Grunding 40 VLE 6142 video problem

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • StromarMiki
    Member
    • Oct 2021
    • 25
    • Slovenija

    #1

    Grunding 40 VLE 6142 video problem

    Hi guys, i have a problem with screen, lvds signal not correct and change LQF6041TOB-Q1, but problem it same. Does anyone know where the problem is. The voltages on the t con are fine. See pictures.
    Attached Files
  • dskall
    Badcaps Legend
    • Oct 2016
    • 2905
    • usa

    #2
    Re: Grunding 40 VLE 6142 video problem

    So what are you getting when you disconnect each side of panel?
    I assume no responsibility for any stupid suggestions I might post.

    Comment

    • StromarMiki
      Member
      • Oct 2021
      • 25
      • Slovenija

      #3
      Re: Grunding 40 VLE 6142 video problem

      Originally posted by dskall
      So what are you getting when you disconnect each side of panel?
      I can not. T con is on the screen.
      Attached Files

      Comment

      • dskall
        Badcaps Legend
        • Oct 2016
        • 2905
        • usa

        #4
        Re: Grunding 40 VLE 6142 video problem

        Well that sucks.
        I assume no responsibility for any stupid suggestions I might post.

        Comment

        • dskall
          Badcaps Legend
          • Oct 2016
          • 2905
          • usa

          #5
          Re: Grunding 40 VLE 6142 video problem

          You sure your voltages are good? VGL?
          I assume no responsibility for any stupid suggestions I might post.

          Comment

          • StromarMiki
            Member
            • Oct 2021
            • 25
            • Slovenija

            #6
            Re: Grunding 40 VLE 6142 video problem

            Originally posted by dskall
            You sure your voltages are good? VGL?
            Yes, VGH 30V and VGL -7,5V, problem to screen i think.

            Comment

            • dskall
              Badcaps Legend
              • Oct 2016
              • 2905
              • usa

              #7
              Re: Grunding 40 VLE 6142 video problem

              There are several other voltages that need to be there.
              I assume no responsibility for any stupid suggestions I might post.

              Comment

              • StromarMiki
                Member
                • Oct 2021
                • 25
                • Slovenija

                #8
                Re: Grunding 40 VLE 6142 video problem

                Originally posted by dskall
                There are several other voltages that need to be there.
                At all measuring points which are marked the voltage is correct. I can't find the wiring diagram for t con Grunding 40 VLE 6142 C.

                Comment

                • dskall
                  Badcaps Legend
                  • Oct 2016
                  • 2905
                  • usa

                  #9
                  Re: Grunding 40 VLE 6142 video problem

                  Only other suggestion is make sure you have those voltages on the tabs on side of screen.
                  I assume no responsibility for any stupid suggestions I might post.

                  Comment

                  • StromarMiki
                    Member
                    • Oct 2021
                    • 25
                    • Slovenija

                    #10
                    Re: Grunding 40 VLE 6142 video problem

                    Originally posted by dskall
                    Only other suggestion is make sure you have those voltages on the tabs on side of screen.
                    Did you think to check the voltage on cof.
                    Attached Files

                    Comment

                    Related Topics

                    Collapse

                    • alro7779
                      Samsung UN55MU6103F video problem; has colored stripes on the display
                      by alro7779
                      Hello, everyone!

                      A co-worker gave me a 55-inch Samsung TV model UN55MU6103F so I can try to fix the following problem... As soon as I plug it in to the wall, the TV turns on, and the display shows a few stripes all over the screen. I took off the back cover and disconnected both ribbon cables that go to the display (one at a time) so by doing that I can narrow down the bad section of the problem, but in both cases the display turns black. I know there are some voltages that I have to check (VGH, VGL, etc.) but don't know what reading each has to show. If anyone could guide me on this,...
                      09-27-2025, 11:29 PM
                    • Spikeman
                      Help on Video Problem on Dell Inspiron 7459
                      by Spikeman
                      Hi, I'll tell you the story of this PC.
                      The PC was repaired because it had a shorted power supply. What happened was that the plastic covering the buffer battery positioned by the manufacturer on the capacitor melted, thus generating a short.
                      After the repair, the PC worked, I installed Windows 11 and I may have had some problems with the video drivers, but after a bit of tinkering I think I solved them.
                      However, the PC later presented the problem in the video shared very frequently.

                      The problem also occurs at startup, in the bios and when using it as a monitor thanks...
                      02-27-2024, 10:17 AM
                    • Gibon378
                      Problem with stopping audio and video for no reason
                      by Gibon378
                      PC Specs:
                      • CPU: Ryzen 5 1600
                      • GPU: GTX 1080 Palit JetStream
                      • MOBO: ASRock ab350 PRO4
                      • RAM: Crucial Ballistix Sport 2x8GB 3000MHz (XMP 2.0)
                      • PSU: XFX 650W (don't remember what model)
                      • OS SSD: ADATA SP920
                      • OS: Windows 10 21H2


                      Problem description:
                      Hi. I have a problem that has been going on for some time (2-3 years). It's hard to explain what it really is. Sometimes, my computer stops playing music, stops videos (starts buffering on youtube), there is no sound in games and when I minimize the game window and return to the game there is a black screen with window borders...
                      11-19-2022, 09:41 AM
                    • zimeyh
                      Problem video A1502
                      by zimeyh
                      Hi guys! I have a problem with macbook pro A1502. This display have a apple video, when launch desktop, this display is off. A connect thunderbolt a monitor, have video and laptop and monitor. Disconnect thunder video power off. Whats problem? 🤦🏻*♂️ thankss
                      11-15-2023, 03:19 AM
                    • hugocarmo
                      Grundig GV-250 Repair problem. (Video inside post)
                      by hugocarmo
                      Hi everyone.
                      I have the following problem.
                      I have a Grundig GV-250 VCR which has not been used for over 10 years. When I turned it on, the fuse of the PSU burned out, after being replaced it burned again, I ended up verifying that I had the bridge rectifier and the mosfet in short, I ended up replacing it, and I replaced all the electrolytics of the PSU. However, it started to behave strangely, as I will show you in the video that I will attach as a link.
                      In short, I ended up replacing all the ICs on the power supply CNY17G, TDA4605, TL431, TDA8137, TL082CP, AN3824K, L2720,...
                      01-19-2023, 06:46 AM
                    • Loading...
                    • No more items.
                    Working...