Question about HP PL4260N 42 in. Plasma HDTV
Called Curry's and they have diagnosed problem as PCB Board needs replacing so I guess we will do that as we are not techy people and don't have the confidence to start trying to do this ourselves. Let's hope it's not going to be too costly! Thanks for your help.
Posted on Oct 02, 2009
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Posted on Jan 02, 2017
SOURCE: Black line on Panasonic Plasma
All lasma an lcd ts have boards that control vertical and horizontal output to their respective areas. They are connected to the screen by ribbon cables. If one of these boards fails all together, has a failed chip, a bad connection, or a bad ground somewhere it will result in a black line in the area of that board. A bad ribbon cable connection on the bottom will result in a vertical black bar though the screen. Many times reseating the connection will fix it, if the ribbon cable has been nicked there could be a severed connection. They an sometimes be fixed, but it is a pain. An yes I have done it, but the bar is gone. The same will happen if the chip that outputs to that area opens. The connectors are the first place to look paying close attention to the cable, they are extremely delicate so great care must be taken if you decide to tinker with em, the usually have lift locks that release them, but it is very easy to wreck em. Good luck.
Posted on Dec 11, 2008
Fixed non moving lines usually means you have a problem in the panel display or t-con. If it is in warranty get it to a factory authorized service center. If not you can try to change the t-con and see if this fixes the problem, if not then it will be the panel it's self and will be cost prohibitive to repair.
Posted on Sep 01, 2009
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