68kMLA Classic Interface

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Calling All Macintosh Plus Owners I Need Your Assistance.

Posted by: jajan547 on 2022-10-15 00:38:12 Hello everyone I think I may have stumbled upon something special, I suspect something odd on a machine I picked up (Macintosh Plus Rev C Board). If you all could post a photo near the reset and interrupt switches on your boards this would help a lot! This can be any revision but C definitely helps. Thank You. 🙂 ​

Posted by: joshc on 2022-10-15 02:35:06 Got a pic of what you think is unusual on yours?

Posted by: bibilit on 2022-10-15 02:37:28 Rev C board

Posted by: jajan547 on 2022-10-15 17:28:19 Very interesting some C boards have markings there

Posted by: LaPorta on 2022-10-15 17:45:09 What exactly are we looking for?

Posted by: jajan547 on 2022-10-15 17:46:23 Thought this was strange but guess not

Posted by: rollmastr on 2022-10-16 00:43:05 This is the logic board out of a late Mac Plus that was built in 1990. I had to replace the ROMs to get it working.

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