Question about JVC AV-20020 20" TV

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The picture in my tv doesn't come out but he audio

The picture in my tv doesn't come out but the audio is great. A horizontal line will come out with occasional peaking of the picture. Sometimes the picture comes on fully after awhile, sometimes it doesn't. Is it just a picture tube problem? When the picture comes out, it's still great.

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It is a flyback issue and this would need to be replaced around $95 bucks for this model depending where you live.

Hope this helps!

Posted on Jul 18, 2009

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Posted on Jan 02, 2017

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TV has a great picture but wont "hold it". Keeps going to a single flat horizontal line across the middle of the screen. Tapping on side of TV used to bring it back but now, nothing. Just a line.


Vertical scan output section circuit fault. Absence of vertical scan causes the single horizontal line on screen. Horizontal scan output section is OK. Contact any service technician to troubleshoot the vertical scan output section circuit. If you wish to get some details; check the site linked here. Pull up older posts.Surf the site with patience.http://electronicshelponline.blogspot.com/
Horizontal line fault to CRT based TVs are given.

Oct 06, 2014 | Televison & Video

2 Answers

No picture, Horizontal line center of screen


Can be a case of vertical collapse. If this is the case, then the vertical oscillator and/or the vertical driver circuit are faulty. .

You can take you problem directly to zenith. They have a customer service post available here

Mar 30, 2008 | Zenith Z32H41D TV

1 Answer

5 year old panasonic viera LCD works great until tonight, screen turned into vertical and horizontal rainbows, can see vague picture behind all the lines like looking through thin black horizontal venetian...


make sure your speaker to your sheron sound isnt to close to it .also if dvd player is the source then move away from tv will demagnatize the tv theres a magnet in them

Jul 05, 2011 | Panasonic Viera TH-42PZ80U Plasma TV

1 Answer

Green horizontal line in center of screen.


Bad vertical output ic. Also, check resistors and diodes around vertical output ic.

Mar 23, 2009 | Sony KP-46V35 TV

1 Answer

Green lines


Due to vertical section failure horizontal line apprears. You did not mention about picture. Green horizontal line means with picture or without picture. With picture means there is some leakage. Without picture only singe horizontal line means vertical section totally not working. Particularly green horizontal line means maybe leads to jungle ic failure. Please mention your simptom clearly what you get and what you will not get both video and audio. It will be helpful to answer. Based on your question this is my small information.

May 24, 2008 | Sony KV-35S42 35" TV

1 Answer

Sharp 27G-S60


it is cery simple as it folds after an hoyr or so. as you are asking for the section where the problem is located so is in horizontal oscilattor section.(possible cause cap.might be defective.) as per ckt diagram is concerned is concern please seeweb site www.serviceinfo.com hope this will help

Sep 30, 2007 | Sharp 27C-240 27" TV

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