I have a 1292q for about 6 years, love the picture quality, but now I have a major problem. Last night while watching a dvd, the picture began to flicker, which it had done in the past. I shut it off and then back on, and now there is only four of five pair of faint red and green lines going across the screen. looking at the tubes, the red and green are lit, but the blue is off. Can someone guide me in a direction. there are no error lights coming on,and I don't have a service manual to trouble shoot with. I live in Connecticut and if there is a service person in this area, I would be happy to let him look at it. If its a fuse or a defective board, I can do that kind of replacement.
I will take any suggestions as to what to do.
ps. Only 4300 hrs on the tubes

Thanks