Meade ETX-90EC instruction manual Guide, Slew Speed

4

QUICK-	1
START		A
GUIDE		B

Remove the ETX from its packaging and place it on a sturdy surface. Place the eyepiece (A) and viewfinder

(B)into their appropriate positions on the telescope and tighten the appropriate attachment screws to a firm feel only.

2

C

D

Securely place the ETX on its side and remove the battery compartment cover (C) from the underside of the drive base. Insert eight (user-supplied) AA-size batteries into the battery compartment (D) in the proper orientation. Replace the cover and return the telescope to an upright position.

3	NOTE:The
	telescope has
	rotational hard
	stops in the
F	horizontal and
	vertical axes to
	prevent damage to
	the telescope. See
	Quick Tips, page 6,
G	for more
E	information.

Verify that the computer control panel power switch (E) is in the OFF position. Remove the Electronic Controller (F) from the packing materials and plug it into the HBX port (G). Tighten the vertical and horizontal locks (6 and 10, Fig. 1), then remove the dust cover from the end of the telescope tube.

4

G E

Flip the Power Switch (E) on the computer control panel to the ON position. The lights flicker on the Electronic Controller. Press any key and the motors briefly move the telescope. The Electronic Controller is now operational.

5

H

Slew Speed:

Fast

Medium

Moderate

Slow

I

Use the arrow keys (H) of the Electronic Controller to move the telescope up and down and/or left and right. To change the telescope’s slew speed, press the SPEED key (I). The indicator lights signify the speed, with the upper light showing the highest speed. Each press slows the speed down one level, then cycles back to the highest speed.

NOTE: Before

6observing, verify that the flip-mirror control (16, Fig. 1) is in the “up” position. See Flip-Mirror Control, page 6, for more information.

Sight along the side of the telescope’s main tube to locate an object. Practice using the arrow keys on the Electronic Controller to center an object in the telescope’s field of view. Use the telescope’s focus knob (9, Fig. 1) to bring the object into focus.