Acer Extensa 4420 TravelMate 4520/4220, Extensa 4420/4120 Service Guide - Page 141

battery charge 10 Bluetooth 10 Caps Lock 10 HDD activity 10 Num Lock 10 ODD activity 7 power 10 WLAN 10 subwoofer part number 89, 98 supervisor password 18 clear 20 S-Video/TV-out port 8 SWI dip switch system switch 86 System Block Diagram 83 system block diagram 83 system board part number 90, 99 removing 54 system board layout 84 system date 17 system features audio 2 communications 2 computing platform 1 display 2 graphics 2 I/O ports 3 keyboard 2 memory 1 operating system 4 power 3 status indicators 3 storage 1 utilities 4 system passwords changing 20 clear HDD password 21 clear supervisor password 20 HDD password 18 lost password 20 power-on password 18 Index reminders 19 removing 20 resetting 20 setting 19 status 18 supervisor password 18 user password 18 system security system passwords 18 system specifications environmental 4 industry standards 3 physical 4 security features 3 system time 17 system tour base view 9 easy-launch keys 11 front view, close 6 front view, open 5 left view 7 productivity keys 12 rear view 8 right view 8 status indicators 10 system utilities 4 BIOS Flash Utility 24 Launch Manager 25 Phoenix TrustedCore Setup Util- ity 13 T torque values 27 touchpad board, removing 50 bracket, part number 95, 104 cable connector 84 cable, part number 91, 100 location 5 troubleshooting 68 touchpad board part number 90, 99 troubleshooting AC adapter 67 battery pack 68 diagnostic procedure 65 131