Setup Menu - Meade LX850 Instruction Manual

Setup Menu

There are numerous other features available within the
Setup menu, including:
Align: Lets you choose a method of alignment.
• Easy
• One Star
• Two Star
• Align on Home
• Drift Align
Telescope: Accesses several options, including:
• Telescope Model: Allows you to select the type of
OTA mounted on LX850.
• Align OTA: Provides an alignment routine that
adjusts the OTA so that it is orthogonal to the LX850
telescope mount. This routine should be run when
you have changed your collimation or mounting
tube assemblies have screws that allow you adjust
for orthogonality. If you are using an optical tube
assembly other than a Meade LX850 ACF you will
need to verify that there is a mechanical means to
correct for orthogonality before using this utility
When you select this menu, Autostar will ask you
to center two stars in the telescope that are on
opposite sides of the sky.
Once you have centered them, the telescope will
head wrench, make adjustments to the dovetail so
the star is centered in the vertical direction in the
eyepiece (perpendicular to the plane of the saddle.
Note: The vertical direction is when the 90 degree
24. The dovetail adjustments will only move the
OTA in this direction. The horizontal direction can
not be adjusted using these adjusting screws and
is compensated for during the electronic alignment
routine. When complete, verify the dovetail is still
securely attached to the OTA radius blocks.
• Max Past Meridian: Allows you to set how far
default setting.
• Focal Length: Displays the focal length of the
selected telescope.
• Max Slew Rate: Sets the upper limit for
fastest setting.
• Park Position: After aligning your telescope,
select this menu and power down the telescope.
The alignment settings—North, time, alignment
stars—are stored in Autostar II's memory and are
remembered after you power off the telescope.
When you power on the telescope, "Automatic
Alignment" displays after the start up routine. Press
MODE (do not press ENTER). The telescope
remembers its alignment and you can continue
viewing or performing other operations without
aligning the telescope again.
Park Position provides two options. Use Current
Position uses the last position set by the user.
Default Position places scope in the home position.
• Calibrate Home: For
telescopes only. After aligning your telescope,
select this menu and the alignment settings—North,
time, alignment stars—are stored in Autostar II's
memory and are remembered after you power off
the telescope. You can enable Autostar II to retrieve
and automatically align your telescope using these
the Align on Home menu. This menu helps improve
auto alignment.
• Anti-Backlash: This option allows you to change
the backlash along either the RA and the DEC
sets the backlash in the way the Arrow keys move
near 199%, telescope responds more quickly as
you hold down an Arrow key. If you enter a value
near 0%, it takes longer for the tube to respond as
option: Try changing the values until the motion of
the telescope (while holding down an Arrow key)
feels comfortable to you.
• Train Drive: All telescopes have a certain amount
of "backlash" (looseness in the interplay of gears).
This menu allows you to compensate for the
backlash in the RA and DEC motors—which helps
locate objects with more precision.
permanently mounted
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