Damaged insulation of the wire unit (reference SC of ) of the shutter motor (reference SM of ).

Check the insulation of the wire unit of the motor.

1. Repair the insulation of the wire unit using shrink sleeve.

2. If not repairable, replace the whole wire unit and/or motor.

Malfunction Fan & Motor Control board.

Replace the Fan & Motor Control board.

Malfunction SMPS. 30 volt supply failure.

Replace the SMPS module.

Defect zoom/focus/shift/shutter motors.

Replace the defect motor.

Malfunction Power Backplane (bad connection)

Replace the Power Backplane.