Color problems. last night instantly the color

The TV will need to be properly diagnosed to be sure of the problem. A defective power supply output, main board, LVDS cable connection, t-con board or t-con/LCD ribbon connection can cause video display issues.

I don't understand FUBR.
The problem sounds like the A1 voltage has gone low value giving poor video.
Check the HV controls. BE CAREFUL!!!!!

Horizontal deflection problem, most likely caused by bad solder on the Deflection Board

A bad turbo control valve can cause that, on the side of the air box, 1 connector and 3 hoses going to it, easy to replace. Dont mix up the hoses, they are color coded red, yellow and blue. Part should be relatively cheap.

I would suggest either the Focus block or the RED CRT drive board either one of those items could cause the symptom. A defective CRT could also, but a shorted CRT doesnt usually go back to being normal

i have had this happen to me several times in the field, and if it is what i think it is, you are not going to be happy =(

inside of a DLP type TV, there is a device called a 'color wheel'... it is essentially a disc made up of different colored glass that spins really fast. this disc has 3 or 6 (depending on make/model) pieces of colored glass like pieces of a pie affixed (read: glued) to a hub.

what happens sometimes is that one of the pieces of colored glass flys out of the hub, and causes a massive unbalance in the spinning wheel, which causes the hum/vibration, and since the colored glass is missing, the colors will be all messed up.

if this is what happened, then your television will require a new DLP engine.

Yes - - that indicates one of your convergence amps have failed. That unit takes two STK392-110 Sanyo amps which I personally would replace with STK392-150's for greater reliability. Also check all of the return resistors in that circuit 1.5 ohm 2w and feed resistors 3.3 ohm 1w all are flameproof. You'll likely find that one or more of the return resistors are bad, with suspecting the red is the failed amp check in particular R846 for change in value or open.
Bill

PF Kit2 is paper feed kit. I doubt that is the problem. Weve had strange color problems caused by waste toner.

Sounds like it. Replacement of both STKs is required. (They should always replaced as a set).