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Old 07-24-2005, 08:45 PM   #1
melott
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Default A2000 Battery backed clock circuit
Can someone tell me where to find the A2000
battery backed clock circuit diagram.
(something a dummy can read)
I'm trying to repair the clock circuit on my
A2K and don't know how the circuit works.
I installed a new battery and it doesn't work.
(won't hold the time)
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Stealth ONE 8-)
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Old 07-25-2005, 01:21 AM   #2
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Default Re: A2000 Battery backed clock circuit
I'm waiting for Chain to scan service manuals for a2000, those should be helpful to you too.
BTW, you can easily find a501 schematics, maybe its similar in design
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Old 07-25-2005, 03:44 AM   #3
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Default Re: A2000 Battery backed clock circuit
Sorry, but im very busy now guys (most coworkers have vacancies now aggrrr). I will scan it for sure, so gimme a little time i think clock diagram is the same for a500+ and a501: one IC, one crystal, one baterry and some passives .)
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Old 07-25-2005, 06:02 AM   #4
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Default Re: A2000 Battery backed clock circuit
I documented all this a while ago:
http://amiga.serveftp.net/RTCrepair.html

It's aimed at the A4000D, but the theory of operation is pretty much the same in the A2000.
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