I have a Samsung HL-R5067W which I believe I bought around January of 2006. About six months ago, I upgraded TVs, so I moved the old Samsung DLP to the basement, where it rarely gets used. About a week ago, I turned it on, and witnessed some strange behavior: every few minutes, the picture would freeze for roughly 10--20 seconds, then the screen would go completely black. I'd then press the power button, the picture would come back for a while, and then the freeze/turn-off thing would happen again.
The other thing that was strange is hard to describe, but I'll try: when the picture wasn't frozen, there were pockets of snow spread evenly around the whole screen. "Snow" may be too strong of a word---it was more like small clusters of a dozen or so bad pixels. These little clusters were spread around the whole screen, in sort of a grid pattern. Interestingly, when the picture froze, these artifacts went away.
The other day, my wife tried to use it, and she couldn't get any picture at all.
We tried the compressed air trick mentioned a few posts ago; that unfortunately didn't help.
I'll add that when we were using this TV regularly, we noticed that the picture was getting darker. So the bulb almost certainly needs to be replaced. My question is: are the problems I'm seeing strictly related to a dead bulb? It seems like the artifacts and freezing picture would suggest more than just a bad bulb, but I'm not sure.
Also, I read through the discussion several pages back in this thread about that common problem where a chip needs to have the solder re-floated. I.e., all inputs except HDMI are terribly garbled with a greenish plaid-like pattern. I really don't care about this problem, since I am using the HDMI input exclusively. However, I thought I'd mention this in case it's relevant to the overall problem.
Hopefully someone recognizes these symptoms and can suggest what is wrong. And if anyone can give me a ballpark as to what it would cost to fix all these things, I'd like to hear that as well. If I could spend $250 or less and get at least a couple more years out of it, I'd fix it. But if I have to spend much more than that, I think I'd prefer to just get a cheapish flatscreen to replace it.