Question about Televison & Video

Vertical black lines on my Thomson 42" Plasma

Hi, I Have a problem with vertical black lines appearing on my screen, when i turn the screen on it generally takes about 30mins before they appear, sometimes its one sometimes 2 & very rarely 3, if i leave the tv on, again normally it drops back to just the 1 line after a short period of time (if i'm really lucky they all go away), the lines are roughly an inch thick and keep changing places!! Any suggestions would be much appriciated! P.S: was reading a thread on AVForum and people having the same problem with a Hyundai model said it was a dry joint problem & could be fixed by a little soldering, could it be the same problem?

5 more comments
Smallsq14 Jan 07, 2008

I have a Marantz PD-5020D Plasma monitor with a vircle black line at about the middle of the device running about 3/4 of the way down the screen. This happens on all sources, but looks nothing like a burn-in. Any ideas????
scuffer Jan 23, 2008

Hi,

I have been looking all day for a thomson web site,as i have a black vertical line down the side of my plasma tv of which i have had 3 years and the

insurance has expired by 3 months,like yours it just appears when it feels like it.

julie
ash_s Feb 11, 2008

Hello, I have a 32" Emerson and I also have these mysterious black lines. It started as one thin blue line, that gradually turned dark. Over the past couple weeks many new lines have appeared, each a different color, all in a cluster by the first line. When I first turn on the TV, they are all really dark, but after the TV "warms up" a little, they go away, sometimes completely.

There is no warranty or anything on the TV, that was the catch for buying it (we got it for a VERY good deal...) It didn't break my bank to buy it, I just want to know wtf is going on with my television. Thanks in advance for anyone's input...
Anonymous Feb 26, 2008

i also have the lines on my screen...but also i have a line at the top that loops down showing about 1/2" picture above it
Anonymous Mar 20, 2008

If anyone had this problem repair. Please email me at [email protected] I have 2 vertical black line on my Sony PFM-42v1plasma.

Thanks,
stuart8862 Apr 11, 2008

Hi

Same problem Thomson 42" plasma with 2 x 1" vertical black lines down. One normally comes and goes, but the other seems to be there all the time now. Can anyone help me please call me if you can 07725 760069. Thanks
caroline11 Jan 02, 2009

I have a 2 year old 32" Funai which has the same problem. After the TV warmed up the lines used to disappear but are now gradually becoming worst and are there all the time. Any ideas on solving would be appreciated.

Thanks in advance

Caroline

6 Answers

dragonuk

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IF YOU HAVE A SOLID BLACK LINE RUNNING VERTICALLY THEN YOU HAVE A FAULTY MATRIX INVERTER. IF CENTRAL THE MAIN VERTICAL INVERTER NEEDS CHANGED. LEFT = LEFT VERTICAL INVERTER RIGHT=RIGHT.........

ANOTHER WAY TO GET THIS FAULT IS WORN OR DAMAGED RIBBON/PLASTIC GOING FROM THE SCREEN MATRIX TO THE INVERTER

Posted on Feb 14, 2008

inigomontoya

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I had a similar problem on a panasonic unit. It turned out to be a ribbon cable just above the affected area that had become loose during shipping. A tech came out and reseated it and it has been fine ever since.

Posted on May 01, 2008

Anonymous

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Very likely same problem. I have a Hitachi that was up to 5 of those annoying lines. Found the AVForum thread and took it apart. (Figured might as well try!) Anyway, soldering and fixed...No more lines!

Posted on Oct 16, 2007

Anonymous

X driver cables 10 ohm resistors have loose connections

Posted on Apr 17, 2008

Anonymous

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2 Answers

I had the same problem with my LG. It turned out that 2 PCB's needed to be replaced inside. It was an easy repair for thoes who know their way around electronics. It was the "Control Board" assembly, however your TV SHOULD be calibrated after the replacement of these PCB's. I have been unable to find a service manual to do the calibration myself and do not have the expensive equipment to do the calibration so I would suggest calling a certified calibration shop to do this part of the repair.

Posted on Mar 06, 2008

Anonymous

Yes, could be fixed by a little soldering but you need some electronic skills and cautions. remember that tv sets always remain charged with mortal voltages even after switched off.

Posted on Jan 14, 2008

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