Last updated: 13 April 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:	ETX 90RA Astro wont track
Sent:	Saturday, April 12, 2008 19:50:36
From:	Charles Powell (
Mike, my ETX 90 RA ASTRO will not stay on track when I try to view the
moon or star feilds. I try to set it up in polor setting and think that
I may be off target. Would this make it not track? what is the right way
to set it up? Thank you for your time. Also using your site I was able
to repair the light telescope. There were many things wrong with it but
I got it for free when I got a tripode on ebay. Charles
Mike here: Have you set the mount up for your latitude? Also, check the position of the N-S switch on the bottom of the base. If you live in the Northern Hemisphere it should be on the N position.


I live in pasadena Texas and set my latitude at 29' 45min.. I got this
from my GPS unit. The switch is set for N. I just don't know if I am
setting ture north right. Would this be the cause of it not tracking?
Thanks for your  time. Charles
Mike here: The telescope's polar axis does need to be aligned to True North (not Magnetic North. For most purposes you can use the star Polaris. With the OTA parallel to the fork arms (or the DEClination scale set for 90 degrees, if you know it is accurately aligned) point the telescope so that you can see Polaris in the eyepiece.
Subject:	re: Dead Clock Drive Board on ETX-90 RA
Sent:	Thursday, April 10, 2008 05:04:36
From:	Babcock, Philip S., IV (
Thanks for the help and providing a forum where one of your members
could provide the photos I needed.  This web site is unique in providing
such high quality info on these little scopes.

The photos are perfect.  I now have all the info I need to get my drive
back up and working.  Thanks so much for taking the time to do the
dis-assembly, photos, and re-assembly.

Phil Babcock
Westford, MA

Subject:	re: Dead Clock Drive Board on ETX-90 RA
Sent:	Wednesday, April 2, 2008 06:12:19
From:	Doug Wayland (
I have taken some photos of the circuit board in my ETX 90 RA for Phil.
It was hard to get the light right so you could see the circuits in the
photo. If these aren't good, I can try again. Let me know.
Thanks for a great and informative site.
Doug Wayland
Prince George, BC



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