2The computer has no sound output at all.

1)Check to see if the speakers are properly connected to the computer.

2)Check to make sure that the sound channels are not muted. Double click the speaker icon at the bottom right of the toolbar and confirm if the mute option is selected for all sound channels. If yes, please uncheck them.

3)Check to see if the volume of all sound channels are set at a minimum level. If yes, please adjust the volume to an appropriate level.

Please re-install the sound card driver.

3Recording with the microphone

Please following the below instructions to make a recording with the microphone:

Step 1

Click “Options” at the upper left of the Main

Volume Control window, and select “Properties”.

Step 2

From the Properties menu, select “Recording”. Check the Microphone option and click “OK”.

Lenovo 3000 H Series User Manual 23

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Lenovo 3000 H Series user manual Computer has no sound output at all, Recording with the microphone