42LG20-UM LCD TV washed out picture

Collapse
X
Collapse
 
  • Page of 2
  • Time
  • Show
Clear All
new posts
Previous 1 2 template Next
  • Markus1
    Senior Member
    • Jul 2013
    • 80
    • Australia
    #21
    Re: 42LG20-UM LCD TV washed out picture

    Just to report final outcome.
    Yes, you were right. The chip was the source of the problem.
    I did get the new chip, but not having a proper tool (heat gun station) and not much experience for such an operation, I only caused damage to some of the pads. Definitely need more practice on those SMD chips replacements.

    In the end I have ordered a new T-Con board (about USD25 from Hong Kong), put it back and the TV works fine.

    Thank you to all of you for guidance.

      Comment

      Previous 1 2 template Next

      Related Topics

      Collapse
      • mecha1166
        Un70nu6900 taped lvds, how to fix washed out 1/2 picture?
        by mecha1166
        I am getting these 70 inch Samsungs daily. Dead set light comes on goes off, dark screen. Tried taping the problem lvds cable pins 13 to ? pin, used about 9 mm scotch tape. Picture comes on, no distortion lines, looks good, but 1/2 of screen is washed out. Problem seems to always be the last little strip on the bottom. Has anyone found what is actually the problem? Possibly one of three diodes there? I have a pic but it is washed out on 1/2. Anyony had success in fully restoring the picture? Thanks.
        1 Photo
        07-03-2024, 05:03 PM
      • Tr0ll
        T-con suspect issue. Both ribbon cables no picture. One ribbon cable ok. (58pus8545)
        by Tr0ll
        Hi guys! I realized you have a lot of knowledge here so i am hoping you could point me in right direction with my odd issue.

        The Tv is a Philips 58PUS8545/12, it had no picture but working backlights.

        Original T-con:
        Opened the Tv and tested to unplug one ribbon cable at a time. With this test i could see that i got fine picture on both halves as long as there was only one ribbon cable connected, with two connected picture were gone.

        First replacement T-con:

        I thought it might be t-con and ordered new t-con from china(supposedly tested)...
        10-07-2023, 07:48 PM
      • JJAAMM
        SAMSUNG UN55KS9000F picture fades then distorts into vertical lines after 20 seconds
        by JJAAMM
        This was my main TV for the last 6 years. I'm not inclined to throw out a $2600 TV so quickly so I'm trying to investigate the issue.

        Problem
        TV was disconnected from power for 6 months during construction. When I plugged it yesterday picture was fine, after 30 seconds it dimmed then started developing horizontal lines, picture then starts to ghost vertically until it degrades into vertical streaks. TV always displays a perfect picture when cold. I can unplug TV for 5 minutes and plug it back in and picture is restored for 20 seconds. I can also keep it in standby mode...
        07-06-2023, 06:01 AM
      • TR103
        Samsung TV model UE50TU: rebooting, backlight, sound, but no picture
        by TR103
        Hi, I have a Samsung UE50TU with:
        - sound and backlight, but no picture
        - when it arrived, it had a picture for a few seconds
        - it keeps rebooting
        - without ribbon cable between the two panel boards, it does not reboot but I have no picture
        - without cable between mainboard and lcd panel, it does not reboot (but obviously i have no picture)
        - when i try a tape fix, its keeps rebooting, unless I tape off pin 1 (the innermost pin). In that case it does not reboot but I have no picture.

        - without cable between mainboard and lcd panel and with a jumpered...
        01-22-2025, 04:12 PM
      • Mgiffune
        Samsung UN60EH6000F Black Screen, Backlight and Sound Good. Power Cycle Returns Picture
        by Mgiffune
        I have a 60 inch Samsung UN60EH6000F flatscreen TV. The screen went black a few months ago Sound is good, backlight is good, no menu. I replaced the TCon board with a used board purchased from Ebay. It worked fine for a 3-4 months, then the screen started ‘fading' back. Once again, sound is good, backlight is good, no menu. However, this time the picture looks fine for about 10-15 minutes, then fades back. If I power cycle the TV, the display reappears, for another 10-15 minutes, then fades black again. Repeatable ever time.

        I ordered a supposedly ‘new' Tcon board this time, and        ...
        06-09-2024, 10:28 AM
      • Loading...
      • No more items.
      Working...