acoustic solutions lcd37761f1080p sound but no pic

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • wreksta
    Badcaps Veteran
    • Aug 2013
    • 508
    • england

    #1

    acoustic solutions lcd37761f1080p sound but no pic

    hi all been a while
    I had this set come in today bad power board so repaired it
    tv fires up now but i have no picture I have back lights and sound from hdmi source

    I wiggled tcon connector checked tcon board and it seam like it was coated in some type of oil
    I wiped this away

    tcon fuse is fine

    checked and reseated screen cables to no avail

    any ideas
  • tom66
    EVs Rule
    • Apr 2011
    • 32560
    • UK

    #2
    Re: acoustic solutions lcd37761f1080p sound but no pic

    Check volts each end of fuse.
    Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
    For service manual, schematic, boardview (board view), datasheet, cad - use our search.

    Comment

    • mcfly666
      Senior Member
      • Oct 2013
      • 71
      • uk

      #3
      Re: acoustic solutions lcd37761f1080p sound but no pic

      The oil sounds like a capacitor has gone, but I'm far from an expert on the matter. I don't know if their used in TV applications, but there are oil based caps.

      Comment

      • wreksta
        Badcaps Veteran
        • Aug 2013
        • 508
        • england

        #4
        Re: acoustic solutions lcd37761f1080p sound but no pic

        main board was faulty replaced all working now thanks all fdor your comments

        Comment

        Related Topics

        Collapse

        • ChaosLegionnaire
          what i went through dealing with my mobo with dead onboard sound!
          by ChaosLegionnaire
          so i took out one of my spare gigabyte ep35-ds3r mobos from storage for use to do some cpu, ram and video card testing of stuff i bought from ebay and got for free from momaka. he bought 50 e8400 cpus for cheap from ebay some years ago and i decided to help him relieve him of some of his supply since he had waaaay too many!! what did we say about hoarding too much stuff and depriving others of them?! *cough* socialism *cough* lol!

          i had to blow some dust off the board and heatsinks with the datavac as i didnt clean it up before putting it in storage. after finishing...
          09-13-2022, 09:02 AM
        • LEECH666
          Grundig Vision 9 37 9880 T USB (Chassis SR) TV Repair Help - Distorted Subwoofer Sound and overall weird sound waveforms
          by LEECH666
          Good day ladies and gentleman!

          I am currently trying to repair a Grundig Vision 9 37 9880 T USB LCD TV for a friend that has a weird audio problem. Basically everything works fine except for the heavily distorted sound when the Subwoofer module is connected and there is a buzzing sound coming from the PSU PCB.

          This seems to be a rather rare TV so there is not much prior on topic help to be found however a service manual is available at the usual sources (Electro Tanya i.e.).

          I think the PSU buzzing comes from one of the coils near the bridge rectifier but...
          01-19-2024, 05:46 PM
        • x_orange90_x
          TCL 50S535 bad tcon or panel issue?
          by x_orange90_x
          Just bought this for 10 bucks yesterday hoping to fix it. The guy said water dropped inside from a dehumidifier hose and it started showing black and white vertical bars then went blank. When I got it home and turned it on it came on fine and displayed correctly but I was noticing faint vertical bars in the image. After a little bit I turned it off and back on and it was a black screen again. I opened it up to check for water damage and corrosion but didn't find anything of the sort. I cleaned the ribbons anyway and reconnected them but still got a blank screen. If I disconnect the right side...
          03-29-2025, 11:02 PM
        • advant
          Driving a Sharp TCON/panel with a universal main board
          by advant
          This thread is about trying to get an Universal Main Board to work with a Sharp TCON and panel.

          I have a Sharp LC-46D85UN TV that has had a main board issue. Since this model is from 2009, I am not able to find an exact replacement of the main board. Instead, I decided to see if I can future proof this tv by getting a Universal Main Board (T53U21.2) from China to work with the Sharp TCON (CPWBX4291TPZA) and panel. The universal main board supports a 8 bit dual channel LVDS interface whereas the TCON requires a 10 bit dual channel LVDS input. I have modded the LVDS connector to match...
          02-03-2020, 12:25 AM
        • Christos Tsiligiannis
          Marian Trace Alpha sound card repair help
          by Christos Tsiligiannis
          Hello to the forum.

          My name is Christos, I am new to the forum here and i am posting from Greece.

          So i have this old German sound card from Marian, called Trace Alpha. To be exact i have 2 of them and i use them professionally for my small FM radio station here. The first one works like a charm, but the second one does not work at all.

          To be more specific in the same exact pc with windows 7 (i even tried 32bit) the one works while the other doesn't.

          So i tried asking for a schematic from the company and they would not give me one. Instead they...
          11-18-2024, 05:26 AM
        • Loading...
        • No more items.
        Working...