I have an eleven-year-old 5063W which was recently moved to high altitude (I don't know if this has anything to do with my problem, but I thought I would include the fact). It was working fine until one day when I turned it on I heard a crack and the TV refused to start up. It went through the usual three tries, then the dreaded three flashing lights. All sources (including Samsung service) said this indicated a bad bulb. Ordered a replacement Philips bulb, inserted it and same problem. When I turn the TV on (actually the only way I can turn it on now is to plug it in) I hear the clicking, the little melody of startup and some low humming noises (fans?) but no spinning noise. I would assume if the color wheel were broken, I would hear a lot of bad vibrations.
Does the switch to turn on the color wheel ever go bad?
What other possibilities might there be for this problem? I am reluctant to spend much money on this but I also hate to abandon the set if it is easily fixed.