The video is in production but I wanted to get the information for pin assignments out ASAP. I will be adding to this post as more information is available

Common Pin Assignment Confusion

Pin numbers for C64 cable and connector. NOTE that the numbers are mirrored due to the viewing angle!

When making cables, for the bench power supply or otherwise, there are a couple things you need to keep in mind. The one thing I see trip people up again and again is that the pin numbers are mirrored depending on whether you are viewing the end of the cable or the port it plugs into (This is because the cable is turned around when viewing the pins). This is often exacerbated when a pin diagram does not state which view it is for. A great example is the Amiga 500 schematics that show the power cable view on a circuit diagram where the board connector goes (Its even labeled CN8)

Amiga 500 Schematics showing cable end view. Top left is hand drawn pins for CN8

Pin Assignments for the Bench Power Supply

I have selected to assign pin numbers that match the aviation connectors I used in my build. I suspect that most will be marked similarly but make sure they match what I have done.

Drive connector pin and voltage assignments
8-pin Computer connector pin and voltage assignments.
Note that the pin assignments match those on the original chart from the first post.

Posts in this Series

Part 1 – Commodore Universal Bench Power Supply – Planning
Part 2 – Commodore Universal Bench Power Supply – Parts
Part 3 – Commodore Universal Bench Power Supply – Build
Part 4 – This Post

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