41
8.5. Removal of the MOS SENSOR Unit
When remove the MOS SENSOR unit once (the screw(E) is
loosened even a little), the optical tilt adjustment is required.
When loosen the screw(E), necessary the optical tilt adjustment
at the end of assembling. (Refer to item "9.3.2.") 
To prevent the MOS SENSOR unit from catching the dust and
dirt, do not remove the MOS SENSOR unit except for replac-
ing.