The Commodore parallel cable

for Commodore 1541 drives

You should follow these instructions if you want to connect the cable directly onto the periphery chip in the drive.

Important notes


You need the following parts to build this cable:

Step 1. Solder one end of the cable right onto the VIA#1 periphery chip inside the drive.

Step 2. Solder the other end of the cable onto the user port plug. You should have the following connections:

VIA#1 User port plug
2, PA0 C, PB0
3, PA1 D, PB1
4, PA2 E, PB2
5, PA3 F, PB3
6, PA4 H, PB4
7, PA5 J, PB5
8, PA6 K, PB6
9, PA7 L, PB7
18, CB1 8, PC2
39, CA2 B, FLAG2
not connected A, GND

Circuit diagram

[Commodore parallel cable for 1541 drives]

You can find the description of all parts used on the diagrams at the legend page.

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