TV (CRT) turns yellow? Read for info, please help!?

Question

It's a telefunken CRT tv, roughly 90cm.

Sometimes when turning on, it will be white, but other times it goes yellow. When left on for hours it will go white usually or after a few minutes even. having it on white and black static seems to make it go white faster.

Help please, I assume it's not a setting option.

Hitting/shaking/bashing/dropping TV doesn't fix it.

I have searched the internet and found nothing like it.

Please reply soon, thanks.

Image of TV

http://img530.imageshack.us/img530/7533/dsc05525smallbn8.jpg

Photo is very accurate, not bad color on the camera or anything, it genuinely looks like that.

Answer 1

It sounds like the RGB (red, green, blue) circuit board on the monitor is going bad.  If you don't want to pay to have it repaired, you might try taking off the monitor cover and trying to adjust the pot switches which is used to sync the color at the factory, but be careful not to get zapped.