Orion 7880 instruction manual Parts List, Installation, Qty. Description

Parts List

Your IntelliScope™ Computerized Object Locator comes with the following parts:

Qty. Description

1Object locator computer (controller)

1Altitude encoder assembly

1Coil cable

1Altitude encoder cable (53" long)

1Azimuth encoder cable (24" long)

6Wire retaining clips

2Hook-and-loop strips (1 “hook” strip, 1 “loop” strip)

1Plastic bumper

3Wood screws

2Nylon washers

19-volt battery

The only tool needed for installation is a Phillips-head screwdriver. Remove the optical tube from the base to begin installation.

Note: The IntelliScope Computerized Object Locator is only compatible with Orion Sky- Quest XT IntelliScope Dobsonians. If you have another Dobsonian, or any other tele- scope, the IntelliScope system will not function properly.

1. Installation

1)Install the altitude encoder assembly onto the base’s right side panel. This is the side of the base opposite the side with the IntelliScope Computerized Controller Port. Below the 5/8" through-hole in the panel, there are two predrilled starter holes in the inwardfacing surface (Figure 2). Take two of the supplied wood screws and push them through the two slotted holes in the bottom of the altitude encoder’s computer board. The screw heads should be on the same side as the altitude encoder’s modular jack. Now, with the screws pushed through the encoder board, place a nylon washer on the end of each screw (Figure 3). Then, thread the screws into the starter holes in the side panel. The shaft on the altitude encoder assembly should protrude through the 5/8" through-hole in the side panel. It will take a bit of dexterity to keep the washers on the ends of the screws when installing, so don’t get frustrated if it takes a couple tries. The screws should not be fully tightened; they should be tight, but not tight enough to prevent the altitude encoder from moving up and down within the slots in the encoder board.

2)There is a pilot hole above the 5/8" through hole in the right side panel’s interior sur- face; this is where the plastic bumper that protects the altitude encoder assembly will be installed. Take the remaining wood screw, push it through the bumper, and thread it into the pilot hole until tight (Figure 4).

3)Connect one end of the azimuth encoder cable (the shorter of the two cables) to the encoder jack in the top baseplate of the Dobsonian base. Connect the other end to the

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