Question about Emerson TS1997 19" TV

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Hi I am using RCA TV model 20F512T.My tv shows green screen actually it is blue screen what can i do to change the screen.Plese guide me when the tv is on it shows green screen and MONO.

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The Repairguy just right, its actually 18k ohm, 1/2 watt on mine. If not mistaken its R10.


Posted on Oct 18, 2007

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Using a dmm check the resistors on the kine board. the small board on the back of the picture tube. you sould find an open resistor. if i remember correctly, if looking at the back it would be on the bottom of the board & about 180k ohm. if you have a difficult time finding it, look for the same type/color of parts on the small board to make comparrisons. between parts. you sould have 3 of most parts, one for each color. good luck.

Posted on Nov 20, 2006

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Need manual for RCA TV Model 20F512T

Aug 03, 2015 | RCA Standard (CRT) Televisions

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Red, green and blue colours diveded on my TV

ok well "tube" tellys as they are called use an electro magnet to keep the picture stable and colours correct its called gaussing now if you have a speaker or something magnetic nearby it will stuff up the colors but only normally producing colors like purple,green, or white
if you have colors across the screen (that aren't caused by magnetic force) then you need to take it to a repairer or decide wether or not to buy a new one this issue can turn out to be quite hard to fix and can be expensive the different colored electron guns may be burning or burnt out causing pale color or it could be as simple as a power transistor in the H.V supply has shorted out..and causing power issues to the tube.
hope this helps,ben

Aug 13, 2009 | RCA 20F512T 20" TV

1 Answer

Green picture only

The projection TV has 3 guns RED GREEN BLUE. In your case the red and the blue guns are gone. So you are getting the green color screen. You got to replace the picture tube.

Jul 25, 2009 | RCA TruFlat 27F520T 27" TV

1 Answer

Colours missing from tv

There are three color guns in a TV that make up the picture. Red, Green & Blue. It sounds like you have lost the green color gun.

You can get it rpeaired again, but your TV sounds like it is ready for TV heaven.

Jul 25, 2009 | RCA 20F512T 20" TV

1 Answer

The tv screen is green

This is usualy a bad picture tube. are there any bright lines running across the screen? It would be helpful if you could give the brand and model number

Mar 12, 2009 | RCA TruFlat 27F520T 27" TV

1 Answer

I have an RCA model 20F512T and the screen is tinted green

maybe you should check your picture settings from the menu button, it should be a "slider" from red to green, and your preference somewhere near the middle.

Jan 26, 2009 | RCA TruFlat 27F520T 27" TV

1 Answer


hello.... do you have any speakers near your television? what color is the circle your talking about? Do the green,pink colors are scattered all over the screen and specially on the corners?
If you have or had speakers near your tv? then do this try to get a magnet.a magnet on a speaker would do.what you have to do is to place the magnet near the screen of the tv approx. above the green,pink color (turn it on first).you will notice the that the color will react with the magnet try to pull it on the side you will notice that the green,pink color is moving on the same direction do it until its gone.NOTE make sure youll not scratch the screen me what happened. GOODLUCK

Jan 21, 2009 | RCA 20F512T 20" TV

1 Answer

Green picture

a green screen on power up with retrace lines. At shut down a point appears in the middle of the screen. Sounds like either a shorted G2 grid, or bad flyback. If a phospher flake has shorted the grid in the tube, you can sometimes have luck by using a megger set at 1000VDC, to burn away the short. This is usually caused by the line HV going too high causing the anti-UV protection to kick in so fit a dummy load 40W lamp instead to the line output to allow measurements to be made.

Oct 19, 2008 | RCA 20F512T 20" TV

1 Answer

RCA CTC203 no red colour

Did you change the resistor by yourself? I am not sure if your TV has manual adjust on the back of the TV that you can adjust. Some times turning the TV Off and unplug it from the wall helps because it resets the TV. Check your Back ground color and see what is the dominating color. Blue, Green or Red. If this doesn't work please call a professional to look at it.

Jun 18, 2007 | RCA F27649 27" TV

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