Question about Samsung TXN2771HF 27" TV

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Picture color - it is a blue and green picture- no other color- looks artificial


This happened once before - that the color of the picture was just blue and green - I did everything as per the manual changing the settings of color/contrast/brightness etc. Nothing worked. Finally I saw that at the end of the manual it was indicated that you could turn the TV off from the power socket and leave it off for half an hour. I left it disconnected for about an hour and things started to work. Now once again (2 months later), the picture color is blue/green only - and I disconnected the TV from the power socket and from the cable connection for a whole night - and the picture color is still the same artificial blue/green tones. Did everything as per the manual. No change. Any help/advice is welcome. TV is only 3 years old.
Many thanks everyone.

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Re: picture color - it is a blue and green picture- no...

Sound like coldsold... call your tv tech. for help

Posted on Dec 08, 2007

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What causes color to appear flouresent

Video output section circuit have the fault. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience.

Oct 15, 2014 | Sony FD Trinitron WEGA KV-32FS120 32" TV

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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

1 Answer

I dont have any red color on my toshiba color tv

hi you have to check the crt board, this small board is attached at the back of the picture tube. check for defective driver transistor, driver for color red which get shorted.

Feb 17, 2013 | Standard (CRT) Televisions

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Not able to get red tones on TV

the problem is at the crt base .there r three red,blue n green o/put.verify if there is dry in the soldering n check the red cathode voltage it must b around 150 .if not then check the resistor that feeds the red o/ could b 12 to 15k. all crt have 3 driver color red blue n green,whenever one driver not working the color changes.that wat happened to ur tv now i do not know wat model u have.the drivers may b transistors or now its ic that r being used like tda of luck

Jan 03, 2010 | Toshiba 27AF45 27" TV

1 Answer

Problem with tv picture

Smack it firmley on the side and see
if that cause it to happen or stop happening
if so you have bad solder in the vertical drive
it should look like an hour glass

Jun 23, 2009 | Standard (CRT) Televisions

1 Answer

Display color changed from green/ white now to Red and blue?

Hi and welcome to FixYa,

Your described problem is as you suspected, the green is missing. This is a common failure and is technically an easy/quick repair. Almost always, the culprit would be a cold solder or a faulty color drive transistor/IC. They would be located on the small squarish PCB (printed circuit board) at the very rear of the tube. Of course, worst case scenario would be a faulty CRT (picture tube), but that would be least likely.

Corrective measure would then be initially re-soldering above describe solder joints and/or replacing faulty transistor/IC.

Good luck and thank you for using FixYa.

Feb 21, 2009 | JVC AV-27530 27" TV

1 Answer


Have you tried disabling SVM (scan velocity modulation)? Often touted as a "feature" of TVs, it's a way of artificially making a picture appear sharp. Totally unnecessary. When SVM (sometimes called VM) is on, it can lead to some color bleeding around edges.

Mar 24, 2008 | Sony FD Trinitron WEGA KV-36HS20 36" TV

1 Answer

Zenith Dual receiver PIP 27 " standard "portable" TV color problems

from sympton it looks to me that you should go for new one.

Oct 05, 2007 | Standard (CRT) Televisions

1 Answer

Green wave-like color distortion over reds

do you happen to have any speakers of any size within about 3 feet in any direction of the tv?? move them if so, I have large speakers about 5 feet from my tv at home and i still get some distortion once in a while with red and dark green streaks.

Aug 15, 2007 | Sony WEGA KD-34XBR970 34" TV

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