Essilor AKR 750 - 7-4 Motor Fault Troubleshooting

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7-4 Error message ‘Motor fault’ appears.
The main causes when the error message ‘EEPROM fault’ appears:
・ Failure of the motor assy, the optical control board, or EEPROM board
・ Failure of the forcus motor positioning sensor boardor, the target motor positioning sensor
board
Does the message still appear?
Does the message still appear?
‘Motor fault’ is displayed.
Replace the optical control board.
NO
YES
Replace the optical unit ASSY.
NO
YES
Replace the main control board.
OK