Black and white line on screen

You have an "Up Scaling" problem and a new screen will sort that out.

Definately a damaged screen, no way to fix it for less than the cost of a replacement screen sorry.

it is broken screen, if you have garanty (Warranty) call to service or shop. If you have no garanty call to service, but screen costs to much.

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.

You could try removing the ribbon cable directly under where the lines are from the X module and clean the cable and reinsert it. You could have a bad X Module if cleaning doesn't fix it.
Let me know if this helps.

I'm not an expert, but I have determined that the vertical bars that are often red, sometimes blue ... and sometimes both ... are related to a bad control board. I've also read that a common fix is to buy a repair kit with includes the ysus, zsus and control boards ... all replaced together. My experience was that after a month or two with the 1.5" wide stripes, that you eventually loose the entire picture and have sound only. MIne comes back, but won't stay working for very long and the stripes are always there (buy used to fade and flicker sometimes). I'm planning on replacing the control board.

If the TV cost to much to repair, would you be willing to sell it for parts? My front glass screen has got a chip in it. Cant see paying 500 just to have a new one installed.
Thanks

Hi there

This problem can only be fixed properly by replacing the Mainboard.

check you bulb and your color wheel notorious on this set

check this out http://www.techlore.com/forum/thread/12629/