12
SERVICE
TILT CONTROL REPLACEMENT
The game’s controller has two axis, horizontal and tilt. If the game has no movement horizontally
when the controller is pushed to either side, you will need to check the horizontal pot located at the
back of the game. See previous page for details. If the game has no tilt control when you move the
controller handle left and right, you will need to check the tilt pot located at the back of the controller
handle.
To access the tilt pot, remove the front two joint connectors shown below. Remove the first three
controller rings to access the pot. Check for the presence of +5 VDC on two pins of the pot (One pin
will have +5VDC and the other Ground). The last pin should vary in voltage when the controller
handle is tilted left and right. If no voltage is found on two of the pins, check the wiring and I/O board
for failure. If voltage is present on two of the pins but no voltage is present at the output pin, replace
the pot. If you have sporadic movement, perform a calibration from the setup menu before replacing
the pot. If you do replace the pot you will also need to perform a calibration from the menu before
resuming use of your game. Be sure when replacing the tilt pot that the pot’s movement is centered
so that full travel can be achieved both left and right. In other words, center the pot, center the
controller, then engage the teeth of the gears.
Failure to do so will damage the replacement
pot.
