Question about RCA 20F511T TV

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1/2 of picture is ok; the other one only lines. What is?

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Resolder the yoke connections, bad solder where wires connect

Posted on Feb 28, 2009

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If it's the top half that's lines and the bottom is ok, it's a problem in the vertical deflection circuit. Probably a dried out electrolytic capacitor.

If it's left to right, that gets more complicated. Please provide more info.

Posted on Oct 02, 2008

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1 Answer

Lg sampurna reterace line on picture.boost suply ok


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/
One among the post there have details about the retrace lines to CRT based TVs.

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1 Answer

White lines on the screen.sounds ok.picture is coming behind white line.


Lines means Screen Drive is overdriving, try adjusting the Screen control on the FBT flyback Transfomer, adjust it down. If that does not Clear out Problem then replace the CRT Board that is connected to Picture Tube.

Jan 22, 2011 | Sony FD Trinitron WEGA KV-27FS100 27" TV

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My bush tv has an invert picture, top to bottom ok but the sides have came in, the picture is ok but smaller


check B+ line.Also capacitors and diodes around hor.output transistor.Defl.yoke to.

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1 Answer

Diagonals lines appears on screen and becomes more brighter


With HV variation the color will not be good. Sometimes I have heard that the screen resistor causes this.

Dec 29, 2009 | Konka K2568U 25" TV

2 Answers

Sharp Tv 25E-M50


WELL FIRST U HAVE TO SEE WHETEHR THE SUPPLY FOR VERTICAL SECTION IS OK.IF ITS OK THAN.CHECK FOR SOME DRY SOLDER AT VERTICAL SECTION.OR ANY LEAKAGE CONDENSER ,AT LAST REAPLACE THE IC VERTICAL.IT WILL BE OK'

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1 Answer

Picture fault


Hi.

 

What is picture like if you change screen size to 4-3  is this picture size ok & fault only shows in the wide screen formats.

Oct 10, 2007 | Standard (CRT) Televisions

1 Answer

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sound is ok means power supply is ok. as there is no picture there is a problem in video or luminance section. 1 check chroma ic supply 2 check signal line to video section 3 loose contact in video section 4 crt base loose 5 crt supply 6 no supply to g2 7loose contact in brighness line

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1 Answer

Faint horizontal lines in picture


This is usually caused by a problem in the Horizontal Output section, around the Horizontal Output transformer usually a capacitor or diode going or gone faulty... the line you see are the Horizontal "Retrace" lines that are useually "Hidden" when the circuit is OK..

Jul 30, 2007 | JVC AV-27320 27" TV

1 Answer

Tv showing blue screen with flyback lines sound ok


Flyback lines? Is the picture all white with no brightness control with faint horizontal faint lines? If this is what you are saying, the screen voltage could be bad, and if thats the case, the picture tube or the flyback itself could be bad. You could also have a bad connection on the crt socket

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