Question about Meade LX200GPS Telescope

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Meade LX200GPS 16" out of calibration?

Meade LX200GPS 16" I recently acquired it (gently used) from an estate. I am afraid the scope is way out of calibration. When I do an auto align, the 'north' it finds is a good 5+ degrees east of polaris (I am in Arizona so it could just be slewing to magnetic north, but I haven't checked it with a compass), and when finding level, the scope is always tilting about 2 degrees more toward the ground than a 4 foot bubble level on the length of the OTA indicates is level. Would it help to remove the knob on the non-motorized side of the fork and shim up the ballbearing level (sensor 1) to reflect the same as the bubble level placed on the OTA? Then, after the 2 star auto alignment, it never slews close enough to a target to find non-naked eye objects without lengthy spiral searching (the target is sometimes even outside the range of the 8x50 finder scope). It is mounted on a heavy iron Alt-Az pier bolted to thick concrete and is verified level with a 4 foot bubble at 90 degree rotational intervals. The autostar is definitely programmed for the proper telescope. The GPS fix comes back accurate for time, date, and long/lat. It appears to complete all the align functions, it's just not accurate enough. I'd really like to recalibrate this myself, as the size of the scope makes it extraordinarily difficult to return to Meade for them to do anything to it. Are service manuals available, or is that door locked? And does the sync function work with the newer autostars like it did with the old classics (to improve slewing accuracy on the fly and train the drives more?) Sadly, I had better luck with an old 12" classic than this scope. Any help you can offer would be extremely appreciated. Thanks...Jeff Blair

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  • jb2thpuller Jun 05, 2010

    I know you must get questions from many people who don't know much about their problem, but I've been at this a long time and I've already tried the obvious. I have previously upgraded the Autostar II to 4.2g, the most current firmware. I have an owner's manual and know how to download them from Meade's website, but there are no SERVICE manuals there and I wanted to know if anyone has one or if they are even available, as Meade seems to be pretty protective of their technology. I want to know how to calibrate and repair this beast (I used to be a broadcast engineer). My question about synching wasn't even addressed. Please help if you can. Thanks...JB



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  • 12,061 Answers Above is your user manual. Below is the polar alignment guide.

Below is an online manual. An auto guiding link below. -
How to align tutorial. - United States

You indeed seem very competent, and i think that using this above information, you will be able to figure it all out. Setting these up is indeed the hardest thing, although as you know once set, it is all good. I hope all this information I have provide you will help. I indeed see nothing wrong with your suggestion, IF, that's indeed what needs to be done, and ONLY do it, id after doing everything else first, you still cannot Zero it, then doing as you say should set it to rights, good luck.

Posted on Jun 05, 2010

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Before you panic I would update the firmware/software on the telescope. With an LX200 interface cable you can upgrade the software in your telescope from your PC by going to Meade's web site at

Download Meade's ASU (Autostar Update Utility) and the latest software for your Autostar II absolutely free. You can also use the ASU to add Comets, Asteroids, Satellites, and User Objects to your Autostar II with a few simple clicks of the mouse.

I believe you can get the manual here.

Posted on Jun 04, 2010

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    I linked the manual. But if you really think you've tried all the obvious steps, I would go ahead and shim up the level to force it to align.

    Also, I know this is pretty obvious and possibly not relevant to your situation, but I only add this because I had a situation myself and didn't think about it until nothing was working. Make sure you aren't near any transformer stations or the large high voltage power towers. High electromagnetic interference will throw off your calibration. Often a field is a field because it is state owned for the purpose of running utilities, etc.



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1 Answer

I have 8" LX200 about

You have GOOD power? You can try and replace the hand controller cable--

I would also Calibrate motors, and retrain the drives. But re-training must be done in alt az mode.

Mar 14, 2011 | Meade LX200GPS Telescope

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Hi I live in the UK about 350 miles away from the

Meade may or may not sell you the board. Usually they want you to return the scope for repair.

Call them and explain that you know how to fix it and only need the part. Ask to speak to a supervisor if you at first meet any resistance.

