At 11:48 PM +0000 6/28/05, Tim wrote:
Hi all -
I rescued an SE (1mb, 2 800k floppies) from the garbage man this
morning (literally, the garbage truck was just down the street when
I noticed the sad little box sitting at the curb between some
garbage bags and a very rusty lawn spreader). Although the case was
pretty dirty, it's in good shape, and has cleaned up nicely. When I
broke it open to do a pre-power-up inspection, I found two things
that concern me.
The first is a patch of corrosion on the bottom side of the logic
board, the origin of which has me guessing some. There is no sign of
any leakage on the top side of the board, but it looks like this one
may have spent some quality time in a garage or basement at one
point. If you like, see:
http://mysite.verizon.net/vze25xwa/P1010005.JPG (718K) which shows a
close-up of the area in question.
Now, before I power-up, I'd like to clean that area with some
alcohol and a soft brush. Now we come to part 2: this SE has the
PRAM battery soldered to the board. It still shows 3V, so I guess it
should be okay to use. But!
I'm worried about "wet cleaning" the bottom of the board with the
battery still installed. Seems like a recipe for disaster. So my
question: Is there a way to disable the battery without removing it
(ie: a jumper or something)? If not, might it be better to yank the
battery and figure out a way to replace it with a battery clip so
that battery changes in the future would be a (relative) breeze?
Alternative methods of cleaning up the corrosion? Thoughts? Comments?
The corrosion doesn't look like it came from the board. More like
something spilled into it (while it was upside down) or a mild case
of flooding maybe.
I would just clean it with 90% Isopropyl Alcohol and a plastic brush.
If it takes out the battery then it was likely nearly dead.
--
Clark Martin
Redwood City, CA, USA
Macintosh / Internet Consulting
"I'm a designated driver on the Information Super Highway"
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