There are two different resets on the 760CZi. The Direction and Depth.
Resetting Direction:
Turn system on, Press and hold the “A” and “B” buttons at the same time until the menu pops up. Press the “A” button once, this screen should say camera setup. While letting the camera hang not to far from your hands turn it slowly counter clockwise. Once the numbers stop changing press the “A” button twice, you are done.
Resetting Depth:
While the camera is out of the water, Press and hold the “B” button until the depth goes to “0”.
Reminder, always turn your system on before you put your camera in the water.