sharp aquos lc-70le757u screen is red like lava, slow refresh rate.

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • 77slurm77
    Member
    • Jan 2015
    • 10
    • USA

    #1

    sharp aquos lc-70le757u screen is red like lava, slow refresh rate.

    I have come across a 70 inch sharp aquos lc-70le757u 3d tv. I have replaced the TCON board and I'm still having issues with the tv. Please see the attached picture to better understand.


    Thank you.

    http://imgur.com/jUHQC08
    Last edited by 77slurm77; 02-11-2015, 06:30 PM. Reason: image didn't upload
  • Shinju
    Badcaps Legend
    • Mar 2014
    • 1239
    • USA

    #2
    Re: sharp aquos lc-70le757u screen is red like lava, slow refresh rate.

    Probably bad panel, these 70"'sharp TVs seem to have a high panel failure rate. The local shop I get parts from has/had 4 of them all with tab bond issues that were not able to be repaired.

    One thing you might try is to find out how to access the Service Menu and see if there is a pre and post t-con test pattern set.

    Comment

    • 77slurm77
      Member
      • Jan 2015
      • 10
      • USA

      #3
      Re: sharp aquos lc-70le757u screen is red like lava, slow refresh rate.

      OK thanks, I was thinking it was the panel but I wasn't sure. The picture is so messed up I can't even see the menu on the screen.

      It's covered up by red "lava."

      I was actually a dummy and placed the original T-CON board back in and then looked at the one I ordered and it's a slightly different model causing the video cord not to fit the board.

      Is it worth ordering another T-CON board or do you think it's the panel?

      Comment

      • Shinju
        Badcaps Legend
        • Mar 2014
        • 1239
        • USA

        #4
        Re: sharp aquos lc-70le757u screen is red like lava, slow refresh rate.

        Snap some photos of your TV exposed boards. I am not sure what you mean by " not fitting into the board".

        Comment

        • 77slurm77
          Member
          • Jan 2015
          • 10
          • USA

          #5
          Re: sharp aquos lc-70le757u screen is red like lava, slow refresh rate.

          Here's a side by side of my original and what I ordered. The video port on the one I ordered is smaller and won't fit. the part number also ends in a 02 instead of a 20.

          This was my fault as I did not pay attention to the pictures before ordering.

          http://imgur.com/rQKgNLB

          Comment

          • 77slurm77
            Member
            • Jan 2015
            • 10
            • USA

            #6
            Re: sharp aquos lc-70le757u screen is red like lava, slow refresh rate.

            Any ideas?

            Comment

            • freakaftr8
              Badcaps Legend
              • Oct 2012
              • 3743
              • USA

              #7
              Re: sharp aquos lc-70le757u screen is red like lava, slow refresh rate.

              So what you are saying is you never got a chance to try the second tcon board cause of an incomparable connector?
              Did I leave the soldering iron on?

              Comment

              • 77slurm77
                Member
                • Jan 2015
                • 10
                • USA

                #8
                Re: sharp aquos lc-70le757u screen is red like lava, slow refresh rate.

                Correct, the one I purchased is not compatible. Should I take the gamble and get another board?

                Comment

                • freakaftr8
                  Badcaps Legend
                  • Oct 2012
                  • 3743
                  • USA

                  #9
                  Re: sharp aquos lc-70le757u screen is red like lava, slow refresh rate.

                  I'm not sure that uniform picture of purply vertical lines think that it is at con board but the blob on the bottom center of the picture makes me more or less think it's a panel failure
                  Did I leave the soldering iron on?

                  Comment

                  • 77slurm77
                    Member
                    • Jan 2015
                    • 10
                    • USA

                    #10
                    Re: sharp aquos lc-70le757u screen is red like lava, slow refresh rate.

                    That's what I'm thinking. What's the best course of action? Take the boards out and sell them? Sell it as a whole?

