Guide :Optics : 8" LX90 LNT Schmidt Cassegrain Telescope with SmartFinder w/...

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 up....it suddenly goes to ERR message, instead of displaying the coordinates. Meade, of course, disavowes any help under what was termed a "life-time"warranty when I bought the scope. Suspecting an encoder I've tried to locate a replacement for the RA, where initialization reportely begins, but can't locate a match. I've also swapped the identical DEC encorderinto the RA position...but the Error persists. Parhaps the flaw is somewhere else...but only weeks ago, it was all running just fine. CAn you offer any help or suggestions. Thanks, Jeff Thompson, [email protected], (336) 712-3341

Posted by JeffTcom on Apr 25, 2008

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We did not find results for: 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 up it suddenly goes to err message instead of displaying the coordinates meade of course disavowes any help under what was termed a life time warranty when i bought the scope suspecting an encoder i ve tried to locate a replacement for the ra where initialization reportely begins but can t locate a match i ve also swapped the identical dec encorderinto the ra position but the error persists parhaps the flaw is somewhere else but only weeks ago it was all running just fine can you offer any help or suggestions thanks jeff thompson jefftcom aol com 336 712 3341.

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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 up....it suddenly goes to ERR message, instead of displaying the coordinates. Meade, of course, disavowes any help under what was termed a "life-time"warranty when I bought the scope. Suspecting an encoder I've tried to locate a replacement for the RA, where initialization reportely begins, but can't locate a match. I've also swapped the identical DEC encorderinto the RA position...but the Error persists. Parhaps the flaw is somewhere else...but only weeks ago, it was all running just fine. CAn you offer any help or suggestions. Thanks, Jeff Thompson, [email protected], (336) 712-3341


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.
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Rear mirror I have a telescope which I believe the internal mirror in the base may have been adjusted. Is there a way to test or reset to original, or am i just wasting time. The manual states never to adjust this but try telling my son. I have tried to locate something on this on the net but cannot locate any help. Yours help would be much appreciated


I may be telling you something you already know, but just in case. If your telescope is a newtonian/dobsonian (i.e., long, large tube) then the mirror in the bottom can be adjusted to collimate or align properly. On the other hand, if the top of the telescope has glass over it (refractor telescope) then putting it back into place will be more labor intensive and I wouldnt even try it. Try going to the manufacturers website and asking them. You might post the same question on a telescope forum called cloudynights.com. If you live in a large city, try searching for local astronomy clubs as every astronomy club has some guy there who takes these things apart for no reason just to put them back together.
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Joe- Today I checked out my friends scope and specifically looked over the misaligned mount. Tomorrow, with the help of some contractors we are going to remove the scope, cut the bolts, and then break the pedestal free from the glue fastening it to the concrete. My friend is an archeologist and has an electronic theodolite/compass device, which we plan to use to realign the scopes pedestal to true north. I found our magnetic declination for our location and date at http://www.ngdc.noaa.gov/geomagmodels/struts/calcDeclination and will correct the alignment from magnetic to true north. Once this is done the wedge angle needs to be correct and I am worried because I didn't see any adjustment mechanism for altering the altitude angle of the wedge. My friend says he gave Meade the exact Latitude/Longitude coordinates, and thinks that probably the wedge is made with correct angle already. Right now, I'm thinking the only way to know for sure is to try to polar align the scope after it is remounted facing true north. If the angle is wrong and it turns out the wedge really isn't adjustable, is there any option but a new mount? In additon to the above, my friend tells me there is another possible problem, the autostar has to have the date and time reentered every night it has been used. Is this due to the non-functioning GPS? And,more importantly, will this effect the Goto functions? Again- thanks in advance for your help- my friends trust in my abilities to help greatly exceed my level of understanding- so you are needed and appreciated... Sincerely- Scott R.


Hum? I have never heard of a Meade wedge that was not adjustable?It might be possible to SHIM up the wedge slightly by using either thin metal shims, but DOWN would be a problem.Does he have a tripod for the telescope? If he does you can try to do a polar alignment on the tripod and see what happens.???You can find a Meade Super Wedge or Ultra Wedge from time to time on AstroMart.com It will cost you $12 to join so you can fully use the web site. You can place a WANTED AD on the web site saying you are looking for a wedge, and try to find a used wedge at reduced cost.HOPEFULLY, it will be correct, and also you may be able to use the bolts coming out of the pier and put some bolts on them to RAISE or lower the angle?Look at this pier-http://www.astro.shoregalaxy.com/telescope%20pier%202.jpg
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Motor Unit Fault but everything works?


