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Toshiba 32d46 single horizontal line in center of tube

12 months old - just off warranty Single horizontal line in center of tube. Sometimes normal picture for minutes or hours then horizontal line for minutes. Have it open need more detail to troubleshoot circuit board.

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Re: Toshiba 32d46 single horizontal line in center of...

Hi. Check the frame output IC for dry solder joints.

Posted on Sep 16, 2007

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Toshiba TV picture has become single horizontal line in middle

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.



Jul 22, 2010 | Toshiba 27AF43 27" 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

My CRT TV displays a single horizontal white line across the screen. It will flicker and try to display the picture. If you smack it you'll get a quick picture then back to a line. After about 10-15...

The single line means that the vertical deflection doesn't work. And since it is working when you kick the tv or has warmed it's clearly a bad connection - open the case and reseat the wires going to the tube coil.

Dec 21, 2009 | Toshiba 32A33 32" TV

1 Answer

Horizontal line problem

The capacitor in horizontal section is popped and it needs replacement. Check the horizontal section capacitors and change the faulty capacitor.

Nov 21, 2009 | Toshiba 32D46 32" TV

1 Answer

No picture.Just a single line in middle of screen.

No, your picture tube is fine. This is a problem in the vertical circuit that deflects the beam up and down. This repair is fairly typical across most television brands and should not cost too much to fix. I don't want to quote another shops pricing but from us this would run about $150.00 to fix.

Oct 07, 2009 | Toshiba CF36G40 36" TV

1 Answer

Single green line spanning across the screen horizontally

I was just watching TV and all of a sudden the screen minimized down to a single green line spanning across the screen horizontally. The label in the back says it was made in 1996 so it is an old tv. Can anyone help?

Apr 08, 2009 | Mitsubishi CS-27205 TV

1 Answer

No picture


You have defective Vertical output IC. This parts need to replaced to back to normal.


Dec 04, 2008 | Symphonic ST420FF 20" TV

1 Answer

Panasonic CT-32G6E Intermittent single horizontal line

I would suggest to locate a part that looks like the one on this link and re solder all the pins, also check for any high power resistor nearby the IC295890 and put some fresh solder.
Let me know if you need further assistance.

Aug 07, 2008 | Panasonic CT-32G6 32" TV

3 Answers

Screen only showing single line of video in center.

hi there, is the single line horizontally or vertically? if horizontal line, you do have a vertical section problem, check some parts at vertical section, the vertical ic, the power source of vertical section ie diode & resistors. ty

Dec 26, 2007 | Zenith Z32X31D 32" TV

1 Answer

JVC 27" CRT TV AV-27BP3 display shows single horizontal line

I have a similar problem on my CRT computer monitor (AcerView 76c). It is an old screen and I think it is just at the end of its life, much like your TV. Having some background in physics, I would be pretty sure that the problem is with the cathode ray tube's vertical deflection system. The horizontal deflection electrodes are working while the vertical one is not. This results in a display of a single horizontal line (or in my case, a few superimposed) in the centre of the screen. Where both X and Y (horizontal and vertical) deflectors fail then the electron gun firing would result in a single bright spot in the dead-centre of the screen.

So really, we have no choice but to move on and buy a new set as repair is probably just as, if not more, expensive than replacement with a new device. Seeing as your post was in 2007, I hope you managed to solve the problem.

Best wishes,
SZ (Sydney, AUS)

Dec 24, 2007 | Standard (CRT) Televisions

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