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Message |
    
Billpaul1949
Tinkerer
Username: Billpaul1949
Post Number: 1
Registered: 10-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, October 23, 2006 - 04:30 pm: | 
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Have 2 MINOLTA XE5s and an XE7. All have been through general overhaul/cleaning and repair for metering problems. All is perfect EXCEPT; all 3 camera's meters fluctuate wildly 90% of the time. f16 typically shows over 1/1000 shutter speed. Meter works perfectly if the depth of field button is out (not depressed). All were bought new and I/we love the cameras except they are now unuseable.
Suggestions?....anyone experienced anything similar and able to have it properly repaired?? |
Henry
Moderator
Username: Henry
Post Number: 29
Registered: 07-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, October 24, 2006 - 04:32 pm: |
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I'm a bit confused. You mean you had the cameras cleaned and overhauled THEN the meters got irratic?
Anyway, isn't the normal position of the dof button out? And it works perfectly in its normal position.
Tell me more...I'm very confused.
Henry |
Chenard
Tinkerer
Username: Chenard
Post Number: 1
Registered: 11-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, November 04, 2006 - 11:49 am: |
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When the depth of field button is in, a switch closes that takes the aperature wiper resistor out of the circuit, so the exposure is calculated only on the brightness seen by the cds cells. When the switch is out, then the wiper resistor for the aperature ring is also factored in. I would suggest checking the dof switch, and also the aperature wiper, as well as the thread that connects the aperature wiper to the lens follower.
Paul |
Chenard
Tinkerer
Username: Chenard
Post Number: 6
Registered: 11-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, November 07, 2006 - 08:59 am: |
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Okay I got it backwards. The normal position of the DOF button is in, not out.
So with the switch in, the aperature wiper is in the circuit. I would remove the top left cover of the camera and clean and inspect the aperature wiper and its variable resistor. You will see it under the ASA dial, and it is connected to the aperature follower on the lens mount via a small black thread and two little brass pulleys.
If this wiper is connecting intermittently, the needle will jump around as the circuit can't make up its mind about what aperature is being selected.
There are other faults that could cause this behaviour, but this is the most obvious one which would be affected by the DOF switch.
Good luck!
Paul |
Henry
Moderator
Username: Henry
Post Number: 38
Registered: 07-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, November 07, 2006 - 06:55 pm: |
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Paul, your analysis makes a lot of sense. I've been into several of these Minoltas and a few Leica R3's too. So I was willing to give a go at helping the original poster...if I understood the true problem ...and if they'd ever reply. But it looks like they came, asked, then left never to return.
Henry |
