Benchmark Games Monster Drop Chaos, Manual

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26
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):
I. 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.
II. PROCESS (usually a PCB board)
•
Check if power is reac hing the device. If it’s a PCB board, it usually has a static LED light showing
it’s powered.
•
Check if board is running, usually showing a separate flashing LED light.
•
Check if the board has the right program, by checking the firmware name sticker on the board
surface.
•
Swapping the board for a known-good replacement is a very common way to determine right
away if the problem lays with the board. Be mindful though, that there might be an external issue
that damages the board in the first place. That’s why it’s important to first check the power
voltage has the proper level, etc.
•
If there are more than one like-boards on the machine, swapping them around will let you know if
the problem follows the board or if stays with the assembly section.
III. OUTPUTS (to light, solenoid, motor, or another PCB board)
•
Determine if the process output signals are reaching the end-device
•
Measure continuity on the wires from the output of the PCB board to the end device.
•
If there is still some doubt regarding the connection, try activating the device directly by
disconnecting the output connector from the board, and using a spare piece of wire to feed it the
proper signal.
•
For example, disconnecting the hi-current output board and feeding ground to one of the output
pins on the harness side, to activate a solenoid directly for a brief moment.
•
Like in the other examples, swapping the device for a known good unit also helps in narrowing
things down.