Question about Sony FD Trinitron WEGA KV-21CL10 21" TV

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Trouble only one line vertical

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Re: trouble

The best and first thing is reduse brightness to avoid crt demage 1 check circuit between horl output to yoke horihontal winding 2 check h yoke connection 3 boost capacitor generally low value &high voltage

Posted on Sep 09, 2007

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Vertical line on tv screen

This problem have been answered.

Aug 22, 2012 | RCA TruFlat 27F520T 27" TV

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The tv has a black screen with a white horizontal line accros the screen. From where you connect you coax cable, I used to have to wiggle the cable to get video, i currently have audio but only the while...

Your problem is not in the tuner. Since you have a sound but horizontal line only and when you bump the unit the video comes out, this is only indicated that you have a dry joints in the vertical section. Re-soldering the cold solder on that area will cure the problem. Dry joints is hard to spot so you need to work with a good source of light. Vertical IC is located near the FBT and secured with the heat sink.
Hope it may help you.
Have a nice day.
Thanks for using fixya.

Jan 31, 2011 | JVC AV-27950 27" TV

1 Answer

I am repairing a television TCL2009 the trouble is one line vertical.What is the trouble of the TV.

If it has a vertical line (running from top to bottom) you have a horizontal circuit malfunction. Most likely a loose solder joint in the drive to the yoke. You have high voltage but no horizontal deflection. Thanks

Oct 21, 2009 | Standard (CRT) Televisions

2 Answers

Philips TV (old) showing a horizontal line in center of screen

Check for the cracked solder joints on the IC or dried capacitors on the vertical side

Mar 28, 2009 | Standard (CRT) Televisions

1 Answer

Lighted line in center of tv

the trouble of your tv is not a picture's in vertical section,so check the supply of vertical IC if its ok ,re solder the ic.

Sep 30, 2008 | Emerson EWF2004 20" TV

1 Answer

Toshiba 32A14 horizontal line

This symptom is characterized by a thin horizontal line in the middle of the screen. This symptom is caused by the absence of the deflection sawtooth current in the horizontal deflection coil.
The trouble is easily isolated by a continuity test and by checking the most likely defective components such as A)open vertical linearity compensation transformer, B) open capacitor and C) open horizontal deflection coil.
Be sure to decrease the brightness first before trouble-shooting if the line is very bright,as it burn the phosphor screen..

Hope this may help;



Aug 19, 2008 | Toshiba 32A33 32" TV

1 Answer

Toshiba 27

you just say horizontal lines / and across a top of your television.I expect your trouble is the vertical line of your television . sound ok? try trouble the vertical section the check the resistor?

Apr 19, 2008 | Standard (CRT) Televisions

1 Answer

Tv trouble

Sorry, I can't help you with the computer password issue but I can help you with the TV.

The problem you are having is a vertical deflection problem. The screen is being compressed to a thin white line. It's probably a defective vertical output module or transistor. This part is not too expensive. Less likely would be a vertical deflection coil, which would be more expensive because its usually glued to the picture tube and harder to replace. You'll need to take your set to service center to have it serviced.

Good Luck!

- Jim

Feb 08, 2008 | Toshiba 36A61 36" 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

2 Answers

Sharp 25" tv unknown model (no av in)

It is a simple trouble, tv has got dry solder joints in the vertical deflection circuit. Resolder vertical output ic pins and related components, this will be okay.

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