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Symphonic TV got a harizontal line in middle of picture tube

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If line is across screen thats virtical circuit prob. need tech or up and down horiz circuit. need tech

Posted on Dec 02, 2008

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1 Answer

No picture, just black


No high voltage deffective harizontal output.Check and replace harizontal output.

Sep 17, 2011 | Sony FD Trinitron WEGA KV-32FS120 32" TV

1 Answer

My TV's video is out. A straight line goes horizontally along the screen. The sound is fine. It use to come and go, now it is gone for good. Does a tube need to be replace?


Hello.Theres a loose connection in your CRT board of your television.The problem is in vertical section maybe the vertical output IC is cold solder.Thats why harizontal lines appear in the screen of your TV.Your picture is good the problem is in the CRT board at the vertical section.

Jul 03, 2011 | Toshiba 27A45 27" TV

1 Answer

I have a Symphonic 32" Color TV the picture is red. I need a tv repairman person to come out and look at the TV.


the dives or guns are out of balance. either the blue and green circuits are weak or the red drive is maxed out. when picture tubes are getting old, this normally occurs.
another thought is that the tint is incorrect and saturated. what is the picture quality details?

Sep 21, 2009 | Symphonic ST419E TV

1 Answer

Only a thin line across center of tv


sorry but i think your picture tube went. maybe use warranty or get another one.

May 07, 2009 | Symphonic ST420FF 20" TV

1 Answer

No picture


Hi

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

Thanks1

Dec 04, 2008 | Symphonic ST420FF 20" TV

1 Answer

1993 tube 37" mitsubishi


It looks like the vertical amplifier IC401 is defective. If you have soldering/desoldering skills you can change this part yourself. Also you may have to change C471 (.01UF 50V).
Good Luck.

Feb 11, 2008 | Mitsubishi CS-35505 35" TV

1 Answer

Verticle hold transistor?


The vertical hold keeps a normal picture from rolling either up or down. You don't have a normal picture (raster) here.

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.

Good Luck!

- Jim

Jan 24, 2008 | Standard (CRT) Televisions

1 Answer

TV Picture Reduced to Line across the Middle


This is called field-collapse. Either

1. The problem lies in the vertical deflection voltage-doubler circuit. The usual fault is a single capacitor of 100uF/35V that has failed. It is normally connected to a rectifier diode right at the vertical IC. Replacing the capacitor usually gets it working perfectly again.

or

2. The vertical drive IC has failed.

If you are finicky around technical work, then a reputable local repair shop in your locality should do it quickly for you and charge only labour.

Jan 13, 2008 | Symphonic ST419E TV

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