It was a stupid mistake. I had a working Lisa (Mac XL) and a dead Lisa 2 with many parts missing. I've been testing out the parts and trying to figure out how things work by swapping parts in and out of the Lisa/XL. The fatal mistake came when I swapped in the CPU/RAM/IO/motherboard assembly, powered it on, and heard a sickening crackle. I unplugged it, and then realized that I'd put the CPU assembly chassis into the Lisa without the CPU board in it. Arrgh.
So, I may be out of the Lisa business altogether now. Without a working Lisa, it will be very difficult for me to diagnose the problem. (It's probably the power supply or the video board, I think. There are no obviously burned-out capacitors, after a quick inspection.) And working Lisas are going for more than $500 on eBay, which is a bit beyond my vintage computer budget.
Maybe there's a list member in the vicinity of Baltimore, MD, USA? If so, maybe I could test my power supply in their Lisa.
Cheers, and be careful out there!
Dave
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Received on 2000-08-19 10:50:21
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