One of the many neverending projects I have going is to repair a Mac Classic 2. I may have a future post on it, but essentially I tried recapping it but stripped some of the leads while trying to remove the leaky capacitors that were sending corrosion all over the mother board. In order to fix this, I need to hook the capacitors to a “via” which can act as a replacement for the lead using a small wire.
It took me a while to track down, but the Mac Schematics for these old machines are on the internet archive here:
Here’s the info from the archive:
Bomarc Services reverse engineered several Apple Macintosh computers in the 1990s and sold the schematics to companies providing products or services that needed such documentation. Bomarc Services has now disappeared. I have done my best to track down the documents and process them for preservation. The Bomarc schematics were distributed on heavily watermarked, photocopied color paper. The only copies to be found were black and white scans. They were difficult to read in their original form due to the heavy watermarking and poor contrast. This collection represents hundreds of hours of retouching to restore the scans to something useful. In retrospect, the time might have been better spent re-drawing them from scratch. In any case, they are now much improved over the original scans, despite many flaws still present. Also included are some Apple schematics. These are mostly incomplete. Bomarc Schematics ----------------- Macintosh Classic Macintosh Classic II Macintosh Color Classic Macintosh II Macintosh IIci Macintosh IIcx Macintosh IIfx Macintosh IIsi Macintosh LC II Macintosh LC III Macintosh Quadra 840av Apple Schematics ---------------- Macintosh M0001 Macintosh Plus Macintosh SE Identifier Macintosh68kSchematics Identifier-ark ark:/13960/t6743vf7p Scanner Internet Archive HTML5 Uploader 1.6.3
Alternatively, I have made a backup copy here. Please only use it if the above link isn’t working.
retro macintosh apple electronics