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Author Topic: RTC circuit in Amiga 3000T  (Read 1700 times)

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Offline nscaleworldTopic starter

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RTC circuit in Amiga 3000T
« on: July 13, 2012, 09:16:46 PM »
I would like to do the CR2032 coin battery install in my Amiga 3000T.  I was wondering if I could desolder and remove R192 and replace it with a 1N60 diode.  Also, I noticed that there is both +5 volts and +12volts in this circuit.  How exactly does the charging circuit work and can I remove it completely?  I have to redo the zip memory, because I mixed up SC and PM zips, so I might as well take care of the battery issue too.  The battery area of the motherboard is clean.
Amiga 500 (like new in box) , Amiga 2000 (like new in box) , Amiga 2500 (like new in box) , Amiga 3000T (like new) , 2 - Amiga 500 Towers , AmigaOne with OS 4.1
 

Offline nscaleworldTopic starter

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Re: RTC circuit in Amiga 3000T
« Reply #1 on: July 14, 2012, 04:09:13 AM »
Why is R192 there, what does it do?  What parts make up the charging circuit and can they be removed?
Amiga 500 (like new in box) , Amiga 2000 (like new in box) , Amiga 2500 (like new in box) , Amiga 3000T (like new) , 2 - Amiga 500 Towers , AmigaOne with OS 4.1