Before doing any maintenance, please unplug the power of the panel to prevent electric shock
Please do not frequently switch the product on and off, doing so may shorten the product service life. After
the screen is switched off, please wait for a minimum of 3 minutes before switching it back on.
Do not use a hard object to write on the touch screen, doing so may scratch the LED.
Do not write on the screen using whiteboard or permanent markers as this would leave visible marks on the
glass of the screen.