I have the 16KRA manual handy, but it is about 90 pages long. It has schematics, theory of operation, diagnostic test, etc. If you want a copy for about $10 let me know. Meanwhile, perhaps this will help: a15 a14 a13 a12 a15 a14 a13 a12 sw1-8 o o o o o o o o sw1-1 page 1 page 2 sw2-8 o o o o o o o o sw2-1 page 3 page 4 starting address a15 a14 a13 a12 x=open, off, down c=closed, on, up 0000 x x x x 1000 x x x c 2000 x x c x 3000 x x c c 4000 x c x x 5000 x c x c 6000 x c c x 7000 x c c c 8000 c x x x 9000 c x x c A000 c x c x B000 c x c c C000 c c x x D000 c c x c E000 c c c x F000 c c c c I have a 32KRA manual around here too. Just can't find it right now. And, BTW, "Processor Technology also provides factory repair service on out of warranty products....charges will not exceed $20 without prior notification and your approval." <G> Bob Stek bobstek(a)ix.netcom.com Saver of Lost SOLs -----Original Message----- From: CLASSICCMP-owner(a)u.washington.edu [mailto:CLASSICCMP-owner@u.washington.edu]On Behalf Of Mike Noel Sent: Friday, December 03, 1999 12:12 PM To: Discussion re-collecting of classic computers Subject: Processor Technology S100 memory boards I'm looking for manuals for Processor Technology 16KRA and 32KRA S100 memory boards. I've a SOL-20 with 1 of each, and the 16KRA has a bad 4k block so I'm trying to (1) figure out how to reconfig the cards so the bad memory is at the end instead of the middle, and/or (2) figure out how to fix the bad card. Anyone able to xerox their manual(s) for me? Thanks