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COIN MECHS
It is possible to use other coin mechanisms on this machine. The wiring harness terminates on both Spade-
type connectors and an IDC connector for this purpose, the signal lines are:
# Wire Color Signal
1 Yellow 12V
2 Gray-Red Coin Signal
3 Blue-Green Enable (low=enable, high=disable) (this should be hooked to coin-mech ground)
4 Black GND, actual DC Ground
Notes:
The ‘Device Ground/Enable’ line comes from the IO-Expander 3 Board, as commanded by the main CPU to
enable or disable money intake. It is necessary that your coin-mech device has a coin-lock ‘reject’ solenoid
so that this feature is available.
Normally, for an Imonex, if it has a coin reject solenoid, you hook the solenoid’s ‘ground’ to the enable line,
so that the game can control it.
For an electronic coin-mech, like the MPU, you hook up the coin-mech’s ‘ground’ to the enable line.
8-Error Codes and Troubleshooting guide
TROUBLESHOOTING GUIDE
Following a methodical approach will make it easier for you to resolve issues with any type of equipment. In
most cases, machinery consists only of a set of input signals, a process for those signals, and some resulting
outputs. Separating the system into these three areas lets you have a clear map when looking for solutions.
In general terms, to isolate a fault, you usually follow these steps (not necessarily in this order):
1) INPUT (from button switch, etc.)
- Determine if the related input signals (i.e. button, etc.) are reaching the processing stage, usually a
PCB board.
- Determine if its related input signal reaches the control system (i.e. board), by measuring continuity
in the wires.
- If there is still some doubt on the consistency of the connection, you can ground the input on the
board directly, by removing the connector in question and using a small wire to bypass the harness
and bring ground (or the appropriate signal) to it.
2) PROCESS (usually a PCB board)
- Check power is reaching the device. If it’s a PCB board, it usually has a static LED light showing it’s
powered.
- Check board is running, usually showing a separate flashing LED light.
- Check the board has the right program, by checking the firmware name sticker on the board
surface.
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