                    Comment

                    • freakaftr8
                      Badcaps Legend
                      • Oct 2012
                      • 3743
                      • USA

                      #11
                      Re: sharp aquos lc-70le757u screen is red like lava, slow refresh rate.

                      first you can verify it by pulling the frame and checking the ribbons going into the panel to see if you have a bad connection. then if it t-con board is cheap enough for the proper one you could try it but if it's not then yes part the thing out. Things that would probably sell are main boards and tcon's and led strips. you'll probably end up selling those things pretty quickly because if other people are having this problem so probably Most likely by yours thinking that that'll fix their problem.
                      Last edited by freakaftr8; 02-11-2015, 11:30 PM.
                      Did I leave the soldering iron on?

                      Comment

                      Related Topics

                      Collapse

                      • sefoster
                        Sharp Aquos Lc-80LE757U flashing Sharp on screen when plugged in
                        by sefoster
                        I have a Sharp Aquos LC-80LE757U that randomly made a loud popping noise when when watching TV one day. We found that the fuse blew and the thermistor. We ended up replacing the entire power supply board and have also replaced the TCON board. Now as soon as I plug the TV in it lights up and has the Sharp logo flashing on and off of the screen. If I unplug the ribbon cable from the TCON board to the main board I get the 2 long 5 short error code. Any ideas on where to go from here? We've tried resetting it but nothing has worked. If we plug it in and let it cycle through the flashing of the Sharp...
                        11-20-2022, 09:29 AM
                      • jonah1024
                        Sharp Aquos LC-40UG7252E LCD TV burn in?
                        by jonah1024
                        Hello!

                        I'm a few days old into this TV screens repair universe so please bear with me.

                        Recently, and all of a sudden my 40” 4K Sharp Aquos LCD TV turned on with colors all smudged in some places on the screen that remain like that even without any kind of video source. I do have image but the colors are smudged/tinted/ washed out in patches as per defects. This to me looks similar to burn in but I’m shore this is not an OLED.

                        - I did the classic unplug and hold power button to discharge the caps but it didn't help.
                        - I did a factory reset as well...
                        07-16-2024, 04:23 AM
                      • joblo37pam
                        Sharp LC-80LE844U Blinks 2 slow, 5 fast
                        by joblo37pam
                        It's been a while since I've checked in here or needed input on narrowing down what to replace on a TV repair, but I've got one on my bench now that has me wondering. The lack of part (board) availability means I may need to do some component-level diagnostics, and a second opinion is always good when it comes to that.

                        The issue - Sharp LC-80LE844U does not display. Power light comes on for a while, then you can hear a relay click off and the light blinks twice slow, then five times fast. Service manual points to 'Panel Power Supply Error' with this code, but isn't much more help...
                        10-26-2023, 02:17 PM
                      • klassic
                        Sharp Aquos LC-60LE635E three blinks
                        by klassic
                        Hi community,

                        I will describe my problem with a TV in those short following terms to be the most precise :

                        What i have :
                        Sharp Aquos LC-60LE635E
                        power board DPS-162KP-1
                        main logic board QPWBXF733WJN2

                        symptoms :
                        white led light logo at startup,
                        after 2 minutes, blinking 3 times a row, repeating
                        no backlight (and apparently no picture, checked panel with flashlight)
                        no startup sound

                        powerboard investigations :

                        1-2 PNL : 0v
                        3-4 GND
                        5-6-7-8 UR : 13.15v
                        9-10-11-12...
                        10-24-2023, 01:39 PM
                      • foxyUK
                        Sharp Aquos LC-32LE600E, No 12v as no PNL_POW
                        by foxyUK
                        Can anyone help me diagnose this? Almost not worth bothering with, but it has 'sentimental value' for the owner. I'm no TV technician, but dabble a bit.
                        The TV has standby power but no reaction at all to switching on or reboot steps, No flashing lights or response to menu button. All voltages on the power board are correct apart from missing voltage on pin 12 of CN7003.
                        There is 13 v on U7053 but no 3v signal to switch it on. I don't really understand whether the 3v should come from U7401 in the standby control area, or (as suggested elsewhere) from the mainboard via pin 12....
                        10-22-2024, 10:27 AM
                      • Loading...
                      • No more items.
                      Working...