Chapter 8 Troubleshooting4 Microscope Control with the PC- 36 -4 Microscope Control with the PCTrouble Check pointUnable to controlmicroscope functions.(Or incorrect controlresults.)• Check that the Nikon 80i/90i microscope is used. This function cannot beused with a microscope from a different company or other Nikonmicroscope models.• Check that the microscope is turned on.• Check that the microscope is ready for operation. It takes about 30seconds for the microscope to be ready.• Check that the USB cable is connected securely between the DS-U2 andthe digital imaging head on the 80i microscope or the 90i microscope.• Check that the hub between the microscope and the DS-U2 is within alevel in the tree structure. Using a hub within a level is recommended.• Check that the USB cable provided with the microscope is used toconnect the microscope and the DS-U2.• Check that the application software designed for control of the Nikon80i/90i microscope is used.Unable to displaymicroscope status.(Or incorrect statusinformation isdisplayed.)• Check that the microscope initial setting is performed.• Check that the registration is changed if the objective or filters arereplaced.