Bedienungsanleitung Meade ETX-105AT (Seite 8 von 60) (Englisch)

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j Horizontal Lock: Controls the manual horizontal rotation of the telescope. Loosen

the horizontal lock counterclockwise to unlock the telescope, enabling it to be freely

rotated by hand about the horizontal axis. Tightening the horizontal lock clockwise

prevents the telescope from being rotated manually, but engages the horizontal

motor drive clutch for Autostar operation. When polar aligned, the horizontal lock

serves as the Right Ascension or R.A. lock.

1) Computer Control Panel (see Fig. 2)

A. ON/OFF Switch

: Turns the Computer Control Panel and Autostar

handbox ON or OFF.

Note: Always remove the batteries if they are not to be used for a long

period of time.

B. Auxiliary (AUX) Ports (2): Provide connection for current and future

Meade accessories. See

OPTIONAL ACCESSORIES

, page 43.

C. Handbox (HBX) Port: Plug the Autostar handbox into this port.

D. 12v: The 12v connector is designed to accept an external power

supply such as the optional #541 AC Adapter or the #607 Power Cord

(see OPTIONAL ACCESSORIES, page 43). When one of the external

power supply options is used, the internal batteries are disconnected

from the power circuit.

E. LED: The red power indicator light illuminates when power is supplied

to the connected handbox and to the telescope’s motor drive.

1! Base Housing: Supports the telescope for placement on a flat, level surface,

such as a tabletop or tripod.

1@ Battery Compartment (not shown, underneath base): Install eight

user-supplied AA batteries in this compartment. See page 12 for more

information.

1# Right Ascension (R.A.) Setting Circle: See page 54 for detailed information.

1$ Flip-Mirror and Flip-Mirror Control Knobs: ETX telescopes include an internal

mirror. With the flip-mirror control in the “up” position, as shown in

Fig. 3a, light is

diverted to the eyepiece. With the flip-mirror control in the “down” position, as

shown in Fig. 3b, light proceeds straight out the photo port for photography. See

PHOTOGRAPHY, page 40.

Note: The flip-mirror control is in the “up” position when the control is

vertical (perpendicular to the telescope tube).To place the flip-mirror in the

“down” position, turn the control until it is horizontal.

1% Photo Port: Attach any 35mm camera with a removable lens to this port using an

optional #64ST T-Adapter or attach the #932 Erecting Prism for correctly

oriented images through the eyepiece. See

OPTIONAL ACCESSORIES, page 43.

1^ Declination (Dec.) Setting Circle (on left fork arm): See page 54 for detailed

information.

1& Viewfinder Alignment Screws: Adjust these screws to align the viewfinder. See

pages 13 and 14 for more information.

1* Viewfinder Alignment Bracket: Attach the viewfinder to this bracket. See pages

13 and 14 for more information.

1( Dust Cap: Unthread the dust cap counterclockwise from the front lens of the

telescope.

1* Want to learn more about

attaching and aligning

the viewfinder?

See pages 13 and 14.

Definitions

Throughout this manual,

you will notice the terms

"Alt/Az," "Right

Ascension," and

Declination." Alt/Az or

more properly, altazimuth,

is frequently used to refer to

altitude or Declination (the

up-and-down vertical

movement of the telescope)

and

azimuth or Right

Ascension (the side-to-side

horizontal movement of the

telescope). Right Ascension

is abbreviated as "

R.A."

and Declination as "Dec."

Fig. 3a: Flip mirror control in

the “up” position.

Fig. 3b: Flip mirror control in

the “down” position.

1( Note: The dust cap

should be replaced

after each observing

session and the

power turned off to

the telescope. Verify

that any dew that

might have collected

during the observing

session has

evaporated prior to

replacing the dust

cap. Do not

overtighten.

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