I have had this old Digiscan Ufo laying around for about a year and a am ready to install in my restored 138xlr, but the manual I can find is for an earlier model. My Digiscan has only 2 movable blocks and 9 switches not like the 13 movable blocks pictured in the manual I have been able to find.
Here Is a copy of the one I can find
Here Is a copy of the one I can find