Guide :Optics : ETX Premier Edition: ETX105 PE Telescope

Motor Unit Fault ETX125 new out of the box - Meade ETX Premier Edition: ETX105 PE Telescope

Posted by rodletts on Jul 24, 2008

Research, Knowledge and Information :

Weasner's Meade ETX/DS TechTips

Finder/guider for ETX-80(02/20/12) Meade ETX 125 PE Electric Focuser ... Premier Edition / LNT. Broken ETX LNT Lens Fix ... Fixing a Motor Unit Failure ...
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Weasner's ETX PE Feedback Page

This page is for user comments and information specific to the ETX PE (Premier Edition). ... My new Meade ETX 125 PE ... to a PE/LNT telescope, ...
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Suggested Questions And Answer :

Motor Unit Fault ETX125 new out of the box - Meade ETX Premier Edition: ETX105 PE Telescope

If new, then under warranty. Contact Meade.
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ETX125 PE new model. Elevation has totally stopped.

Could be that the DEC motor driver has died. That could be verified by swapping the connections between the RA and DEC. If the DEC now moves, then that is the problem. If not, then the DEC motor is bad.
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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:
Read More At : ETX-105PE Astro Telescope Premier Edition With Full Size 884......

I have a Meade ETX-70. When turned on, the handset says there is a Motor Unit Fault: Motor failure detected due to moving handset between scopes, low battery level, obstructed or overloaded scope. I've replaced the batteries with fresh ones, with no luck. I do not understand what they mean by "moving handset between scopes". (Note: twice the motor unit engaged and the telescope rotated on base while warning was scrolling across handset,

This is usually caused by low battery power-- as the hand controller reported. DO NOT USE rechargeable batteries they do not have enough volts. Use alkaline batteries only.This can also be caused by a broken gear or a failed internal motor. You can return these to Meade for repair.Here is the contact number:
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Meade ETX 70 telescope won't turn on regardless of power source

Dead on arrival! Meade can fix these, but they must be shipped back to the factory.Here is their customer service web site:
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I have a one year old 125PE scope on an AutoStar "Go To" mount. IT was working fine until SUnday night when the Altitude gears started to jam when raising the OTA. The unit was not bumped or dropped. I switched to AC power (Meade beanded power supply) and the problem persists. It sounds like; "whirr, whirr, whirr, BUZZZZZZZZZZ, whirr, whirr, whirr..." I have the fork cover off (this is an LNT unit) and can see no broken teeth on any gears. The bussing comes from within the plastic gear box. Are there any adjustments I can make or a way to get a replacement gear box?

See this web site for pictures of the ETX and repair tips. The best ETX web site on the internet.
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Azimuth motor gearing problem

Sounds like it could be that the worm gear is not meshing Look here for guidelines in the internals
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OK, that model has an internal adjustment. A good source for all kinds of information and tips on the ETX series is available from:
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I have a Meade ETX-70AT scope that I inherited from a neighbor years ago. It came with two eye pieces (9 and 25 mm), a tripod, and an Autostar which I believe is the #494 model. On the bottom of the Autostar, there are no ports for cables and only the coil cable going in (no way to remove it without cutting it). When I plug it in, even with fresh batteries in the scope, and turn on the power, I only see one row of LCD squares, occasionally two, and every once in a great while it lights up red. I usually try it when indoors where I can see what I'm doing, and I am at a loss for what to do, other than break it open and try to fix it myself. Thanks in advance, Alex

The hand controller cable is probably defective-- right at the connector that plugs into the scope. Any computer network "wizard" can replace the connector. The wires must be in the exact same sequence when he repairs it.If this simple fix does not work and you KNOW that the batteries are good-- then the hand controller is defective and will need to be replaced.
Read More At : 494 AutoStar Telescope Control Unit (Handbox only)...

Autostar 497 freezes

When warm and indoors (!) connect Autostar to scope and by serial lead to a PC, allow Meade Autostar suite to update the Autostar Firmware to the latest version (2009!!) Frome : How To Upgrade Your HandboxTo upgrade your Autostar first click on the link below to download the Autostar Update (ASU) Client Application for Windows. If your web browser allows you to open the installation file, you may choose that option when prompted. Otherwise, just save the install file to your local hard disk drive. When downloading is complete, double click on the saved file to start the installation. Follow the instructions provided to install Autostar Update (ASU) on your machine. When installation is complete, start ASU by selecting "Start Menu" -> "Programs" -> "Meade Inst" -> "ASU". If you have an active Internet connection and your telescope with Autostar is connected using the appropriate cable as listed above, ASU will detect and install the correct Autostar code directly from Meade's web site via the "Upgrade Autostar Software Now" button. Autostar UpdateAutostar Update is an application that functions to transfer the event files and software updates from your computer, through the serial port, USB or Connector Cable Set depending on your telescope model. The Autostar Update application is available as a stand-alone client application for Windows. The most recent versions of AutoStar Update automatically check for the newest versions of the AutoStar Updater and download it if necessary. It is critical that you use the most recent AutoStar Updater to ensure that you get the proper software updates for your system. 06/02/09 Autostar Update (ASU) Client Application for Windows, Version 5.6 (1,654 KB). This is the latest Autostar Update. Rev. 5.6 is compatible with the ETX-LS and #497EP Hand Controllers. This version is compatible with all versions of AutoStar II and #497 AutoStar computer controllers. This installation will automatically update the Update Client Application in AutoStar Suite™ Software. If you have previously installed the Autostar Update (ASU) Client Application for Windows, Uninstall the old version before installing this new version. 07/27/09 #497 AutoStar hand controller software update. Version 5BE2 (1,039 KB). General update. Fixes many known bugs. Real time clock corrections. LXD75 polar alignment. Various LX90 pointing and tracking fixes. Adds new magnetic/true north alignment. REQUIRES VERSION 5.6 AUTOSTAR UPDATER.
Read More At : Autostar Suite Autostar Suite Software Telescope...

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