...........
How do i identify a dead capacitor?
1 - Shutter will not fire.
2 - Film advance lever does not move past the 30 degree position.
3 - New batteries ( LR-44 or SR-44 1.5V, among others ) but shutter will still not fire.
4 - LEDs in viewfinder light up when the camera is turned on, but die and will not light up again if the shutter button is pressed......
Sounds like something else is wrong.What about if everything works meter etc but the camera just dosnt fire until battery is removed and center electrode earthed to the body
Thanks for this great info. Watched the video and it looks easy to fix with the right part. I have exactly the same issue with a Contax RTSII and Nikon FA. I think I am looking at the capacitor in this picture of the Contax. Can anyone confirm this and what would be a suitable replacement for it. Cannot see the Nikon capacitor underneath it's bottom cover, any ideas where this is located? Thank you for any responses.
View attachment 184073
Thank you George. I bought the Contax as jammed & not working. Was able to get it going and got all excited about using it with some SP Tamron adaptall2 lenses when it hiccuped and stopped. I will desolder the connections to pull it out and look for a replacement at the electronics store.The blue thing is a tantalum capacitor, they tend to fail to a short circuit and given enough current explode. I doubt there is much current available there. Looks more like a date code on this side, likely the value is on the other side. Also note it is polarized, replacement must go in the same way see the + marking.
Cheers #Minoltafan2904. That is awesome info. I also have an immaculate X-700 so I'll know what to do if it's capacitor dies. With the dead Nikon FA, if I stick the motor drive on it with a bit more battery power I can hear it click trying to fire, but same thing as the Contax, the light meter just goes out.Yes, the Capacitors on earlier models were made from Tantalum, later on they were made from other materials.
They do tend to short circuit without any kind of a warning, with my X-700 i actually heard a little "pop" when it short circuited, the capacitor is a 220uF 4V, not hard to find.
Have you finally repaired the camera? ThanksWith mint X-700 I have following problem - sporadically in P (program) and A mode it always shows underexposure (the bottom triangle in display), whatever the ISO, brightness of scene or aperture settings. The winding lever always works and shutter fires (in this cases some seconds exposure). In M mode speeds are always ~ correct. I replaced the bottom capacitor and nothing happened. I have no guts to remove top cover for second capacitor replacement.
Any idea?
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