1 Aug 21:40
RE: Sick Model 100 (update)
Doug- I'd be happy to have a look at it for you. I'm constantly fixing these out of my pile of M100s. Certainly sounds like you have a short somewhere, or another fault in the power supply system. There is a transistor that connects the memory voltage (3.6) to the +5V supply (transistor T28). If this transistor was somehow fried, then it would be constantly connecting +5 to +3.6, which would rapidly discharge the nicad when powered off, and also you'd never be able to start the machine without corrupt memory. Just a theory. I'm in Kanada eh, so shipping is a bit more unfortunately. Depends how bad you want it fixed vs. getting another. But, if you wanted a remem installed, I could do that at the same time!!! ;) cheers, Steve -----Original Message----- From: dougstump@... [mailto:dougstump@...] Sent: Monday, July 24, 2006 3:54 PM To: m100@... Subject: Sick Model 100 (update) Well, where's where I ended up. The memory ni-cad will charge up, but when you disconnect the computer from the wall wort and stick a digital meter on the battery (or the right pins on the expansion socket) you can watch the voltage going down. It drops from 3.6 volts to nothing in a minute or two. Clearly, something is pulling way too much power in the memory circuit.(Continue reading)
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