HP PROBOOK 4520S Maintenance And Service Manual page 8

Component replacement procedures ........................................................................................ 53
5 Computer Setup ............................................................................................................ 122
Computer Setup ................................................................................................................... 122
viii
Grounding guidelines .............................................................................................. 50
Electrostatic discharge damage .................................................................. 50
Packaging and transporting guidelines ........................................ 51
Workstation guidelines .............................................................. 51
Equipment guidelines ................................................................. 52
Service tag ............................................................................................................. 53
Computer feet ......................................................................................................... 54
Battery ................................................................................................................... 55
Switch cover and keyboard ...................................................................................... 56
Memory module ...................................................................................................... 60
Optical drive .......................................................................................................... 61
Power button board ................................................................................................. 63
Speakers ................................................................................................................ 65
Thermal shield ........................................................................................................ 67
WLAN module ........................................................................................................ 70
WWAN module ..................................................................................................... 76
Heat sink and fan .................................................................................................... 78
Processor ............................................................................................................... 83
Palm rest ................................................................................................................ 84
Hard drive ............................................................................................................. 87
Display assembly on computers with 17.3-in displays .................................................. 89
Display assembly on computers with 15.6-in displays .................................................. 96
Top cover ............................................................................................................. 103
RTC battery .......................................................................................................... 107
Bluetooth module .................................................................................................. 109
Modem module ..................................................................................................... 110
Audio board ......................................................................................................... 112
System board ....................................................................................................... 114
USB connector assembly ........................................................................................ 117
RJ-11 connector assembly ....................................................................................... 119
Power connector assembly ..................................................................................... 120
Starting Computer Setup ........................................................................................ 122
Using Computer Setup ........................................................................................... 122
Navigating and selecting in Computer Setup ............................................. 122
Restoring factory settings in Computer Setup .............................................. 123
Computer Setup menus .......................................................................................... 124
File menu .............................................................................................. 124
Security menu ........................................................................................ 126
System Configuration menu ..................................................................... 127