I have a Canon AE-1 (not a program), it won't fire. Period. I have tried a brand-new battery-that I bought 25 minutes ago, the meter works and meters correctly. I have read whatever I could find, which led me to take off the bottom cover and test the electromagnet release. It works fine, and is clean. I have no shutter squeak, I have no other issues. I have taken the top cover off, and is all down to the shutter button. When depressed, it meters, but it just will not fire! Any ideas? Suggestions? How does this shutter circuit work?