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lines on a plasma tv can be cause by a few different things. One of your buffers might be bad. The logic board might be bad. Or your tv screen coldu be bad. The only way to find out is by replacing the boards or the screen.
this is a frame fault
the fact that you can still see the line when the tv is off is because you have been watching with the line and it has burnt into the crt.
vertical output ic needs to be resoldered. careful leaving that bright line displayed on the screen as this will cause a permanent phosphor burn into the tube. this can not be corrected once burned unless you replace the tube. mch
Hi, I hope your TV model is Sony KV-G21M1 and you see color bars as horizontal lines across the screen. Let me now are you tech guy or know how to repair TV to guide you further.
A line on an LCD, either horizontal or vertical usually means the video driver board is defective or the screen is defective, does it show up as black even on a dark screen? That means a line of LCD "shutter"s is not working and there is a problem that cant be fixed by a reboot or channel change. Bummer.
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