The XXH1541 cable combo

You should follow these instructions if you already have an X1541 cable and you want to transform it.

Important notes

Construction

First, create the parallel port for 1541 drives or the parallel port for 1570 and 1571 drives.

You need the following parts to build this cable:

Step 1. Solder one end of the cable onto the game plug.

Step 2. Solder those wires of the cable, that don't go through a diode, on the other end of the cable onto the parallel plug. These include the following connections:

Game plug Parallel plug
1 13, Select
2 12, PaperEnd
3 10, Ack
4 11, Busy
not connected 18-25, GND

Step 3. Solder the remaining wires of the cable through a diode onto the parallel plug. These including the following connections:

Game plug Parallel plug
5 6, Data 4
6 7, Data 5
7 8, Data 6
8 9, Data 7

The cathodes of the diodes should be pointing towards the pins in the right column of the table.

Step 4. Build the diode bridges between the appropriate pins of the parallel plug. These include the following connections:

Parallel plug Parallel plug
10, Ack 4, Data 2
11, Busy 5, Data 3
12, PaperEnd 3, Data 1
13, Select 2, Data 0

The cathodes should be pointing towards the pins in the right column of the table.

Circuit diagram

[XXH1541 cable combo]

The original connections of the X1541 cable are shown in grey. You can find the description of all parts used on the diagrams at the legend page.

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