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HP 6720s HP Compaq 6720s Notebook PC - Maintenance and Service Guide - Page 37

Top cover includes TouchPad board and cable, and TouchPad button board and cable

UPC - 883585979370

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Spare part Description number 456624-231 Keyboard for use in Slovakia 456624-251 Keyboard for use in Russia 456624-281 Keyboard for use in Thailand 456624-291 Keyboard for use in Japan 456624-AB1 Keyboard for use in Taiwan 456624-AD1 Keyboard for use in South Korea 456624-B31 Keyboard for use in the Netherlands 456624-B71 Keyboard for use in Sweden and Finland 456624-BA1 Keyboard for use in Slovenia 456624-BB1 Keyboard for use in Israel 456624-BG1 Keyboard for use in Switzerland 456624-DD1 Keyboard for use in Iceland 456624-DJ1 Keyboard for use in Greece 456797-001 DVD/CD-RW Combo Drive (includes bezel and bracket) 456798-001 DVD±RW and CD-RW Super Multi Double-Layer Combo Drive with LightScribe (includes bezel and bracket) 456799-001 DVD±RW and CD-RW Super Multi Double-Layer Combo Drive (includes bezel and bracket) 456800-001 Switch cover (includes button board and cable) 456801-001 15.4-inch, WXGA display assembly (includes 2 WLAN antenna transceivers and cables) 456802-001 15.4-inch, WXGA display assembly with BrightView (includes 2 WLAN antenna transceivers and cables) 456803-001 Top cover (includes TouchPad board and cable, and TouchPad button board and cable) 456804-001 Base enclosure (includes rubber feet) 456805-001 Optical drive connector board 456806-001 Display hinges (includes left and right hinges) 456807-001 Display bezel 456808-001 Display enclosure (includes 2 wireless antenna transceivers and cables) 456864-001 6-cell, 47-Wh Li-ion battery 456865-001 6-cell, 55-Wh Li-ion battery 457012-001 80-GB, 5400-rpm hard drive (includes bracket) 457013-001 120-GB, 5400-rpm hard drive (includes bracket) 457014-001 160-GB, 5400-rpm hard drive (includes bracket) 459462-001 Intel Celeron M 530 1.73-GHz processor (1-MB L2 cache, 533-MHz FSB, includes replacement thermal material) 459463-001 Intel Core 2 Duo T7250 2.00-GHz processor (2-MB L2 cache, 800-MHz FSB, includes replacement thermal material) Sequential part number listing 29

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
Illustrated parts catalog	21
Serial number location	21
Computer major components	22
Plastics Kit	29
Cable Kit	30
Mass storage devices	31
Miscellaneous parts	32
Sequential part number listing	33
Removal and replacement procedures	39
Preliminary replacement requirements	39
Tools required	39
Service considerations	39
Plastic parts	39
Cables and connectors	40
Drive handling	40
Grounding guidelines	41
Electrostatic discharge damage	41
Packaging and transporting guidelines	42
Workstation guidelines	42
Equipment guidelines	43
Unknown user password	44
Component replacement procedures	45
Serial number	45
Computer feet	46
Battery	47
Hard drive	48
WLAN module	50
Memory module	53
Optical drive	54
Switch cover	55
Keyboard	58
Speaker	61
Display lid switch module	62
Display assembly	63
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
Torx T8M2.5×7.0 screw	109
Phillips PM2.0×4.0 screw	111
Torx T8M2.5×9.0 screw	114
Torx T8M2.5×3.0 broad-head screw	115
Torx T8M2.5×4.0 screw	116
Phillips PM2.0×2.0 broad-head screw	118
Torx T8M2.5×6.0 screw	119
Phillips PM2.0×6.0 screw	120
Torx T8M2.0×4.0 screw	121
Phillips PM2.5×7.0 screw	122
Phillips PM2.5×7.0 captive screw	123
Phillips PM2.5×10.0 captive screw	124
Phillips PM2.0×8.0 screw	125
Backup and recovery	126
Creating recovery discs in Windows VIsta	126
Backing up your information in Windows Vista	127
When to back up	127
Backup suggestions	127
Backing up specific files or folders	128
Backing up the entire hard drive	128
Creating recovery points	129
Scheduling backups	129
Performing a recovery in Windows Vista	130
Performing a recovery from the recovery discs	130
Performing a recovery from the hard drive	130
Initiating a recovery in Windows	131
Initiating a recovery from the hard drive recovery partition	131
Creating recovery discs in Windows XP	132
Backing up your information in Windows XP	133
When to back up	133
Backup suggestions	133
Backing up specific files or folders	134
Backing up the entire hard drive	134
Creating recovery points	135
Scheduling backups	135
Performing a recovery in Windows XP	136
Performing a recovery from the recovery discs	136
Performing a recovery from the hard drive	136
Initiating a recovery in Windows	137
Initiating a recovery from the hard drive recovery partition	138
Connector pin assignments	139
Audio-out (headphone)	139
Audio-in (microphone)	139
External monitor	140
RJ-11 (modem)	141
RJ-45 (network)	142
Universal Serial Bus	142
Power cord set requirements	143
Requirements for all countries and regions	143
Requirements for specific countries and regions	144
Recycling	145
Battery	145
Display	145