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Lenovo 3000 Series Laptop User Manual

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Lenovo Notebook Computer User Guide

UseODDdiskRejectbuttontoejecttheODDdiskorODDtray.

See“UsingOpticalMediaDrive”fordetails.

1.1.30USBportsx2 

UsetheseportstoconnectuptotwoUSBdevices,suchasamouse,

a full‐size external keyboard, or a printer. The USB ports comply

withUSB2.0standards,whichenabledatatransferspeeds40times

fasterthantheUSB1.1standards.(TheportsalsosupportUSB1.1.)



Hint: The USB device supports PnP (Plug and Play)

technology. That means you can install and remove the

USBdevicewhenyourcomputerison.



Caution:DonotinstallorremovetheUSBdevicewhilethe

computerisstartingorshuttingdown.

1.1.31Microphone‐injack 

Enablesamicrophoneconnectionforaudioinput.

1.1.32Headphone‐outjack 

Enablesaheadphoneorexternalconnectionforaudiooutput.When

youconnecttheheadphoneorotherdevices,internalspeakersare

automaticallydisabled.



z Frontviewwiththedisplayclosed



33

SystemandPowerStatusIndicators

14

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