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Troubleshooting & Maintenance
Scanner Tests
Alpha Wheel
To test the Alpha Wheel, turn it to increase or decrease the value by one. Turning clockwise
should increase the numbers in order 0-1-2-3-0-1-2... and decrease the numbers in order 3-2-1-0-
3-2-1... turning counterclockwise. The expected test result when the Alpha Wheel is turned is
one of four values–0, 1, 2, or 3:
SPINKNOB = 3
Front Panel Sliders
To test the front panel sliders, move a slider to check its value at the bottom, center, and top. An
example of the normal test results for the Slider A follows (your results may vary slightly):
At bottom: SLIDER 1 = 0
At center: SLIDER 1 = 128
At top: SLIDER 1 = 255
Right Main Output
Insert a 1/4” plug or cable into the Main Right Output. The expected test result follows:
RIGHT JACK
Remove the plug or cable and the message should disappear.
Switch Pedals 1, 2, and 3
To test a switch pedal, press the pedal. An example of the expected test result for the switch
pedal 1 follows:
Full depression: PEDAL 1
Continuous Control Pedal 1 and 2
To test the continuous control pedal, press the pedal. An example of the expected test result for
the continuous control pedal follows:
No depression: CTRL PEDAL = 0
Full depression: CTRL PEDAL = 255
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