Plasma ooops...

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • NxB
    Badcaps Legend
    • Feb 2009
    • 1595
    #1

    Plasma ooops...

    I got the LG plasma working and the image looked good. Unfortunately I wanted to adjust one of the voltage pots (black level) on the ysus without taking the back off.

    The screwdriver touched the case and the fuses went on both y and zsus.

    After replacing those and feeling mighty stupid I powered the screen on. At first it showed a really messed up image. It looked like windows in 8 bit color. Slowly the image faded away and now there is nothing. No OSD either.

    All the voltages are normal, the red LEDs light up on back, no protect mode. On the LVDS, one green led blinks and one stays lit. The rest only turn on at start-up.

    Any ideas.
    Tags: None
    • PlainBill
      Badcaps Legend
      • Feb 2009
      • 7034
      • USA
      #2
      Re: Plasma ooops...

      Originally posted by NxB
      I got the LG plasma working and the image looked good. Unfortunately I wanted to adjust one of the voltage pots (black level) on the ysus without taking the back off.

      The screwdriver touched the case and the fuses went on both y and zsus.

      After replacing those and feeling mighty stupid I powered the screen on. At first it showed a really messed up image. It looked like windows in 8 bit color. Slowly the image faded away and now there is nothing. No OSD either.

      All the voltages are normal, the red LEDs light up on back, no protect mode. On the LVDS, one green led blinks and one stays lit. The rest only turn on at start-up.

      Any ideas.
      Next time use a plastic 'diddle stick'.

      PlainBill
      For a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.

      Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.

        Comment

        • NxB
          Badcaps Legend
          • Feb 2009
          • 1595
          #3
          Re: Plasma ooops...

          Found a dead smd fuse on the video board. I fixed it but still no go. It is off a 2.5v regulator (which works). Would replacing the board fix this?

            Comment

            • Wizard
              Badcaps Legend
              • Mar 2008
              • 2296
              #4
              Re: Plasma ooops...

              OUCH.

              Always use a plastic tweaking tool.

              Cheers, Wizard

                Comment

                • NxB
                  Badcaps Legend
                  • Feb 2009
                  • 1595
                  #5
                  Re: Plasma ooops...

                  Ordered a new video board. Hope it works. It was only $30 bux. I got to use this screen for like 30 minutes before I adjusted it. What a downer.

                    Comment

                    • NxB
                      Badcaps Legend
                      • Feb 2009
                      • 1595
                      #6
                      Re: Plasma ooops...

                      The IC whose fuse blew was the LGDT4410 IEC.

                        Comment

                        Previous template Next

                        Related Topics

                        Collapse
                        • Document Archive
                          HP Elite Slice G2 + Image Load & Asset Tag Elite Slice i5-7500T Specification for Upgrade or Repair
                          by Document Archive
                          This specification for the HP Elite Slice G2 + Image Load & Asset Tag can be useful for upgrading or repairing a desktop PC that is not working. As a community we are working through our specifications to add valuable data like the Elite Slice G2 + Image Load & Asset Tag boardview and Elite Slice G2 + Image Load & Asset Tag schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please...
                          09-12-2024, 02:20 PM
                        • piershs
                          Toshiba plasma 50WP16 wierd double image fault
                          by piershs
                          My 2001 Toshiba 50WP16 50" plasma TV has, after 20 years of trouble-free service, developed a wierd fault in the last 14 days during normal viewing - with no loud bang or smoke or any other excitement.

                          Every 15-30 secs the right hand half of the image has a "glitch" for about 1 second before reverting to normal. The glitch has two forms and also depends on the aspect ratio setting (see photos):
                          • 16:9 either a) a visible seam between LHS and RHS of impage or b) LHS image duplicated on RHS (photos 16x9)
                          • 4x3 either a) no image on RHS or b) RHS image offset by 1/6th
                          ...
                          08-01-2020, 01:07 PM
                        • Delired73
                          TV LG 50PA4500 Plasma : bad image noisy
                          by Delired73
                          Hello everyone,

                          I have an issue and didn't find any solution by myself or on every forum about my LG plasma TV 50PA4500.

                          Originaly the TV stopped to work and didn't want to turn ON again.

                          After visual inspection, few transistors were broken, I tried to change them but some burned again, so I ordered on full new board. So, I changed the Yboard which was burned by a new one

                          It now turns ON and the image and sound are present. But the image is very noisy and only visible when the room is in the dark.

                          I check Vs and Va voltages...
                          04-04-2021, 09:13 AM
                        • Document Archive
                          HP ProBook 450 G6 + Image Load & Asset Tag Notebook 400 Specification for Upgrade or Repair
                          by Document Archive
                          This specification for the HP ProBook 450 G6 + Image Load & Asset Tag Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the 450 G6 + Image Load & Asset Tag boardview and 450 G6 + Image Load & Asset Tag schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we...
                          09-06-2024, 10:56 AM
                        • Document Archive
                          HP ProBook 430 G6 + Image Load, Asset Tag & Testntag Notebook 400 Specification for Upgrade or Repair
                          by Document Archive
                          This specification for the HP ProBook 430 G6 + Image Load, Asset Tag & Testntag Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the 430 G6 + Image Load, Asset Tag & Testntag boardview and 430 G6 + Image Load, Asset Tag & Testntag schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps...
                          09-06-2024, 10:56 AM
                        • Loading...
                        • No more items.
                        Working...