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    Sharp LC37D44U Blinking LED

    I have a Sharp LC37D44U and I was watching it when it shut off and the power + OPC lights flash 2x each then the OPC light flashes 3x, not sure what this means, I cannot find any info on this anywhere. Anyone know?

    #2
    Re: Sharp LC37D44U Blinking LED

    I have been able to get sound after unplugging the unit and while unit is unplugged hold the volume up button and channel down buttons down and while depressing both buttons plug the unit in which should have put it in SERVICE MOD. but the picture is blank, I can see the backlight is on but no picture.

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      #3
      Re: Sharp LC37D44U Blinking LED

      I dont know if you have a users manual or not but here is where you can get one. http://www.sharp.ca/manuals/default2.asp
      Half way down the page.

      Another site with some info on troubleshooting this tv is:
      http://www.ehow.com/how_5242884_trou...arp-aquos.html
      Last edited by Dgtech; 06-02-2010, 07:52 PM.
      The strong-minded rise to the challenge of their goals,the weak-minded BECOME HATERS

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        #4
        Re: Sharp LC37D44U Blinking LED

        Well I took the back off and I found everything to be looking good exept I noticed that 2 screws are missing on the power board, they have what looks to be grounding pads but no screws, doesn't look like there ever was so I don't know would that be it? I have heard some electronics can detect missing screws. Here are the pics, all caps look good.
        http://img176.*************/i/img0062pn.jpg/
        http://img249.*************/i/img0061tt.jpg/
        http://img215.*************/i/img0060t.jpg/
        Last edited by snipe; 06-02-2010, 08:23 PM.

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          #5
          Re: Sharp LC37D44U Blinking LED

          So no one has any idea as to what it is?

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            #6
            Re: Sharp LC37D44U Blinking LED

            Originally posted by snipe
            So no one has any idea as to what it is?
            The link above may point to the service manual; the service manual is also on Scribd.

            The failure codes are listed on pages 6-14 and 6-15. This appears to indicate failures in the 3.3V and UR6V supplies. The 3.3V supply is generated on the main board from the 5V supply, I didn't notice where the UR6V supply comes from.

            The power supply schematic is not included. As a first step, look at the labels on the connectors of the power supply.

            PlainBill
            For a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.

            Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.

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              #7
              Re: Sharp LC37D44U Blinking LED

              Well I have taken it in to be looked at and well it aint gonna be cheap, about $900.00 to repair, so I am working on getting Sharp to repair or replace the TV under warranty, so far it looks like they might.

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                #8
                Re: Sharp LC37D44U Blinking LED

                Well Sharp has offered me an LC40D68UT as a replacement @ $285.00. As much as I am not happy about it, it is cheaper then buying a new TV from a store. Oh the LCD screen on the old one has a short, that is what the repair shop has found, so I am trying to find someone that might have a dead TV that I can steal parts from, but I ain't holding my breath

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                  #9
                  Re: Sharp LC37D44U Blinking LED

                  Hello, I'm not sure if this Post is dead. But i have the same problem with the same tv.
                  found service Guide here

                  i'll let you guys know if I can fix this set and i'll post.

                  Comment


                    #10
                    Re: Sharp LC37D44U Blinking LED

                    Originally posted by snipe View Post
                    I have a Sharp LC37D44U and I was watching it when it shut off and the power + OPC lights flash 2x each then the OPC light flashes 3x, not sure what this means, I cannot find any info on this anywhere. Anyone know?
                    Did you not have any electrician around you I think he can guide you well

                    Comment


                      #11
                      Re: Sharp LC37D44U Blinking LED

                      Originally posted by snipe View Post
                      Well Sharp has offered me an LC40D68UT as a replacement @ $285.00. As much as I am not happy about it, it is cheaper then buying a new TV from a store. Oh the peimar led lights screen on the old one has a short, that is what the repair shop has found, so I am trying to find someone that might have a dead TV that I can steal parts from, but I ain't holding my breath
                      That is very hard thing to do.

                      Comment


                        #12
                        Re: Sharp LC37D44U Blinking LED

                        Well I have kept that TV around all this time and I just came across an LC-32D44U that the sound quit on, so after doing some research I found that this TV uses the same Mainboard as the LC-37D44U and since the 37" has a toasted LCD panel I swapped the mainboard and boom, sound fixed on the 32", so I guess it paid off to keep it around all this time.

                        Comment


                          #13
                          Re: Sharp LC37D44U Blinking LED

                          Originally posted by snipe View Post
                          Well I took the back off and I found everything to be looking good exept I noticed that 2 screws are missing on the power board, they have what looks to be grounding pads but no screws, doesn't look like there ever was so I don't know would that be it? I have heard some electronics can detect missing screws. Here are the pics, all caps look good.
                          http://img176.*************/i/img0062pn.jpg/
                          http://img249.*************/i/img0061tt.jpg/
                          http://img215.*************/i/img0060t.jpg/

                          WOW lol!! After read your comment ive checked if screw was missing on psu and look what i found ??? XD strange ..
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