Celestron 91525, 11055, 11065 Northern/Southern Hemisphere Operation, Hand Controller

Northern/Southern Hemisphere Operation

When using your Celestron CM-1100 in the southern hemisphere, there is a need to reverse the motors. Changing from northern hemisphere to southern hemisphere requires changing the polarity of the drive motor by changing the settings of the dip switches on the electronics board. To do this:

1.Remove the cover of the electronic console by removing the four screws (one in each corner).

2.Remove the two screws (one directly above the DEC motor jack and the other next to the On/Off indicator light) that attach the cover to the elec- tronics board where the dip switches are located.

3.Locate the dip switches on the electronics board as shown on figure 5-5.

4.For operation in the southern hemisphere, set switch 4 to the OFF or down position (see Figure 5-6).

The direction of the drive motor is now reversed and will work in the southern hemisphere. If going from the southern hemisphere to the northern hemi- sphere, simply change the switch back to the ON or up position.

Figure 5-5 Figure 5-6

The Hand Controller

The hand controller allows you to move the telescope in R.A. and DEC using the corresponding motors. This includes fine corrections for guided astropho- tography and minor adjustments for centering objects in the field of view.

The buttons on the hand controller are intentionally labeled in a rather vague manner. This is due to the fact that the direction of motion of the mount varies depending on how the telescope is oriented. Furthermore, these buttons are user definable to eliminate confusion when guiding. (For more information, see the section on “R.A./DEC Reverse.”)

Once again, to move the telescope at the 20x speed WITHOUT changing the guide setting, press the button that corresponds to the direction you want to move the telescope. While holding the button down, press the opposite directional button. For example, if you want to move the telescope west, hold the west button down and then press the east button. Conversely, if you want to move the telescope east, hold the east button down then press the west button. The fast-set function also works in declination.

Using the Drive • 41