Haas HK65US311 65" tv

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • Bholu
    Member
    • Feb 2024
    • 48
    • Saudi Arabia
    #1

    Haas HK65US311 65" tv

    Today I got a 65" TV from Hass company. It was not showing any picture. I taped the 6 lines of the Tcon FFC cable on the faulty side of the shade and the picture came but the display on the side where I blocked the pins was not showing properly. I checked the volts on the VGH point and -3.5 volts was abnormal, there should be about 28 to 30 volts on this point! There were +30 volts on the VGH point on the Tcon. I put a jumper on the source PCB from the Tcon side and saw, the raster started appearing on the display. I also tried soldering the 6 blocked pins but the picture did not come properly. If any master has any information about this, please help me.
    Attached Files
    Tags: None
    • Davi.p
      Hobbist Tech
      • Sep 2009
      • 4326
      • Italy - Milan
      #2
      Sounds to me no sense, why jumpering the vgh might have a change on screen? it's about unlikely that an interruption can happen from tcon to panel strip board, unless someone other put hands before you.. remove the jumper and check continuity in the vgh path, where it stops, to be true i saw a video from "vcore llc" or similar.. where this happened but tcon was not separated, anyway if you find interruption it is likely dirt that is also in others traces/pins..
      check all others signals.

        Comment

        Previous template Next

        Related Topics

        Collapse
        • 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
        • Hakuu
          LG OLED77G1PUA - No Video / Audio after a TCON Board change and Software Update
          by Hakuu
          Hi There,

          This TV was auto switching off after few seconds with some vertical lines on the screen, so got a new TCON board and replaced it.

          After replacing the TCON board it was working fine and i set it up with everything, used for few hours, then had the bright idea to update the software on it. During the update process, TV switched off and now no audio or video. No relay switch sound.

          More Details

          TV Model - LG OLED77G1PUA

          Got the same exact TCON board from TVPartsToday and replaced it. But didnt transfer the EPPROM data (didnt...
          07-12-2023, 02:37 PM
        • Daren87
          Sony 8K XBR-75Z8H White Screen Vertical Bars Tcon Code. Help Needed🙏
          by Daren87
          Hello everyone,

          I've recently been given a Sony 8k Z8H. It's got a white screen with two vertical black bars. At times it's given me the 5 blink Tcon code. Testing voltage on the Tcon I can see some low or missing voltage. I've done a basic visual check of cables and the COF. Not seeing anything obvious. The original Tcon seemed to have good caps until turning it over. On the bottom I found maybe 10 caps with both sides of the caps shorting to ground. I thought ok these caps and likely other components on the Tcon are shorted so let's try a replacement Tcon. I just received the...
          08-13-2023, 03:25 PM
        • alltvrepairs
          Lg TCon test pins for screen test
          by alltvrepairs
          Hi,
          i have a 65 Panasonic TX-65HX710E using vestel 17MB170 main and Lg tcon.

          Few drops of water fell probably near COF and have no display. Tried removing tabs but no.part of display present as if tcon fuse open. However 12v is present and tcon can be felt warm enough that supplies are present. Backlight and sound ok.

          Anyone knows if this TCon 6870c-0805A has any special test pins for rgb test?

          Appreciate your help....
          2 Photos
          06-13-2025, 06:33 AM
        • Loading...
        • No more items.
        Working...