Meade ETX-90EC manuals
Lawn and Garden > Telescope
When we buy new device such as Meade ETX-90EC we often through away most of the documentation but the warranty.
Very often issues with Meade ETX-90EC begin only after the warranty period ends and you may want to find how to repair it or just do some service work.
Even oftener it is hard to remember what does each function in Telescope Meade ETX-90EC is responsible for and what options to choose for expected result.
Fortunately you can find all manuals for Telescope on our side using links below.
Meade ETX-90EC Instruction Manual
28 pages 837.93 Kb
3 CONTENTS WARNING!4 13 6 4QUICK-START GUIDE 5 2 INTRODUCTION The Electronic Controller Parts List Assembly Instructions 5 Chapter 1: GETTING STARTED6 12 3 4 QuickTips Telescope Controls Computer Control Panel Electronic Controller Functions 7 First ObservationsObserving with the Electronic Controller 8 THE VIEWFINDERFocusing the Viewfinder Aligning the Viewfinder Using the Viewfinder 8GETTING STARTED 9 zINTRODUCTION Choosing an Eyepiece Understanding Magnification Telescope Mountings 10 10 TELESCOPE FUNDAMENTALSTerrestrial Observing Astronomical ObservingSidereal Rate Slew Speeds Fig. 11: Equatorial mounting aligns the telescope with the celestial sphere. 11 zTHE ELECTRONIC CONTROLLER Modes of OperationUsing the Mode Screws Electronic Controller Modes 12 Chapter 3: POLAR ALIGNMENT 12 3Celestial Coordinates Locating the Celestial Pole Polar Alignment Procedure 13 POLAR ALIGNMENT14 420 6Object appears in the viewfinder but not in the eyepiece: Telescope does not track a celestial object: Images through the eyepiece appear unfocused or distorted: Telescope moves off a terrestrial object while observing: Telescope does not move past a certain point: Telescope pauses when changing slew direction: A terrestrial object appears reversed left-for-right: Meade Customer Service 21 TELESCOPE SPECIFICATIONSSpecifications: ETX-90EC Astro Telescope ETX-125EC Astro TelescopeTelescope dimensions: . . . . . . . . . . 48cm x 23cm x 27cm (19 x 8.9 x 10.8) 22 Appendix A:TRACKING MOTOR SPEED 22 A23 BAppendix B: HELPFUL CHARTSLatitude Chart for Major Cities of the World Star Locator 24 Appendix C: PRECISE POLAR ALIGNMENT; SETTING CIRCLES 24 C25 DAppendix D: ROADMAP TO THE STARS 26 E
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