Sony PCG41313L Users Manual

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User Guide

Personal Computer

VPCZ2 Series

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Contents
Before Use..........................................................................	4
Finding More about Your VAIO Computer ....................	4
Ergonomic Considerations ............................................	7
Getting Started..................................................................	10
Locating Controls and Ports........................................	10
About the Indicator Lights ...........................................	16
Connecting a Power Source .......................................	17
Using the Battery Pack................................................	19
Shutting Down Your Computer Safely ........................	24
Using the Power Saving Modes ..................................	25
Keeping Your Computer in Optimum Condition ..........	26
Using Your VAIO Computer..............................................	29
Using the Keyboard.....................................................	30
Using the Touch Pad...................................................	32
Using Special-function Buttons ...................................	34
Using the Quick Web Access Function .......................	35
Using the Built-in Camera ...........................................	37
Using the Optical Disc Drive .......................................	38
Using "Memory Stick"..................................................	43
Using Other Modules / Memory Cards........................	47
Using the Internet........................................................	50
Using the Network (LAN) ............................................	51

Using the Wireless LAN...............................................	52
Using the Wireless WAN .............................................	55
Using the International Roaming Service ....................	59
Using the BLUETOOTH Function................................	59
Using the GPS Function ..............................................	63
Using Fingerprint Authentication .................................	64
Using the TPM.............................................................	67
Using Peripheral Devices..................................................	74
Using the Noise Canceling Headphones.....................	74
Connecting a Docking Station .....................................	79
Connecting External Speakers or Headphones ..........	87
Connecting an External Display ..................................	88
Selecting Display Modes .............................................	91
Using the Multiple Monitors Function ..........................	92
Connecting a USB Device ...........................................	93
Customizing Your VAIO Computer....................................	96
Setting the Password...................................................	96
Using the VAIO Control Center .................................	101
Using the VAIO Power Management.........................	101
Precautions .....................................................................	103
Safety Information .....................................................	103
Care and Maintenance Information ...........................	105

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Handling Your Computer...........................................	106
Handling the LCD Screen .........................................	108
Using the Power Source ...........................................	109
Handling the Built-in Camera ....................................	109
Handling Discs ..........................................................	109
Using the Battery Pack..............................................	110
Handling "Memory Stick"...........................................	110
Handling the Built-in Storage Device ........................	111
Using Fingerprint Authentication ...............................	112
Using the TPM ..........................................................	112
Troubleshooting ..............................................................	114
Computer Operations................................................	115
System Update / Security..........................................	120
Recovery / Recovery Media ......................................	120
Partition .....................................................................	123
Battery Pack..............................................................	123
Built-in Camera .........................................................	125
Networking (LAN/Wireless LAN) ...............................	127
Wireless WAN ...........................................................	130
BLUETOOTH Technology.........................................	131
Optical Discs .............................................................	134
GPS...........................................................................	137
Display ......................................................................	137
Printing ......................................................................	140

Microphone................................................................	141
Speakers ...................................................................	142
Touch Pad .................................................................	143
Keyboard ...................................................................	144
Floppy Disks ..............................................................	144
Audio/Video ...............................................................	145
"Memory Stick" ..........................................................	147
Peripherals ................................................................	148
Docking Station .........................................................	148
Trademarks .....................................................................	150
Notice ..............................................................................	153

Before Use >
Finding More about Your VAIO Computer	n 4 N

Before Use

Congratulations on your purchase of this VAIO® computer and welcome to the on-screen User Guide. Sony has combined leading-edge technology in audio, video, computing, and communications to provide you with a state-of-the-art computing experience.

!

External views illustrated in this manual may look slightly different from those of your computer.

How to find specifications

Some features, options, and supplied items may not be available on your computer.

To find out about the configuration of your computer, visit the Sony online support web site at the following URLs:

For customers in USA http://esupport.sony.com/EN/VAIO/

For customers in Canada http://www.sony.ca/support/ (English) http://www.fr.sony.ca/support (French)

For customers in Spanish-speaking Latin American countries or areas http://esupport.sony.com/ES/VAIO/LA

For customers in Brazil http://esupport.sony.com/PT/VAIO/BR/

Finding More about Your VAIO Computer

This section provides support information about your VAIO computer.

Before Use >
Finding More about Your VAIO Computer	n 5 N

1. Printed Documentation

Quick Start Guide — An overview of components connection, set-up information, etc.

Recovery, Backup and Troubleshooting Guide

Safety Information — Safety guidelines and owner information.

Before activating the wireless functions such as the wireless LAN and BLUETOOTH technology, read the Safety Information carefully.

2. On-screen Documentation

VAIO User Guide — General information of your VAIO computer including support and troubleshooting information. To access VAIO User Guide, click Start , All Programs, and VAIO Manual.

Help and Support — General information and technical assistance for your VAIO computer. To access Help and Support:

1 Click Start and Help and Support.

2 Choose from the following categories to find the answers you need.

Get started with my VAIO Get help with Internet and wireless setup, security setup, personalizing your VAIO computer, creating Recovery Media, and more.

Use my VAIO	Get assistance with your VAIO computer by accessing useful information such as interactive VAIO tutorials,
	how-to articles, the VAIO technology page, specifications, and system and software information. The
	available information varies depending on the model you purchased.
	You can find useful documentation such as general and model specific user guide on your VAIO computer.
Troubleshoot my VAIO	Maintain and troubleshoot your VAIO computer with the VAIO Care, system restore, backup and recovery,
	and contact Sony support.

Before Use >
Finding More about Your VAIO Computer	n 6 N

Program help files — May be included with the preinstalled software programs on your computer. You may be able to access the help files from the help menu on a specific program.

3. Support Web Sites

Sony online support web site

The Sony online support web site provides instant access to information on commonly encountered problems. Type a description of the problem and the Knowledge Database searches for the corresponding solutions online.

