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Celestron 80LCM - Hand Control Menu; Scope Setup Menu; Setup Time-Site; Anti-backlash

Celestron 80LCM
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VIEW TIME-SITE
View Time-Site will display the last saved time and longitude/latitude entered in the hand control.
HAND CONTROL MENU
Lights Control
This menu option lets you adjust the brightness of the lighting on the hand control lights.
Keypad Level- Adjusts the brightens of the backlight on the keypad buttons.
Display Level- Adjusts the brightness of the backlight on the LCD panel.
Scrolling Menu
This menu allows you to change the rate of speed that the text scrolls across the hand control display.
• Press the UP (Keypad #6) button to increase the speed of the text.
Press the DOWN (Keypad #9n) button to decrease the speed of the text.
Toggle Bold Font
This allows you to change the text on the LCD to bold face which can make it easier to read.
Set Contrast
This allows you to choose how dark the text appears on the LCD panel.
Set Language
This allows you to choose the native language of the hand control. Press the number corresponding to the language you desire.
SCOPE SETUP MENU
Setup Time-Site
Allows the user to customize the hand control display by changing time and location parameters (such as time zone and daylight savings).
Anti-backlash
All mechanical gears have a certain amount of backlash or play between the gears. This play is evident by how long it takes for a star to move in
the eyepiece when the hand control arrow buttons are pressed (especially when changing directions). The LCM’s anti-backlash features allows
the user to compensate for backlash by inputting a value which quickly rewinds the motors just enough to eliminate the play between gears.
The amount of compensation needed depends on the slewing rate selected; the slower the slewing rate the longer it will take for the star to
appear to move in the eyepiece. Therefore, the anti-backlash compensation will have to be set higher. You will need to experiment with different
values; a value between 20 and 50 is usually best for most visual observing, whereas a higher value may be necessary for photographic guiding.
Positive backlash compensation is applied when the mount changes its direction of movement from backwards to forwards. Similarly, negative
backlash compensation is applied when the mount changes its direction of movement from forwards to backwards. When tracking is enabled,
the mount will be moving in one or both axes in either the positive or negative direction, so backlash compensation will always be applied when
a direction button is released and the direction moved is opposite to the direction of travel.
To set the anti-backlash value, scroll down to the anti-backlash option and press ENTER. Enter a value from 0-100 for both azimuth and altitude
directions and press ENTER after each one to save these values. The LCM will remember these values and use them each time it is turned on
until they are changed.
ENGLISH I 21

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