Last updated: 9 December 2005

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This page is for user comments and information of a general nature or items applicable to all LXD55 models. If you have any comments, suggestions, questions or answers to questions posed here, e-mail them to me and I'll post them. Please use an appropriate Subject Line on your message. Thanks.

Subject:	thanks
Sent:	Tuesday, December 6, 2005 19:10:25
From:	Eddie Walker (violin999@hotmail.com)
Hi Mike, thanks for your help. I calibrated the motors and trained both
drives and there was a dramatic improvement. Now when I slew
conterclockwise and let go of button its stops, and when I slew
clockwise and stop then it goes counter clockwise about one tooth and
then slews normaly. I probably need to do a more precise drive train. I
did a goto to mars and with a 3x barlow and 10mm eyepeice, it stayed
almost in center of eyepeice for about 25 mins.

Again thanks for your help.


Subject:	right ascension drive problems lxd55
Sent:	Friday, December 2, 2005 19:12:33
From:	Eddie Walker (violin999@hotmail.com)
Hi I have encounterd a problem with the right ascension drive wanting to
slew to the west. If I slew to the east it will stop and right away move
back to the west, and contine but very slow to the west.When I first
power up I can slew and everthings fine until I enter time and date and
alignment. I called meade today about a new right ascension unit. I
downloaded the latest autostar version, even reset the handbox, tried a
different cable. Nothing seems to work. Any suggestion would be

Thanks Eddie
Mike here: Have you done a CALIBRATE MOTORS and TRAIN DRIVES? These cure most such problems, assuming it is not a mechanical problem. And I always recommend doing them after any Autostar ROM update.


Hi Mike, thanks for your suggestions. I tried them but no sucess. Ive
got an extra motor that came with the mount, I may try to install it and
see if it helps.

I havent changed any ratios or anything I dont think that could be a

I guess I will order the ra unit from meade tomorrow, dont no what else
to do.


Mike here: Does the problem only appear in some orientations and not others? If so, maybe it is a counterweight issue.


Hi Mike, thats ok I know you are busy. I changed the motors yesterday
and it didnt help.

While I had the r.a. unit off, I hooked it up, went through autostar to
the align section and it started to slew about a quarter inch, by
looking at the gears, then slows back down to what I assume is a normal
speed. This is what it does when it is installed on the mount. I
adjusted the worm gear but that made no difference. Looks like to me its
something in the control panel electronics. I changed handbox cables and
it made no difference.

Sorry to ramble on.

Mike here: After you installed the new motor did you do a CALIBRATE MOTORS and TRAIN DRIVES? Remember, you have to TRAIN DRIVES on BOTH axes.

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Copyright © 2005 Michael L. Weasner / mweasner@optcorp.com
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