How can we help you today?In order to enable the PgUp and PgDn function on your remote controller for the PX701-4K projector, please follow the instruction below:
Besides your video cable (HDMI), please connect an additional USB cable from the back of the PX701-4K projector to your PC/Laptop.
Change the control method to USB by entering your OSD menu -> System -> Control method -> USB (for visual representation please refer to the image below):
As a reminder, this function only works with a PC or Laptop.