Sharp Aquos Lc-80LE757U flashing Sharp on screen when plugged in

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Diah
    Badcaps Legend
    • Feb 2013
    • 6341
    • Germany

    #21
    Re: Sharp Aquos Lc-80LE757U flashing Sharp on screen when plugged in

    Originally posted by nomoresonys
    I didnt think of that possibility, your replacement powerboard should be very much like this: https://www.shopjimmy.com/sharp-runt...ply-led-board/
    if his PSU replacement match.. then the blown fly out MB NOR start script too.

    Comment

    • sefoster
      Member
      • Nov 2022
      • 10
      • USA

      #22
      Re: Sharp Aquos Lc-80LE757U flashing Sharp on screen when plugged in

      Originally posted by Diah
      if his PSU replacement match.. then the blown fly out MB NOR start script too.
      My replacement is a match I ensured before I bought it that it was the same one. even with our new power board and original t-con we had the same issue. We replaced the t-con due to a suggestion from a different post somewhere else. However I need to replace the main board as there are burn marks on that now that weren't there before

      Comment

      • Diah
        Badcaps Legend
        • Feb 2013
        • 6341
        • Germany

        #23
        Re: Sharp Aquos Lc-80LE757U flashing Sharp on screen when plugged in

        before you are going to replace MB, need to check the currents on both LED BL sockets.. by each group of LED 1 till LED6. be ware on + & - and note each time when you turn on yours DMM reading for each group.

        Comment

        • sefoster
          Member
          • Nov 2022
          • 10
          • USA

          #24
          Re: Sharp Aquos Lc-80LE757U flashing Sharp on screen when plugged in

          There is a spot on the MB that is now burned and it wasn't;t before so I am assuming I will need to replace it as I am not skilled enough to fix anything on there. This is still new to me and I don't want to mess anything else up as I'm not sure of how exactly to test each section. Like I said I'm a newbie so this is a first for me

          Comment

          Related Topics

          Collapse

          • dmcabs
            SHARP LC-60LE640X display flashing white noise patches and totally dropping out randomly
            by dmcabs
            Hey guys,

            I have a SHARP LC-60LE640X TV that has suddenly developed an intermittent fault of flashing white noise patches (appears like an Analog tuner off signal) and then totally dropping out.
            This model I believe is also known as LC-60LE600U or LC-60LE640U in other regions.

            FYI, a long time ago I was a component level repair tech for all consumer electronics and IT equipment.
            I'm a bit rusty but still have ability to dig right down.

            I measured all power supply lines and checked them for AC ripple voltage. Noting any lines that exceeded about...
            09-21-2024, 11:09 AM
          • JunkmanJimbo
            sharp lc-65ub30u plays but screen is flashing on and off
            by JunkmanJimbo
            Hey guys! It has been awhile since I've been on here. I hope everyone is doing well. I just picked up this Sharp lc-65ub30u. It plays but the screen is flashing on and off. Other than that i seems to be a great tv. Any ideas what the problem might be? I haven't pulled the back off yet. I thought I would get some opinions first. Thanks in advance for any help you can offer.
            09-07-2024, 09:45 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 40ā€ 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
          • STKR123
            Elitebooks (820, 840 etc. all gens) and those continuously flashing Power LED + flashing CapsLock LED
            by STKR123
            As the Elitebooks (820, 840 all gens) only show flashing Power LED and flashing CapsLock (continuously) + a very soft "ticking" noise near the DC Jack,
            I wonder if re-flashing the BIOS might be of any use here.

            As far as I understood, steady flashing either means insufficient power or a CPU/GPU/Motherboard issue. I use the original 65watt power supply.

            There are so many threads out there, but most of the solutions involve flashing codes, which I dont have or claim that you MUST use the original power supply, do a hard reset, reseat the RAM, clean the RAM,...
            11-03-2024, 06:58 AM
          • 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
          • Loading...
          • No more items.
          Working...