shutter button is locked

Discussion in '35mm Cameras' started by dmdsafe, Aug 16, 2007.

  1. dmdsafe

    dmdsafe Guest

    I have a Minolta X-700 MPS and one every ten shots the shutter button
    doesn't release the shutter. It will work fine one shot then won't the
    next. I've tried turning the power switch over to off then back to on
    if something mechanical was blocking it but still nothing. The film
    advance lever doesn't come out more then the resting position. Anyone
    have the same problem before? or know what is going wrong here? I am
    not afraid to take it apart as I have done this before, but I want to
    know as much as I can before I delve into the inner workings.
     
    dmdsafe, Aug 16, 2007
    #1
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  2. dmdsafe

    dmdsafe Guest

    if i set it aside it and wait it will continue to work when i come
    back to it. its probably something misaligned from being loose, or
    something sticky not allowing free movement.
     
    dmdsafe, Aug 16, 2007
    #2
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  3. What do you do to get it to release again -- wait 10 minutes, jiggle
    everything in sight, ...?
     
    Nicholas O. Lindan, Aug 16, 2007
    #3
  4. dmdsafe

    Jim Guest

    The button merely closes contacts on a switch. It can be extremely
    difficult to clean the switch because the parts are so small. At least this
    is the simplest explanation I can think up.

    Jim
     
    Jim, Aug 17, 2007
    #4
  5. dmdsafe

    dmdsafe Guest

    oh man, didnt think the battery would have anything to do with
    it...coincidentally all other slrs ive used never needed a battery for
    the shutter to release. I will replace the batteries(button cells) to
    see if that is the case.
     
    dmdsafe, Aug 17, 2007
    #5
  6. If the shutter release is electrical the camera energizes
    a solenoid to release the shutter...

    If the camera sticks when in the wound state, and if you
    hear a click from inside the camera when you press the
    shutter release then the switch is probably OK and something
    is stuck in the mechanical side of the mirror release -
    it's the mirror flipping up that hits the _shutter_
    release. Prime suspect is foam turned to goo.

    [When in the jammed state the mirror is down, correct?]

    If the camera is silent then the problem is most likely
    somewhere in the electrical system: switch, loose wire,
    bad contacts.

    You have put in a new battery and cleaned the battery
    contacts (?)

    Just came to me, the solenoid has probably got
    a foam shock absorber to keep noise and vibration down.
    If this foam has turned to goo then the camera may
    go silent. OTHO, if the release solenoid is gooed out of
    the way then the shutter should (or shouldn't) release
    itself at the end of the film lever wind stroke - the
    shutter would always be released.
     
    Nicholas O. Lindan, Aug 17, 2007
    #6
  7. dmdsafe

    Bob AZ Guest

    Been a while since I have fixed this problem but as I remember the
    shutter release solenoid under the bottom cover gets sticky and or
    dirty. I would clean it firts.. Battery must be good. Make sure you
    have the correct screwdriver to take thew cover off. It is NOT
    phillips.

    Bob AZ
     
    Bob AZ, Aug 17, 2007
    #7
  8. dmdsafe

    Stephen Guest

    Could be a bad capacitor or a dying battery.

    Stephen
    --
     
    Stephen, Aug 17, 2007
    #8
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