Roland VersaCamm VS-640i Service Notes page 146

Remove the Grit Encoder Board.
5
Remove the Grit Encoder Stopper.
6
Remove the Grit Encoder.
7
Make sure not to scratch or leave any fi ngerprints
on the Grit Encoder.
Fix a new Grit Encoder.
8
The both sides of the Grit Encoder is the same.
When fixing the Grit Encoder, make sure not to
scratch or leave any fi ngerprints on it.
Grit Encoder Board
Grit Encoder Stopper
Grit Encoder
Grit Encoder
3-82