causing graphical information to be displayed on {HEAD ~ the display} in {TAIL ~ connection} with the at least one mismatched optical part, the graphical information including information about at least one of: the necessary optical part which should be newly installed in the main equipment, and the installed optical part which should be removed from the main equipment 
in
causing graphical information to be displayed on { HEAD ~ the display } in { TAIL ~ connection } with the at least one mismatched optical part , the graphical information including information about at least one of : the necessary optical part which should be newly installed in the main equipment , and the installed optical part which should be removed from the main equipment
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH