Gemini Users Manual 91
the “Setup” menu to set all of the appropriate settings for your mount (see chapter
2). If the problem persists, contact your dealer.
Note: Mountain Instruments and some Losmandy dealers set some mount
parameters such as latitude and longitude to the correct value for individual
customers before shipping the mounts. Replacing the battery resets all values,
including mount type, latitude and longitude to their default values, requiring the
user to enter the correct values for their location.
7.1.16 Gemini Displays “DEC/RA motor lags”
• This message indicates that one of the servo motors (either RA or Dec. depending
on the exact message) is not moving as smoothly as it should, typically at slow
speeds (guiding and/or tracking). It is detected when the motor is some number
of steps away from the expected position, and Gemini increases the amount of
current to the motor in order to get it to move. This may be caused by a tight spot
in the gear mesh or by a balance problem. If higher current continues to flow in
order to overcome whatever problem exists, the motor will heat up and may
eventually burn out. This message is an early warning that you should check the
motor temperature, and possibly adjust your worm mesh or the mount balance.
7.2 Debug Mode
If you have problems with the serial link to your computer or your planetarium software,
you can press one of the Hand Controller keys while powering up. Doing this will put
Gemini into "Debug Mode" and show all commands that are received from the PC in the
Information Buffer. You can scroll through this buffer with the "Show Information"
menu item. You should see the commands sent by the software (omitting numerical
values), that are ASCII characters (e.g. ":GR#:GD#"). If not, the serial link is not
operational.
The phrase "Debug Mode” is appended to the welcome message when Gemini is started
up in Debug Mode.
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