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    Losing Time

    Just out of curiosity what would cause a modern HU to lose time? Battery and alternator are fine. Wiring behind the HU is fine. Over a month it will lose like 3 minutes. Over 2 months it loses almost 9 minutes and stops losing time.

    I know back in the day they used to basically have a CMOS battery in them that would keep time.

    Any ideas?



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    Re: Losing Time

    Depends, did you get it in a giveaway?



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    Re: Losing Time

    Headunits definently don't use a CMOS. The point of the CMOS is to store data when the unit receives no power. Unplug the harness from your headunit and poof all your data is erased. Since the headunit receives constant power it's most likely stored in a less temporary RAM memory. Since its not the memory that's causing it, something with the actual processing is fvcked




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    Re: Losing Time

    It's not synced wirelessly like your phone is. Pretty much all clocks that aren't will drift a bit, at varying rates.

    My eclipse is a bit fast. Over the course of a year it's usually about 5 minutes ahead of what my phone says.



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    Re: Losing Time

    Quote Originally Posted by Kangaroux View Post
    Headunits definently don't use a CMOS. The point of the CMOS is to store data when the unit receives no power. Unplug the harness from your headunit and poof all your data is erased. Since the headunit receives constant power it's most likely stored in a less temporary RAM memory. Since its not the memory that's causing it, something with the actual processing is fvcked
    Not necessarily, my 800PRS was unplugged, shipped to me, and it still had all of his processing stored.



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    Re: Losing Time

    Quote Originally Posted by 06goat View Post
    Not necessarily, my 800PRS was unplugged, shipped to me, and it still had all of his processing stored.
    Then that's a feature they added into the 880, which I'm not surprised since it's a high end unit




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    Re: Losing Time

    Quote Originally Posted by 06goat View Post
    Not necessarily, my 800PRS was unplugged, shipped to me, and it still had all of his processing stored.
    but what time was it? My 880 kept my eq settings, but im pretty sure the clock would reset.



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    Re: Losing Time

    You're headunit can time travel...


    *duh*




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    Re: Losing Time

    Quote Originally Posted by Kangaroux View Post
    Then that's a feature they added into the 880, which I'm not surprised since it's a high end unit
    Alpine CDA decks can store data even after they have been unplugged. Now if they sit for a long period of time they will go back to default settings, how long I do not know.



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