LG 42 Plasma TV 42PC3D No picture Yes sound

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Alastair E
    Chief Womble
    • Mar 2013
    • 1963
    • U.K.

    #21
    Re: LG 42 Plasma TV 42PC3D No picture Yes sound

    I think the one discussed here is an X3....

    Works brilliantly for the fix on the X3. There's a couple of different F/W versions for that one, I tend to always use the latest dated...
    --There's one version,--the earliest I think--that changes the red-spots--to Green spots, although a lot less of 'em!

    Its the 'PDP 42 X3####' number thats needed to match the F/W....
    Last edited by Alastair E; 03-20-2015, 06:24 AM.
    TELEFIX

    How PLASMA SCREENS WORK, X-SUS and Y-SUS what they do--
    http://www.irf.com/technical-info/appnotes/an-1088.pdf
    PLEASE DO NOT EMAIL ME PRIVATELY FOR REPAIR ADVICE. QUESTIONS BELONG ON THE FORUM!

    Comment

    • bikerbuddy
      Senior Member
      • Jun 2011
      • 134
      • USA

      #22
      Re: LG 42 Plasma TV 42PC3D No picture Yes sound

      I have just finished working on LG 42pc3D set
      and had some red sparkles , First off I have fixed a similar set about a year ago and it ran excellent for about 5 months, then a few black bars start to show up upon carefully inspecting the the ribbon cable that goes to the panel I notice that the chip on the ribbon was scorched, so i picked up another pC3d on craigs list which had a bad power board and bad Yboard swapped the parts over from the old set with the vertical bar to the newset , power up the new set and let it run for about an hour .
      then I noticed some red sparkles on the screen was visible on all channels, so I turn the ramp down pot onY board and almost all the sparkles disappeared Pic attached is what screen look like now .
      Attached Files

      Comment

      Related Topics

      Collapse

      • KYBOSH
        Hitachi 55HDS69 55" Plasma TV - No Picture But Sound
        by KYBOSH
        Picked up a bahemoth plasma TV not too long ago and just now getting around to looking at it.
        No picture but you hear the TV static (white noise) playing loud and clear.
        The back was already taken off (and no screws were provided) as the previous owner had already taken a look.
        But it seems they didn't get too far and just left it.

        When I first took a look I was amazed at how pristine the inside looked.
        Its as if the TV had been in a time capsule.
        Caps looked like they were just pulled off the self.
        Copper coils had no sign of corrosion on...
        02-01-2023, 11:10 PM
      • 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
      • Ierwin
        Samsung UE60KU6079 backlight okay mainboard responsive, no picture, no sound
        by Ierwin
        Hello everyone,
        Ive got a UE60KU6079 on the workbench that is giving me some headaches trying to troubleshoot.
        The previous owner stated that there had been white dots on the screen which from the description sounded like some lenses fell of the backlight LEDs.
        He had opened the TV from the back, trying to get to the backlight, supposedly gave up, reassebled everything and gave the TV to me.
        I expected the worst like ripped COF cables or a cracked panel but could not find anything like that yet.
        Anyway I still fully expect that there has been something seriously damaged...
        05-13-2025, 03:31 PM
      • jchang
        Samsung UN70NU6900F no picture and no sound
        by jchang
        Hi all

        I was just given a Samsung TV with the issue. I read various threads and videos and attempted the ribbon tape method to gain an image, but no luck.



        Symptom:
        No picture no sound.
        When I plug in the power cord, Backlight LED turns on for a half second and then turns off. The red LED next to the power button located center bottom flashes 2 or 3 times. When the power button is pressed after, it does the same thing.
        No sound at all.



        What I tried:
        1. I tried unplugging the left or right ribbon...
        01-09-2023, 06:28 PM
      • Loading...
      • No more items.
      Working...