Ok, for some reason I didn't get the replies to my post on email, I only saw them when I looked at the http://cbm-hackers.2304266.n4.nabble.com listing. I re-subscribed, perhaps it'll work now and hopefully this gets thrue. Thanks for all comments! The manual speaks of "VIC 20" or "CBM 64", the only other Commodore products mentioned are VIC-1540 floppy and VIC-1515 printer so it sounds much like a product of the VIC-20/very early C64 days. It's fascinating if the switch indeed was later upgraded to C128 bust mode. I took some more photos of the boards, here: https://postimg.cc/gallery/1rae8tp30/ I didn't yet tried to beep out where the traces under the ICs go but I'll have another go at it later. I replaced the (loose and oxidized) barrel DC connector with a 2-pin Phoenix connector (which doesn't obstruct from the case, looks better) and powered it up. At about 17v input I got a nice +5v and +15v outputs from the regulators and the power led was on. Now, I need to figure out how to find enough space to come up with a test setup for this... :) -- Sent from: http://cbm-hackers.2304266.n4.nabble.com/Received on 2018-07-29 15:00:05
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