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The picture is only producing the basic colours red green and blue

The television will only produce colurs of blue red and green. Also there is a strange pattern appearing in the picture, sort of like a maltese cross along the length and breadth of the screen(in the red green and blue) my t.v is only showing the colours of green, red and blue on the screen. How can i fix it?

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Hey i have fixed the problem. Please follow the following steps:
- Remove cable line and join again. (This will bring single channel mode)
- Press mute button once it works.. Your TV is in normal mode.

Posted on Oct 21, 2014

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You can start with the make, model and age off the back of
the TV..........................T.

Posted on Dec 24, 2007

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Posted on Jan 02, 2017

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The picture turns green for a few seconds then goes back to normal


Hi. If it's not a picturetube (internal) fault, you may look for bad soldering joints on the printed circuit board, located at the tube.
This contains mostly the RGB amplifiers. A bad soldering on the one driving the "green" cathode, may cause such problems. It can easily be detected by gently knocking on the latter. Also look at the actual CRT socket solderings.
It is most unlikely that the fault is located in the colour decoder. Faults there mostly influence red and blue. In a PAL system, only red and blue are transmitted. Green is produced by a matrix.
Finally, in the worst case there is an internal fault in the picture tube itself. Usually, the discolouring is very bright, shows retrace lines across, and even makes the system shut down due to excessive beam-current. good luck.

Apr 13, 2014 | ESA ET427E 27" TV

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SONY TRINITRON ONE COLOUR PREDOMINANT SCREEN


Sony Trinitron sets are of CRT [Caothde Ray Tube] types. The common fault seen in these type of TVs are any one colour predominant on screen wih sound OK. Either red, blue or green colour with some thin horizontal lines at about an inch apart will be seen on the entire screen. This is totally a display card problem, which can be seen pluged onto the picutre tube neck. There are three electron guns for every picture tube, which emits red, blue, and green beams, which in turn illuminates the phosphor on the screen to get that colour. If no emission from all guns, results in a blank screen, ie black screen without any disply at all. The three colour beams together produces proper coloured picture what we see on screen. These three gun's terminals are brought out by pins of the picture tube outside to which video signals are given in appropriate proportion to produce a TV picture. Normally, all these three pins are biased with a voltage of about 170 to160VDC+ve. Take one colour gun, as an example and and let me describe the problem.
Let it be a green gun. These guns are called cathodes of the picture tube. If it gets a voltage with respect to its grid, it will emit electrons according to the voltage applied to it. This is a negative process, that is, as the voltage at this pin drops, its emisson incresses and vice versa. If the emission increase, the colour with respect to that gun also will increase and gets predominant at the screen. So when we see a green predominant screen, there will be less voltage at the green cathode with resepect to the other two. If red colour is predominant, the voltage at red cathode will be less than the other two. If blue colour is predominat, the voltage at the blue cathode will be less than the other two.
We must find out the reason for this fault first. Assume that your Tv has a red predominant screen with some thin lines across it, at about one inch apart of the entire screen, it is clear that the the red cathode voltage is very lower than the other two. the main reason for this fault, normally seen in most of the Sony Trinitron, are loose soldering points either to the picture tube base socket or the resistor connected between the red drive transistor's collector point. Resoldering the most of these points on the base card by applying a little more solder will rectify this probelm. Other possibility is shorted video output transistor of that cathode. A direct short [collector to emitter] of these transistors will drop volatge to very low at that respective cathode of the picture tube, and that colour will be pridominant along with lines. Replacing the transistor will solve the problem. In some cases, the resistor connected to that transistor may have blown out. If so, it should alo be replaced. Whatever the case may be, voltage at the respective cathode that emits colour will be very low with respect to the other two. Find out the reason and rectify it. You can compare the voltages of the other two cathodes with respect to the faulty colur cathode. Cathode pins will be marked on the base card, and can be identified. It is best to pull out the base card from the picture tube neck and place it somewhere a safe place without shorting it with other parts of the TV. You can measure the voltages of these points very easly, without fearing the damge to the picture tube. After all are found Ok, replug the base card and switch on the TV. The set will be alright. In rare cases, chroma IC also can be a reason for this fault. if it is faulty, after a short period after switch on the TV, the IC will overheat and shutdown the entire system.

on Mar 21, 2011 | Televison & Video

1 Answer

My monitor resolution colour is changed to pink.


