Acer TravelMate 4650 TravelMate 4150 / 4650 Service Guide - Page 27

"Acer eManager" on page 19 Hot Key Fn+F7 Fn+F8 Icon "Acer eManager" on page 19 Function Touchpad On/Off Description This key will cause the internal touchpad pointing device to be disabled/enabled . This is to prevent accidental system wake-ups from standby. Pressing this key a second time will re-enable the touch pad pointing device. BIOS check Internal AuxDev if not exist then BIOS empty return. Speaker On/Off This key will cause the audio output to the speakers to muted or disabled. Pressing this key a second time will reenable the audio output to the speakers. Fn+F11 Hot key Icon Hot key Icon Fn+F12 Fn+w Fn+y Numlock The Num-Lock feature is a standard AT keyboard feature. For Acer machines, Numlock is off by default and when the NumLock is on, the internal keyboard will act as numeric key padlock. If an external keyboard or keypad is present, then the NumLock will have the following definitions: Function Description Function Description T NumLock is on, when the system boots with external keyboard or numeric keypad. The external keyboard/keypad NumLock status is on and internal keyboard overlay numeric keys are disabled. T NumLock key can be typed on/off via the internal keyboard (Fn+F11) or the external keyboard/keypad, but NumLock affects the external keyboard/keypad only. "Acer eManager" on page 19T The NumLock shift state (NumLock is off) is NOT used for the cursor movement by "Acer eManager" on page 19 the internal keyboard numeric keys. "Acer eManager"Ton paTghee1s9tate of the NumLock is not changed by the attachment/removal (hot plug) of the external keyboard/keypad. "Acer eManager" on page 19 This is to support the attachment of an external numeric keypad. The user may use the internal keyboard for full alphabet typing, and the external keypad for numeric entry. The state of the NumLock is not changed by the attachment/removal of the external keyboard (hot plug). Scroll Lock The Scroll Lock is a standard AT keyboard feature. Volume up These keys can increase or decrease the brightness of the LCD back light. This function should be handled by the Analog function within the keyboard controller. Brightness will step up/down one unit as each time these keys are pressed. Volume down Decreases the sound volume. 18 Chapter 1