AP9631 internal time is consistently slow

Anonymous user · ‎2021-07-08

BillP · ‎2021-07-08

Hi Sean,

Yes, this is strange sounding. The battery is there to retain date/time when the NMC is not powered up.

Could you take a picture on the top of the NMC with all of the components? There is a component on the board that deals with time - we refer to it as a time crystal. I suppose it could be faulty or sometimes there is a problem with it being damaged, crooked, or soldered incorrectly. I could at least eyeball it and see if there is anything obvious.

Since it is from 2013, do you know if it ever worked properly earlier in its life?

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Anonymous user · ‎2021-07-08

I'm hoping this is something simple...I noticed a little button battery on the card when I installed it? The card was manufactured in 2013 so not under warranty.

Since the settings appear to have been retained I kinda doubt the button battery is the issue.

BillP · ‎2021-07-08

Hi Sean,

Yes, this is strange sounding. The battery is there to retain date/time when the NMC is not powered up.

Could you take a picture on the top of the NMC with all of the components? There is a component on the board that deals with time - we refer to it as a time crystal. I suppose it could be faulty or sometimes there is a problem with it being damaged, crooked, or soldered incorrectly. I could at least eyeball it and see if there is anything obvious.

Since it is from 2013, do you know if it ever worked properly earlier in its life?