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Aligns to three known stars ok but then why does it go to completely wrong area and slews in slow speed?

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Ha, a familiar problem with Synscan and similar. You must do these things exactly right. Set up the hand controller properly for
- time (daylight saving or not)
- location, lat and long.
- hemisphere N or S

The mount must be
-levelled (don't trust the bubble on the mount, they are rubbish)
-pointed at the celestial pole (if an EQ mount)
-pointed due S or N (if alt-az)

You will find that most of the time a 2-star alignment is sufficient. Attempting a 3-star alignment is usually only successful if you have also taught the controller about geometry errors in the mount itself (they all have such errors), which is a tedious procedure you ought to leave until later. Even a 1-star alignment may be enough for planetary and lunar obs.

Don't neglect to use the "sync to object" feature it probably has in the hand controller. To use this you slew to an object using a medium to low power EP, activate the sync feature, center the object in the EP, and press enter. This has the effect of fine tuning the pointing accuracy in that segment of the sky.

Posted on Apr 14, 2015

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CG5 is brand new-not 30days old yet. Mount slews before a star is selected for alignment and continues to slew about the RA until power is cut. What is wrong. Tried 2 different power sources and factory...


You should return the scope under warranty-- however a bad power supply-- and or a bad hand controller cable can cause these symptoms called a "runaway slew".

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You might want to join the following Yahoo group:
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I am not familiar with the LX200, but there are probably folks on the Yahoo group that can help.  The only thing I can think of is if you are using a wedge and the wedge isn't at the correct angle (should match your lattitude).  Or you are not using a wedge and the Meade controller thinks that you are.  But one would think the calibration would solve that.

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Here: http://www.celestron.com/c3/images/files/downloads/NexStar_SLT_manual.pdf

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