Meade DS-90 Instruction Manual download pdf (Page 39)

Fig. 33: Electronic Controller. (1) Arrow Keys; (2) Indicator

Lights; (3) SPEED Key; (4) Coil Cord; (5) MODE Key; (6) OUT

Key; (7) IN Key.

Fast

Medium

Moder

ate

Slo

APPENDIX G

Electronic Controller (DS-2000EC Users Only)

DS-2000 "EC" models come equipped with an Electronic Controller handbox, rather than the

Autostar Handbox. The Electronic Controller provides you with the means to control the telescope

motors from a compact handbox. The Electronic Controller (Fig. 33) has soft-touch keys designed to

have a positive feel, even through gloves.

Functions of the Electronic Controller include:

W Slewing (moving) the telescope's optical tube assembly to an object.

W When used with the optional #1240 Electric Focuser, moves the focus of the eyepiece. See the

#1240 Electric Focuser Instruction Sheet for more information.

1 Arrow Keys (1, Fig. 33): Press one of the four Arrow keys to slew the telescope (i.e., up, down,

left, and right) at any one of four slew speeds (see

SPEED KEY below).

Important Note: If you reverse directions while using the Arrow keys to slew to objects,

there may be a slight pause as the telescope motors compensate for the reversal of the

internal gears.

2 Indicator Lights (2, Fig. 33): The four red LED (Light Emitting Diode) lights indicate the current

slew speed of the telescope.

3 SPEED Key (3, Fig. 33): Press the SPEED key to change the speed at which the telescope

slews to an object. Each press of the SPEED key changes the slew speed to the next

slower

setting. If the controller is already on the slowest slew speed (light 4), pressing the SPEED key

cycles back to the highest speed (light 1). Slew speeds are signified by the indicator lights

(2,

Fig. 33

4 Coil Cord: Plug into the HBX connector of the Computer Control Panel.

5 MODE Key (5, Fig. 33): Not used with the DS-2000 telescopes.

6 OUT

(6,

Fig.

When using the optional #1240 Electr

ic F

ocuser (see

OPTIONAL

CCES

SORIES

, page 28), press the OUT key to move the focus point outward.

7 IN K

(7,

Fig.

When using the optional #1240 Electr

ic F

ocuser (see

OPTIONAL

CCES

SORIES

, page 28), press the IN key to move the focus point inward.

elescope Mounting

A mount allo

ws a telescope to mo

ve on its axes. All DS-2000 telescopes use an Altazimuth mount-

ing. The Electronic Controller is factory pre-set to the Alt/Az mode.

Altazim

uth (Alt/Az) mounting

per

mits mo

ement of the telescope tube in v

ertical (altitude) and hor-

izontal (azimuth) directions, and is ideal for terrestrial applications and for casual astronomical obser-

vation. The Electronic Controller Arrow keys permit pushbutton movements (slewing) of the tele-

scope. To manually track objects with the telescope in the Altazimuth configuration, press the Arrow

keys of the Electronic Controller as necessary to keep an object centered.

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Meade DS-90 Instruction Manual Page 39

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