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Msteen1314
Tinkerer
Username: Msteen1314
Post Number: 47
Registered: 04-2010
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, January 29, 2012 - 08:28 pm: | 
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Having problems determining the root cause of a shutter release issue. Initially I thought it was a problem with the electromagnetic shutter button however I am no longer sure having had a look at it.
Here's what I see is happening:
When the bottom plate is removed, the shutter can be tripped manually. The green solenoid, which I believe trips the shutter appears to be working okay as there is movement when the shutter release button is depressed. I'm not sure however if it is moving enough.
The shutter will trip consistently when the camera lies on its back, when moved to another angle, the problem starts and the shutter will not fire.
With the motor drive on, the shutter will fire however when moved to a different position, the shutter stops firing but you can still hear the solenoid tripping.
At other times, the shutter seems to "partially " fire and when I take my finger off the shutter release and move the camera, it will trip on its own and complete the cycle.
I'm at a loss at this point.
The above scenario suggests that there may be something loose and while there is a rattle, the noise seems to be coming from just under the Contax logo in an area which houses a long spring related, I believe to the lens operation.
Any help would be appreciated.
Thanks
Martin |
Dirbel
Tinkerer
Username: Dirbel
Post Number: 61
Registered: 04-2008
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, January 30, 2012 - 01:40 am: |
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On the right side of the mirror box (looking from the back), there is a switch. If this switch does not have proper ground contact, it may cause the fault that you observe (according to the repair manual).
To get at this switch, you would have to remove the front panel of the camera.
Dirk |
Msteen1314
Tinkerer
Username: Msteen1314
Post Number: 48
Registered: 04-2010
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, January 30, 2012 - 10:39 am: |
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thanks Dirbel.
As this is moving a little further out of my comfort zone, is it possible to for you to send me a link to the relevant page(s)from the manual for guidance if it is available.
Thanks for taking the time to assist me in this, much appreciated.
Martin |
Dirbel
Tinkerer
Username: Dirbel
Post Number: 62
Registered: 04-2008
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, January 30, 2012 - 01:16 pm: |
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For a start, I could send you the assembling chart - that would give you an idea of what's ahead.
I haven't scanned the service manual yet.
Dirk |
Msteen1314
Tinkerer
Username: Msteen1314
Post Number: 49
Registered: 04-2010
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, January 30, 2012 - 01:42 pm: |
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Thanks Dirk, I've sent you a PM.
Martin |
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