On 10/23/2011 4:11 PM, Mike Naberezny wrote: > Hi all, > > I have what appears to be a 1540 drive prototype. > > Here are some photos of the board: > http://mikenaberezny.com/hardware/1540-prototype > > Externally, it is a 2031S (a single full-height 5.25" drive for > PET/CBM in a metal case). Unlike a normal 2031S, this drive has a > completely different circuit board and has an IEC port instead of > IEEE-488. > > The top of the board has the markings: > > ASSY 15400000 > SERIAL FLOPPY CONTROLLER > (C)1980 COMMODORE INTL > > and on the bottom: > > FAB 1540001 > ARTWORK 1540000 > REV 1 > > The board is unlike any production drive I've seen. It has no solder > mask and looks like it was soldered by hand. It has a few trace cuts > and fixes. It's clear that the board was made specifically for the > 2031S chassis and the full-height drive. > > I have not powered it up. A previous owner has installed a 6502 where > a 6522 should be. It also has the ROMs for a 2031 installed, which > can't work with the IEC interface. I plan to compare the board > against the 1541. If it's close, I'd like to try and bring it up with > the 1541 ROMs. > > Regards, > Mike Lucky hacker! It does indeed look like you have a proto. I'd love to hear how it came into your hands. Jim -- Jim Brain brain@jbrain.com www.jbrain.com Message was sent through the cbm-hackers mailing listReceived on 2011-10-24 01:00:03
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