On circuit diagrams, plugs are displayed as viewed from the back side, the solder side. Chips are displayed as viewed from above; also, see the small semicircular cut for finding the correct orientation. When in doubt, see the corresponding description on the legend page.
You need the following parts to build this cable:
One solderable 7-pin female mini-DIN plug (Commodore 1531 datasette)
One solderable 15-pin male plug (PC game port)
One solderable 25-pin male plug (PC parallel plug)
A 6-wire cable of 0.5 meters
Some heat-shrink insulator material
Step 1. Use a sharp knife to strip off the insulation from about 2/3 of the length of the cable. Separate the wires into two strands, 2 and 4 wires each. Use heat-shrink insulator material to insulate the two strands again, so that, in the end, your cable represents a Y-fork.
Step 2. Solder the 2 wires of the first strand to pins 1 (+5V) and 4 (GND) of the game plug.
Step 3. Solder the 4 wires of the second strand to the appropriate pins of the parallel plug.
Step 4. Solder the 6 wires on the other end of the cable to the mini-DIN plug. Solder the two GND wires from the different plugs together, and add short lengths of wire to connect pins 1-7 and pins 2-5. You should have the following connections:
|Mini-DIN plug||Game plug|| Parallel plug|
|1 and 7, GND||4, GND|| 18-25, GND|
|2 and 3, +5V||1, +5V|| not connected |
|4, Read||not connected|| 10, Ack|
|5, Write||not connected|| 3, Data 1|
|6, Sense||not connected|| 12, PaperEnd|
You can find the description of all parts used on the diagrams at the legend page.
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