Cassiopeia Observatory logo


Last updated: 12 April 2012

This page is for user comments and information specific to the Meade ETX-90RA (originally known as the "ETX Astro"). Comments on accessories and feedback items appropriate to other ETX, DSX, and DS models are posted on other pages. If you have any comments, suggestions, questions or answers to questions posed here, e-mail them to me for posting. Please use an appropriate Subject Line on your message per the Site Email Etiquette. Thanks. Remember, tips described on this site may invalidate the warranty on your telescope or accessories. Neither the submitter nor myself are responsible for any damage caused by using any contributed tips.

Subject:	ETX Astro OTA repair
Sent:	Monday, April 9, 2012 09:36:13
From:	Doug Moench (
I was just informed by Meade that they no longer offer repair service
for my circa 1996 ETX 90mm, which is now referred to as the "Astro" I
gather. I am wondering if you or your users know anyone who might repair
the OTA which has a slipped secondary mirror. Meade suggested it might
have been heat that caused the glue to melt when it was stored.

Since it is so old, I thought I might try to get in there myself and
move the secondary back to where it belongs. Otherwise, it is just junk,
though the drive assembly still works.

Any suggestions or thoughts would be appreciated.

--Doug Moench

Fort Collins, CO
Mike here: If you want to attempt it yourself, see the articles "ETX-90RA Secondary Baffle Fix" and "Re-attaching the Baffle" on the Helpful Information: Telescope Tech Tips page. If you don't feel up to it, you can try Dr. Clay Sherrod for his SuperCharge service: I don't know if he does the secondary fix or not.

Feedback Archive

Check the Feedback Archive for previous editions of the User Feedback pages.

Go to the ETX Home Page.

Copyright © 2012 Michael L. Weasner /
Submittals Copyright © 2012 by the Submitter