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

Models: CQ41-211TU CQ41-210TU CQ41-205TX CQ41-208TU CQ41-213TU CQ41-211TX CQ41-224TX CQ41-206TX CQ41-212TX CQ41-209TX CQ41-209TU CQ41-208TX CQ41-225TX CQ41-223TX CQ41-207TX CQ41-204TX

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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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HP CQ41-211TX, CQ41-205TX, CQ41-204TX, CQ41-206TX, CQ41-207TX, CQ41-224TX, CQ41-223TX, CQ41-213TU manual Testing an AC adapter

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 hardware Components Top componentsTouchPad Lights Components Features Panel System and Security Power Options Buttons and speakers Keys Fn key Display Front components Rear component Right-side components Left-side components Bottom components Wireless antennas Additional hardware components Labels Wireless, local area network, and modem Using wireless devices Identifying wireless and network status icons Using the wireless controlsUsing the wireless button Using HP Wireless Assistant Using operating system controls Using a Wlan Setting up a Wlan Use a wireless transmitter with built-in security Use wireless encryptionProtecting your Wlan Work behind a firewall Connecting to a Wlan Roaming to another network Using Bluetooth wireless devices select models only Bluetooth and Internet Connection Sharing ICS Troubleshooting wireless connection problems Cannot connect to a Wlan Cannot 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 weak Using the modem select models only Connecting a modem cable Connecting a country-specific modem cable adapter Selecting a location settingViewing the current location selection Adding new locations when traveling Select Start Devices and Printers Solving travel connection problems Check the telephone line typeCheck for pulse or tone dialing Set the modem to ignore dial tones Connecting to a local area network Clear the check box for Wait for dial tone before dialing Using the TouchPad Pointing devices and keyboard Setting TouchPad preferences Connecting an external mouse Using keyboard hotkeys Function Hotkey Displaying system information Opening Help and Support Switching the screen image Opening the Print Options windowOpening a Web browser Initiating Sleep Initiating QuickLockDecreasing screen brightness Increasing screen brightness Playing, 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 DVD Using keypads Num lk key Using the embedded numeric keypad Using an optional external numeric keypadSwitching key functions on the embedded numeric keypad Enabling and disabling the embedded numeric keypad Cleaning the TouchPad and keyboard Multimedia features Multimedia Identifying your multimedia components Environmental Notices Adjusting the volume Click Customize notification icons Using the media activity hotkeys Using DVD Play software Using other preinstalled multimedia softwareInstalling multimedia software from a disc Multimedia software Connecting external audio devices Select Start All Programs Accessories Sound RecorderAudio Checking your audio functions Connecting an external monitor or projector Video Connecting an Hdmi device Configuring audio for Hdmi Webcam select models only Webcam tips Adjusting 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 display Remove any discs from the optical drive Obtaining the latest HP device drivers Obtaining the latest Windows device drivers Power management Setting power optionsUsing power-saving states Initiating and exiting Sleep Using the battery meter Initiating and exiting Hibernation Using power plans Setting password protection on wakeupViewing the current power plan Selecting a different power plan Using 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 battery Charging 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 battery Shutting down the computer Click Shut down Drives Handling drives Identifying the installed optical drive Optical driveSelect Start Computer Using optical discs DVD±RW/R Selecting the right disc CD-R discsCD-RW discs DVD±R discs Playing 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 card Removing a digital card Memory modules Page Page Page Security Protecting the computer Using passwords Setting passwords in Windows Setting passwords in Setup Utility Administrator password Power-on password Entering an administrator password Using antivirus software Using firewall software Installing critical security updates Installing an optional security cable Setup Utility Bios Starting Setup Utility Using 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 menu System Configuration menu Diagnostics menu Software updates Updating the Bios Determining the Bios version Downloading 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 Restore Using system restore points When to create restore pointsCreate a system restore point Restore to a previous date and time Performing a recovery Recovering from the recovery discsSelect Start All Programs Recovery Manager Recovery Manager Click System Recovery in the Recovery Manager window Symbols/Numerics Index Jacks Ssid Page Wlan label 14 Wlan module 11 writable media Index