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Mac 512 logicboard repair

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On April 27, 2019 at 6:44 PM, theslownorris said:

does anyone one know what chips/components lie along this/these io paths?

Look at Inside Macintosh volume III. The mouse is attached to the 8530 SCC and 6522 VIA. The VIA tracks X,Y movement of the mouse, while the SCC sends interrupts to the 68000 CPU when the mouse is in fact moved.

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