Question about Meade ETX-125EC (500 x 127mm) Telescope

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MEADE ETX 125 Motors have stopped

First the horizontal motor stopped. I turned off the system and when I restarted the horizontal was still dead but the vertical worked. I tried to restart it again and now it does not move on either axis. After inspection both motors are fine when given direct power from a 3v source. No signs of shorts on any of the boards. Trying to update Autostar now, any other ideas would be very much appreciated.

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The ETX125 is notorious for bad motor control. Weasner's Mighty ETX web site has links to repair centers that are more reasonable than Meade. They also have a QA section to assist with diagnostics.

Posted on Jul 24, 2009

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Motor tries but cannot move on the horizontal. Moves fine on the vertical. Usage only in Alt/Az mode. Only have the electronic controller that came with the scope.


You did tighten the AZ clutch? You did start from the HOME position? (turn the scope Counterclockwise to the hard stop)

Then you will either have to send it back to Meade for repairs, or open the bottom of the base, and look inside and see if the AZ worm gear is actually meshing with the motor. It could have come loose.

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

Oct 08, 2010 | Meade ETX-125EC (500 x 127mm) Telescope

1 Answer

I am trying to repair the motor drive in the fork of the 125 model, and would like to aquire a repair manual. the motor in the base runs fine, but when I pulg in the Auto Star paddle from my 6 inch...


Your problem may not be the motor?

Is this a 497 hand controller? If it is check the TELESCOPE TYPE in the controller. It should read ETX125. You cannot just switch controllers. The controller has been TRAINED for the other scope.

To switch it you must do a RESET, Calibrate motors and then train the drives. These "values" are stored inside the hand controller. If you move it to another type of Meade telescope you must RESET and do Calibrate sensors and Training again.

The dis-assembly pictures are located on the Mighty ETX web site here:
http://www.weasner.com/etx/menu.html

Aug 22, 2010 | Meade ETX-125EC (500 x 127mm) 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

1 Answer

Remote positioning motors don't work


I don't understand? Is one of the TWO motors NOT working? Do you have FRESH batteries?

If the motor is broken it will need to be returned to Meade for repairs. Here is their customer service line:
http://www.meade.com/support/index.html

Aug 17, 2010 | Meade Astro ETX-90AT Telescope

2 Answers

Bought the scope about 4 years ago. Fairly light use and not used in last 12 months. Was checking it recently and replaced batteries etc. Horizontal motor movement is fine however no vertical motor...


Do a RESET on the hand controller. Re-enter Time, Date, and SITE, and CALIBRATE motors.

Also sometimes a bad hand controller cable will cause this. You can buy another cable directly from Meade. Call them here:
http://www.meade.com/support/index.html

Aug 16, 2010 | Meade ETX-125EC (500 x 127mm) Telescope

1 Answer

Meade ETX-60 Horizontal drive


The AZ worm gear is not engaging the gears. There is a spring next to the gear which applies pressure -- open up the base and see if the spring is loose or broken.

May 23, 2010 | Meade ETX-60 AT Telescope

1 Answer

Can't focus my meade etx-125. have turned focusing control more than 80x in both directions. Is there an stop on the focusing system. Originally had the electric focusing system on the scope couldn't focus...


yup there is a mechanical stop to prevent you from cracking the mirror by retracting or extending it too far.. once you break the pin off it needs to go to the factory for dis-assembly as they have to remove the primary to get to it and realign it my 105 did same thing....word of advise use a cable extender for focus not an electric focuser they fail to tell you that it can over run the built in stops making your scope useless...i may be mistaken but i believe the max turns is 25 or about for end to end focusing adjustment on the 125

Sep 28, 2009 | Meade ETX-125EC (500 x 127mm) Telescope

1 Answer

Horizontal moter problem


This is probably not what you want to here but it most like needs to go back to Meade for repair. There website is here: http://www.meade.com/.

You may want to also check here for further support: http://www.weasner.com/etx/menu.html. Mike Weasner is quite knowledgeable about the ETX line.

Good Luck!

-jodair

Jan 30, 2009 | Meade ETX-90EC (325 x 90mm) Telescope

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

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