      I was measured as was advised. Touched probes and turned on. Turn off. Change probe to another pin and turn on again....

                                      So final voltages are:
                                      PIN 1 - 12,9V
                                      PIN 2 - 12,9V
                                      PIN 3 - 12,9V
                                      PIN 4 - 12,9V
                                      PIN 5 - 0V
                                      PIN 6 - 0V
                                      PIN 7 - 0V
                                      PIN 8 - 0V
                                      PIN 9 - 0V
                                      PIN 10 - 3V
                                      PIN 11 - 4,9V
                                      PIN 12 - 12V

                                      Sorry for bad measuring before
                                      Last edited by Nightmare0; 10-09-2015, 12:53 PM. Reason: Bad measuring

                                      Comment

                                      • budm
                                        Badcaps Legend
                                        • Feb 2010
                                        • 40746
                                        • USA

                                        #20
                                        Re: Sharp aquos LC-40LE810E

                                        Please provide the pin names of each pin so I know what I am looking at as requested in post 18: MUST put the pin names after the Voltage readings so we can tell what else is missing.
                                        Last edited by budm; 10-09-2015, 02:11 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

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