Acer 4120 manual Taking care of your computer, Taking care of your AC adapter

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To turn the power off, do any of the following:

Use the Windows shutdown command Click on Start then click on Shut Down.

Use the power button

You can also put the computer in sleep mode by pressing the sleep hotkey <Fn> + <F4>.

Note: If you cannot power off the computer normally, press and hold the power button for more than four seconds to shut down the computer. If you turn off the computer and want to turn it on again, wait at least two seconds before powering up.

Taking care of your computer

Your computer will serve you well if you take care of it.

Do not expose the computer to direct sunlight. Do not place it near sources of heat, such as a radiator.

Do not expose the computer to temperatures below 0 ºC (32 ºF) or above 50 ºC (122 ºF).

Do not subject the computer to magnetic fields.

Do not expose the computer to rain or moisture.

Do not spill water or any liquid on the computer.

Do not subject the computer to heavy shock or vibration.

Do not expose the computer to dust or dirt.

Never place objects on top of the computer.

Do not slam the computer display when you close it.

Never place the computer on uneven surfaces.

Taking care of your AC adapter

Here are some ways to take care of your AC adapter:

Do not connect the adapter to any other device.

Do not step on the power cord or place heavy objects on top of it. Carefully route the power cord and any cables away from foot traffic.

When unplugging the power cord, do not pull on the cord itself but pull on the plug.

The total ampere ratings of the equipment plugged in should not exceed the ampere rating of the cord if you are using an extension cord. Also, the total current rating of all equipment plugged into a single wall outlet should not exceed the fuse rating.

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Contents Extensa 4420/4120 Series Users GuidePage Turning the product off before cleaning Information for your safety and comfortSafety instructions Using electrical power Guidelines for safe battery usage Product servicingReplacing the battery pack Potentially explosive environmentsOperating environment Additional safety informationTelephone line safety Medical devicesVehicles Potentially explosive environmentsEmergency calls Disposal instructions Mercury advisoryTips and information for comfortable use Finding your comfort zone Taking care of your visionDeveloping good work habits Your guides Basic care and tips for using your computerFirst things first Turning your computer on and offTaking care of your computer Taking care of your AC adapterPlease refer to Frequently asked questions on Taking care of your battery packCleaning and servicing Xvi Contents Using a computer security lock Audio Acer eRecovery Management Page Acer Empowering Technology Empowering Technology passwordAcer eNet Management Empowering Technology To create a new power plan Acer ePower ManagementUsing power plans To switch between power plansTo delete a power plan Battery statusAcer ePresentation Management Acer eDataSecurity Management for selected models Acer eLock Management Empowering Technology Acer eRecovery Management Empowering Technology Acer eSettings Management Windows Mobility Center for Windows Vista only Empowering Technology Description Your Acer notebook tourFront view Easy-launch buttons on page 26 for more details Launch buttons on page 26 for more detailsClosed front view Icon DescriptionLeft view # Icon DescriptionRight view Rear viewBase view Specifications English English English Indicators Icon Function DescriptionIcon Easy-launch button Default application Easy-launch buttonsIcon Productivity key Default application Touchpad Touchpad basicsFunction Left Right Main touchpad Center button Button Lock keys and embedded numeric keypad Using the keyboardDesired access Num Lock on Num Lock off Lock key DescriptionWindows keys KeyDescriptionHotkeys Fn + → Hotkey Icon Function Description Fn + ↑Fn + ↓ Fn + ←US dollar sign Euro symbolSpecial keys Ejecting the optical CD or DVD drive tray Using a computer security lock Adjusting the volume AudioUsing the system utilities Acer GridVista dual-display compatibleLaunch Manager Select Tasks & Scans Norton Internet SecurityHow do I check for viruses? NTI Shadow Image is not full-screen Frequently asked questionsNothing appears on the screen Infrared port does not work No audio is heard from the computerKeyboard does not respond Printer does not workWant to set up my location to use the internal modem Before you call Requesting serviceInternational Travelers Warranty ITW Maximizing the batterys life Battery packBattery pack characteristics Installing and removing the battery pack Optimising battery life Charging the batteryChecking the battery level Battery-low warning Situation Recommended ActionMoving around Disconnecting from the desktopTaking your notebook PC with you Preparing the computerWhat to take with you Taking the computer homeWhat to bring to meetings Special considerations Setting up a home officeTraveling with the computer Traveling internationally with the computer What to bring with youSecuring your computer Using a computer security lockUsing passwords Entering passwords Setting passwordsFax/data modem Expanding through optionsConnectivity options Built-in network feature Fast Infrared FIRUniversal Serial Bus USB Ieee 1394 portEjecting a PC Card PC Card slotInserting a PC Card Installing memory Bios utilityBoot sequence Using software Enable disk-to-disk recoveryPassword Playing DVD moviesAcer eRecovery Management Create backupBurn backup disc Restore and recoveryError messages Corrective action Troubleshooting tipsError messages English Operation conditions Regulations and safety noticesFCC notice Declaration of Conformity for EU countries Modem noticesRemarque à lintention des utilisateurs canadiens TBR List of applicable countriesEnglish Macrovision copyright protection notice Laser compliance statementLCD pixel statement European Union EU Article 3.1a Health and SafetyRadio device regulatory notice General Article 3.1b EMCEnglish FCC RF safety requirement English LCD panel ergonomic specifications USA Acer Computer Shanghai Limited EN60950-12001 EN600652002 applied to models with TV functionIndex English