Have had the crt for about 9 mos. the picture goes to a small horizontal line, just started, I turn it off then on again it goes back to reg. view, twice it's happened, but the second time I had to turn the tv off ...my other sister type tv, has a over lapping screen till it warms up....what is it with orion/sansui/ilo
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Re: Screen goes to a thin horizontal line
Horizontal IC is gone a replacment logic board will work, but trying to buy that for www.partstore.com might e out of budget you might want to look around ebay for parts or simply give up on the tv. You can try to have a new IC put in but it would cost you around $95 bucks and upwards.
You can get a nice LCD for under $300 bucks from walmart..
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This is a problem with the vertical circuit. If you can solder, you should be able to fix this. With teh unit unplugged, open up the back and locate the vetical IC. This should be a small flat IC attached to a heatsink with about 9-11 pins. It may be marked LA7837 or something similar. Try resoldering hte pins. If that fails to resolve the problem, replace the IC. I will look up your specific model and try to get more details.
Set starts, horizontal and vertical deflection work, HT ok, crt heaters ok, but no sound or picture
I turned the G2 voltage up and noticed a white screen with flyback
lines, frame ok. I detected two badly soldered double diode rectifiers
in the secondary part of the power supply ! I checked all other joints,
and everything was ok !! success
White horizontal line (no vertical deflection)
Check / replace R548, R549
Sound but no picture except for a couple of horizontal colour lines
Replaced the frame chip TDA8356, set now ok
sound like the screen control on the flyback is set just a little too high. the flyback has the red wire attached to the tube. the flyback has 2 small adjustable controls. if you look close enough 1 is marked focus & on is screen. turn the screen slightly to the left & look at your picture. the screen is like a master brightness & if it's up too high you will see what is called retrace lines.
There is a bad solder connection in the vertical sweep circuit. if you know how toi solder, go and find the vertical output IC and resolder that first.. but if you have no solid state electronic repair experience, please find a trained tech to assist you in this repair, as if you wait it may end up costing you double of what it would now, so haveit done ASAP. Good Luck
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