Manfrotto 522P Instructions Manual page 6

Fixed mode zoom
Rotate the knob right (or left, dependent on the zoom direction) to zoom tele. Zoom speed is always constant, limited to the speed indicated by LED.
Rotate the knob left (or right, dependent on the zoom direction) to zoom wide. Zoom speed is always constant, limited to the speed indicated by LED.
Record start/stop
Press the button once to start recording.
Press the button again to stop recording.
NOTE! Camera status connection is sensed through RECORD wire.
Keeping the record button pressed for more than 2 seconds will make the controller to go back into analog mode
Setting custom speed mode
Select one of the pre-defined zoom speed modes (i.e. fastest speed, progressive mode). Rotate the zoom wheel and zoom with speed you prefer.
Press the custom speed button while you are zooming and keep it pressed for approx. 1 sec, until the low battery LED will light.
The new speed limit was stored in microcontroller internal flash memory.
Custom speed reprogramming may be done practically unlimited number of times (min. 1.000.000,- times).
Zoom direction customization
To change the zoom direction keep pressed simultaneously "digital" and "slowest speed" buttons until the battery low LED will light off.
The buttons must be kept pressed for at least 1 second.
The new zoom direction information will be permanently stored in the controller's internal flash memory and restored after each power off.
Zoom direction reprogramming may be done practically unlimited number of times (min. 1.000.000,- times).
6