Question about JVC AV-35750 35" TV

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TV has bright horizontal line

My tv turned off an on continously. I replaced a condensor C901 and now it stays on with a black screen and a bright white horizontal line. I replaced condensor C421 and have resoldered the vertical IC. I have sound and can run channels. Can some one help?

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Re: TV has bright horizontal line

Do some voltage checking on the ic and make sure that volages are reaching there, about 32 volts. if it is reaching, then you can change the ic there. but before you do that, check around that ic and make sure everything is ok there. good luck

Posted on Apr 08, 2007

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At first it was lots of horizontal lines over the screen, and later TV screen went completely black. The sound still is perfect. Perhaps I just need to replace the fuse? I love this TV! Thanks...

You have stated that your TV has a lot of horizontal lines before it went off picture. We say that lines as retrace lines. So many of them will there on the entire screen, at about one inch or so apart, horizontaly scattered along with picuture. At that time, you may be unable to down the brightness control also. Even though you have reduced the brightness control to zero position, there will be some brightness level on the screen. You should have to repair that fault at the begining. There is a voltage going to the picture tube base, known as screen voltage. That voltage determine the emission of the picture tube, and we call it a bias voltage. When it goes higher than normal, this trouble ie retrace lines will occur. In long run it may spoil the picture tube itself. I don't know what the case of yours.
Anyway it is best for you to consult an experience technician in this case. Ok.

Nov 05, 2010 | Sony KV-35V35 TV

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Black screen with bright horizontal line through center

Your vertical IC may need resolder. You may have a bad capacitor or two that created an extra warm IC and create bad grounds. So resolder and check those caps near and around your vertical IC. If you continue to see this horizontal line you may have to replace the vertical IC. And you may as well check all grounds as well. Good Luck and be careful!

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1 Answer

Rca 32 inch tv

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.

time to buy a new tv

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3 Answers

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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

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1 Answer

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try to replace all filter capacitor on vertical section area that can solve your problem. 

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1 Answer

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caution whenever you see horizontal line please reduce brightness of your tv for safety of crt. your problem in vertical section only mostly due to loose contact in connector,print or loose components.

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1 Answer

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The quick horizontal line through the center of the screen usually denotes a failure in the vertical output circuit, and that would keep the set from staying on. You would have to take it to a repair shop for repair.

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1 Answer

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Is good that you hit it and it reacts,very likely you have loose conections in different places but for the distorted picture you need to check the horizontal driver transformer and flyback after that is corrected you need to check the complete chassis for loose conections.Take your time.Good luck.

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