Question about Toshiba 27AF43 27" TV

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Horizontal lines When I watch cable TV there are aboubt 8 horizontal lines at the top of the screen . The lines are white and pick up any color that is in the video image ( eg if the top of picture is of blue sky the lines will be blue). The remainder of the screen is OK - No lines. I have a digital PVR cable terminal. My PS2 and my videos / DVDs do not produce the same lines on the video. This system was working fine for about 8 months prior to this happening.

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Re: Horizontal lines

It is due to electrolytic capacitor failure in vertical output section.

just get it replaced.

it very very common & minor problem.

good luck.

Posted on Oct 17, 2007

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Sony FD Trinitron WEGA KV27FS100 horizontal lines across top part of screen

Check and replace all electrolytic capacitors in the vertical output section circuit. There will be 5 or 6 of them to replace. Replace all at one time. The fault you describes here is technically known as 'vertical retrace lines'. Visit the site named 'Electro-help' for more details. Click this link. View it in 'Flip card' option, which can be selected from the drop down box menu by the [Sidebar] tag, at the top left corner of the display window. It will make search easy. There are more than 990 posts to different brand TVs now. Sometimes, you might get some more details from there.

Oct 13, 2012 | Sony FD Trinitron WEGA KV-27FS100 27" TV

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We have a 27" MTS Stereo color TV. There are white horizontal lines at the top of the screen. We do have a DVR with Direct TV. How do we fix?

U can't.Only horizontal lines on the top parts of the tv screen or the lower parts of the picture screen.Or very light horizontal lines mix in with the tv screen pictures.The "CRT" the picture tube is slowly dying of old age.Quicker than they supose to.The late 90" these problems case show up alot more in standard tvs using CRT tube.Because the CRT and analog design about to be faze out of the market place.The glass molding and those radiation matrials,they used to make those "CRT" picture tube materials,not as good as before.

Aug 03, 2010 | Sansui Standard (CRT) Televisions

1 Answer

Tv screen is black except for 1 horizontal line of color

The line is there because the vertical deflection unit - the one that spreads that line across the entire screen to form the image - has failed. Replacing it is a job for a professional, or at least an experienced amateur, and the parts will be quite difficult to find for such an old tv . 

May 28, 2010 | Panasonic CT-36DV60 36" TV

3 Answers

My 15 year old Toshiba Televisiononly shows a narrow horizontal band in the middle of the screen. Sound OK.

Hiii fairley,

You aren't specsificly dercribe yor tv set.
For common TV horizontal problem ;i.e : White line accross the horizontal screen, horizontal band,'s can solved by replacing the IC Vertical/Transistor, and olso to replace the cap nearest the IC.

For common TV Vertical Problem :i.e : White line at the center of the screen (top to bottom),Vertical band,etc...It's can cure by Replacing the Horizontal IC/Transistor,and offcurse the cap's.

Tha's what all I know....

Hope can help you to solved the problem.



Jun 22, 2009 | Toshiba 32A33 32" TV

1 Answer

Thin white horizontal lines across top of TV

replace vertical out put ic and related capacitors
please refer to a qualified tv personal to check tv

Jan 17, 2009 | Standard (CRT) Televisions

1 Answer

My Siny Trinitron G21M1 is producing horizontal lines across the screen

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.

Oct 26, 2008 | Sony Standard (CRT) Televisions

1 Answer

Horizontal ines---original post got wiped. Sorry.

leaky cap(s) in vertical circuit. shouldn't be more than $125 (plus taxes) parts and labour

May 14, 2008 | JVC AV-27230 27" TV

1 Answer

Poor picture quality

You need to consider the following tips herein as follow:

1) Field collapse (horizontal white line on screen)
R710 dry joints. Same as C2146TN & C2546TN problem solved with thanks to Mike G & Barty. Power off/unplug. Get to circuit board underside with aerial socket up-R710 is near top and right of centre-cluster of 4 joints best resoldered
2) Picture is horizontally narrowed and deformed
Capacitor C2913 (390nF, 250V) on the deflector PCB had lost capacity

Please let me know any update

Nov 29, 2007 | Toshiba 27AF42 27" TV

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White horizontal line down middle of TV screen

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.

Sep 20, 2007 | Mitsubishi CS-35505 35" TV

2 Answers

Horizontal white lines on top of screen

try to adjust the screen control in the flyback transformer. good luck

May 04, 2007 | Panasonic CT-27G14 27" TV

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