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HP 550 HP 550 Notebook PC - Maintenance and Service Guide - Page 24

Illustrated parts catalog, Description, Spare part number

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Item (1) (2) (3) Description Display assemblies (include 2 WLAN antenna transceivers and cables) 15.4-inch, WXGA BrightView Display internal components: Display enclosure (includes 2 WLAN antenna transceivers and cables) Display hinges (includes left and right hinges) Display inverter Switch cover (includes button board and cable) Keyboards For use in Belgium For use in Brazil For use in the Czech Republic For use in Denmark For use in France For use in French Canada For use in Germany For use in Greece For use in Hungary For use in Iceland For use in Israel For use in Italy For use in Japan For use in Latin America For use in the Netherlands For use in Norway For use in Portugal For use in Russia For use in Saudi Arabia For use in Slovakia For use in Slovenia For use in South Korea For use in Spain For use in Sweden For use in Switzerland For use in Taiwan 16 Chapter 3 Illustrated parts catalog Spare part number 495385-001 495402-001 456806-001 456618-001 495388-001 495400-181 495400-201 495400-221 495400-081 495400-051 495400-121 495400-041 495400-DJ1 495400-211 495400-DD1 495400-BB1 495400-061 495400-291 495400-161 495400-B31 495400-091 495400-131 495400-251 495400-171 495400-231 495400-BA1 495400-AD1 495400-071 495400-B71 495400-BG1 495400-AB1

Section	Page
Product description	9
External component identification	14
Top components	14
TouchPad	14
Buttons, lights, and speaker	15
Keys	16
Front components	17
Right-side components	18
Left-side components	19
Bottom components	20
Wireless antennae (select models only)	21
Illustrated parts catalog	22
Serial number location	22
Computer major components	23
Plastics Kit	29
Cable Kit	30
Mass storage devices	31
Miscellaneous parts	32
Sequential part number listing	33
Removal and replacement procedures	38
Preliminary replacement requirements	38
Tools required	38
Service considerations	38
Plastic parts	38
Cables and connectors	39
Drive handling	39
Grounding guidelines	40
Electrostatic discharge damage	40
Packaging and transporting guidelines	41
Workstation guidelines	41
Equipment guidelines	42
Unknown user password	43
Component replacement procedures	44
Serial number	44
Computer feet	45
Battery	46
Hard drive	47
WLAN module	49
Memory module	52
Optical drive	53
Switch cover	54
Keyboard	57
Speaker	60
Display lid switch module	61
Display assembly	62
Top cover	67
TouchPad board and TouchPad button board	70
Bluetooth module	72
System board	73
Fan	77
Heat sink	79
Processor	81
Modem module	83
RTC battery	85
ExpressCard assembly	86
Computer Setup	88
Starting Computer Setup	88
Using Computer Setup	89
Navigating and selecting in Computer Setup	89
Restoring factory settings in Computer Setup	89
Computer Setup menus	90
File menu	90
Security menu	91
Diagnostics menu	91
System Configuration menu	92
Specifications	94
Computer specifications	94
15.4-inch, WXGA display specifications	95
Hard drive specifications	96
DVD±RW and CD-RW Double-Layer Combo Drive specifications	97
DVD/CD-RW Combo Drive specifications	98
System DMA specifications	99
System interrupt specifications	100
System I/O address specifications	101
System memory map specifications	103
Screw listing	104
Phillips PM2.0×5.0 captive screw	105
Phillips PM2.5×12.0 captive screw	106
Phillips PM3.0×4.0 screw	107
Phillips PM2.5×4.0 screw	108
Slotted Torx ST8M2.5×7.0 screw	109
Phillips PM2.0×4.0 screw	111
Torx T8M2.5×9.0 screw	113
Torx T8M2.5×3.0 broad-head screw	114
Torx T8M2.5×4.0 screw	115
Phillips PM2.0×2.0 broad-head screw	117
Torx T8M2.5×6.0 screw	118
Phillips PM2.0×6.0 screw	119
Torx T8M2.0×4.0 screw	120
Phillips PM2.5×7.0 screw	121
Phillips PM2.5×7.0 captive screw	122
Phillips PM2.5×10.0 captive screw	123
Phillips PM2.0×8.0 screw	124
Backup and recovery	125
Backup and recovery in Windows Vista	126
Overview	126
Backing up your information	126
Performing a recovery	127
Using the Windows recovery tools	127
Using f11	128
Using a Windows Vista operating system DVD (purchased separately)	128
Backup and Recovery in Windows XP	130
Overview	130
Backing up your information	130
Performing a recovery	131
Recovering your information	131
Recovering the operating system and programs	131
Connector pin assignments	132
Audio-out (headphone)	132
Audio-in (microphone)	132
External monitor	133
RJ-11 (modem)	134
RJ-45 (network)	135
Universal Serial Bus	135
Power cord set requirements	136
Requirements for all countries and regions	136
Requirements for specific countries and regions	137
Recycling	138
Battery	138
Display	138