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Compaq Presario A900 Compaq Presario A900 Notebook PC - Maintenance and Servic - Page 61

part number 462392-001., If it is necessary to replace the wireless antenna transceivers and cables

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12. Remove the display panel (2) from the display enclosure. The display panel is available using spare part number 462318-001. 13. Remove the eight Phillips PM2.0×4.0 screws (1) that secure the hinges to the display panel. 14. Remove the display hinges (2) from the display panel. The display hinges are available using spare part number 462392-001. 15. If it is necessary to replace the wireless antenna transceivers and cables, release the tabs (1) built into the display enclosure that secure the wireless antenna cables. Component replacement procedures 53

Section	Page
Product description	9
External component identification	13
Display components	13
Top components	14
Buttons, lights, and speakers	14
Keys	16
Pointing devices	17
Front components	18
Right-side components	18
Left-side components	19
Bottom components	20
Illustrated parts catalog	21
Serial number location	21
Computer major components	22
Display assembly components	27
Plastics Kit	28
Mass storage devices	29
Miscellaneous parts	30
Sequential part number listing	31
Removal and replacement procedures	35
Preliminary replacement requirements	35
Tools required	35
Service considerations	35
Plastic parts	35
Cables and connectors	36
Drive handling	36
Grounding guidelines	37
Electrostatic discharge damage	37
Packaging and transporting guidelines	38
Workstation guidelines	38
Equipment guidelines	39
Unknown user password	40
Component replacement procedures	41
Serial number	41
Computer feet	41
Battery	42
Camera module	43
Hard drive	45
Memory module	47
WLAN module	49
Optical drive	52
Switch cover and keyboard	54
Display assembly	58
Top cover	63
USB board	65
Fan	66
Speaker assembly	67
System board	68
Power connector cable	71
RTC battery	73
Digital media board	75
Heat sink	77
Processor	79
Setup Utility	81
Starting the Setup Utility	81
Changing the language of the Setup Utility	81
Navigating and selecting in the Setup Utility	82
Displaying system information	82
Restoring default settings in the Setup Utility	82
Using advanced Setup Utility features	83
Closing the Setup Utility	83
Setup Utility menus	83
Specifications	85
Computer specifications	85
17.0-inch, WXGA display specifications	86
Hard drive specifications	87
DVD±RW and CD-RW SuperMulti Double-Layer Combo Drive specifications	88
DVD±RW and CD-RW Combo Drive specifications	89
System DMA specifications	90
System interrupt specifications	91
System I/O address specifications	92
System memory map specifications	94
Screw listing	95
Phillips PM2.5×6.0 captive screw	96
Phillips PM3.0×4.0 screw	97
Phillips PM2.0×4.0 screw	98
Phillips PM2.5×9.0 screw	101
Phillips PM2.5×5.0 screw	104
Phillips PM2.5×7.0 screw	106
Backup and recovery	107
Recovering system information	107
Creating recovery discs	107
Backing up your information	108
When to back up	108
Backup suggestions	108
Using system restore points	109
When to create restore points	109
Create a system restore point	109
Restore to a previous date and time	109
Performing a recovery	110
Recovering from the recovery discs	110
Recovering from the partition on the hard drive	110
Connector pin assignments	111
Audio-out (headphone)	111
Audio-in (microphone)	111
External monitor	112
RJ-11 (modem)	113
RJ-45 (network)	114
S-Video-out	115
Universal Serial Bus	116
Power cord set requirements	117
Requirements for all countries and regions	117
Requirements for specific countries and regions	118
Recycling	119
Battery	119
Display	119