Datavideo PTC-285W Instruction Manual page 20

No Function Keys
STR Button
b
AF Auto Focus/AI Auto-
Tracking On/Off Button
9
Back Button
10
Menu Button
11
STR Button
Please press this button and the "Preset 1 to Preset 4"
buttons to save your desired Preset.

After you desired setting values and camera lens
position are set, please press the "STR" button and
then press the button of your desired Preset number
from "Preset 1 to Preset 4". After that, the Preset is
set successfully.
Auto Focus Button/AI Auto-Tracking On/Off Button
Please press this button to turn on the Auto Focus function.
Please long-press this button for 2 seconds to turn on or
turn off the AI Auto-Tracking function.
Back Button
Please press the "Back" button to turn the camera head
back to the "Home" position. When the OSD menu is
opened, you can go back to the previous layer of the OSD
menu by pressing the "Back" button.
Menu Button
Please press the "Menu" button to open the OSD menu of
the PTC-285 camera on the external monitor.
20
Descriptions