HP CQ41-205TX, CQ41-204TX, CQ41-207TX, CQ41-224TX, CQ41-223TX, CQ41-213TU, CQ41-212TX manual RTC battery

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Removal and replacement procedures

RTC battery

Description

Spare part number

 

 

RTC battery (includes cable and double-sided tape)

486835-001

 

 

Before removing the RTC battery:

1.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.

2.Disconnect all external devices connected to the computer.

3.Disconnect the power from the computer by first disconnecting the power cord from the AC outlet and then disconnecting the AC adapter from the computer.

4.Remove the battery (see “Battery” on page 4-7).

Remove the RTC battery:

1.Remove the two Phillips PM2.5×5.0 captive screws 1 that secure the Mini Card compartment cover to the computer.

2.Lift the right side of the Mini Card compartment cover 2, swing it to the left, and remove the cover 3. The Mini Card compartment cover is included in the Plastics Kit, spare part number 486862-001.

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Maintenance and Service Guide

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Contents Maintenance and Service Guide Compaq Presario CQ41 Notebook PCCopyright 2009 Hewlett-Packard Development Company, L.P Safety warning notice Contents Setup Utility 10Recycling Product description ChipsetGraphics PanelHard drive Optical driveMicrophone AudioPower requirements External mediaCards PortsServiceability Operating systemExternal component identification Top componentsTouchPad Component DescriptionLights Security Power Options Buttons and speakersKeys Component Description Esc keyFn key Display Front components Rear component Right-side components Left-side components Bottom components Wireless antennas Additional hardware components Service tag Illustrated parts catalogComputer major components Item Description Keyboard coverTop cover TouchPad bracketDescription Spare Part Number Power connector and cable Description Spare Part Number Base enclosure Audio boardDisplay assembly Plastics Kit Item Description Spare part number Plastics Kit 486862-001Mass storage devices Item Description Spare part numberPower cords Miscellaneous partsDescription Spare part number AC adapters Screw KitSequential part number listing Spare part Number DescriptionSpare part Number Description Spare part Number Description Zambia, and Zimbabwe Removal and replacement procedures Preliminary replacement requirementsService considerations Tools requiredGrounding guidelines Drive handlingPackaging and transporting guidelines Equipment guidelines Component replacement procedures Service tagComputer feet Battery Hard drive Removal and replacement procedures Memory module Removal and replacement procedures RTC battery Removal and replacement procedures Wlan module 518436-002 Removal and replacement procedures Removal and replacement procedures Removal and replacement procedures Removal and replacement procedures Optical drive Keyboard Removal and replacement procedures Keyboard cover Optical drive see Optical drive on Keyboard see Keyboard onRemoval and replacement procedures Speaker assembly Removal and replacement procedures Display assembly Removal and replacement procedures Removal and replacement procedures Removal and replacement procedures Removal and replacement procedures Removal and replacement procedures Webcam/microphone module select models only Microphone module Top cover Removal and replacement procedures Reverse this procedure to install the top cover Bluetooth module and cable select models only Removal and replacement procedures Modem module Removal and replacement procedures Audio board Removal and replacement procedures USB board Removal and replacement procedures Power connector and cable Removal and replacement procedures System board Removal and replacement procedures Removal and replacement procedures Removal and replacement procedures Heat sink/fan assembly or heat sink Removal and replacement procedures Removal and replacement procedures Reverse this procedure to install the fan/heat sink assembly Fan for models with UMA graphics subsystems Processor Removal and replacement procedures Setup Utility Starting Setup UtilityUsing Setup Utility Changing the language of Setup UtilityNavigating and selecting in Setup Utility Restoring default settings in Setup UtilityDisplaying system information Setup Utility menus Exiting Setup UtilityMain menu Security menuSystem Configuration menu Diagnostics menuSpecifications Computer specificationsDisplay specifications Hard drive specifications Access time Applicable disc Read WriteInterface Max data transfer rateDVD±RW SuperMulti DL Drive with LightScribe specifications Max media capacity read Max media capacity write TransportSystem DMA specifications Hardware DMA System functionHardware IRQ System function Atheros AR5009 802.11a/g/n WiFi Adapter Address hex System function shipping configuration CD0 CDB 010 01F Address hex System function shipping configuration Backup and recovery OverviewPage Backing up your information Using Windows Backup and Restore Using system restore pointsPerforming a recovery To Create a system restore pointRecovering from the recovery discs Connector pin assignments Pin SignalAudio-in microphone Audio-out headphoneExternal monitor Hdmi RJ-11 modem select models only RJ-45 network Universal Serial Bus Power cord set requirements Requirements for all countries and regionsRequirements for specific countries and regions Country/region Accredited agency Applicable note numberBattery RecyclingDisplay Recycling Maintenance and Service Guide 10-3 10-4 Maintenance and Service Guide 10-5 10-6 Index F11 key 7-6 fan Esc Index-4 Index-5
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