Is the drive a UniDisk 5.25" or Apple 5.25" drive? Only the Apple 5.25" drive works with the IIe card.
To see which drive you have, check the label on the underside of the unit. Other than original color (which is tough to tell since so many drives have yellowed) the drives look alike--and actually behave alike on Apple IIs (but not the LC card).
To see which drive you have, check the label on the underside of the unit. Other than original color (which is tough to tell since so many drives have yellowed) the drives look alike--and actually behave alike on Apple IIs (but not the LC card).