Toshiba PRO L450D manual Volume control, Cooling vents

	The Grand Tour
Microphone jack	A 3.5 mm mini microphone jack enables
	connection of a three-conductor mini jack for
	monaural microphone input, and connection of a
	stereo device for audio input.
Headphone jack	This jack lets you connect a stereo headphone
	(16 ohm minimum). When you connect
	headphones, the internal speaker is
	automatically disabled.
Volume control	Use this dial to adjust the volume of the internal
	stereo speakers and optional external stereo
	headphones (if connected).
	Move the Volume control to the right to increase
	the volume and to the left to decrease the
	volume.

The following figure shows the computer's left side.

    

1.Cooling vents

2.External monitor port

3.LAN jack

*4. HDMI out port

5.Universal Serial Bus (USB 2.0) port

*Depending on the model you purchased.

Figure 2-2 The left side of the computer

Cooling vents	The cooling vents help keep the processor from
	overheating.

Do not block the cooling vents. Keep foreign metal objects, such as screws, staples and paper clips, out of the cooling vents. Foreign metal objects can create a short circuit, which can cause damage and fire, possibly resulting in serious injury.

User’s Manual 2-2