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Re: [OM] More OM-10 fiddling...

Subject: Re: [OM] More OM-10 fiddling...
From: John Hermanson <omtech@xxxxxxxxx>
Date: Mon, 05 Oct 1998 16:48:24 -0400
That was a hard lesson I learned years ago, instead of trying to resolve all 
kinds of
odd problems in a camera, check the batteries first!
Glad it was an easy fix.

John

Shawn Wright wrote:

> In this case, the problem body was me! On a hunch, I put fresh batteries in 
> the
> body, instead of the one borrowed from my other OM-10. It now works perfectly,
> including the self timer and battery check! :-))
>
> The new 357s tested at 1.6V each, while the double height lithium I had been
> using from my other OM-10 showed only 2.25V. One more thing to watch for - 
> just
> because batteries seem to work in one body, don't assume they are good!
>
> On  5 Oct 98 at 10:50, John Hermanson wrote:
>
> > The body has multiple problems, but they can be remedied.
> >
> > John
> >
> > Shawn Wright wrote:
> >
> > > After quickly fixing my OM-10 which the camera shop jammed the lens
> > > mount on, I moved on to the free parts OM-10 which he gave me, hoping to
> > > find the sticky mirror, and use it as a practise run...
> > >
> > > Initially the body appeared dead, since the mirror only flipped up part 
> > > way
> > > when the shutter was fired. Here's what I found:
> > >
> > > -this early OM-10 has a metal bottom plate (s/n  352xxx), vs plastic in my
> > > newer 2496xxx model.
> > > -the battery check and self timer are dead, which John H. mentioned 
> > > recently
> > > -the shutter could be "reset" by moving a small lever under the bottom 
> > > plate,
> > > after which it would fire normally 5-20 times before sticking again, 
> > > leaving the
> > > mirror half up.
> > > -at this point, I found awful oil on the magnet problems: in "B" the 
> > > shutter
> > > would take about 1 sec to close after lifting my finger from the shutter. 
> > > This
> > > was what I was hoping for - a perfect candidate for my test.
> > > -I successfully removed the bottom of the mirror box, and found the tiny
> > > sticky magnet, hidden under some flexible circuit, which had to be pried
> > > loose.
> > > -I held the magnet contacts apart, and slide a sliver of thich paper 
> > > soaked in
> > > brake cleaner (degreaser) in between, and repeated several times.
> > > -Afterwards, the sticky magnet appears to be gone, but the occasional
> > > shutter/mirror jamming continues, and of course, the self timer/battery 
> > > check
> > > still does not work. Shutter and OTF meter appears intact in all modes 
> > > also.
> > >
> > > I think this could be made a workable last resort body, if I can 
> > > determine why
> > > the shutter jams. At this point, I'm not sure if it's mechanical or 
> > > electrical.
> > >
> ========================
> Shawn Wright
> Computer Systems Manager
> Shawnigan Lake School
> 250-743-6240
> swright@xxxxxxxxx
>
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