HP EliteBook 820 G1 Maintenance And Service Manual page 6

Bottom .................................................................................................................................. 26
3 Illustrated parts catalog .................................................................................................. 27
Locating the serial number, product number, and model number .................................................. 27
Computer major components ................................................................................................... 29
Display assembly components ................................................................................................. 41
Plastics Kit ............................................................................................................................. 43
Mass storage devices ............................................................................................................. 44
Miscellaneous parts ................................................................................................................ 45
Sequential part number listing .................................................................................................. 48
4 Removal and replacement preliminary requirements ...................................................... 65
Tools required ....................................................................................................................... 65
Service considerations ............................................................................................................ 65
Grounding guidelines ............................................................................................................. 67
5 Removal and replacement procedures for Customer Self-Repair parts ............................. 71
Component replacement procedures ........................................................................................ 71
6 Removal and replacement procedures for Authorized Service Provider parts .................. 93
Component replacement procedures ........................................................................................ 93
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Plastic parts ............................................................................................................ 65
Cables and connectors ............................................................................................ 66
Drive handling ........................................................................................................ 66
Electrostatic discharge damage ................................................................................. 67
Packaging and transporting guidelines ....................................................... 68
Workstation guidelines .............................................................. 68
Service cover .......................................................................................................... 71
Battery ................................................................................................................... 73
Hard drive ............................................................................................................. 75
WWAN module ..................................................................................................... 78
Solid-state drive ...................................................................................................... 80
WLAN module ........................................................................................................ 82
Memory module ...................................................................................................... 84
Keyboard ............................................................................................................... 85
RTC battery ............................................................................................................ 93
Top cover ............................................................................................................... 94
Display assembly .................................................................................................... 98
TouchPad ............................................................................................................. 107
Card reader board ................................................................................................ 108
ENWW