Question about Meade ETX-90EC (325 x 90mm) Telescope

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The 497 controller on my ETX-80 Backpack telescope will not illuminate despite use of the troubleshooting steps in the manual. I think my telescope may be defective. What can I do?

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  • 227 Answers

See link below They know everything about the ETX

Weasner Mighty ETX Site

Posted on Oct 15, 2014

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Posted on Jan 02, 2017

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SOURCE: My MEADE etx 105 telescope remote wont turn on.

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

www.meade.com

Posted on Sep 24, 2009

SOURCE: Vertical adjustment/lock knob is broken-any ideas how

You can do a do it yourself repair.
http://www.weasner.com/etx/techtips.html


and or call Meade and see if you can order a new part.

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

Posted on Oct 15, 2009

SOURCE: Need schematic for a Meade ETX-105EC telescope

Many schematics and instructions located at the Mighty ETX web site:

http://www.weasner.com/etx/menu.html

also check out this ETX "tune-up" web site:

http://www.weasner.com/etx/techtips/etxtu.htm

Good luck.


Posted on Dec 30, 2009

SOURCE: I have a Meade ETX model M telescope. I need to

Meade "might" sell you the replacement part. But most likely they will want you to return the scope for repairs.

Call them:

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

Posted on Feb 10, 2010

SOURCE: I have an older ETX

This is a known issue with the older ETX scopes. You can use silicon sealant or a small amount of hot glue -- and just put the mirror back on it's small platform.

However you might need to disassemble the rear of the scope to do this. See this web site for instructions on disassembly.

http://www.weasner.com/etx/menu.html

Posted on Sep 08, 2010

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I bought a used etx90 with autostar. The scope works with the basic controler. When I plug in the autostar it beeps & lights up the number panels, but I can't see anything in the led screen. is...


The contrast and brightness can be reset --- here is the manual -- how to do this is listed in the manual. If this does not repair the controller then you will need to buy a new hand controller-- the 497 hand controller is available used on Ebay from time to time.

http://www.meade.com/manuals/TelescopeManuals/ETXtelescopes/ETX-90%20w-autostar%20man.pdf

Manual down load above--

May 06, 2011 | Meade ETX-90EC (325 x 90mm) Telescope

1 Answer

ETX-80 hand controller say's "Self Check Failed"


You may need to reload the firmware by following these instructions for Safe Load:

From the Autostar 2.0 README file: "SAFE LOADER MODE IN YOUR Autostar:
If the firmware in your Autostar crashes and you cannot access the "DOWNLOAD" menu item on your handbox, you can use the "SAFE LOADER" feature of your new Autostar software (version release 1.1G and above). To get into the safe loader, follow these simple steps: 1. Make sure the Autostar and ETX are turned off.
2. Press and hold the "ENTER" key and the Scroll Down Key located to the right of the help key on the Autostar handbox.
3. While depressing both keys, turn on your Autostar power switch. This will require you using both hands.

You should see "FLASH LOAD READY" on your display. This indicates that you can proceed to Update new software to your Autostar."

This is for the 497 controller. There is NO safe load for the 494 controller.

Nov 01, 2010 | Meade ETX-80AT-TC 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

Vertical adjustment/lock knob is broken-any ideas how


You can do a do it yourself repair.
http://www.weasner.com/etx/techtips.html


and or call Meade and see if you can order a new part.

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

Oct 13, 2009 | Meade ETX-80AT (240 x 80mm) Telescope

1 Answer

Need instruction manual for 1996 or 1997 etx 90 basic model


The manuals are all available to download from www.meade.com.

If your scope has the motor drives and a control panel into which a controller could be plugged, then you just need to buy an Autostar 497 - always available on eBay for about £85. However, there are older models of the ETX which only have one motor or as a spotting scope for terrrestrial use with no motors - Autostar cannot be connected to these.

Look at the pictures of scopes on eBay which come with Autostar - if your looks like these, Autostar will fit. Else you are out of luck!

Apr 11, 2009 | Meade ETX-90 (48x90 mm)

2 Answers

ETX-125 Autostar controller not working


I assume the small red light on the power panel is ON. ???

If it is the scope is receiving power--- check to make sure the cable from the hand controller is plugged in properly-- jiggle the cable to see if you have a loose BAD cable. Before you panic --- try another cable or reverse the ends ---

Before you buy another hand controller try a new cable-- scopestuff.com sells a nice long flexible one for the 497 hand controller.


Jan 14, 2009 | Meade ETX-125EC (500 x 127mm) Telescope

1 Answer

The telescope doesnt go up it goes down


I assume you are using the 497 hand controller? Planets will always be a little bit OFF since their orbits are calculated. You should be able to see Venus, Jupiter, and Saturn as a disk-- the other planets are very tiny and can be mistaken for a star.

Use the Automatic alignment feature and center the brightest nearest star. It will not be in the eyepiece. Be sure you calibrate motors, and train the drives, and the time, and date and site are accurate.

Dec 27, 2008 | Meade ETX-80AT-TC Telescope

1 Answer

Want to use a 497 controller,what do i need to do to make it work,just redo,'train the drive'?


First download and read the manuals at:

http://www.meade.com/manuals/TelescopeManuals/AutostarManuals/Autostar497english.pdf

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

Do these steps in this order--

Reset
Calibrate Motors
Train Drives
Set-- Time, Date, Site, Daylight Savings to NO right now in USA
Calibrate Sensors (certain telescope models)

Do an Automatic alignment and center on the Brightest star--

Clear Skies

Oct 09, 2008 | Meade 114EQDH4 (36 x 114mm) Telescope

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