I have a LG 42P744 plasma TV that has developed lines of blue and red running vertically down the screen. These lines are there on the main menus as well as across the picture any one have any pointers as to where too look for the problem
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Re: LG Plasma 42P744 vertical lines
Maybe the problem is inside the TV? Not much help, is it?
Well, that's about the best I can do with the information you gave. If you had spent a few minutes with a camera, then attached a picture, I could give a more definitive answer.
This problem is due to either the logic control card, the X buffers, or the plasma panel itself. If the pattern is in a repeating pattern it's most likely the logic control card. If there is no pattern it's the buffers or the panel. Since the buffers are usually bonded to the conductive tape, either of the last two causes is unrepairable.
Pictures help us help you.
PlainBillFor 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. -
Re: LG Plasma 42P744 vertical lines
Thanks for the reply
Apologies but I only have a very basic knowledge of these things if its not a simple part replacement I was hoping to get a replacement board or if I can narrow it down have it looked at by a friend who is much better at this stuff
The pattern on the screen is constant in all inputs although it has flickering pixels within the lines on the screen
Can you tell me what connections go in / out too the logic control card to help me identify it and I will strip the card out and photograph it back and font properly and post themComment
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Re: LG Plasma 42P744 vertical lines
The logic control board is behind the main board. The main board is the board with the input connectors.
PlainBillFor 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
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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... -
This is my 2nd broken TV I'm trying to fix and haven't been able to figure out... currently going without any working TVs so am hoping to be able to fix one..
This Samsung PN50B430P2D Plasma has this big block of vertical lines which will fade in shortly after turning the TV on. The lines will sometimes flicker a bit or fade in/out and sometimes it just stays present. The length of time it takes them to appear varies, sometimes its a few minutes and other times it appears immediately after powering on.
I have attached an image of the TV with these bars displaying.... -
First. it has no picture at all. i solved it by covering the ckv lines using tape to to block the connections
Second. now has picture but with vertical lines that follow the image. tcon board ic overheating
tried blocking LC lines too, but same results
is it lcd panel issue or tcon board issue?... -
Friend of mine has a Samsung Plasma panel with some vertical lines that are starting to form on the screen.....Ive never worked on a plasma panel, so Im not sure what to look for, would this typically be a main board issue, or something else?
Any help would be appreciated.....Please let me know....... -
Hello,
i order a t-con because i had bad colors on my SONY KDL-40V3000 :
With the new t-con the color are good but there are vertical lines on all the screen :
I've tried the old t-con and it returned to the initial issue (bad colors but no vertical lines)
Is there a way to fix the vertical lines on the new t-con ?
Thank you for your help
gpo23...
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