Canon A720 IS does not turn on

May 27, 2009

- If you've tried all the above, and there's absolutely no reaction at all from the camera (no blinking lights, nothing), then it's likely a blown fuse. Unfortunately these are very tiny, internal to the camera, and are soldered to the circuit board. They're primarily a safety feature to prevent overheat and fire, and are not really meant to be replaced. Also there's likely another problem that caused the fuse to blow, so if you did replace the fuse, it can happen again (usually gummed up gears in the lens assembly). Sorry that I don't have any better suggestions for you.