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E-21: Stepper Controller Error
This Error occurs if the game is not getting the correct signal from the Stepper Controller.
Troubleshooting:
Check the 2 Pin plug going into the stepper controller board
1
Check that there are no cold solder joints.
2
Plug is not missing.
3
Check that the Blue and Gray wires are connected and seated properly.
Check continuity on the Blue and Gray wires.
1.
Set their volt meter to Ohms
Ω
.
2.
Place prongs on both end one gray wire. You should have some resistance.
3.
Repeat step 2 for blue wire.
Check continuity between the blue and gray wires.
1
Set their volt meter to Ohms
Ω
.
2
Place one prong on Blue end and the other on Gray.
Check for any discoloration on board
1.
If discolored may be sighs of a short.
a.
Check that wires are not shorted
b.
Check that board is not faulty
Make sure that motor wires are connected properly.
Check Power is going to stepper controller board.
1.
On the board there are 2 lights.
a.
The VCC light. Should be on solid.
b.
The CPU light. Should be blinking.
E-22: LED Bar Error (Banana Board)
This Error occurs if the LED Bar board is not responding.
Troubleshooting:
Make sure board is receiving power if board is not turning on.
1.
On the board there are 2 lights.
a.
The VCC light. Should be on solid.
b.
The CPU light. Should be blinking.
Check for any floating grounds.
Check for any discoloration on board.