Last updated: 12 December 2008

This page is for user comments and information specific to the Meade ETX-90RA (originally known as the "ETX Astro"), the ETX-90EC, and the ETX-90AT. Comments on accessories and feedback items appropriate to other ETX 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 and I'll post them. Please use an appropriate Subject Line on your message. Thanks.

Subject:	Re: ETX Service Manual
Sent:	Tuesday, December 9, 2008 10:22:31
From:	Brian Jones (
The Dec Setting Circle Scale is not rotating with the OTA, it stays in
the same position if the OTA is raised or lowered.

I wondered if it would be easy to sort out (it doesn't affect the
performance of the scope at all) and removed the four hex-headed bolts
in the black plastic at the rear of the OTA (2 each on the left and
right sides), hoping that the OTA would then slide out of the fork mount
but I couldn't move the OTA.  Not wishing to force it at all (in case I
broke something) I was looking for a service manual to see how to
release the OTA to get at the Dec Setting Circle and see what wants

If you know how to disassemble the OTA from the mount, I'd be grateful.

Kind regards

Mike here: You were on the right track to remove the OTA. See the bottom of this page: However, you may not need to remove the OTA to fix the problem. See the article "DEC Scale modification" on the Helpful Information: Telescope Tech Tips page. Although that article is not for the ETX-90RA, it may still get you pointed in the right direction.
Subject:	ETX 90 RA
Sent:	Sunday, December 7, 2008 14:32:46
From:	Nancy W. Burgess (
In searching for a manual (instructions) for the model M (90 RA) Meade
Telescope which my brother gave us, I came upon your website. I was
wondering if you might know where I can find a copy of a manual for this
model? I would be willing to pay for a copy. Thank you very much!


Nancy Burgess
Mike here: The ETX-90RA manual is online at Meade's site:


Thank you for the speedy reply!

I had a trawl through the site but couldn't find anything specific to my

Thanks to your email, I'll have another go.

Thanks Mike

Clear Skies!

Mike here: The ETX-90RA was originally called just the "ETX" or the "ETX Astro" or the "ETX Astro Model M". So what info were you looking for?

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