Nned help with a couple of SX70 Alphas

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trythis

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I have two of these and they are both exhibiting the same behavior.

Here is what happens:
Insert cartridge, close the door, and the shutter closes.
I manually run the gears a bit and run a full cycle. Sometimes it catches and will complete a normal cycle clunk (mirror), whir clickthunk and goes back to the proper start position.

At this point, the shutter is open, the mirror is up and I can see through the lens.

After that, when I press the button and the shutter closes until I let go, much like the B shutter setting on many cameras. But that's all it does.

Both cameras respond the same way which makes me think there is something wrong with my battery setup.

I am using cells from a 9 volt battery to power the cameras. (5 AAAA cells generate 7 volts, using 4 to get 6V was not enough to get any response because they came out just under 6v.)


I dont have an empty film holer witha good battery, so I had to make something and I dont wanna blow $20+ on dead cameras.

Any help or advice would be wonderful.
 

gone

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You have film in it? According to the specs, the film pack has a 6V battery that is needed to power the camera's electronics. I can't figure out from your post exactly what is going on there. I have had cameras that required certain batteries and simply substituting different ones to get the right voltage wouldn't work, they needed the called-for battery to get the correct amperage too.
 

peteyj10

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You're going to need a proper film pack/battery combination to properly test that camera. There's probably someone here who can ship you an empty film pack with a working battery. Heck, I probably have an empty Impossible pack somewhere in my apartment, but that might take a day of cleaning to find.
 
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trythis

trythis

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I think you guys might be right about the film packs, I just dont have any and don't know anyone that has a polaroid to get a pack from.

I think it may be that my taped together battery is just not getting enough conductivity to pull the amps through.
 

Fixcinater

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I'll get those packs sent to you this week. Wait till you get the packs before pulling the cameras apart.
 
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trythis

trythis

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That would be awesome, I just hope I haven't burned anything up at 7 volts.
 
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