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micky micky is offline
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Default Follow-up on wet camera / May need battery

On Mon, 12 Mar 2012 13:12:07 +0000 (UTC), Jules Richardson
wrote:

On Mon, 12 Mar 2012 00:54:28 -0400, micky wrote:
BTW, if I were a fully equipped panasonic camera shop, or maybe any
electronic camera shop, I would have extension cables. The manual has
part numbers for them. A set of 5 lets all the parts sit several inches
from the other parts, so one can fiddle, then check if the camera works
without the time it takes to reassemble the camera.


I remember doing that with an LV-ROM player (like a CD-ROM, but using
Laserdiscs, something of a rare beast) - there were about 20 separate
PCBs in the machine, and it was impossible to work on it and test without
extension cables.


I'll bet.

Looked around. Everything looked good except I found that there is
another battery soldered in place (in addition to the rectangular
battery one removes and charges in the charger) . It has white crystals
underneath it, just a little but I know it's too much, and it measures
25 millivolts instead of 3 volts!


It's definitely a battery? Mention of it being tied to the shutter
mechanism just made me wonder if it was a discharge capacitor for the
flash rather than a battery at all.


Definitely a battery. It looks like one, it has a + sign peeking out
from under the solder tab which is spot welded or something to the
top, it leaks like a battery, it's in the PCB layout and marked
b8001, b8001 is in the parts list called battery, and in the schematic
with a battery symbol, plus there is a section on removing "b8001, the
battery". Okay, I'm sure this is more proof than needed. :-)
Oh, and the part number is on the web, listed as a Lithium-Manganese
dioxide rechargable battery. I think not everywhere does it say
rechargeable, but it does at the Panasoonic site.

So, I need a battery again. Last time it was for a laptop, and I was
able to remove a coin battery holder from a very old computer mobo, or
maybe I bought one at radio shack after that, and run a wire to outside
the laptop, but I don't want to do that for a cute very little camera,
with no already-existing holes. And I'm not sure I can get this battery
at all, in any physical size.


Well, if it is a battery, do you know if it's a rechargeable or not? If
it's not, then as a quick test I'd desolder it I think, run wires to the
outside world, then loosely reassemble the camera - hook the wires up to
a couple of 1.5V batteries and see if the camera works. If it still


That's a very good idea. I should have thought of it. I might even
be able to reassemble the camera that way if I only install the top
circuit board and not the outside top.


doesn't work then you've got other faults to find and can work on them
(or give up! :-) without having spent any money.


That sounds good.

cheers

Jules