You never said what model you own. If it is a 497 hand controller do a CALIBRATE motors, and make sure you have FRESH batteries, and or use an outside 12 volt power source, like this one.http://www.astromart.com/articles/article.asp?article_id=87You will also need a special power cable from Meade.
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Mead lx6 model 2120. DRS will not get past the error message and when it does, the DEC and RA do not change when the tupe is moved in RA or DEC. Where can I get repairs done or mabe a schmatic for the electronics and tracking in the base. Thank for your help. Jeffrey Matthews [email protected]


This is a very old Meade SCT telescope. You can try contacting Meade customer service but I would doubt that they still have parts??http://www.meade.com/support/index.htmlSo, go to the Yahoo Groups LX200 forum and join and ask questions. Someone may have that model Meade SCT. Also there are people on the forum that can repair the circuits in the hand controller if something is blown. Good luck.
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My LX200 (1992 vintage) has apparantly suffered complete electronic failure. Having blown both the line fuse and the slow blow behind the power panel, I started trouble shooting and found: The ribon male connector on the power plate has a short between terminal 1 (18v line) and terminal 2 (12v line) somewhere on the back of the connector hidden from view. In addition the said 12v line is down to earth, either through the caps C1 and C2 or the plugs for Rs232 or the key pad. To locate these faults I had disconnected C4 , R1, D2, the 5V regulator and even cut the pc board tracks in a few places. With apparantly several faults on this pcb I assumed the main pcb could be faulty as well. Then I decided to stop further troubleshooting My question is what can be done. Is it possible to replace all the electronics? The scope has seen very little use, but may have suffered electronic failure due to extended expsure to slight humidity. The pcb appear in perfect condition though, ie shiny and no signs of track faulting. I hope this helps to describe my distress adequately. I hope there is a way out because manual guiding is not on for me.


Ron Sampson can repair the electronics in Meade telescopes. You only need to send him the boards with your detailed description of what you believe is burned out.He can be reached by posting a message on the Yahoo LX200 and or LX90 Group forums. Also Dr.Clay in Arkansas can repair the scope along with Meade (possible if they have new boards) -- Dr. Clay can be reached here:http://www.arksky.org/supercharge.htm
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I own a Mossberg Model A "Spotshot" 20X target spotting scope which I bought back in 1953. It is in excellent condition except for the fact that all of the internal tubes and lenses were removed for cleaning some years ago and I lost the order in which they have to be re-assembled. The optical train consists of the following: 1. optical "stop" with 1/2 " hole, thickness 1 mm 2. aluminum tube spacer, length 41 mm 3. " " " " " length 19 mm 4. " " " " " length 18 mm 5. " " " " " length 5 mm 6. Lens, dia 12 mm, focal length 22 mm 7. Lens, dia 9 mm, focal length 16 mm 8. Lens, dia 3 mm, focal length 22 mm 9. compression coil spring 10. objective and eyepiece ( No question about where they go.) I measured the focal lengths using the sun as the source, and a mm scale. They are approximate. I thought I could use the above information to figure out the order of assembly, but so far without success. I'm down to trial and error, which is driving me nuts. I sure hope you can help. Thanks in advance for your help.


As I had rebuilt many zoom lenses in my lifetime the ground glass on the back side is what you are looking through on any scope. It magnafies that way to capture the entire image of the frame your focussing onto. Now the lens the nearest to the eye is producing the smallest image and graduate in a larger size each steped up.. Look at the below link to get an idea
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I have a Meade ETX 60 / 70 AT. When I moved to Louisville a few years ago. The telescope would no longer initiate and could not find my location. I put the telescope away and did nothing with it. It is a great piece of equipment and I would like to get going again. I called Meade customer service and they said to buy a new one. My question is - anybody who could evaluate the telescope? Any contacts, clubs, etc? Any help would be appreciated. Bill


Most repairs will be MORE than the telescope is worth.You can buy these used (and working) on AstroMart.com from time to time for under $200.Meade will repair this for about $175. So it makes no sense. The only thing I would try is a new hand controller cable. If it still does not work then you may be able to seell it for parts on astromart.com
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I bought my Eagle Optics Denali spoting scope a few years ago and haven't used it much. I am now retired and would like to start using it. I would like to attach a Nikon SLR camera to the spoting scope. Any help or instructions would be greatly appreciated.


Hi David, Unfortunately, there isn't a good solution for adapting the Denali spotting scope to an SLR camera body. Your best option for tele-photography through that scope would be using a small, point-and-shoot type camera. If you want more details, don't hesitate to contact me at Eagle Optics. I'd be happy to walk you through the process. Ben Lizdas Sales Manager Eagle Optics 1-800-289-1132 http://www.eagleoptics.com/
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I am a beginner and received the Skywatcher Heritage 130 a month ago. I cannot get an image through the eyepiece, I have put my telescope on a higher table, thinking that might be the problem. Can you help? Much thanks, Susan


You did extend the tube?Watch this video:http://www.youtube.com/watch?v=FEs_MMcJ7JAIt is a demonstration of the scope. Put the eyepiece with the largest number written on it and practice focusing on a distant object during the day time.
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