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 -- Mike Naberezny (mike@naberezny.com) http://6502.org Message was sent through the cbm-hackers mailing listReceived on 2011-10-23 22:00:08
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