Essilor AKR 750 - Page 29

29
Does the chin rest move?
OK
YES
7-17 Chin rest does not move.
The main causes when the chin rest does not move:
・ Failure of the chin holder vertical movement switch board
・ Failure of the chin rest sensor board
・ Failure of the chin rest motor
・ Failure of 3 axes control board
NO
NO
Replace the chin rest ASSY.
OK
Does the chin rest move?
OK
YES
Replace 3 axes control board.
Does the chin rest move?
OK
YES
NO
Replace the chin holder vertical
movement switch board.
Replace the chin rest motor ASSY.
The chin rest does not move.