Question about Televison & Video
Dear Support, From recently a white horizontal line/bar appear on the top of the screen when I freshly turn up the TV. It dissapears as the TV "heats" up, and everything is normal. I chceck the capacitors on the suppy line, they are not blown up, and I measured up 2-3 od them, they seem to be OK.
The vertical scan output stage is faulty. Check and replace damaged component/s in the vertical output circuit. Visit the site named 'Electro-help' for more details. Click this link. View it in "Timeslide" or "Flipcard" option, which can be selected from the drop down box menu by the [Sidebar] tag, at the top left corner of the display window. You can also click the [Home] tab to the latest updates. It will make search easy. There are more than 1350 posts to different brand TVs now. Pull up older posts there.
Posted on Nov 28, 2012
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Posted on Jan 02, 2017
intermintence in vertical IC deflection its a job for experienced tech need to look for that circuit and do fine job resolding that IC
Posted on Apr 01, 2008
You have whats called a verticle swep falure. Its probably just the verticle output IC but if you dont know much about soldering or circuit troubleshooting ,you should leave this to the pros. Theres way to much Hi voltage inside these sets to twiddle around inside them. Also there are no consumer serviceable parts inside these sets as well, as they are all solid state, and my advice is spend a few bucks and get a pro to do this job for ya, as it can, and will, kill ya if your not careful.. Is it worth saving a few bucks??? Naawww Call a pro.. Good Luck
Posted on Jun 13, 2006
SOURCE: Toshiba 36A50 Horizontal Line
Ok, The vertical Ic is IC301 Ta8427K And Capacitors around IC chroma 2.2 uf 50 volts. You will see small red capacitor ( with C302....4 or 5 ) reference. Replaced others capacitors on vertical section 220 uf 35 V or 100uf 35V. I hope this can help you. Or if do you have any picture chasis, send to me and I will show you where are the problem., Thank you
Posted on May 11, 2008
Your symptom sounds like a faulty capacitor in the vertical deflection circuit.
What you are seeing is called vertical fold-over.
If you want to fix this yourself and are handy with a soldering iron, it is not that difficult. Just look for a 1uf capacitor near the vertical IC. The vertical IC will be a black IC with straight legs mounted to a heat sink, generally in the center of the circuit board.
Note: Be careful when working on a television as the CRT and other capacitors can hold a charge that can be very dangerous.
I would recommend that you contact a local service center and see if you can get a quote for the repair. I would normally charge between $120.00-130.00 for this type of repair. The cost may vary depending on where you are located.
I hope this information allows you to resolve this issue.
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Posted on Aug 02, 2009
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