Check the data-cable between the computer and the monitor, and try a different cable.

Or, try connecting the monitor to a different computer, to see if the video-card in your computer is not working correctly.
If necessary, replace the video-card.

Colours on your monitor are produced by "mixing" the 3 "primary" colours: red/green/blue in various proportions.

Or, if part of the monitor that produces one of those 3 primary colours has stopped working, then the resulting "mix" will have too much RED/PINK. Fix/replace the monitor.

May 29, 2010 | SAMTRON 55V 15" CRT Monitor

1 Answer

Everything is green the screen the pictuers the letters etc.what`s wrong i have a windows vista /acer


If you have a desktop computer, try connecting a different monitor, to see if your monitor is not producing all three "primary" colours (Red/Green/Blue), thus resulting in "mostly-green" colouring.

If you have a laptop-computer, trying connecting an external monitor, to see if you get the correct colours on the external monitor.

May 17, 2010 | Microsoft Windows Vista Home Basic Edition...

1 Answer

The color on the screen is green when I watch movies. How do I fix this problem?


Good day sir, your inquiry about the green lcd screen can be caused by several things. 1. The monitor/tv produces 3 colors, red green and blue, the tv mixes these three colors to produce the picture. a loss of red and blue produces this green screen. so check the cable, specially the red and blue jack of the component inputs, and the red and blue cable. 2. there may be loose contact on the signal cable. try using the video input instead of the component input. 3. the dvd player may have the problem, check the player component out jack. a loose jack port can cause these problem. hope this may help. thanks

Jul 20, 2009 | Toshiba 32AV502U 31.5 in. LCD HDTV

1 Answer

My Rimage 2000I is producing DVDs with with poor quality red & blue colurs. There is streaky aspect in these colours, yellow looks OK. My test disk has bands of red, blue & yellow. I have changed...


First question is how old the printer is, The second is how many times have you cleaned the cartridges? In the process of cleaning there is a well that recieves the old and dried ink. This well needs to be serviced by a tech and cleaned.Make sure when you clean the ribbons you do not go across the colors, you want to go in line with the colors and use denatured alcohol don't use rubbing alcohol as this contains 60% water. Be mucho blessed... Mark

Jun 27, 2008 | Office Equipment & Supplies

1 Answer

Jvc lt-32c50bj


The green,blue,red hd plugs are for video only. you'll never get sound to produce out of a video line. audio comes from left and right which usually is white and red. it's always marked above or below the jack input.


C-Dog

Feb 10, 2008 | Televison & Video

1 Answer

Color going


your colour guns (that's what they call the light tubes that produce the 3 main colours, red/green/blue) need to be fixed. One or two of your guns need to have the liquid that protects the lens flushed out. I had the same thing and the repair man came in took the unit apart and removed one of my light guns (blue one) and showed me the dis-coloured liquid. He drained the liquid and added new clear liquid which protects the heating of the gun and everything was perfect again.

Oct 17, 2007 | Samsung PCL541R 54" Rear Projection...

1 Answer

The picture is only producing the basic colours red green and blue


Can you post a picture of the Tv with the issue stated?

Feb 28, 2007 | JVC AV-24F703 24" TV

1 Answer

Problem in Screen display


Hi, J ! You didn't say how old you set is, but to me it sounds like you may have a warped shadow mask in you picture tube. A shadow mask could be compared to a piece of screen wire. It's function is to make the electron "beams" from the three electron guns strike the proper phosphor dot to produce the proper color- red-green-or blue. If this is the case the picture tube would requie replacement. Stargazer

Jan 09, 2007 | Sony KV-21CT1 21" TV

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