Lenovo 3484JMU manual Using the wheel mouse, Adjusting audio, About your computer audio

Using the wheel mouse

The wheel mouse has the following controls:

1

2

Primary mouse button	Use this button to select or start a program or menu item.
Wheel	Use the wheel to control the scrolling action of the mouse. The direction in which you
	rotate the wheel controls the direction of the scrolling action.

3

Secondary mouse button Use this button to display a menu for the active program, icon, or object.

You can switch the function of the primary and secondary mouse buttons and change other default behavior through the mouse properties function in the Windows Control Panel.

Adjusting audio

Sound is an important part of the computer experience. Your computer has a digital audio controller built into the system board. Some models also have a high-performance audio adapter installed in one of the PCI card slots.

About your computer audio

If a factory-installed, high-performance audio adapter is installed in your computer, the system-board audio connectors on the rear of the computer are typically disabled; use the connectors provided on the audio adapter.

Each audio solution provides at least three audio connectors: audio line-in connector, audio line-out connector, and Microphone connector. On some models, a fourth connector is provided for the attachment of unpowered stereo speakers (speakers that do not require an ac power source). The audio adapter provides you with the ability to record and play back sound and music, as well as to enjoy sound with multimedia applications and work with speech-recognition software.

Optionally, you can connect a set of powered stereo speakers to the audio line-out connector to enjoy better sound with multimedia applications.

Setting the volume from the desktop

The desktop volume control is accessible through the volume icon in the taskbar, which is located at the bottom-right corner of the Windows desktop. Click the volume icon and move the slider up or down to control the volume, or click the Mute icon to turn the audio off. If the volume icon is not in the taskbar, see “Adding the volume icon to the taskbar” on page 19.

Adding the volume icon to the taskbar

To add the volume icon to the taskbar on the Windows 7 operating system, do the following:

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