I tried to find what are the EPROM chips on that board without destroying their original labels. One is the BIOS, which is probably a '256 EPROM or bigger and the other one I am not even sure if it is an EPROM it's marked with 391171-01. Googling gives me Martin's pages for example http://mhv.bplaced.net/cbmroms/cbmroms.php where I can find that it's a 2KiB ROM (?) called 8242/8742 http://mhv.bplaced.net/cbmroms/8242.htm Interesting capacity for a 40 pin chip... could someone shed some light on what it actually is? Also I don't seem to be able to locate the schematics for the A2386SX. Do we have any? There seem to be only 2286 on zimmers. -- SD! - http://e4aws.silverdr.com/ Message was sent through the cbm-hackers mailing listReceived on 2017-07-18 21:00:02
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