Question about Toshiba 27AF43 27" TV

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Toshiba TV picture has become single horizontal line in middle

Toshiba Model 27AF43 TV picture has become single horizontal line in middle of screen. Unit still powers up okay.

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This problem is caused by a faulty ir of cap's . First is c408 on the board it is a 100uf @ 35v i replaced with same uf and @ 50v , Second is a 2.2uf @250v and is c410 on the board replace both and your off to the races.

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Posted on Dec 11, 2010

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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

1 Answer

My Toshiba 46XV540U LCD TV. Has ghost image plus many white vertical and horizontal line when it is turned on. These lines and the ghost image stay for 20 to 30 minutes and than the picture becomes clear....


Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish board that call T-CON board to do a replacement.This T-CON board sit in the middle at the bottom of the tv LCD screen panel.This T-CON board control all the picture pixels going throught to the tv LCD screen panel.

Jun 11, 2011 | Toshiba 46XV540U 46 in. LCD HDTV

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

1 Answer

Picture goes to a single horizontal line.


Your problem is due to failure of the vertical scanning circuits in your TV. This is quite common and is caused by aging components. Generally drying out capacitors
You got to be careful not to leave it on too long when the picture collapses, it will burn a permanent line across the screen.
If you are an electronics expert you can fix it if you get a schematic. If not please don't attempt to reapir it yourself since there is high voltage in side the TV.
The problem may get worse with time.

Mar 13, 2010 | Toshiba 32D46 32" TV

1 Answer

Toshiba 36A50 sound, light line horizonally on black screen


It is my guess that you have some intermitent solder connections in the Vertical output circuit.
Hope this helps,
Skyassoc

Jun 23, 2009 | Toshiba 36A40 36" TV

1 Answer

No picture no sound


Did you mean the picture is collapsed only in the middle horizontally(white line appears on the middle part of the screen)?
If that is the case, maybe vertical IC failed or loose connection.

Apr 05, 2009 | Toshiba CF32H40 32" TV

1 Answer

My screen become blank, one thin Horizontal bright line in middle of the screen appears


You have what we call 'frame collapse'. This has many causes and without fault finding, I cannot pin point the exact location of the faulty component.

Feb 13, 2018 | Toshiba MV20FM3 20 in. TV/VCR Combo

1 Answer

Toshiba 32A40 32" TV Problem


does any one can send me the schematic of TOSHIBA 32A40? I have a vertical problem and I need to locate the vertical IC or trancistor.
I only see a horizontal line on my Tv.

thanks.
teranco@hotmail.com

Jul 13, 2008 | Toshiba 32A40 32" TV

1 Answer

Horizontal line (with about an inch of picture)


check a capacitor on the horizontal section

Oct 28, 2007 | Toshiba 27AF43 27" TV

1 Answer

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.

Oct 17, 2007 | Toshiba 27AF43 27" TV

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