How do I use the hotkeys and key combinations on my Aspire One? The computer uses hotkeys or key combinations to access most of the computer's controls like screen brightness and volume output. To use a hotkey to perform a specific function, press and hold down the Fn key, press the system key with the desired image on it, and then release both keys. To cancel the function, repeat the sequence. For Aspire One models: AOA-150, AOD-110, AOD-150, AO531h: Hotkey Icon Function Description Fn + F1 Hot key help Displays the hot key help file. Fn + F2 System Properties Launch System Properties. Fn + F3 Power Options Launch Power Options. For Aspire One models: AO751h: Hotkey Icon Function Description Fn + F1 Power Options Launch Power Options. Fn + F2 System Properties Launch System Properties. Fn + F3 Bluetooth toggle Enables or disables the Bluetooth functionality, if equipped. All Aspire One models: Hotkey Icon Function Description Fn + F4 Sleep Puts the computer in Sleep mode. Fn + F5 Display toggle Switches display output between the display screen, external monitor (if connected) and both. Fn + F6 Screen blank Switches off the display backlight. Press any key to enable the backlight again. Fn + F7 Touchpad toggle Turns the internal touchpad on and off. Fn + F8 Speaker toggle Turns the speakers on and off. Fn + F11 Num Lk Num Lock Enable or disable the Number Lock function. Fn + F12 Scr Lk Scoll Lock Enable or disable the Scroll Lock function. Fn + Right Arrow Brightness up Increases the screen brightness. Fn + Left Arrow Brightness down Decreases the screen brightness. Fn + Up Arrow Volume up Increases the sound volume. Fn + Down Arrow Volume down Decreases the sound volume.
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