Question about Toshiba 27A34 27" TV

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Toshiba tv problem

After a recent power outage, my toshiba 27a43 has black, vertical lines down the sides of the screen and no color after about 30 seconds.

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This looks like a problem either with the powers supply to the video signal processor and with thr power supply to the horizontal section (lack of complete horizontal deflection. This was caused by the voltage and current spikes of the power coming back on rapidly. Now to fix this problem involves coming into contact with hazardous voltages, I would suggest that you not attempt this repair on your own if you do not have a background in electronics. Please take this set to a qualified electronics repair shop

Posted on Sep 20, 2007

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Posted on Jan 02, 2017

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1 Answer

Toshiba 32sl410u have 2 vertical lines on screen


Likely a shop repair but:

Either a bad board (main, or power or even a inverter board)

Worst case if Black line and thick would be the panel (screen unit) which would be fatal but is not likely if lines not black.

Apr 05, 2012 | Toshiba 32SL410U 32 LCD TV

1 Answer

Horizontal white lines across top of screen. About two inches from the top, some channels more pronounced than others but always there.


Check for dry electrolitic capacitors near the vertical Ic output maybe one of 50v to 100mf or 50v to 10mf

Jul 24, 2010 | Toshiba 27A43 27" TV

1 Answer

Horizontal white lines 27A43.


You have some bad capacitors. They are located very near and next to your vertical IC. I would guess you would have to replace maybe four of these! Thanks for asking!

Jun 12, 2010 | Toshiba 27A43 27" TV

2 Answers

Getting colored vertical lines on the right 1/3 of my 52" Toshiba LCD why? can it be fixed?


looks like the lcd panel is damaged contact the toshiba service on your area

May 04, 2010 | Toshiba REGZA 52RV530U LCD TV

1 Answer

Toshiba 27A40 has single colored line across enter


Vertical output has cracked soldering. Around $150 to fix.

May 01, 2010 | Toshiba 32A33 32" TV

2 Answers

Appears a black line vertically on the screen


hi all .ive had the same problem,a thick black line down screen.sometimes it flickers from top to bottom and other permantly in view.but i have solved it.forget your ic boards and taking apart tv.have you got either a ps3 or wii connected to tv.if so unplug power lead from socket and relocate in seperate socket.make sure the lead is completely free of any other leads and you might just find this works.i think the power lead creates some sort of frequency that the tv picks up .good luck hope it works

Dec 06, 2009 | Toshiba 32AV502R LCD TV

1 Answer

Black lines in tv


Most likely there are electrolytic capacitors in the power supply, video path, and scan amplifiers that are starting to fail from age. This is common in many of these sets. In consideration of the age of the set, this may not be worth having it serviced.

Jerry G.


Sep 24, 2009 | Toshiba 51H93 51" Rear Projection HDTV

2 Answers

Vertical black line down centre of screen


I have same problem. Toshiba 42' hl196 purchased 4/07 line appeared 1 year and 9 months researched on Toshiba thread. Bad LCD screen. Repair cost more than tv-have to replace lcd screen. I didn't get the extended warranty. If still under warranty get hold of toshiba. Lot of people having same problem. Should get aclass action lawsuit started selling defective LCD screens. Kathy in Cleveland,OH

Dec 15, 2008 | Toshiba REGZA 42WLG66 42 in. HD-Ready LCD...

1 Answer

Black screen with colorful line going horizontally through the middle of the screen


Problem in the vertical circuitry.
If you have the know-how, check for "cold-solder" joints around vertical i.c.
Also, bad electrolytic caps.
Voltages ok?
Resistor values ok?
Replace I.C.

Don't tell me the yoke wires were off or gnawed thru by a roach!

Aug 07, 2008 | Toshiba 32A33 32" TV

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