Sounds like the main switch is shorted.
John
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----- Original Message -----
From: Tom Curlee <t_curlee@xxxxxxxxxxx>
To: <olympus@xxxxxxxxxxxxxxx>
Sent: Monday, July 05, 1999 7:51 PM
Subject: [OM] OM-2 battery short
> I recently picked up a clean OM-2 body super cheap. It was sold 'as-is',
> i.e. wouldn't work. Of course there weren't any batteries in it so I was
> hopeful. I put in new batteries and it worked perfectly, but then
wouldn't
> work at all a few minutes later. I pulled the batteries and found that
> there was a .25 Amp load on the battery! Later I found that the load
varies
> between 2.5 to 5 Ohms across the battery terminals when the shutter is
> cocked.
>
> I (don't listen, John H. :-)) pulled off the top and bottom covers and
> poked, prodded, pulled, moved, etc., etc. (about 3 hours worth of etcs.)
and
> found that the short goes from around 150 Ohms when shutter is released in
B
> to the 2.5 - 5 Ohms when shutter is cocked. The heavy load starts when
the
> wind lever is just barely moved.
>
> The area causing the short appears to be to the right of the lens (when
> looking at the lens from the front). From the bottom, pushing a vertical
> linkage (part of the cocking mechanism)forward will cause the short to go
> away (well, to about 1 MOhm), pushing the other way it goes to full load.
I
> suspect that I can get to the area causing the short if I can remove the
> lens mount assembly, shutter ring and all.
>
> The question is, can I peel back the leatherette covering, remove the 4
> mounting screws, and rotate the whole lens mount/shutter ring assembly up
> and out (still connected) without disconnecting the shutter string and
> wiring?
>
> Any suggestions or info??
>
> Thanks, Tom
>
>
>
>
>
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