Meade ETX-105EC, ETX-125EC Flip mirror control in the up position, Computer Control Panel

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Fig. 2a: Flip mirror control in the “up” position.

Fig. 2b: Flip mirror control in the “down” position.

Computer Control Panel

A.ON/OFF Switch - Turns the Computer Control Panel and Electronic Controller 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, such as the Meade “AstroFinder Software with #505 Cable Connector Kit,” which allows you to control your ETX from a PC. See OPTIONAL ACCESSORIES, page 20.

C.Handbox (HBX) Port - Plug the Electronic Controller or the optional #497 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 20). 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.

Base Housing - Supports the telescope for placement on a flat, level surface, such as a tabletop or optional tripod. See OPTIONAL ACCESSORIES, page 20.

Holes for Optional Tripod - See your tripod’s instruction sheet for mounting information.

Right Ascension (R.A.) Setting Circle - See page 28 for detailed information.

Flip-Mirror and Flip-Mirror Control Knobs - ETX telescopes include an internal mirror. With the flip- mirror control in the “up” position, as shown inFig. 2a, light is diverted to the eyepiece. With the flip- mirror control in the “down” position, as shown inFig. 2b, light proceeds straight out the photo port for photography. See PHOTOGRAPHY, page 18.

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.

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 20.

Declination (Dec.) Setting Circle (on left fork arm) - See page 28 for detailed information. Viewfinder Alignment Screws -Adjust these screws to align the viewfinder. See pages 9 through 11

for more information.

Viewfinder Alignment Bracket -Attach the viewfinder to this bracket. See pages 9 through 11 for

more information.

Dust Cap - Unthread the dust cap counterclockwise from the front lens of the telescope.

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.

Battery Compartment (not shown, underneath base) - Install eight user-supplied AA batteries in this

compartment. See page 9 for more information.

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Contents Meade Instruments Corporation Page Contents Slew Speed QUICK-START GuideETX-90EC Astro Telescope Telescope and Electronic Controller FunctionsTelescope Controls ETX Your Personal Window to the UniverseViewfinder Computer Control Panel Flip mirror control in the up positionElectronic Controller Functions Indicator Light KeyLight Blinking Off Getting Started ETX-90EC 8 x 21mm Erect-Image Viewfinder Using The ViewfinderFocusing the Viewfinder Aligning the ViewfinderChoosing an Eyepiece Observation TechniquesAlignment Terrestrial Observing Telescope Focal Length Power = Eyepiece Focal Length1900mm Power = = 26mm Understanding MagnificationSlew Speeds Astronomical ObservingSidereal Rate Electronic ControllerModes of Operation Alt/Az ModeTelescope Mountings To move the telescope using the Electronic Controller Polar ModeYou use Polar or Equatorial mounting. By Celestial Coordinates Polar Alignment ProcedureLocating the Celestial Pole High-Latitude Tripod Leg ETX-105EC, ETX-125EC Standard Tripod Leg ETX-90ECHigh-Latitude Tripod Leg ETX-90EC Standard Tripod Leg ETX-105EC, ETX-125ECETX-90EC PhotographyFew Tips on Photography Example of a format 1 photoETX-105EC ETX-125EC Eyepiece Optional AccessoriesPower Power 2x Barlow#825 Right- Angle Viewfinder Storage and Transport General MaintenanceInspecting the Optics TroubleshootingTelescope moves off a terrestrial object while observing Meade Customer ServiceSpecifications ETX-105EC Astro Telescope Specifications ETX-90EC Astro TelescopeSpecifications ETX-125EC Astro Telescope Northern Hemisphere Polar Changing Modes Using the Electronic ControllerAppendix a Advanced Electronic Controller Functions Tracking Motor SpeedsAppendix B Helpful Charts Setting Circles Appendix C Precise Polar Alignment Setting CirclesPlanets Appendix D YOU and the UniverseAutostar Glossary MoonPleiades is one of the most beautiful open clusters Deep-Sky ObjectsMeade Limited Warranty Meade Instruments Corporation
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