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Author Topic: Does this sound like battery leakage damage?  (Read 1887 times)

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Offline ArcticSonTopic starter

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Does this sound like battery leakage damage?
« on: November 08, 2008, 03:40:08 PM »
Greetings!

I have a vintage 1989 A2000 on which I replaced a
moderately leaking battery about 4 years ago.  There
was some discoloration of the PCB in the area, but
no corrosion.  I just installaed a new (refurb) internal CD-ROM drive a few days ago, and the "new" battery still looks fine.

So the issue is, when the Amiga is powered on, the RTC stops.  With it off, it keeps great time.  For example,
if I set the date/time with a synch program just before
powering down on a Monday, I can go back a week later and
find the system date and time spot on at my next power-up.
If I have the system on for two hours, then check the time,
it matches the time I powered on.

Not sure if OS or other details are relevant, but I'm running OS 3.9, and a TekMagic 2060 w/RAM on-board.

Is this how this is supposed to work, or could battery leakage harmed a chip or trace in the RTC circuit with
this seemingly odd outcome?  Any chance the likely chip is still available?  I would like to keep the RTC functionality if possible, but know I could synch time at startup if needed (and remove the battery) too.

Thanks for any ideas!  
 

Offline ArcticSonTopic starter

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Re: Does this sound like battery leakage damage?
« Reply #1 on: November 09, 2008, 12:45:52 AM »
Thanks for the info and link to the jumper data, Castellan!
I will be buying and installing a USB board soon so will
have the case open this is definitely worth a look.  My oscilloscope days are long past but trying the jumper change I can still give a whirl.