Enww | HP CQ42-219AX, CQ42-205AU, CQ42-220AX, CQ42-218AX, CQ42-203AU

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.

ENWW	Component replacement procedures 65

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HP CQ42-219AX, CQ42-205AU, CQ42-220AX, CQ42-218AX, CQ42-203AU, CQ42-210AU manual Enww

Contents

Compaq Presario CQ42 Notebook PC and HP G42 Notebook PC First Edition April Document Part Number Revision Publication date Description MSG revision history Iv MSG revision history Safety warning notice Vi Safety warning notice Table of contents Setup Utility 107 129 Product description AMD Turion Processor AMD Phenom Processor AMD Athlon Processor AMD Sempron ProcessorChipset Graphics Intel UMA Integrated/HD ATi Discrete PCI Express x Graphics 150-199 100-149 Intel UMA Integrated/GMA 4500M GL40 Memory Switchable Discrete Graphics Hard drives OpticalDrives Microphone DisketteDrive Camera External Media cardPorts Keyboard PowerOperating Preinstalled System Serviceabilit End-user Replaceable parts Memory module Optical drive Mini-card device Enww Identifying the hardware External component identification Top components TouchPadComponent Description Lights Button and speakers Control Panel System and Security Power Options Fn key Keys Display Right-side components Left-side components Bottom components Wireless antennas Additional hardware components Enww Serial number location Illustrated parts catalog Computer major components 35.6 cm 14-in, WXGA, BrightView display assembly Keyboards Power button board includes cableSpeaker assembly includes cable Description Spare part number Wlan module Atheros AR9285 802.11 a/b/g/n 2x2 WiFi adapter Memory modulesModem module 593533-001 Enww Battery Item Description Spare part number 592144-001 Display assembly components Display back cover Webcam moduleDisplay rubber display kit not illustrated Item Description Spare part number Plastics kit 600190-001 Plastics Kit Mass storage devices Mass storage devices Rubber kit Power cord, AC, 3 wire, black, 1.83-mMiscellaneous parts Description Spare part number AC adapters Spare part Description Number Sequential part number listing Presario, matte black HP, biscotti Module, silver HP, charcoal for models 1.1 and 1.2 only Enww Tools required Removal and replacement proceduresPreliminary replacement requirements Service considerations Drive handling Cables and connectors Event 10% 40% 55% Grounding guidelinesElectrostatic discharge damage Typical electrostatic voltage levels Packaging and transporting guidelines Material Use Voltage protection level Equipment guidelines Serial number Component replacement procedures Description Spare part number Rubber Feet Kit 600184-001 Computer feet Battery Hard drive Enww Enww Optical drive Enww Wlan module Enww Memory module Enww Keyboard Enww Top cover Enww Enww Description Spare part number Speaker assembly 600189-001 Speaker assembly Power button board TouchPad button board Modem module Enww USB board Power connector cable Display assembly Enww Enww Enww Enww Enww Enww System board Power connector cable see Power connector cable on Reverse the preceding procedure to install the system board Optical drive Sata cable and connector Enww Description Spare part number RTC battery 602745-001 RTC battery Enww Subsystem memory includes thermal material Fan/heat sink assembly Enww Enww Processor Enww Enww Enww Using Setup Utility Setup UtilityComputer Setup in Windows Starting Setup Utility Displaying system information Navigating and selecting in Setup Utility Restoring default settings in Setup Utility Security menu Setup Utility menusExiting Setup Utility Main menu System Configuration menu Diagnostics menuPrimary Hard Disk Self Test Navigating and selecting in Computer Setup Computer Setup in LinuxStarting Computer Setup Using Computer Setup Restoring factory settings in Computer Setup File menu Computer Setup menus Security menu System Configuration menu Enww Enww Computer specifications Specifications 35.6-cm14.0-in display specifications Hard drive specifications Cache buffer Data transfer rate Random access timeTransfer mode Applicable disc BD-ROM, BD-ROM-DL, BD-R, BD-R-DL, BD-RE, BD-RE-DL, DVD-ROM Select Start Computer System resource specifications Windows Backup and recovery Creating recovery discs Backing up your information Using Windows Backup and Restore Using system restore points Performing a recovery Select Start All Programs Recovery Manager Recovery Manager Recovering from the recovery discs Linux backup and recovery Enww Audio-in microphone Connector pin assignmentsPin Signal Audio-out headphone External monitor RJ-45 network RJ-11 modem Hdmi Universal Serial Bus Enww Requirements for all countries or regions Power cord set requirements Country/region Accredited agency Applicable note number Requirements for specific countries or regions Battery RecyclingDisplay Enww Display Enww Enww Enww Index Symbols/Numerics Inverter USB Enww