I have a horiz.line about 1/4" thick across my screen, it is in color and you can tell the picture is moving, sound works fine and you can change channels, in the past this has happened and a couple of whacks on the back and the picture would come back, the tv is five years old.
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Re: vertical output problem
You probably just need to resolder the vertical output IC. It will be mounted on a heat sinc. probably 7-10 pins. Part number may start with "LA" like LA7845 or similar, there are others though. You will probably see the rings around the solder joints on the bottom of the board. Good Luck
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You will need convergence work to this unit. Not cheap.(Not recommended for DIY unless already experienced in this type work). Might contact a local servicer experienced with Toshiba & see if they can give you a quote over the phone. Be sure you are sitting.
This is probably a good time to consider entering the 21st century & look at LCD or LED flat screens.
This could be from 2 things. 1 is the optical block is going bad or 2 you got a peice of dust blown in from the cooling fan and its blocking the color filter internally. If you are capable you can take the tv apart and blow compressed air into the color block and remove the dust. Hope this helps
Your Zen got bashed. or at least the screen suffered some violent movement and shifted on its moorings. To make it simple... all around the perimeter of the LCD screen, there are electrical contacts for HORIZ and VERT signals which come thru tiny ribbon cable (looks like copper colored ribbon but actually is flat mylar with wire laminations inside) anyway, these are either socketed, soldered or have pressure contacts which make the connection and give you colors in the right places. The connector for an entire HORIZ row came loose, got bent or broke. The only fix is to locate it and either resolder it (difficult without a 'needlepoint soldering iron), reshape that single contact so the right part of the display (HORIZ connection cable) touches its pad again, or replace the display,, socket, or its cabling. I have one with bad HDD but everything else is OK (Display too) which I can sell you cheap. All you'd have to do is pull your HDD, install it in my old Zen, and go.
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Mine looks like too, but the line running across isn't on my set, picture looks like this, and the sound works fine. I took the tuner board all the way out and turned the set on and it did the same thing, then I unplugged the top wire on the board next to the tuner board and the screen went black. plugged it back in and the screen came back with the scrambled picture. Anyone know why? Bad mainboard maybe? the left of the tuner board?
if the set has a previous vertical line problem and a white horizental line only comes in the cross of the screen and you turned the tv on for a time while the problem is solved that mean you have make a burnt line to the screen ,
but if you are the tv owner and nothing of that happens so you have a problem in faulty dried capaciter in the vertical live part search for 33uf 160 v or 22u 160 v and alter
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