I am getting a vertical black bar on my Daewoo Plasma screen which comes and goes.
We have a 46" LG plasma, with vertical lines in a variety of colors: red, blue, orange, green, you name it. We have 3 lines on the right and 1 on the left. Please help!
YES YOU HAVE DRY JOINTS UNPLUG FROM POWER SUPPLY REMOVE THE BACK/ INSIDE YOU SHOULD SEE AT THE BOTTOM SEVERAL RIBENED CONECTORS FROM THE SCREEN ITSELF? UNDERNEATH YOU SHOULD BE ABLE TO SEE 2 OR 4 COMPONENTS CAREFULLY APPLY A HOT SOLDERING IRON AN SOLDER THE ONE THAT YOU ARE HAVEING PROBLEMS YOU SHOULD NOW HAVE FULL PICKTURE AGAINE ANY PROBS email me email@example.com
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You could have a Driver Board that has a loose connection or a Ribbon Cable that has a intermittent connection to the Plasma Panel, or a defective Plasma Panel. Either one could cause the problem and I would recommend only a Qualified Service Person to check it out.
Here is LG's Customer Service Number. 1800-243-0000. They could direct you to a Local Service Facility.
I hope this helps,
Bad connection somewhere along the bottom or top of the panel, there are boards most likely along the bottom of the screen that control vertical drawing, a connection that breaks as it is heated up sounds about right. check the connectors along the bottom. Be very careful because if you wreck em the screen is junk. The connector that will be at fault will be in direct line with the black bar.
The main problem of this model is VPB (video process board) and the reason is they build in it SMD capacitors and they are always crap.First thing that you guys should do is to replace them all but not with SMDs,get a normal capacitors same values.And of course replace all capacitos on PSU.Parts are cheap to buy about 30euros,work on the PSU is easy,only the VPB is tricky but it can be done.It only takes time but belive me don't even think of board replacament its cheeper to by a new set