Meade DS-2090 Instruction Manual page 10

DEFINITION:
Throughout this
manual, you will notice
the term "Alt/Az." Alt/Az
(short for altazimuth)
just means that your
telescope moves up
and down and from
side to side. Alt/Az is
one of many methods
used by amateur
astronomers to locate
celestial objects.
Fasten
wingnuts
Fig. 3 Attach Tray to the tri-
pod: Thread the wingnuts to
the bolts (bottom view).
Fig. 4: Secure the tripod:
turn the tripod lock knob.
Fig. 5: Attach the mounting
arm to the tripod base.
telescope is slewing, the operation may be aborted at any time by pressing any key except
GO TO. Pressing GO TO again resumes the slew to the object.
The GO TO key also allows you to perform a "spiral search." A spiral search is useful dur-
ing alignment after the telescope slews to an alignment star, but the star is not visible in
the eyepiece when the telescope finishes its search. Press GO TO when the slew is fin-
ished and the telescope starts slewing in a spiral pattern at a very slow speed around the
search area. Look through the eyepiece and when the object does become visible, press
MODE to stop the spiral search. Then use the Arrow keys to center the object.
Arrow Keys - Move the telescope in a specific direction (up, down, left, and right), at any
one of nine different speeds. Speed selection is explained in
following operations are also available with the Arrow keys:
• Data Entry - Use the Up and Down Arrow keys to scroll through the letters of the
alphabet and numerical digits. The Down Arrow key starts with the letter "A" and
the Up Arrow key starts with the digit "9." The Left and Right Arrow keys are used
to move the cursor left and right across the LCD display.
• Alt/Az Alignment - Use the Up and Down Arrow keys to move the telescope ver-
tically up and down. The Left Arrow key moves the telescope horizontally coun-
terclockwise, while the Right Arrow key moves it clockwise.
,
Scroll Keys - Allows you to scroll through menu options. The menu is displayed on the
top line of the screen and the options within the menu are displayed, one at a time, on the
second line. Press and hold a Scroll key to move quickly through the options.
The Scroll keys also scroll through the letters of the alphabet and numerical digits.
NOTE: The Scroll Down key and the Down Arrow key move forward through the
alphabet & digits (A to Z, 0 to 9). The Scroll Up key and the Up Arrow key move
backward (Z to A, 9 to 0). Common symbols are also available in the list.
Tip: When a message is scrolling across the display, press and hold the Up Scroll
key to increase the scrolling speed or press and hold the Down Scroll key to
decrease the scrolling speed.
Speed/? Key - Pressing the Speed/? key cycles through the nine slew speeds that move
the telescope. Each time the Speed/? key is pressed briefly, the current slew speed is
shown for about two seconds on the display. See
The Speed/? key also accesses the "Help" file. "Help" provides on-screen information on
how to accomplish whatever task is currently active.
NOTE: Pressing the Speed/? key very briefly changes the slew speed. Holding
down the Speed/? key longer (one to two seconds) accesses the Help function.
If you have a question about an Autostar operation, e.g., INITIALIZATION, ALIGNMENT,
etc., hold down the Speed/? key and follow the directions that scroll on the second line of
the LCD screen.
When a word appears in [brackets], press ENTER to access the Autostar Glossary. A def-
inition or more detailed information is displayed. Press MODE to return to the scrolling
Autostar Help display.
When satisfied with the Help provided, press MODE to return to the original screen and
continue with the chosen procedure.
Coil Cord (not shown) - Plug the Autostar coil cord into the HBX port (A, Fig. 1c) of the
telescope computer control panel.
SLEW SPEEDS
10
, page 15. The
SLEW SPEEDS
, page 15.