Jan 06, 2011 | Meade LX200GPS Telescope

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My 8" LX200GPS won't turn

Then it is an internal circuit board issue. Something is either unplugged inside the scope base-- or is burned out. Meade can repair these call them:

Dec 30, 2010 | Meade LX200GPS Telescope

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My telescope-Meade LX200GPS when tracking the star,it can catch it in some minutes ,but later the star out of eyepiece,is it not tracking the goal? when I tracking the jupiter,the telescope can find the...

To track the scope must:

1. Have a Calibrate motors done

2. Be well Trained using the training routine

3. Must have the correct TIME, DATE, and SITE, and Daylight Savings Time

4. Must be properly aligned on two stars.

Have you done all of the setup procedures listed in the manual? Locate a local Astronomy club and the members will help you with your telescope.

Nov 13, 2010 | Meade LX200GPS Telescope

1 Answer

My meade LX200GPS can't track the stars? wheater the bad weather of observation points will affect the accuracy of automatic alignment? how can I improve the tracking

You must Calibrate motors using the same power source as you use at night outside, then do a TRAIN drives. Some of these scopes also have a Calibrate Sensors -- and some do not.

Then do a two star alignment and center both alignment stars. Daylight Savings Time = Yes right now in the USA, check that it is set to YES.

Oct 13, 2010 | Meade LX200GPS Telescope

1 Answer

I have a meade lx200gps 10" scope. The ra up is not responing. the down is working only. After initializing and fining north the auto star says stalled motor.

Do a calibrate motors and make sure you are using a separate 12 volt power pack or BRAND NEW internal batteries. All goto scopes work better with smooth, regulated power. The internal batteries will NOT work well for very long.

The Calibrate motors routine adjusts the motors for the power supply being used.

Oct 10, 2010 | Meade LX200GPS Telescope

1 Answer

Not clearwhen looking thru eypiece when Itake eypiece out and look in without there is a clear image

The eyepiece may be DIRTY-- clean it gently with an eyeglass cleaning solution. DO NOT use must liquid as it can seep behind the lens. Locate a local Astronomy club and the members will help you with the scope.

Sep 25, 2010 | Meade LX200GPS Telescope

1 Answer

Can't communicate with serial port

You need the Meade cable and if you do NOT have a serial port then you also need a USB- to serial adapter cable.

Keyspan makes a good USB0-Serial adapter cable.

Check the PORT number in the software and make sure it is the one the computer is using.

Apr 15, 2010 | Meade LX200GPS Telescope

1 Answer

Bolt holding dec drive motor on 16 loosens.

You have a LARGE Meade telescope. This should be an easy fix if you can disassemble the fork arm and get inside.

First I would contact Meade customer service to see if they have a manual that shows disassemble instructions. If not I would join the Yahoo LX200 forum and look for help there with an owner of the 16 inch model.

Just search in Yahoo Groups for the LX200 forum.

On smaller scopes the DEC motor is held on by two spring loaded bolts, probably one has become loose?

Nov 04, 2009 | Meade LX200GPS Telescope

1 Answer

Calibrating & Aligning the Meade 10" LX200 GPS Telescope in the Southern Hemisphere

  1. Do a Calibrate Sensors
  2. Do a Train Drive in RA and also DEC
This makes sure that the scope is calibrated properly.

  2. when asked to center star, look for the BRIGHTEST star that is close to the scopes field of view. It will be that star you need to used the arrow keys on to centre it in the scope eyepiece and press enter.
  3. This star can be as much as a HANDS distance away from the centre of view
  4. If you cannot identify the star it is asking you to use, press the SCROLL DOWN key to choose another star, keep doing this until you see a star you recognise.
That's it!

You can also hold down the MODE key for about 4 seconds and scroll through the scope info. Make sure you have the correct location coordinates ( Lat/Long) and the correct time set.

Select a bright object first such as a planet and GOTO it. Once you have manually centered it in the eyepiece, press ENTER and hold it for 6 seconds, the handset will say " Press ENTER to sync", press enter and you have updated the scope with the coordinates of that object.

Oct 20, 2008 | Meade LX200GPS Telescope

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