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Celestron AVX RTC battery Replacement Pictures,, How to do!

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16 replies to this topic

#1 JoseBorrero

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Posted 28 September 2015 - 11:03 AM

Really Straight pictures. I guess you must know you need to unplug the mount from power supply, Dec Cable and Hand Controller.

 

Screws are numbered.

 

Enjoy  the pics and hope is informative to you.

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Edited by JoseBorrero, 28 September 2015 - 11:05 AM.

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#2 JoseBorrero

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Posted 28 September 2015 - 11:03 AM

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#3 JoseBorrero

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Posted 28 September 2015 - 11:04 AM

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#4 JoseBorrero

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Posted 28 September 2015 - 11:04 AM

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#5 junomike

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Posted 28 September 2015 - 04:34 PM

Seems simple enough.  I have yet to have this issue with my mounts.

 

Mike



#6 Rick Evans

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Posted 02 October 2015 - 08:14 AM

Thanks. Good to know info.



#7 Phil Cowell

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Posted 03 October 2015 - 03:29 AM

This one is worth a sticky with the mounts popularity.


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#8 bilgebay

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Posted 04 October 2015 - 10:01 AM

Thanks.... 

 

Isn't it too early for an AVX to need this battery replacement ? Mine is maybe more than 3 years old and battery is still good.



#9 JoseBorrero

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Posted 04 October 2015 - 10:04 AM

If your RTC isn't working then there is your fix. Even my Losmandy G11 recommend to change it every 6 months but that change from mount to mount I guess. 


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#10 seawolfe

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Posted 08 October 2015 - 07:03 AM

Thanks.... 

 

Isn't it too early for an AVX to need this battery replacement ? Mine is maybe more than 3 years old and battery is still good.

No, I've had mine for nearly 2 1/2 years and had to have changed the battery once.  Also disassembled that same area to repair the power connector.  On that job, I not only re-soldered the wires to the connector but did an "upgrade" to keep the connector from spinning inside the housing which is what caused the failure in the first place.  I used a thick piece of hard rubber which was cemented around the connector in a "U" shape to keep it in one position.  Haven't had to open the assembly since.



#11 photonhunter

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Posted 26 February 2016 - 10:54 PM

This was very helpful -- my brand new AVX had a non-working RTC -- I turned RTC on and it would always come up Jan 2000 at 18:00:00

 

I took the battery out and checked it and it was good at 3V, so I reseated it, put everything back together and the RTC worked.

 

SO the battery was just not making good contact even though it was seated correctly.



#12 Jeff Morgan

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Posted 27 February 2016 - 12:55 AM

Thanks for the post!

 

Mine never has kept good time, from one new moon session to the next it has usually off by a couple of hours.

 

It has not been a big deal to enter the correct time, but this will be an easy project for the next full moon period.



#13 JoseBorrero

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Posted 27 February 2016 - 06:10 AM

I'm  glad this post is working! :waytogo:



#14 Vince Tramazzo

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Posted 27 February 2016 - 11:53 PM

Question.  When the mount is hooked up to an external power source, is the RTC running off it's small internal battery or external power?

 

I didn't see any info on the RTC battery in the user's manual.

 

Vince



#15 photonhunter

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Posted 28 February 2016 - 12:25 AM

My first guess is that it is running off the battery -- my reason for thinking that is when my battery was not making contact, with the RTC on, it would come up with Jan 2000 at 18:00:00 when the mount was powered up and the time would not tick up.   That was the first thing I noticed when I reseated the battery and powered it up the first time after getting the good battery connection was that the time displayed was Jan 2000 at 18:01:02 and the seconds were ticking up (e.g. about a minute had elapsed after I had applied power to the mount)

 

But this is just a guess on my part.



#16 MIKE64646

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Posted 18 November 2018 - 10:16 AM

i just changed my battery after reading this post. Now my AVX does not  to have the time and date reset every time i turn it on! Thanks! It also gave me the opportunity to tighten up the nut on the power plug in.



#17 JoseBorrero

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Posted 18 November 2018 - 10:36 AM

:waytogo:




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