Re: Ap1200 Issues:


Jan 29, 2006

 


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#14283 Jan 29, 2006

Hey Folks,



I am relying on the the wealth of information you folks have and

Uncle Roland's expertise to answer a question I have on the last run

AP1200 I have.

Last night after about 2.5 month's of being idle the weather

gods were gracious enough to allow us in the Northeast (MA) an

evening of clear observing at very moderate temperatures (mid-30s)

for a fine evening of observing. The start of which was not so good?

I prefer polar aligning for visual to the two star so this is

how I proceeded to setup the AP1200 (I have owned an AP900 for two

years prior not new to fine AP mounts so I am very familiar with the

routine)and setup on the first star and went back to Polaris had to

stop mount as it was heading for the other side of the mount and

down. First thought I didn't setup daylight savings as it had been

that long since last use (I also looked to make sure I didn't

accidentally hit the N/S switch to South (that was okay it was in

North also I earlier had buzzed out the cables to insure no broken

wires, time being so precious I do not want to lose it due to

something so trivial). But upon Checking through the

Date/Time/Locations Menus I saw

some odd occurances. The Long/Lat info was still intact and the Date

was correct 01/28/06 but, the current time was off by 15 hours and the

Daylight Savings time was still on Daylight Savings time.(The DS was

expected since the last time I had used the mount was early October)

I expect a little drift in time but 15 hours? I am wondering if this

is a software bug as the time was the only thing affected as it

passed into the new year? All the other settings where intact so I

was not of the belief it was the coin cell being dead. (Considering I

just got this mount this past summer so it hasn't even been a year

which is the usual time for my timed replacement of it.

Any ideas folks? as I say I expected a little drift due to

component tolerances but where did this big jump come from? I am

probably going to replace the cell just as a precautionary move

anyways but has anyone seen something of this nature before?







Thanks and Best Regards, Ron S



----------------------------

#14285 Jan 29, 2006

I don't know if the battery is dying or not. Seems suspect that only

the time is incorrect. I have had my AP1200 since 2001 and the battery

has never been changed without problems so far.

I would suspect the initial entry of the time. Is the power-up set to

automatic? Make sure it is set to 'no' for teh following testing. If

you really suspect the clock to be working incorrectly, it is easy to

check. Set your location and make sure the time is set to a known time

such as WWV or internet NIST, or Win XP with automatic time correction

from internet servers. Power down, wait 15 to 20 seconds, and power

back up. Load your location. Check the time to be sure it is still

correct. Power down and leave it for a few days. Power back up and

check the time. If there is that much time drift occuring you should

be off by minutes.



Rick.

--- In ap-gto@yahoogroups.com, "rsampsonus" rsampsonus@y...> wrote:

>

>

> Hey Folks,

>

> I am relying on the the wealth of information you folks have and

> Uncle Roland's expertise to answer a question I have on the last run

> AP1200 I have.

> Last night after about 2.5 month's of being idle the weather

> gods were gracious enough to allow us in the Northeast (MA) an

> evening of clear observing at very moderate temperatures (mid-30s)

> for a fine evening of observing. The start of which was not so good?

> I prefer polar aligning for visual to the two star so this is

> how I proceeded to setup the AP1200 (I have owned an AP900 for two

> years prior not new to fine AP mounts so I am very familiar with the

> routine)and setup on the first star and went back to Polaris had to

> stop mount as it was heading for the other side of the mount and

> down. First thought I didn't setup daylight savings as it had been

> that long since last use (I also looked to make sure I didn't

> accidentally hit the N/S switch to South (that was okay it was in

> North also I earlier had buzzed out the cables to insure no broken

> wires, time being so precious I do not want to lose it due to

> something so trivial). But upon Checking through the

> Date/Time/Locations Menus I saw

> some odd occurances. The Long/Lat info was still intact and the Date

> was correct 01/28/06 but, the current time was off by 15 hours and the

> Daylight Savings time was still on Daylight Savings time.(The DS was

> expected since the last time I had used the mount was early October)

> I expect a little drift in time but 15 hours? I am wondering if this

> is a software bug as the time was the only thing affected as it

> passed into the new year? All the other settings where intact so I

> was not of the belief it was the coin cell being dead. (Considering I

> just got this mount this past summer so it hasn't even been a year

> which is the usual time for my timed replacement of it.

> Any ideas folks? as I say I expected a little drift due to

> component tolerances but where did this big jump come from? I am

> probably going to replace the cell just as a precautionary move

> anyways but has anyone seen something of this nature before?

>

>

>

> Thanks and Best Regards, Ron S

>







----------------------------

#14298 Feb 3 8:29 AM

In a message dated 1/29/2006 2:09:31 PM Central Standard Time,

rsampsonus@... writes:



> Any ideas folks? as I say I expected a little drift due to

> component tolerances but where did this big jump come from? I am

> probably going to replace the cell just as a precautionary move

> anyways but has anyone seen something of this nature before?

>



No need to replace the battery. I doubt very much that anything is wrong with

it. Without knowing what preceded this and what settings you made before

hand, it is impossible to know why the time was off. Just reset the time and

continue to use the mount. If it happens again, carefully note what you did at the

last session.



Roland Christen





[Non-text portions of this message have been removed]



----------------------------

#14327 Feb 8 1:51 PM

--- In ap-gto@yahoogroups.com, chris1011@... wrote: >

> In a message dated 1/29/2006 2:09:31 PM Central Standard Time,

> rsampsonus@... writes:

>

>

> > Any ideas folks? as I say I expected a little drift due to

> > component tolerances but where did this big jump come from? I am

> > probably going to replace the cell just as a precautionary move

> > anyways but has anyone seen something of this nature before?

> >

>

> No need to replace the battery. I doubt very much that anything is

wrong with > it. Without knowing what preceded this and what settings you made

before > hand, it is impossible to know why the time was off. Just reset the

time and > continue to use the mount. If it happens again, carefully note what

you did at the > last session.

>

> Roland Christen

>











Thanks for the response Roland, that is pretty much what I

did it was just a little unsettling that the time had shifted that

much? When I packed the AP1200 mount up in it's Scopeguard case it

was in the end of October it was running flawlessly (as expected) and

the only difference from anything I have previously had done with any

of the AP mounts I have owned the past 5 years was allow it to sit

through November and December unused (what a crime)into the new year

due to horrible weather conditions. When I did the Polar Align this

situation was found out. From all the threads I have read through the

years on GTO mounts time, date, and location settings where my first

suspicions! And sure enough the Time was the culprit with the

alignment routine? The time was at 06 when it was 21?





I will monitor it over the next viewing sessions, Best Regards Ron S


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