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on Mar 19, 2014 21:38:50 GMT
Posted: Mar 19, 2014 21:38:50 GMT
I just received a TL Super from shopgoodwill.com. I got it mainly for the attached Yashinon-DX 50mm f/1.7, which is in beautiful condition, but I was disappointed to find that the camera body is seriously locked up. Except for that it is in great cosmetic condition, and I'd like to get it working again if possible.
The shutter button depresses all the way with only normal spring resistance. The advance lever stops after a few degrees of rotation. The mirror is in the down position, but can be lifted to the up position, after which it returns to down. The aperture paddle is held in the forward position by spring pressure. The mirror lockup switch doesn't do anything when turned, and there doesn't seem to be much resistance to turning it. The self-timer turns and winds down, with a small click at the end, but it doesn't release the shutter.
I've tried moving the shutter curtains, and I've opened the bottom cover and applied a little naptha to try to loosen cocking mechanism, but that doesn't work.
Is there something I should move or reset to unlock it? Does this camera have a lever locking problem like the notorious Spotmatic lockup? Does anyone have any experience with unjamming these Yashica SLRs?
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on Mar 20, 2014 0:08:13 GMT
Posted: Mar 20, 2014 0:08:13 GMT
It might be something up under the top. A lever not catching right, or stuck in position. Since the mirror is down, I would say the shutter has run it's course, as the second curtain/blade (depending on what type of shutter it has) trips the mirror return. See if you can free up the winder by depressing the rewind button, and rolling the sprockets backwards. The fault appears to lie where the aperture paddle is released. I don't have the assembly chart for the Super, but on the Electro X, all the levers for the mirror and aperture paddle are on the film chamber side of the mirror box.
PF
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on Mar 20, 2014 3:31:23 GMT
Posted: Mar 20, 2014 3:31:23 GMT
Thanks for suggesting rolling the sprockets by hand. Actually, though, the rewind button is stuck down, and the sprockets spin both directions without resistance. The top cover will come off tomorrow, and I'll see if I need to take the front off as well.
I did notice quite a bit of corrosion on the plate under the curtain roller rachet nearest the back. Would it be safe to put a tiny drop of oil under that rachet?
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Join date: January 2014
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on Mar 20, 2014 20:45:25 GMT
Posted: Mar 20, 2014 20:45:25 GMT
I fixed the problem this afternoon. The mirror lock switch was loose, and inside the front the mirror locking lever was jammed upward. I lowered the locking lever, the shutter fired, and thereafter all was well.
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on Mar 21, 2014 1:36:04 GMT
Posted: Mar 21, 2014 1:36:04 GMT
Alright! Now, about that corrosion. Just clean it off, no need to oil it, as you never know where that might migrate to. You could put a drop of clear nail polish on it if it looks like something that will corrode again. Try to figure out just why it was corroded in the first place, then determine what you can do to prevent it from happening again. Could have just been some stray moisture.
PF
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