Meade LXD75 instruction manual $ Computer Control Panel see e

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Caution When loosening the Dec. lock, be sure to support the optical tube (18, Fig. 1a). The weight of the tube could cause the tube to swing suddenly.

2* Want to learn more about setting the lati- tude dials?

See STEP 6, page 12.

1% Viewfinder Bracket Screws: Tighten to a firm feel to hold viewfinder securely in place (see E and h). See page 12 for more information.

1^ Focus Lock Knob: Designed to prevent the focuser drawtube from moving when a heavy accessory, such as a camera, is attached to the focuser assembly. For normal observing with an eyepiece and diagonal, it is not necessary to use the lock knob.

1& Declination (Dec.): Controls the manual movement of the telescope. Turning the Dec. lock counterclockwise unlocks the telescope enabling it to be freely rotated by hand about the Dec. axis. Turning the Dec. lock clockwise (to a firm feel only) tightens the lock and prevents the telescope from being moved manually, but engages the Dec. motor drive (see 3$) for Autostar operation.

1* Polar Viewfinder Cap: Remove this cap when using the polar viewfinder (see 2().

1( Dec. Setting Circle: See APPENDIX A, page 50, for more information.

2) Counterweight Shaft Base: Thread, along with the shaft, to the mount. See page 11 for more information.

2! Counterweight and Counterweight Lock Knob: Counterbalances the weight of the optical tube, and adds stability to the mount. Tighten the lock knob on the side of the counterweight to a firm feel to prevent the weight from sliding on the shaft.

2@ Counterweight Shaft: Slide the counterweight onto this shaft (see 2!).

2# Counterweight Safety Cap: Prevents the counterweight from accidentally slip- ping off the end of the counterweight shaft.

2$ Computer Control Panel (see Fig. 1e):

A. Handbox (HBX) Port: Plug the Autostar or EC handbox coil cord (10, Fig. 2) into this port.

B. 12v DC Power Connector: Plug the battery pack into this connector. The telescope assembly also may be powered from either a 12v DC auto cigarette lighter plug using the optional #607 Cigarette Lighter Adapter or from a standard 115v AC home outlet using the optional #547 Power Adapter with Cable or #547F Power Adapter for 220v out- lets. See OPTIONAL ACCESSORIES, page 38.

C. LED: Illuminates when power is supplied to the Autostar or EC hand- box and the telescope’s motor drive.

D. ON/OFF Switch: Turns the Computer Control Panel and Autostar ON or OFF.

E.AUX Port: Provides connection for current and future Meade accessories. See OPTIONAL ACCESSORIES, page 38.

F.Dec Port: Plug the coil cord from the Dec. motor assembly into this port for Autostar to control the motor drive.

2% Right Ascension (R.A.) Motor Drive Assembly: Controlled by Autostar or EC handbox. Moves the optical tube along the R.A. axis. The R.A. Lock (see 3#) must be tightened to a firm feel in order for the R.A. motor to operate.

2^ Latitude Adjustment T-Handles (2): Sets the latitude of your observing location. The two T-handle screws work in a "push - pull" operation—as you tighten one, loosen the other.

2& Fine Azimuth Control Knobs: Fine tune the side-to-side movement of the tele- scope when centering Polaris in the telescope eyepiece or when using the polar alignment viewfinder (see 2().

2* Latitude Dial: Set the latitude of the observing site on this dial using the latitude T-handle screws. For more information see Step 6, page 12.

2( Polar Alignment Viewfinder: Allows you to precisely polar align the telescope. Useful when performing astrophotography. See page 52.

3) Polar Alignment Viewfinder Reticle and LED Knob: Rotate the knob to switch on or off the LED that illuminates the reticle within the polar alignment finder. Be 7

