Post #2650068
2025-02-28 21:03 UTC
@paulrickards@mastodon.social I always wondered if you simply had to add a 68k CPU to the Duo Dock to build a complete Mac...
I don't have a pinout, but the voltages are listed as +5, +12, -12 and +19V on p. 13 of https://cdn.preterhuman.net/texts/computing/apple_hardware_devnotes/PowerBook%20Duo%20Dock%20II.pdf
This document also refers to Chapter 14, "Macintosh Duo Dock Hardware," of "Macintosh Developer Notes, Number 2" which I was unable to find.
Strangely, the pinout for the connector to the Powerbook shows "Raw +24V from AC adapter" lines here:
https://allpinouts.org/pinouts/connectors/buses/apple-duo-dock/
Replies (1)
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@paulrickards@mastodon.social 2025-02-28 21:19
@me_@sueden.social Great, thanks! Yeah the motherboard is quite busy but alas no place for a CPU (just a FPU). I think the +19V is used for the motorized inject/eject. Curious the about +24V AC adapter lines. I wonder if they're even used here? I'll know more when the board arrives.