Thanks for the added info. It helps.
The finder in the photo is the one I have.
That power supply should be fine. The system does not take a lot of power. When tracking it uses very little. Slewing is where it uses the most but I think even during high speed slew it uses less than 2 amps and then for a short time only. I think you are fine.
I mistakenly posted the manual for the 494 controller. I deleted that one and uploaded the 497 manual which is the correct one for that scope. I will reference it below.
Getting the mount level is important.
The starting point for the scope itself is just to give the scope a chance to find the first and second alignment stars. Don't worry if they are off an you have to use the hand set to move it to get them into view. Once alignment is done, it is the accuracy of your centering of those two stars that will drive the accuracy of the GoTo. You can use a low power eyepiece to get them into the field but use a high power or an eyepiece with a cross hair to center the star. The more accurate the better.
I don't see a reference to the spiral search in the 497 manual so it may not have it but try the procedure anyway. It may work. I posted it earlier.
Since it is an old scope there may be slippage in the clutches and slop in the drives.
If you want to test the scope, after you do the alignment and confirm the second star, tell it to GoTo the first star by selecting it from a menu. It should hit it close to dead center. If it does not, that is your slippage and your gear slope.
Page 3 references self calibration: Likely you need to calibrate the scope motors. Since that scope did not come with that control it may have been moved from another scope.
Self Calibration: “Testing Motors” is displayed and the telescope
moves a short distance in both axes. Automatic calibration of the
motors happens only once, the first time Autostar is used.
NOTE: If Autostar is moved to another telescope, it needs to be
recalibrated (see the Setup:Telescope:Calibrate Motor menu).
Calibrate Motor: If the telescope motors appear to have any
sort of problem, use this option to retest the motors before
doing a “Reset.” This option is also used if Autostar is moved
between telescopes to match Autostar to the telescope.
Telescope Training - Page 6
Autostar is not able to accurately point at objects unless it is aligned
and trained. Training Autostar allows it to collect data about the
gears in the telescope motor system. Once training is complete,
Autostar saves the data for later operations. Use great care in
training the Autostar system to achieve maximum accuracy.
To train Autostar, prepare the telescope for optical viewing by
removing dust covers and inserting an eyepiece. The viewfinder
should also be aligned and ready for use. Select a fixed land object
as a reference for the training process. Point the telescope at the
selected object and center it in the eyepiece. Press MODE until the
main menu is displayed (“Select Item:”). Press a SCROLL key until
“Setup” is on the bottom line, then press ENTER. With “Setup:” now
on the top line, press a SCROLL key until the bottom line reads
“Telescope,” then press ENTER. In the “Telescope” menu, press a
SCROLL key until “Train Drive” appears on the bottom line, then
press ENTER. The top line of the screen should read, “Train Drive:”
and the bottom line should read “Az. Train.”
Both telescope motors need to be trained separately. Start with “Az.
Train” by pressing ENTER and following the instructions given.
Autostar moves the telescope away from the centered object and
asks that it be centered using only one ARROW key (all other
ARROW keys are disabled). After the object is centered, press
ENTER. Autostar now moves the telescope in the other direction
and ask for the object to be centered again. Center the object and
press ENTER. The training for the Azimuth axis is complete.
Autostar has returned to the “Train Drive:” menu. Select the second
motor using a SCROLL key until the bottom line reads, “Alt. Train.”
Press ENTER and follow instructions as before. This time, the
telescope moves up and down otherwise the training sequence is
the same as “Az. Train.” After completing “Alt. Train,” Autostar is
ready for alignment and operation. Remember the accuracy of this
training determines how well Autostar finds objects.
Bottom of Page 7 - Synchronize Function: I have never tried this
To improve the ability of Autostar to find
objects, a “sync” function is included to make minor alignment
corrections. If an object is not centered in the eyepiece, press and
hold ENTER for two seconds. Autostar requests that the selected
object be centered, then press ENTER again. This improves the
accuracy of alignment, particularly in the region of sky immediately
around the “sync” object.
If you have not done these then you should. They may greatly improve the accuracy of the Goto. I do this about once a year just as a tune-up. I do it during the day. Only takes a few minutes.
Edited by aeajr, 06 March 2018 - 04:15 PM.