saj@chinet.chi.il.us (Stephen Jacobs) (09/13/90)
I asked for help last week when my Mega stopped showing the program listing, button labels, etc in Mark Williams csd, and went blank when melt.acc was invoked. As predicted, the local service guy said 'bring it in when something less tricky goes wrong'. Well, that turned out to be the hardest part of the repair. D.E.G.A.S. wasn't working right, and he agreed that was a well behaved program. Turned out both MMU and DMA chips were failing. It's absolutely shocking that the machine worked almost normally with half its guts gone. Steve J.