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Dirbel
Tinkerer
Username: Dirbel
Post Number: 24
Registered: 04-2008
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, December 16, 2009 - 01:21 pm: | 
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I have a Yashica FR that shows the following behaviour:
When the shutter is not cocked, the meter works properly, as well as the battery check.
When the shutter is cocked, the meter stops working. Measuring at the wires that lead to the battery check circuit shows that something seems to short the battery when the shutter is cocked.
The eletronics used to work before I removed the top cover to fix the frame counter...
Does anyone have a schematic for this camera, or any suggestions?
Thanks in advance,
Dirk |
Mikel
Tinkerer
Username: Mikel
Post Number: 187
Registered: 07-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, December 17, 2009 - 09:05 pm: |
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When you tested the camera and found it not working correctly, was the top on or off?
Or was it not working in either case? |
Dirbel
Tinkerer
Username: Dirbel
Post Number: 25
Registered: 04-2008
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, December 18, 2009 - 01:48 am: |
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It doesn't work either way.
In the meantime I took the front cover off. There is switch at the mirror box that gets closed when the shutter is cocked. In this position the switch connects a wire that seems to be connected to the negative terminal of the battery to the camera chassis; which is connected to the positive terminal of the battery.
Obviously, I'm missing something.
Dirk |
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