Half the screen flashes black and ablack line goes down left side of screen

SOURCE: Red line across top half of screen

Uh-Oh.. Sounds like the BGA RAM in the video circuit. (These units are Intel based and Core 2 duo if posted correct).. We can repair if you need help and its under warranty and sorry its not a home remedy situation..

ikenfixit.com

SOURCE: Black Lines

My Hitachi TV Flat screen 42 EDT 4 1A has a one inch black line from the top to the bottom of the
screen on the left side. What or how do I fix it. I did blow it out with a air compressor as suggested by a local repairman.

SOURCE: A black line is printing on the left side of the

Pull out the toner cartidge, lift the flap and look at the drum, it should be clean. you will have to buy a new cart to fix

SOURCE: line down middle of the screen-resolution is different on sides

Have a black running veritcal down the middle of my screen with a white bar on each side..almost looking like a white ribbon going down the middle of the screen. I can see through the white ribbon though

SOURCE: Vertical colored lines on left half of screen.

I had this problem on a 37" Viewsonic LCD. Pulled it apart and through a process of elimination, I traced the problem back to a small board with several flat white ribbon cables coming out of it. The board was near the top center of the screen and under a ton of other equipment requiring almost a total disassembly.

This small board was clean but I noticed one of the rubber standoffs had slipped down and was making contact with one of the outputs running to the LCD. It also happened to be the output running to the section of the screen with the problem.

I postulated that the sticky glue on the rubber standoff may have just enough conductivity to cause a problem. Moved it so that it was no longer touching anything electrical and then reassembled the TV.

Afterwards, I turned it on and was pleased to see the problem has gone away! If you're having the vertical line problem, then maybe this could be your problem too, especially if you have a Viewsonic since it could be a manufacturing defect.