Acer AL2021 AL2021 Service Guide - Page 15

OPERATING INSTRUCTIONS Chapter 2 Front Panel Definition This Section defines the front panel User Interface for Led Indictor and Key function. Key Definition: There are five keys defined in this system and described bellows. * Adjusting display settings External Controls 1. 2 3 4 < 5 > POWER AUTO OSD Function MINUS PLUS Power on/off Blue and Green : power on Blue : Power off Orange: in sleep mode If OSD is active, press to exit a selection in OSD. If OSD is inactive, press and the monitor will automatically optimize the position, focus and clock of your display. Press to view OSD. Press again to enter a selection in OSD. If OSD is active, press to select or adjust OSD options. If OSD is inactive, press once, then press the buttons marked < or > to adjust the volume. If OSD is active, press to select or adjust OSD options. If OSD is inactive, press once, then press the buttons marked < or > to adjust the volume. - 15 -