Interactive Connector Diagram
Click or tap any pin in the diagram below to inspect its signal assignment, electrical specification, and wire colour standard.
Click any pin to view its signal assignment, electrical spec, and wire colour.
Used in Retro Machine Hubs
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Connector Specifications
Dragon Joystick
5-Pin 240° DIN (Pin 1=X Wiper, Pin 2=Y Wiper, Pin 3=GND, Pin 4=/Fire 1, Pin 5=+5V)
CoCo Joystick
6-Pin 240° DIN (Pins 1–5 identical to Dragon + Center Pin 6 = /Fire 2!)
Cassette Port
5-Pin 180° DIN (Pins 1 & 3 = Motor Relay, Pin 2 = GND, Pin 4 = EAR In, Pin 5 = MIC Out)
Full Pin Assignment & Wiring Reference
| Pin | Signal Name | Direction | Electrical Spec / Role | Wire Colour / SCART / Adapter Target |
|---|---|---|---|---|
| Joy Pin 1 | X-AXIS WIPER | In | 0 V (Left) to +5 V (Right) from 100 kΩ horizontal pot wiper | White |
| Joy Pin 2 | Y-AXIS WIPER | In | 0 V (Up) to +5 V (Down) from 100 kΩ vertical pot wiper | Blue / Green |
| Joy Pin 3 | GND (0 V) | GND | 0 V Ground for bottom of both 100 kΩ pots and Fire button(s) | Black |
| Joy Pin 4 | /FIRE 1 | In | Primary Fire Button (Active-Low to Pin 3 GND) | Orange / Yellow |
| Joy Pin 5 | +5.0V REF | Pwr | +5.0 V DC Reference for top of both 100 kΩ pots | Red |
| Joy Pin 6 (CoCo 3) | /FIRE 2 (CoCo 3) | In | Secondary Fire / Right Mouse Button on 6-Pin CoCo socket | Brown |
| Tape Pin 1 & 3 | MOTOR RELAY | Out | Isolated Internal Reed Relay Contacts (2.5mm sub-mini REM plug) | Grey (2.5mm REM Plug) |
| Tape Pin 2 | GND (0 V) | GND | Cassette Audio Return Ground | Black (All 3.5mm Sleeves) |
| Tape Pin 4 & 5 | EAR IN (4) & MIC OUT (5) | I/O | Pin 4 = Audio In from Tape EAR (White) | Pin 5 = Audio Out to MIC (Red) | White Plug (4) / Red Plug (5) |
Using a Tandy CoCo Joystick on a Dragon 32/64 & Loading .CAS Files from a Phone
The Dragon 32/64 (5-pin 240° DIN) and Tandy Color Computer 1/2/3 (6-pin 240° DIN) share the exact same pin assignments on Pins 1 through 5 for their analogue joysticks (with CoCo Pin 6 adding a second fire button for the CoCo 3). Even better, the 5-pin 180° DIN cassette port on the Dragon, CoCo 1/2/3, and Z80 TRS-80 Model I/III/4 all use the same standard audio/motor pins!
- Using a 6-Pin CoCo Joystick on a 5-Pin Dragon: Because Pins 1–5 are identical in layout and function, you can either build a 1-to-1 Pin 1–5 adapter or carefully remove the unused center Pin 6 from a spare CoCo plug.
- Loading .CAS / .WAV Files from a Smartphone/PC: Wire Tape DIN Pin 4 (Audio In) to the Tip of a 3.5mm plug and Pin 2 (GND) to the Sleeve. Set PC/Phone volume to ~65–75% and type CLOAD (or CLOADM).