Question about Meade RCX400 12 Telescope

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Meade RCX 400 hand paddle does not boot up anymore.

When I turn the scope on the hand paddle starts normaly, showing 'RCX400 Meade (c) 2005' then it changes to 'RCX400 Virsion 2.2i' then just sits there. It just sits there. I have borrowed an 'Autostar II' hand paddle from a friend and it does the same thing with his cord and hand paddle. I suppose it would be a problem in the base of the telescope; but I don't really know were to start. Can anyone help??

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Post this issue on the LX Forum --

Posted on Jul 05, 2009


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I need to clean the mirror. Larry

You would need to use this type of technique to clean the mirror:

However, you will need to dis-assemble the rear of the scope tube to get to the optics. Not a very easy task with your RCX ! in fact you should probably return the tube to Meade for cleaning seeing as this is a multi- thousand dollar telescope!

This scope is VERY EXPENSIVE, and should be cleaning by experts and or the factory. Call Meade directly here:

Jul 30, 2011 | Meade RCX400 20 in. Telescope

1 Answer

I just bought a meade telescope from a thrift store. I cannot find the model number on it. It seems to work fine, but it is missing the power cord. It may be too old to get a replacement, but I won't know...

Telescopes do not have serial numbers-- except for a few custom made scopes. Most actually have names and numbers like LX90, LX200, RCX, ETX90, and so forth.

This is probably a small refractor, or reflector style Meade scope. Look under the refractor header or the 4.5 inch reflector header at the manuals and see if you can match up a manual to your scope:


Apr 25, 2011 | Optics

1 Answer

Hi I have a meade ETX 105 pe I can get the scope to move Alt motion with the controller but it wont move in the Azimuth position with the controller. Might I be doing something wrong

This can be caused by 4 things-

A stuck button on the hand controller.

A bad hand controller cable

A burned out circuit board inside

A burned out Azimuth motor

(Long shot) bad firmware in the hand controller. DO a Reset and reload the firmware.

Try to borrow another hand controller and buy a new cable. If these two do not fix it then it's a mechanical problem or a circuit board problem inside the scope.

Meade can repair this but you will need to send them the scope:

Mar 26, 2011 | Meade ETX-105AT (420 x 105mm) Telescope

1 Answer

When i start autostar then it dont work normaly... when i select Speed:2" sec then the scope doesnt moving. I cant set it up to because when i select a country then the city selection appears i select...

DO a RESET on the hand controller and start over again. See the manual for how to do a RESET which places the hand controller back into the factory default condition.

Dec 27, 2010 | Meade DS-2080AT Refracting Telescope w...

1 Answer

Scope is 12.5, 9 years old. We align by going to "named star," selecting one, slewing, correcting, hitting synch. Repeating with another star. Almost always the scope goes to accurately there after. (We...

Runaway DECLINATION is what this is called. Usually it can be fixed with a new hand controller cable. If a new cable does not fix it, then it has a blown motor circuit board and must be returned to Meade for repairs.

Meade customer service:

Aug 18, 2010 | Meade LX200GPS Telescope

1 Answer

Lz200gps doesn't boot and I can't communicate via com1

Before you panic, try a new hand controller cable. You can buy these from Meade or for a better one from

"Autostar II: if you need to use Safe Mode to recover from a disaster,
turn on the telescope, and key 999 before it says "Initializing"
The Autostar will say "Flash Load Ready"... now go start the ASU.

Read this page all the way through--

Jun 02, 2010 | Meade LX200GPS Telescope

1 Answer

Help me! My telescope will not turn on and I have been waiting 30 munites now to get service.

Answered your question in a previous question. Contact Meade customer service. Either the cable is bad or the hand controller is broken. NEVER plug or unplug the hand controller while the scope is turned on.

Jan 08, 2010 | Meade DS-2114 ATS (325 x 114mm) Telescope

1 Answer

RCX 400 Serial port connection failure

If you are sure it is not the cable--- and the serial port NUMBER is correct-- then time to send it back to Meade for repairs. ARE YOU SURE that you have set the SOFTWARE to the proper port number?

Jun 12, 2009 | Meade RCX-400 Telescope

1 Answer

My great Meade LX6 10 ", F/6.3 scope...has developed a vexing problem in the hand paddle controller attached to the RA & DEC encoders. After starting to initialize or boot suddenly goes...

My scope sat in a basement for years and when I started it up I got an error the same as you discribe. Through sear luck I found it to be a bad connection where the encoder wire pluged into the battery box.

Apr 25, 2008 | Meade 8" LX90 LNT Schmidt Cassegrain...

4 Answers

Meade 114EQ-DH4 Starfinder MANUAL NEEDED

Here is the manual off the Meade web site--

Any Meade dealer can get you a hand controller for the scope--

Try these two--

Call them up ---

Mar 08, 2008 | Meade 114EQDH4 (36 x 114mm) Telescope

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