Bomarc Services, of PO Box 1113, Caspar, WY 82602 produce(d) some, and may be able to help you with MLB and PAB schematics, at a price. There are no internals shown for the SIMMs, …
I always liked working on my PB 170 (when it was alive) but I absolutely abhored my PowerBook 190. That thing broke so often, it was not even funny. I lost my homework everytime i…