After finishing working on my SE/30, am about to tackle my TAM with dark screen. I have owned this TAM for over 10 years, worked fine until I let it sit for a while unused. Symptoms - TAM power supply led turns green no problem. TAM powers up and chimes. Screen totally black. Tried : reset button (black purge button) - changing pram battery reseating ram changing HD trying to boot from CD (CD works- at least sounds like it and door opens) Any opinions appreciated !