Question about Meade ETX-90 (48x90 mm)

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Meade etx-80 sticking

My telescope has started sticking when slewing left,it stops and makes a clicking noise,can you help

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Some (not all) versions have an end stop - it it just reaching that? The scope will rotate only aboit 3 complete turns between the 2 ends.

The 'correct' starting position is as follows: Place scope on tripod or table with control panel at the West. Unlock the declination lock (horizontal slew). Rotate scope anticlockwise until it hits the end stop, Then roate it back clockwise until scope is pointing North (should be about 3/8 of a turn, as the end stop is at South West). Then lock the declination, Set the tube horizontal and continue with the alignment process.

Autostar always thinks you have set the position like that. If you haven't, it will work OK until it tries to rotate past the point it won't go, then chaos results!

Posted on Aug 15, 2009

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1 Answer

I have an ETX 80 and the motor runs but does not raise the tube, it lowers it and it slews left/right. Any ideas as to the problem. Many thanks in advance!!!


Is the clutch knob tight? If it is then something is broken inside the DEC clutch, causing it to slip.

Meade can repair these -- call customer service:

http://www.meade.com/support/index.html

Feb 21, 2011 | Meade ETX-80AT (240 x 80mm) Telescope

1 Answer

I have a Meade ETX 80AT telescope that only slews left or right intermittently. Is there any way that I can get into the base for a closer look as to why this is happening. many thanks


Yes under the rubber feet on the bottom are three screws -- take them out and you can get into the bottom. peel of the rubber feet to expose the screws.

Jan 09, 2011 | Meade ETX-80AT (240 x 80mm) Telescope

1 Answer

My telescope is only slewing at the max speed. as soon as i change it to another speed it will now slew??


Either the buttons are STICKING on your hand controller, or the hand controller cable is defective.

Contact Meade customer service:
http://www.meade.com/support/index.html

Aug 30, 2010 | Meade ETX-60 AT Telescope

1 Answer

First time using the mead etx 60at. I turned it on and set the date / time / enter. Then set it at north and horizontal,enter. It asked if i wanted the easy alignment, I said yes. I said searching. Then it...


Did you lock down BOTH clutches?

You should have Calibrated motors and trained drives before you actually tried to do a goto.

Read this manual completely:
http://www.meade.com/manuals/TelescopeManuals/ETXtelescopes/ETX-60-70AT%20manual.pdf

Aug 21, 2010 | Meade ETX-70 (240 x 70mm) Telescope

2 Answers

My MEADE etx 105 telescope remote wont turn on but my telescope will. Can you tell me what my problem is please.


Could be just a bad hand controller cable. Check with Meade for a new one.

www.meade.com

Sep 24, 2009 | Meade Optics

1 Answer

MotorFault


Hi
In response to your email the whole unit is being returned to supplier motor problem is manufacturers electrical fault the meade etx-125pe should have motor limiters fitted which stops the scope slewing more than two revolutions in any direction to stop potential wiring damage this unit does not have them or they are faulty hence motor fault.

Jan 18, 2009 | Meade ETX-125PE (500 x 127mm) Telescope

1 Answer

Azimuth motor gearing problem


Sounds like it could be that the worm gear is not meshing
Look here for guidelines in the internals

Oct 15, 2008 | Meade ETX-125EC (500 x 127mm) Telescope

1 Answer

Slew problem


You did tighten the DEC knob? If you did the altitude gears (a worm gear) is not engaing properly. You can either return it to Meade for repairs or attempt them yourself.

I would also check that you have fresh batteries and that the UP button on the hand controller is not broken.

Dec 28, 2007 | Meade ETX-70 (240 x 70mm) Telescope

1 Answer

Trouble shooting


my Meade ETX-125 makes a grinding noise when I try to slew to the left and will not move. Any suggestions will be appreciated. Bill

Aug 30, 2007 | Meade ETX-125EC (500 x 127mm) Telescope

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