User guide

c. Lock the OTA in place using the four 3/8"-16x3/4" bolts. Thread up the four bolts
into the bottom of the Dec. castings, two on each side. Using the supplied hex key,
tighten to a firm feel only (Fig. 55).
Attaching the Power and Data Cords
Several power and data cords are supplied with the 16"
LX200-ACF
. These should all
be attached before powering up the telescope.
a. Confirm that the power switch (Pg. 65, Fig. 45, A) on the power panel is in the OFF
position. Connect the power adapter to the 18vDC connector (Fig. 45, B).
b. 2 short cords (8" long) with DB-9 connectors are supplied to provide power to the
Dec. system, the GPS, and the level sensor. Plug into the two DB-9 connectors
located at the top of the sides of the fork and the Dec. casting (Fig. 56).
c. Connect the AutoStar II handbox to the HBX connector (Fig. 45, F) on the
control panel.
d. Connect the supplied coil cord from the fan to the 12vDC output jack (Fig. 45, E)
on the control panel.
Observing Considerations
• Try to pick an observing site away from street and house lights and car
headlights. While this is not always possible, the darker the site, the better.
• Give your eyes about ten minutes to adjust to the darkness before observing.
Give your eyes a rest from observing every ten or fifteen minutes to relieve
eyestrain.
• Try not to use a standard flashlight. Experienced observers use red LED
flashlights, the red utility light on the AutoStar II handbox, or tape red
cellophane over their flashlights to use for setup and map reading so they don’t
have to continually readjust their eyes to the darkness. Be careful not to shine
bright lights if there are other observers in the area. Do not shine a flashlight
into the telescope while someone is observing!
• Dress warmly. It gets chilly when you’re sitting for prolonged periods.
• Practice setting up your equipment during the day or in a lighted area to
become familiar with it before going to a dark site.
• Use your 26mm eyepiece to view terrestrial objects and wider areas of space,
such as open star clusters. Use optional higher power eyepieces, such as a
9mm eyepiece (see
OPTIONAL ACCESSORIES
, page 44 for more details), when
you wish to view something up close, such as craters on the Moon or the rings
of Saturn.
LX200-ACF TIPS
- 68 -
Fig. 56: Plug in the DB-9 connectors
to provide power from the Dec. motor
to the fork arms.
Fig. 55: Tighten the fork arm
assembly using the provided hex key.
Fig. 54: Position the holes over the
shoulder bolts. When they are in
place, slide the OTA back so that the
shoulder bolts lock into the slots.