Panasonic tx-42x20b

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Mr_Bodgit
    Member
    • Dec 2010
    • 47
    • doncaster

    #1

    Panasonic tx-42x20b

    Hi guys
    Just fixed this tv using another thread (no 15v supplying the 5v/3.3v) 10 flashesh of red led (sos)
    So I bridged the 0 ohm link/fuse that popped due to kids stiffing things into the sd card slot just to see if it turned on (tv was free so no loss if it damaged owt)

    Problem now is the screen has a stripe of red green and blue lines up it 1/8th of the way in from the right, 1/8th of the screen thick, it relates to the second connector on the buffer card (if I unplug it the lines get really dotty and scrambled but go back to RGB lines when reconnected, if I remove a different connector along the board I get a differerent 1/8th showing random dotty interference,

    Found a buffer card on eBay for £4 but wanted to check it's not a buggered screen first? Anyone know if it's the card or screen?

    Regards
    Richard
  • Mr_Bodgit
    Member
    • Dec 2010
    • 47
    • doncaster

    #2
    Re: Panasonic tx-42x20b

    No one know?

    Comment

    • sordids999
      Badcaps Legend
      • May 2013
      • 2149
      • uk

      #3
      Re: Panasonic tx-42x20b

      maybe a picture of the fault would help and hang fire some one who has a good knowledge with panasonics will reply when there free

      Comment

      Related Topics

      Collapse

      • Stanley1843
        Screen Display Vertical Multicolor Lines
        by Stanley1843
        Hello, I have a screen in where sometimes when I open it pop-up vertical multicolor lines (I would say the most of them are green). If I tun off and turn on the screen the lines dissapear or if I leave open the screen after approximately five minutes the lines gone. I measured the below voltages on the main PCB and on the T-CON board and the voltages are the same when it doesn’t display the vertical lines and when it displays the vertical lines. Also, I cleaned all the connectors very good with IPA. I moved back and forth the connectors and the COF tabs but the vertical lines didn't displayed...
        06-29-2024, 11:54 AM
      • jeyoung12
        Samsung QN50Q60t lines on screen
        by jeyoung12
        Hi all
        I have lines on the screen...which is an age old problem that can be remedied by watching Youtube videos and getting out the tape.
        My issue (after successfully fixing a different sammy tv with a separate tcon board and isolating the side of the panel...):

        This tv has an integrated tcon...so it is a bit more confusing when trying to isolate the clocks.
        It has a c ribbon and i have taken each end out to see if that will isolate the lines. instead, it makes it much worse ALL over the tv!

        So....i don't know what end of the C ribbon to work with...
        02-26-2024, 10:38 AM
      • Ryan.man
        Macbook 2017 with touchbar (A1706) won't turn on after removing the screen
        by Ryan.man
        Hello everybody! Posting this in hopes somebody has some expertise that leads to a clear path of troubleshooting that saves me a lot of time!

        My macbook has the flex cable problem, the one that prevents the screen turning on. Ive been dealing with this for the last 3 years. Last year it went dead and I managed to fix it following youtube tutorials. But my fix wasnt the best, the problem returned a month later. This week, it went dead again. I again tried to fix it.

        This time the original cable broke too close to the screen, it can't be fixed without tearing the screen...
        02-04-2025, 12:23 PM
      • howardc64
        A1312 (27” iMac 2009-2011) A1407 (Thunderbolt Display) A1316 (Cinema Display) Display Black Screen Repair
        by howardc64
        Problem

        This is an LG edge LED lit LCD Display. The LEDs are on the bottom edge of the display. There are 2 bars (left and right) Each bar has many LEDs and a 6 pin connector. Each pin drive several LEDs thus is the highest current flow / heat junction. The weak lead free solder gradually fails with thermal expansion/contraction cycling and increases resistance. PSU will compensate up to a point, then when the current is too high, PSU just shut down the backlight causing a dark display. I have even seen one which the connector just fell off as solder points became completely detached....
        08-04-2024, 10:36 PM
      • kdaniel
        Hitachi 58HK6100U - Horizontal Lines (Bottom third of the screen)
        by kdaniel
        As stated by the person I collected the TV from, it just stopped working overnight. However, I still gave it a go to try and repair it.

        There is a thread on the same TV but with slightly different issues where they had to tape connection points on the ribbon cable, so I want to see if this is repairable by any chance.

        After bringing it home and plugging it in, the TV turned on with its backlight working but had no picture. After removing the back cover, the first thing I tried is to unplug one of the ribbon cables and the situation is as follows.

        Left...
        11-16-2022, 09:23 AM
      • Loading...
      • No more items.
      Working...