Macintosh 128k logic board schematics

[RichCini]

All --

I have a question about the Mac logic board schematics. There's a version of a schematic posted on Folklore.org (https://www.folklore.org/StoryView....&sortOrder=Sort+by+Date&topic=Hardware+Design) that's what I'd call a "flags" version, meaning each chip is separate and each pin flagged with a signal name...no bus lines I think AndyH called it a hybrid schematic. It appears to be for Prototype #6. Does anyone know if a better scan of it exists anywhere? When you zoom it to look at things like chip numbers or component values, it's very tough to read. It's quoted as being 11"x17" so maybe more easily scannable.

Thanks!
Rich

 

[desertrout]

I haven't seen a higher res version of that particular schematic personally fwiw, but there is this Bomarc version of the production 128k logic board in much higher res --- see attached. I'm not sure what you're after so I'm not sure if this will help you.

 

[Al Kossow]

digibarn had it
a copy is on bitsavers now

Index of /pdf/apple/mac/schematic

 

[NeXT]

digibarn had it
a copy is on bitsavers now

Index of /pdf/apple/mac/schematic

Did Bruce let you go through his stacks of paperwork before the collection move? I recall knowing he had that on his site for a while but the quality was hit and miss on some parts.

 

[Al Kossow]

I scanned some things a year or two before the deep pockets collectors took everything
They claim they will scan it, some day...