Question about Sony FD Trinitron WEGA KV-30HS420 30" TV

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Color intermittent Red gun drops out

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2 Answers

Samsung 42 inch LCD TV has lost the red gun.


There is no red gun, one of several boards is possible for no red, welcome to TV repair in 2012.

Someone will need a schematic, signal generator, scope, voltmeter and skill to trace it .

Apr 08, 2012 | Televison & Video

1 Answer

Red gun goes off and loose red color. Once and a while it will come back on. suspect a cold solder joint


Quite possibly but it could be intermittant heaters in the red tube. Check when faulty!

Dec 31, 2010 | Hitachi 51F500 51" Rear Projection...

1 Answer

The colour of our sony tinitron color tv model no.kv-xf21m83 has got fading (Red colour disappeared )and the indicator flashes red a number of times between 3 second intervals and the est is sparking


hi
this sounds as if the tube (crt) as a intermittant short in the red gun , try tapping the neck of the tube very softly with a screw driver handle, this just might just clear the fault
regards windyhouse

Apr 23, 2010 | Sony FD Trinitron WEGA KV-32FS120 32" TV

1 Answer

MY MONITER CHANGES COLOR AND ITS PISSING ME OFF HOW CAN I DO IT. IT ALWAYS CHANGES COLOR MOST OF THE TIME IT CHANGES TO RED COLOR


One or two of your color guns are failing. On a CRT, there are three color guns, Red, Green, Blue. They work together to produce all colors in the spectrum. If the monitor goes all one color, it generally means at least one color gun is failing. The cost to repair far exceeds the value of the monitor or the price of a new LCD panel.

Mar 11, 2010 | HP Pavilion MX70 17" CRT Monitor

1 Answer

No red color in my Hitachi TV


there are three guns that produce color
red blue yellow they make the spectrum which includes black if one of the guns burn out you loose that color if the gun is good then the color board that controls that color is bad

Feb 26, 2010 | Televison & Video

1 Answer

I need wiring color code for 97 Ford Expedition


red/yellow leads from the 5amp fuse #29 and red/white leads from 5amp fuse #2. Both of these run into the instrument panel. Let me know if you need more info.

Jan 25, 2010 | 1997 Ford Expedition

2 Answers

No Red color at all. The convergence feature does not work either. Lots of green and blue RCA Model D52W59


Red color gun has failed, which will make the picture over saturated with the other two colors(blue,green) the bad news is the three color guns need to be replace in a set(all at the same time) because if you only replace the red it will over saturate the older blue, green guns then your picture will be mostly red.Unfortunently in most cases it's not worth the investment, better off to purchase a new tv. Good luck !

Nov 28, 2009 | RCA D52W20 52" Rear Projection HDTV-Ready...

1 Answer

17 yr. old 35" RCA loses color intermittently. Picture & sound ok


Three guns Red Blue and Green in the picture tube of an old CRT set. If one of the guns goes out it effects that color. Sounds like one of the guns inside of the tube is going out, To costly to replace for such an old antilog set that will have to have a convertor box next month anyway.

Jan 12, 2009 | RCA 15L500TD 15 in. TV/DVD Combo

1 Answer

Guns on their last leg- color fading


If you are asking about Guns in rear projection tv then answer is No.
Rear projection TV has 3 Guns (CRTs), red-green and blue and each gun has its unique color phosphorus coating to produce its mono color (red /green /blue) and these are not interchangeable.
Need further info, let me know.

Oct 23, 2008 | Televison & Video

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