HP 550 manual

Page 64

3.Turn the computer right-side up, with the front toward you.

4.Open the computer as far as possible.

5.Disconnect the display panel cables (1) and (2) from the system board.

6.Remove the wireless antenna cables (3) from the clips and routing channels built into the top cover.

7.Remove the four slotted Torx ST8M2.5×7.0 screws (1) that secure the display assembly to the computer.

CAUTION: Support the display assembly when removing the following screws. Failure to support the display assembly can result in damage to the display assembly and other computer components.

8.Lift the display assembly (2) straight up and remove it.

56 Chapter 4 Removal and replacement procedures

Image 64

Contents HP 550 Notebook PC Page Safety warning notice Iv Safety warning notice Table of contents Computer Setup Screw listing Recycling Product description Hard drives Optical drivesWireless Integrated Wlan options by way of wireless module Diskette driveAudio ModemPower requirements Operating system PreinstalledPorts Keyboard/pointingRestore media Serviceability End-user replaceable partsExternal component identification Top componentsTouchPad Component FunctionButtons, lights, and speaker Top componentsKeys Fn keyFront components Right-side components Left-side components Bottom components Wireless antennae select models only Illustrated parts catalog Serial number locationComputer major components Computer major componentsDescription Spare part number Display assembly internal componentsKeyboards Optical drive connector board FanRTC battery BatteryIntel Core2 Duo processors Intel Celeron M processorsIntel 802.11b/g Wlan module for use in Thailand Intel 802.11a/b/g Wlan modulesBroadcom 802.11b/g Wlan modules Illustrated parts catalog Plastics Kit Item Description Spare part number Plastics Kit 456614-001Cable Kit Item Description Spare part number Cable Kit 456594-001Mass storage devices Miscellaneous parts Screw Kit Sequential part number listingSpare part Description Number Ukraine, the United Kingdom, and Uzbekistan Zaire, Zambia, and Zimbabwe Illustrated parts catalog Sequential part number listing Pata Removal and replacement procedures Preliminary replacement requirementsService considerations Tools requiredCables and connectors Typical electrostatic voltage levels Grounding guidelinesEvent 10% 40% 55% Packaging and transporting guidelines Equipment guidelines Material Use Voltage protection levelUnknown user password Component replacement procedures Serial numberComputer feet Battery Hard drive Page Wlan module Description Spare part number Page Memory module Optical drive Page Switch cover Page Keyboard For use Spare part numberPage Page Speaker Description Spare part number Speaker 456593-001Display lid switch module Display assembly Page Page Page Page Top cover Description Spare part number Top cover 495399-001Page Page TouchPad board and TouchPad button board Page Bluetooth module System board Page Page Page Fan Description Spare part number Fan 431312-001Page Heat sink Page Processor Page Modem module Page RTC battery Description Spare part number RTC battery 449137-001ExpressCard assembly Page Computer Setup Starting Computer SetupNavigating and selecting in Computer Setup Using Computer SetupRestoring factory settings in Computer Setup File menu Computer Setup menusSelect To do this Diagnostics menu Security menuSystem Configuration menu DisableSelect Disconnected Computer specifications SpecificationsMetric Inch, Wxga display specifications Hard drive specifications 250-GB 160-GB 120-GBAccess time Transfer modeApplicable disc Read WriteDVD/CD-RW Combo Drive specifications Applicable disc Read WriteSystem DMA specifications Hardware DMA System functionSystem interrupt specifications Hardware IRQ System functionSystem I/O address specifications Address hex System function shipping configurationVGA System memory map specifications Size Memory address System functionScrew listing Phillips PM2.0×5.0 captive screw Color Quantity Length Thread Head diameter BlackPhillips PM2.5×12.0 captive screw Color Quantity Length Thread Head diameter Silver 12.0 mmPhillips PM3.0×4.0 screw Color Quantity Length Thread Head diameter SilverPhillips PM2.5×4.0 screw Slotted Torx ST8M2.5×7.0 screw Page Phillips PM2.0×4.0 screw Page Torx T8M2.5×9.0 screw Torx T8M2.5×3.0 broadhead screw Torx T8M2.5×4.0 screw Page Phillips PM2.0×2.0 broadhead screw Torx T8M2.5×6.0 screw Color Quantity Length Thread Heat width BlackPhillips PM2.0×6.0 screw Torx T8M2.0×4.0 screw Phillips PM2.5×7.0 screw Phillips PM2.5×7.0 captive screw Phillips PM2.5×10.0 captive screw Color Quantity Length Thread Head diameter Silver 10.0 mmPhillips PM2.0×8.0 screw Backup and recovery Overview Backup and recovery in Windows VistaBacking up your information Performing a recovery Using the Windows recovery toolsUsing f11 Select Repair your computer Backup and Recovery in Windows XP Recovering your information Connector pin assignments Pin SignalAudio-out headphone Audio-in microphoneExternal monitor RJ-11 modem RJ-45 network Universal Serial BusPower cord set requirements Requirements for all countries and regionsRequirements for specific countries and regions Country/region Accredited agency Applicable note numberRecycling BatteryDisplay Page Page Page Page Page Index Page Page DVD

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