Roland VersaCamm VS-640 Service Notes page 151

Fix the Grit Encoder Stopper with the three screws while
9
holding the Shaft
Fix the Grit Encoder Board together with the stay so that the
10
Grit Encoder is in between the gap of sensor.
Adjust the position
of the sensor so that
the clearance with
the Grit Encoder is
around 1mm.
Rotate the Shaft to check that the Grit Encoder does not
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touch the sensor
Turn on the Main Power SW, and then turn on the Sub Power
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SW while pressing the left, right and down keys to enter the
Service Mode.
Grit Encoder Board
1mm
3-78
Grit Encoder Stopper
シャフト
+
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