Acer 1620 Series manual My external microphone does not work, Keyboard does not respond

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English

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Troubleshooting

control icon on the taskbar. If it is crossed-out, click on the icon and deselect the Mute option.

The volume level may be too low. In Windows, click on the volume control icon on the taskbar, and then use the slider control to increase the volume level.

If headphones are connected to the headphone jack on the computer, your computer's built-in speakers will be turned off.

My external microphone does not work.

Check the following:

Make sure that the external microphone is properly plugged into the microphone-in jack on the computer.

Make sure that the volume is not muted or set too low.

I can't eject the optical drive tray with my computer turned off.

The computer needs to be turned on for the optical drive eject button to function. If you need to eject the optical drive tray when the computer is turned off, push a straightened paper clip into the optical drive emergency eject hole. See “Emergency ejection of the optical drive tray” on page 23 for more information.

The keyboard does not respond.

Try attaching an external USB keyboard to one of your computer's USB ports. If it works, the internal keyboard might have become disconnected. Contact your dealer or an authorized service center.

The optical drive cannot read a disc.

Check the following:

Make sure that the disc is supported by the drive. If your computer has a CD-ROM drive, it can read CDs but cannot read DVDs. If your computer has a DVD drive, it can read both CDs and DVDs.

When placing a disc in the drive tray, make sure that it is secure on the spindle of the drive tray.

Make sure that the disc is free from scratches or smudges. If the disc is dirty, clean it using a disc cleaning kit.

If the disc is OK, the drive head might be dirty. Clean it using a drive head cleaning kit.

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Contents Acer Aspire 1620 Series Page Basic care and tips for using your computer First things firstYour guides Turning your computer on and offTaking care of your computer Taking care of your AC adapterTaking care of your battery pack Cleaning and servicingEnglish Contents Moving with your computer SoftwareTroubleshooting English Your computer Page Tour of your computer Front viewDescription Getting familiar with your computer Left view Right view Rear view Bottom view Features PerformanceDisplay MultimediaConnectivity Human-centric designExpansion Indicators Icon Function DescriptionIndicators on cover Icon DescriptionKeyboard Special keysLock keys Lock Key DescriptionDesired Access Num Lock On Num Lock Off Embedded keypadWindows keys Key DescriptionHot keys Hot Key Icon Function DescriptionEnglish Euro symbol Touchpad Touchpad basicsFunction Left Button Right Way Tap Scroll Key Launch Key Default Application Launch keysStorage Ejecting the optical drive tray Emergency ejection of the optical drive trayConnectivity options Ethernet and LANFax/Data modem Audio Setting a password Securing your computerSecurity slot English Battery power Page Battery pack Battery pack characteristicsMaximizing the batterys life Conditioning a new battery packInstalling and removing the battery pack Charging the battery Checking the battery levelOptimizing battery life Battery-low warning Situation Recommended ActionPower management English Options Page External display devices External input devicesExternal keyboard External keypadUSB devices Ieee 1394 Port Printer Audio devicesExpansion devices PC CardBattery pack Miscellaneous optionsAC adapter Key component upgrades Memory upgradeInstalling memory Hard disk upgrade Computer Page Disconnecting from the desktop Moving around Preparing the computerWhat to bring to short meetings What to bring to long meetingsTaking the computer home What to bring with youSpecial considerations Setting up a home office Traveling with the computerWhat to take with you Traveling internationally with your computer English Software Page System software Launch ManagerBios Setup Utility Troubleshooting Page Frequently asked questions Nothing appears on the screenImage is not full-screen There is no audio coming from my computerMy external microphone does not work Keyboard does not respondOptical drive cannot read a disc Want to set up my location to use the internal modem Printer does not workRequesting service International Traveler’s Warranty ITWBefore you call Specifications Page Microprocessor MemoryData storage Display and videoWeight and dimensions AudioKeyboard and pointing device PortsPower EnvironmentOperating system OptionsEnglish Regulation & safety notices This appendix lists the general notices for your computer Energy Star Guidelines Compliance FCC noticeModem notices Operation conditionsRemarque à l’intention des utilisateurs canadiens Declaration of Conformity for EU countriesTBR List of Applicable CountriesEnglish Important safety instructions Laser compliance statement LCD pixel statement Macrovision copyright protection noticeRadio Device Regulatory Notice General European Union EUFCC RF safety requirement Exposure of humans to RF fields RSS-102Federal Communications Commission Declaration of Conformity Declaration of Conformity for CE marking English Index Troubleshooting English Index