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Dual arcade steering wheel help.

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fa001:

Not knowing which game your wheel is from I can not find the specific schematic. However here is a typical encoder. I would suspect that yours would be similar.



fa001:

Also on the IC pin 14 should be the +5 volts and pin 7 the Gnd. So you can check which wire out is +5 or Gnd by checking continuity to those pins.

chrimeg:

Thanks that should help. Have to do some tracing to the IC I guess.

That PCB schematic looks very close to what I have.

So if Im correct the 5+ on the opti pac goes to red wire, gnd to black, grey to x1 and brown to x2. Is this right?

Really wish I new what game this came from.....

fa001:

That is where you need to look at the circuit board. But I would suspect that the heaver wires are the power wires and the thinner wires are the signal wires.

So red and white (not black?) are power/ground and grey & brown are signal. But you should verify from the circuit traces which is power and which is ground.

u_rebelscum:

The nice thing is with these simple boards, all you need to get correct the first time is the power and ground.  The 2 signal wires can be swapped if you get them backwards (the only problem will be the mouse pointer will move backwards).


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