HP CQ41-211TX, CQ41-205TX, CQ41-204TX, CQ41-206TX, CQ41-207TX, CQ41-224TX manual Testing an AC adapter

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Testing an AC adapter

Test the AC adapter if the computer exhibits any of the following symptoms when it is connected to AC power:

●The computer will not turn on.

●The display does not turn on.

●The power light is off.

To test the AC adapter:

1.Remove the battery from the computer.

a.Turn the computer upside down on a flat surface.

b.Slide the battery release latch (1) to release the battery.

c.Pivot the battery (2) upward and remove the battery from the computer (3).

2.Connect the AC adapter to the computer, and then plug it into an AC outlet.

3.Turn on the computer.

●If the power light turns on, the AC adapter is functioning properly.

●If the power light remains off, the AC adapter is not functioning and should be replaced.

Contact technical support for information on obtaining a replacement AC power adapter. Select Start > Help and Support > Get assistance.

62 Chapter 5 Power management

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Contents Page Product notice Safety warning notice Iv Safety warning notice Table of contents Pointing devices and keyboard Multimedia Drives External devices and external media cards 117 Features Identifying hardwareComponents Top componentsTouchPad Lights ComponentsFeatures Panel System and Security Power Options Buttons and speakersKeys Fn keyDisplay Front components Rear componentRight-side components Left-side components Bottom components Wireless antennas Additional hardware components Labels Wireless, local area network, and modem Using wireless devicesIdentifying wireless and network status icons Using the wireless controlsUsing the wireless button Using HP Wireless Assistant Using operating system controlsUsing a Wlan Setting up a WlanUse a wireless transmitter with built-in security Use wireless encryptionProtecting your Wlan Work behind a firewallConnecting to a Wlan Roaming to another networkUsing Bluetooth wireless devices select models only Bluetooth and Internet Connection Sharing ICSTroubleshooting wireless connection problems Cannot connect to a WlanCannot connect to a preferred network Network icon is not displayedCurrent network security codes are unavailable Cannot connect to the wireless router Wlan connection is very weakUsing the modem select models only Connecting a modem cableConnecting a country-specific modem cable adapter Selecting a location settingViewing the current location selection Adding new locations when traveling Select Start Devices and PrintersSolving travel connection problems Check the telephone line typeCheck for pulse or tone dialing Set the modem to ignore dial tonesConnecting to a local area network Clear the check box for Wait for dial tone before dialingUsing the TouchPad Pointing devices and keyboardSetting TouchPad preferences Connecting an external mouseUsing keyboard hotkeys Function HotkeyDisplaying system information Opening Help and SupportSwitching the screen image Opening the Print Options windowOpening a Web browser Initiating Sleep Initiating QuickLockDecreasing screen brightness Increasing screen brightnessPlaying, pausing or resuming an audio CD or a DVD Stopping an audio CD or a DVDPlaying previous track or section of an audio CD or a DVD Playing next track or section of an audio CD or a DVDUsing keypads Num lk keyUsing the embedded numeric keypad Using an optional external numeric keypadSwitching key functions on the embedded numeric keypad Enabling and disabling the embedded numeric keypadCleaning the TouchPad and keyboard Multimedia features MultimediaIdentifying your multimedia components Environmental NoticesAdjusting the volume Click Customize notification iconsUsing the media activity hotkeys Using DVD Play software Using other preinstalled multimedia softwareInstalling multimedia software from a disc Multimedia softwareConnecting external audio devices Select Start All Programs Accessories Sound RecorderAudio Checking your audio functionsConnecting an external monitor or projector VideoConnecting an Hdmi device Configuring audio for Hdmi Webcam select models only Webcam tipsAdjusting webcam properties Troubleshooting Computer does not detect the optical drive Select Advanced Settings Monitor tab Disc does not playDisc does not play automatically DVD movie stops, skips, or plays erratically DVD movie is not visible on an external displayRemove any discs from the optical drive Obtaining the latest HP device drivers Obtaining the latest Windows device driversPower management Setting power optionsUsing power-saving states Initiating and exiting SleepUsing the battery meter Initiating and exiting HibernationUsing power plans Setting password protection on wakeupViewing the current power plan Selecting a different power planUsing external AC power Connecting the AC adapter Testing an AC adapter Using battery power Finding battery information in Help and SupportUsing Battery Check Displaying the remaining battery charge Inserting or removing the batteryCharging a battery Maximizing battery discharge time Managing low battery levelsIdentifying low battery levels Resolving a low battery level Calibrating a battery Fully charge the batteryDisable Hibernation and Sleep Discharge the battery Fully recharge the batteryReenable Hibernation and Sleep Conserving battery power Storing a batteryDisposing of a used battery Replacing the batteryShutting down the computer Click Shut downDrives Handling drivesIdentifying the installed optical drive Optical driveSelect Start Computer Using optical discs DVD±RW/RSelecting the right disc CD-R discsCD-RW discs DVD±R discsPlaying a CD, DVD, or BD LightScribe DVD+R discsBlu-ray Disc Configuring AutoPlay Changing DVD region settingsSelect Start Default Programs Change AutoPlay settings Select Start All Programs CyberLink DVD Suite Power2Go Observing the copyright warningCopying a CD or DVD Creating burning a CD or DVD Removing an optical disc CD, DVD, or BD Removing the optical drive Using external drives Using Disk Defragmenter Using Disk CleanupImproving hard drive performance Replacing the hard drive Page Page Tighten the hard drive cover screws Replacing the hard drive Using a USB device Connecting a USB deviceExternal devices and external media cards Removing a USB device Using Digital Media Slot cards Inserting a digital cardRemoving a digital card Memory modules Page Page Page Security Protecting the computerUsing passwords Setting passwords in WindowsSetting passwords in Setup Utility Administrator passwordPower-on password Entering an administrator passwordUsing antivirus software Using firewall softwareInstalling critical security updates Installing an optional security cableSetup Utility Bios Starting Setup UtilityUsing Setup Utility Changing the language of Setup UtilityNavigating and selecting in Setup Utility Restoring default settings in Setup Utility Setup Utility menus Exiting Setup UtilityMain menu Security menuSystem Configuration menu Diagnostics menuSoftware updates Updating the Bios Determining the Bios versionDownloading a Bios update Updating programs and drivers Backup and recovery Creating recovery discs Backing up your information Using Windows Backup and Restore Select Start All Programs Maintenance Backup and RestoreUsing system restore points When to create restore pointsCreate a system restore point Restore to a previous date and timePerforming a recovery Recovering from the recovery discsSelect Start All Programs Recovery Manager Recovery Manager Click System Recovery in the Recovery Manager windowSymbols/Numerics IndexJacks Ssid Page Wlan label 14 Wlan module 11 writable media Index

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