Mac 68k

Classic Macintosh Schematics

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:

Macintosh 68k Schematics

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.

Macintosh 68 Schematics Mirror