HP CQ40-416TU, CQ40-417TU, CQ40-408AU, CQ40-404AX, CQ40-421AX, CQ40-409TU manual Cables and connectors

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Cables and connectors

CAUTION: When servicing the computer, be sure that cables are placed in their proper locations during the reassembly process. Improper cable placement can damage the computer.

Cables must be handled with extreme care to avoid damage. Apply only the tension required to unseat or seat the cables during removal and insertion. Handle cables by the connector whenever possible. In all cases, avoid bending, twisting, or tearing cables. Be sure that cables are routed in such a way that they cannot be caught or snagged by parts being removed or replaced. Handle flex cables with extreme care; these cables tear easily.

Drive handling

CAUTION: Drives are fragile components that must be handled with care. To prevent damage to the computer, damage to a drive, or loss of information, observe these precautions:

Before removing or inserting a hard drive, shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.

Before handling a drive, be sure that you are discharged of static electricity. While handling a drive, avoid touching the connector.

Before removing a diskette drive or optical drive, be sure that a diskette or disc is not in the drive and be sure that the optical drive tray is closed.

Handle drives on surfaces covered with at least one inch of shock-proof foam.

Avoid dropping drives from any height onto any surface.

After removing a hard drive, an optical drive, or a diskette drive, place it in a static-proof bag.

Avoid exposing a hard drive to products that have magnetic fields, such as monitors or speakers.

Avoid exposing a drive to temperature extremes or liquids.

If a drive must be mailed, place the drive in a bubble pack mailer or other suitable form of protective packaging and label the package “FRAGILE.”

28 Chapter 4 Removal and replacement procedures

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Contents Compaq Presario CQ40 Notebook PC First Edition April Document Part Number Safety warning notice Iv Safety warning notice Table of contents Setup Utility Screw listing Recycling Product description Wireless Category DescriptionHard drives Optical drivesPower requirements Operating system PreinstalledServiceability End-user replaceable parts Category Description External media cardExternal component identification Top componentsTouchPad Component DescriptionLights Top componentsExternal component identification Panel System and Maintenance Power Options Buttons and speakersKeys Fn keyDisplay Wireless antennas Front components Left-side components Rear component Right-side componentsBottom components Service tag Illustrated part numbers catalogComputer major components Illustrated part numbers catalogPower button board not illustrated Speaker assemblyKeyboard Top coverDescription Spare part number Base enclosureBluetooth module Bluetooth module cable not illustratedBattery, 6-cell Li-Ion 2.2-Ah, 47-Wh Display assembly components 487283-001Plastics Kit Item Description Spare part number Plastics Kit 486862-001Mass storage devices Item Description Spare part numberInternal display switch module Power cordMiscellaneous parts Description Spare part number PFC AC adapterSequential part number listing Spare part Description NumberSequential part number listing Illustrated part numbers catalog Removal and replacement procedures Preliminary replacement requirementsService considerations Tools requiredCables and connectors Grounding guidelines Typical electrostatic voltage levelsEvent 10% 40% 55% Packaging and transporting guidelines Equipment guidelines Material Use Voltage protection levelComponent replacement procedures Service tagComputer feet Battery Optical drive Hard drive Page Wlan module Page RTC battery Page Memory module Page Keyboard For use Spare part numberPage Keyboard cover Page Power button board Speaker assembly Description Spare part number Speaker assembly 486865-001Page Display assembly Page Page Page Page Page Camera module Description Spare part number Camera module 487287-001Microphone module Top cover Page Page TouchPad button board Page Bluetooth module Description Spare part number Bluetooth module 483113-001Page Modem module select models only Page Audio board Page USB board Page Power connector cable Page System board Modem cable see Modem module select models only onPage Removal and replacement procedures Heat sink Page Processor Page Fan Description Spare part number Fan 486844-001Page Setup Utility Starting the Setup UtilityChanging the language of the Setup Utility Navigating and selecting in the Setup UtilityRestoring default settings in the Setup Utility Displaying system informationExiting the Setup Utility Setup Utility menus Select To do thisSelect Primary Hard Disk Self TestSpecifications Computer specifications14.1-in, Wxga BrightView display specifications Hard drive specifications Access time Transfer modeApplicable disc Read WriteApplicable disc Read Write CD-DA, CD+EG, CD-MIDI, CDTEXT, CD-ROM, CD-ROM XASystem DMA specifications Hardware DMA System functionSystem interrupt specifications Hardware IRQ System functionSystem I/O address specifications Address hex System function shipping configurationSystem I/O address specifications System memory map specifications Size Memory address System functionScrew listing Phillips PM2.0×2.0 broadhead screw Color Quantity Length Thread Head diameter BlackPhillips PM2.0×3.0 screw black Phillips PM2.0×3.0 screw silver Color Quantity Length Thread Head diameter SilverPhillips PM2.0×4.0 screw Page Phillips PM2.0×10.0 captive screw Color Quantity Length Thread Head diameter Black 10.0 mmPhillips PM2.5×3.0 screw Page Page Phillips PM2.5×4.0 screw Phillips PM2.5×5.0 screw Page Page Phillips PM2.5×5.0 captive screw Phillips PM2.5×6.0 screw Page Phillips PM2.5×7.0 captive screw Phillips PM2.5×10.0 screw Phillips PM2.5×18.0 screw Color Quantity Length Thread Head diameter Black 18.0 mmPhillips PM3.0×3.0 screw Backup and recovery Recovering system informationCreating recovery discs Backing up your informationBackup suggestions Create a system restore point Performing a recovery Recovering from the recovery discsConnector pin assignments Pin SignalAudio-in microphone Audio-out headphoneExternal monitor Hdmi RJ-11 modem select models only RJ-45 networkUniversal Serial Bus Power cord set requirements Requirements for all countries or regionsRequirements for specific countries or regions Country/region Accredited agency Applicable note numberBattery RecyclingDisplay Page Page Page Page Page Symbols/Numerics IndexPage Hdmi Page
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