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Make sure that the driver has the correct Longitude; I seem to
recall having a similar problem when moving my AP900 to a new
location and the longitude kept reverting to East instead of West.
I think I had to rename the location and save with a power off.
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On 3/12/2020 9:25 AM, Stuart wrote:
All - my AP900GTO CP4 has been idle for over a year
and with power OFF. I am putting it back into operation and am
having a weird time getting the scope to find targets (like at
- When I power up, the hand controller signals that I am
set to EXT and to hit MENU to use the hand controller. I
- Then it prompts for my Location (I only have one): I
select '1' and GOTO
- I checked the Lat/Long and it is my home location. I
adjusted it very slightly as the mount is in a slightly
different location than it was).
- I checked the Time and Date and they were off by a few
days (odd?) - I corrected them both.
- At this point, I loosen both clutches fully, signal I
want the mount to go to Park 4 and hold the mount while it
whirs away and when it is done, I use a bubble level to
position it in Park 4. I tighten the clutches gently,
issue a second Park 4 command, check the level then lock
in down firmly (hand tightening only of course)
THEN the weird part: I hit menu till I'm at the top menu, I
select Object then pick some object I know is up in the sky
(I'm in a dome shielded from any risk of pointing at the sun
and the scope is covered anyway). Let's pick Venus for example
(tho it failed on the moon when the moon was up also). In most
cases the hand controller declares the object I can see naked
eye (Venus, the Moon, Betelgeuse, ...) is below the horizon.
Or it slews and slews way off the target.
Is it possible my hand controller db is corrupted from the
long time powered down?