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Contents LXD 75 -Series Telescopes Page Contents BC1 g f e Telescope FeaturesD E F LXD75-SeriesYour Personal Window to the Universe $ Computer Control Panel see e LXD75 Tips Features Autostar FeaturesTour the Cosmos with Just the Push of a Button Tip Getting Started How to Assemble Your TelescopeTelescope Assembly AccessoriesViewfinder assembly Newtonian reflector models Balancing the Telescope C D E FChoosing an Eyepiece Aligning the ViewfinderObserving by Moving the Telescope Manually Too Much Power?Slew Speeds Autostar Models Only Activate the Arrow Keys Autostar Models Only16b Setting the Polar Home PositionObserve the Moon Tracking ObjectsUsing Autostars GO to Capabilities Autostar Models Only Observe a Star using the Automatic Tracking FeatureInitializing Autostar Autostar Models Only Moving Through Autostar’s Menus Autostar Models OnlyTraining the Drive Autostar Models Only Go To Saturn Autostar Models Only Easy Alignment Autostar Models OnlyPlanet Saturn is over 800 million miles from the Earth Using the Guided Tour Autostar Models OnlyTo Calculate Sunset time Autostar Navigation ExerciseNavigating Autostar Entering Data into AutostarSelect Item Object Autostars MenusObject Menu MenusLXD75-Series Event MenuGlossary Menu Utilities MenuEnter Setup MenuObserving Considerations Setup Menu Daylight SAVING, Surf the Web To Add a Site to the user-defined site list Adding Observing SitesTo Edit a Site To GO to a user-entered object Using Autostar to Find Objects Not in the LibrariesLandmarks Observing SatellitesTo Add a landmark to the database To Select a landmark from the database To Check on the Available MemoryTo perform a Landmark Survey Few tips on photography with the LXD75-Seriestelescopes PhotographyPhotography with Meade’s Autostar Suite 10 f/4 Optional AccessoriesSeries 4000 Photo-Visual Optional Autostar handbox for EC model users General Maintenance MaintenanceD e f g Page Defocused star images. Misaligned 1, 2, Aligned Page Page 5 Model SN-6AT, SN-6EC Specifications Specifications4 Model SN-8AT, SN-8EC Specifications 9.3 Model AR-5AT, AR-5EC Specifications 10 f/4 Model SN-10AT Specifications8 Model AR-6AT Specifications 5 Model N-6EC Specifications 10 Model SC-8AT SpecificationsInspecting the Optics Autostar SpecificationsAutostar Dimensions Meade Customer ServiceAppendix a Celestial Coordinates Setting CirclesTwo-Star Polar Alignment Locating the Celestial PolePolar Alignment One-Star Polar AlignmentTo perform the Three-Star Alignment Method #1 Three-Star Alignment Using AutostarPolar Alignment Viewfinder Enhancement MethodsProcedure #1 To correct for attitude misalignment Method 2 Axis Alignment ProceduresPosition a Procedure #2 To correct for elevation misalignmentTips Method 3 Axis Alignment Using AutostarPEC Erase Menu Option Method #4 Smart Drive Training Periodic Error CorrectionPEC Update Menu Option PEC Train Menu OptionCity Country Latitude Appendix C Latitude ChartLatitude Chart for Major Cities of the World City State/Prov./Country LatitudeAppendix D EC Handbox Modes of Operation To move the telescope using the Electronic ControllerSlew Speeds Tracking Rates Optional Autostar Computer Controller for LXD75 EC Users Changing the Polar ModeMounting the SC bracket and optical tube to the mount How to Attach the Optical Tube to the MountMoon Appendix F Basic AstronomyAutostar Glossary Objects in SpaceDeep-Sky Objects PlanetsFurther Study Page Meade Limited Warranty

LXD75 specifications

The Meade LXD75 series represents a remarkable range of telescopes designed for both amateur astronomers and advanced users seeking high-quality performance at an affordable price. Known for its robust construction and innovative technology, the LXD75 aims to provide a user-friendly experience while catering to the demands of stargazers looking for sophistication in their equipment.

One of the main features of the LXD75 is its advanced German equatorial mount, which provides exceptional stability and tracking accuracy. This mount is equipped with dual-axis servo motors facilitating smooth movements, making it easy to locate and follow celestial objects. The LXD75 also includes a built-in autostar system featuring a database of over 30,000 celestial objects, allowing users to effortlessly navigate the night sky with a push of a button.

The LXD75 series includes several models, each with different optical configurations to suit the preferences of various users. The telescopes come with either an achromatic refractor or Schmidt-Cassegrain optical design, providing clear and bright images. The Schmidt-Cassegrain models offer a compact design with a fast focal ratio, making them excellent for both astrophotography and visual observation.

In terms of build, the Meade LXD75 features high-quality optics with multi-coated lenses, reducing glare and enhancing light transmission. This results in sharper and brighter images, making it easier to observe delicate details on planets, the moon, and deep-sky objects. The telescope tubes are crafted from durable materials, ensuring longevity and resilience against the elements.

Another characteristic worth noting is the ease of setup and operation. The LXD75 mount comes equipped with adjustable legs and can be easily assembled, requiring minimal tools. The intuitive control system also features a user-friendly interface, allowing both novices and experienced astronomers to operate the telescope with confidence.

For astrophotography enthusiasts, the LXD75 provides excellent support, with a wide range of accessories available to enhance imaging capabilities. The mount can accommodate various cameras, providing flexibility for capturing stunning astronomical photographs.

In summary, the Meade LXD75 series delivers a robust combination of features, technologies, and characteristics designed to meet the needs of both amateur and advanced astronomers. With its reliable mount, quality optics, and ease of use, the LXD75 ensures that stargazers can enjoy the wonders of the universe with clarity and precision.
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