It could be many things. For what it's worth, that's exactly the symptom
I wncountered on my MX when I first used it with the motor drive.
Something in the shutter release linkage had come slightly loose, and
the extra stress of a 5fps workload jammed it up. It took the tech at
my local camera shop around 10 seconds to fix it (once he'd opened up
the camera, of course, which took rather longer)
> Could the switch around the shutter button be broken and fixed in the locked
> position?
>
> Nick
>
> -----Original Message-----
> From: "Peter J. Alling"<[EMAIL PROTECTED]>
> Sent: 08/08/04 23:11:17
> To: "[EMAIL PROTECTED]"<[EMAIL PROTECTED]>
> Subject: Re: MX Shutter
>
> It might just need a CLA.
>
> Keith Whaley wrote:
>
> > The batteries in the MX are entirely for powering the exposure meter.
> > The shutter (including the self timer) is 100% mechanical.
> >
> > keith whaley
> >
> > Kostas Kavoussanakis wrote:
> >
> >> Hello,
> >>
> >> I now have an MX with a broken shutter. It will not cock, or it is
> >> cocked but the release won't activate it (am I right that it needs no
> >> batteries?) nor will the self-timer.
> >>
> >> Any pointers?
> >>
> >> Thanks,
> >>
> >> Kostas
> >
> >
> >
> >
>
>
>