HP CQ42-195TX, CQ42-109TU, CQ42-103TU, CQ42-275TX, CQ42-276TU, CQ42-168TU, CQ42-189TX, CQ42-160TX Enww

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3.Remove the five Phillips PM2.5×6.5 screws (2), the two Phillips PM2.5x4.0 screws (3), and the four Phillips PM2.5x3.0 screws (4) that secure the top cover to the base enclosure.

4.Turn the computer display-side up with the front toward you.

5.Open the computer as far as possible.

6.Release the ZIF connector to which the touchpad (1) is connected and disconnect the cable from the system board.

7.Release the ZIF connector to which the touchpad button board cable (2) is connected and disconnect the cable from the system board.

8.Disconnect the speaker cable (3) from the system board.

66 Chapter 4 Removal and replacement procedures

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Contents Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC First Edition March Document Part Number MSG revision history Revision Publication date DescriptionIv MSG revision history Safety warning notice Vi Safety warning notice Table of contents Setup Utility 109 131 Product description Chipset Intel CeleronGraphics Intel UMA Integrated/HD Graphics with Category Description HP G42 150-199 100-149 Intel UMA Integrated/GMA 4500M GL40150-199 100-149 ATi Discrete PCI Express x Graphics Switchable Discrete GraphicsMemory Hard drives 35-cm 2.5-inOptical DrivesDiskette drive CameraWireless Local area network Wlan options by Way of wireless ModuleModem EthernetMedia card ExternalPorts Power Operating Preinstalled SystemServiceability End-user Replaceable parts KeyboardEnww External component identification Identifying the hardwareTouchPad Top componentsComponent Description Lights Control Panel System and Security Power Options Button and speakersKeys Fn keyDisplay Right-side components Left-side components Bottom components Wireless antennas Additional hardware components Enww Illustrated parts catalog Serial number location35.6 cm 14-in, WXGA, BrightView display assembly Computer major componentsPower button board includes cable Description Spare part numberKeyboards Touchpad button board includes cableSpeaker assembly includes cable Wlan module Atheros AR9285 802.11 a/b/g/n 2x2 WiFi adapter Intel Centrino Wireless-N 1000 802.11b/g/nBroadcom 4312G 802.11b/g WiFi Adapter halogen free Description Spare part number Memory modulesBT3.0+HS ready for models 1.2 and 1.3 only Bluetooth module for models 1.0, 1.1 and 1.3 only BatteryEnww Display assembly components 592144-001Webcam module Display back coverDisplay rubber display kit not illustrated Plastics Kit Item Description Spare part number Plastics kit 600190-001Mass storage devices Item Description Spare part number Power cord, AC, 3 wire, black, 1.83-m Miscellaneous partsDescription Spare part number AC adapters Rubber kitSequential part number listing Spare part Description NumberZimbabwe 600164-001 Display back cover, Presario, biscotti Enww HP, white for models 1.1 only HP, charcoal for models 1.2 and 1.3 only HP, velvet red for models 1.2 and 1.3 only Enww Removal and replacement procedures Preliminary replacement requirementsService considerations Tools requiredCables and connectors Drive handlingGrounding guidelines Electrostatic discharge damageTypical electrostatic voltage levels Event 10% 40% 55%Packaging and transporting guidelines Equipment guidelines Material Use Voltage protection levelComponent replacement procedures Serial numberComputer feet Description Spare part number Rubber Feet Kit 600184-001Battery Hard drive Enww Enww Optical drive Enww Wlan module Enww Enww Memory module Enww Keyboard Enww Top cover Enww Enww Speaker assembly Description Spare part number Speaker assembly 600189-001Power button board TouchPad button board Modem module Enww Bluetooth module USB board Power connector cable Display assembly Enww Enww Enww Enww Enww Enww System board Enww Enww Enww Optical drive Sata cable and connector Enww RTC battery Description Spare part number RTC battery 602745-001Enww Fan/heat sink assembly Subsystem memory includes thermal replacement materialEnww Enww Processor Enww Enww Setup Utility Computer Setup in WindowsStarting Setup Utility Using Setup UtilityNavigating and selecting in Setup Utility Displaying system informationRestoring default settings in Setup Utility Setup Utility menus Exiting Setup UtilityMain menu Security menuDiagnostics menu System Configuration menuPrimary Hard Disk Self Test Computer Setup in Linux Starting Computer SetupUsing Computer Setup Navigating and selecting in Computer SetupRestoring factory settings in Computer Setup Computer Setup menus File menuSecurity menu System Configuration menu Enww Enww Specifications Computer specifications35.6-cm14.0-in display specifications Hard drive specifications Random access time Transfer modeApplicable disc Cache buffer Data transfer rateBD-ROM, BD-ROM-DL, BD-R, BD-R-DL, BD-RE, BD-RE-DL, DVD-ROM System resource specifications Select Start ComputerBackup and recovery WindowsCreating recovery discs Backing up your information Using Windows Backup and Restore Performing a recovery Using system restore pointsRecovering from the recovery discs Select Start All Programs Recovery Manager Recovery ManagerLinux backup and recovery Enww Connector pin assignments Pin SignalAudio-out headphone Audio-in microphoneExternal monitor RJ-11 modem RJ-45 networkHdmi Universal Serial Bus Enww Power cord set requirements Requirements for all countries or regionsRequirements for specific countries or regions Country/region Accredited agency Applicable note numberRecycling BatteryDisplay Enww Display Enww Enww Enww Symbols/Numerics IndexInverter USB Enww

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