For customers in USA http://esupport.sony.com/EN/VAIO/

For customers in Canada http://www.sony.ca/support/ (English) http://www.fr.sony.ca/support (French)

For customers in Spanish-speaking Latin American countries or areas http://esupport.sony.com/ES/VAIO/LA

For customers in Brazil http://esupport.sony.com/PT/VAIO/BR/

Operating system online support web site

Your computer comes preinstalled with a Microsoft Windows operating system. For operating system support, you can visit Microsoft customer support at http://support.microsoft.com/directory/.

4. Customer Information Center

If you do not find the information you are looking for at our site, you may call Sony directly. You can find the contact numbers on the Sony online support web site. In order to receive the fastest and most efficient services, have the following information readily available:

1 Your VAIO computer model

Before Use >
Ergonomic Considerations	n 7 N

You can find it at the lower right corner of the display on the computer.

2Your computer's serial number

You can find it on the bottom, the back panel, or inside the battery compartment of your VAIO computer. The serial number is the last 7 digits of the number below the barcode.

3The operating system on your computer

4The hardware component or the software program that is causing the problem

5A brief description of the problem

5. In Store Service & Support (available in USA only)

Make an appointment with a Sony certified technician at a U.S. Sony Style store and get personalized service and support for your VAIO computer. Sony Style Backstage Technicians can assist with the setup of your new VAIO computer, system optimization, data rescue, and any repair service you might need.

Visit the web site at www.sonystyle.com/backstage to find the nearest location.

Ergonomic Considerations

You will be using your computer as a portable device in a variety of environments. Whenever possible, you should attempt to take account of the following ergonomic considerations for both stationary and portable environments:

Before Use >
Ergonomic Considerations	n 8 N

Position of your computer – Place the computer directly in front of you. Keep your forearms horizontal, with your wrists in a neutral, comfortable position while using the keyboard or the pointing device. Let your upper arms hang naturally at your sides. Take frequent breaks while using your computer. Excessive use of the computer may strain eyes, muscles, or tendons.

Furniture and posture – Sit in a chair with good back support. Adjust the level of the chair so your feet are flat on the floor. A footrest may make you more comfortable. Sit in a relaxed, upright posture and avoid slouching forward or leaning far backwards.

Viewing angle of the computer display – Use the display tilting feature to find the best position. You can reduce eye strain and muscle fatigue by adjusting the tilt of the display to the proper position. Adjust the brightness level of the display as well.

Lighting – Choose a location where windows and lights do not cause glare and reflection on the display. Use indirect lighting to avoid bright spots on the display. Proper lighting adds to your comfort and work efficiency.

Before Use >
Ergonomic Considerations	n 9 N

Positioning an external display – When using an external display, set the display at a comfortable viewing distance. Make sure the display screen is at or slightly below eye level when you are sitting in front of the monitor.

Getting Started >
Locating Controls and Ports	n 10 N

Getting Started

This section describes how to get started using your VAIO computer.

!

Before starting your computer for the first time, do not connect any other hardware that did not originally come with your computer. Upon completion, connect one device (for example, a printer, an external hard disk drive, a scanner, and so on) at a time, following the manufacturer's instructions.

Locating Controls and Ports (page 10)

About the Indicator Lights (page 16)

Connecting a Power Source (page 17)

Using the Battery Pack (page 19)

Shutting Down Your Computer Safely (page 24)

Using the Power Saving Modes (page 25)

Keeping Your Computer in Optimum Condition (page 26)

Locating Controls and Ports

Take a moment to identify the controls and ports shown on the following pages.

!

The appearance of your computer may be different from those illustrated in this manual due to variations in specifications.

Getting Started >
Locating Controls and Ports	n 11 N

Front

A Built-in camera (page 37)

B Built-in camera indicator (page 16)

C LCD screen (page 108)

D Power button/Power indicator (page 16)

E Keyboard (page 30)

F Touch pad (page 32)

G Charge indicator (page 16)

H Disc drive indicator (page 16)

I WIRELESS indicator (page 16)

Getting Started >
Locating Controls and Ports	n 12 N
	A WIRELESS switch (page 52), (page 55), (page 59), (page 63)
	B ASSIST button (page 34)
	C WEB button (page 34)
	D VAIO button (page 34)
	E Ambient light sensor (page 31), (page 139)
	Measures ambient light intensity for automatically adjusting the
	LCD brightness to an optimum level.
	F Built-in microphones (monaural)
	G Num lock indicator (page 16)
	H Caps lock indicator (page 16)
	I Scroll lock indicator (page 16)
	J Fingerprint sensor (page 64)
	K "Memory Stick Duo" slot* (page 43)
	L Media Access indicator (page 16)
	M SD memory card slot (page 47)
	* Your computer supports only Duo-size "Memory Stick".

Getting Started >
Locating Controls and Ports	n 13 N

Back

A SIM card slot (page 55), (page 59)

B Air vents

!

It is recommended that you do not use your computer with the LCD screen lid fully open for an extended period of time. If you do so, the temperature of the bottom of the unit may rise.

Getting Started >
Locating Controls and Ports	n 14 N

Right

A Headphones jack (page 87)

B LAN port (page 51)

Pull the port cover down before using the LAN port.

When the port cover disengages:

The port cover may disengage if you exert pressure on it when opening it or disconnecting a LAN cable. To attach the port cover, align the cover with the edge (1) of the port and push the cover down until it clicks into place.

C HDMI output port (page 89)

D USB port*1 (page 93)

E Docking station/USB port*2 (page 79), (page 93)

F DC IN port (page 17)

*1	Compliant with the USB 2.0 standard.
*2	Compliant with the USB 2.0/3.0 standards. USB ports that are compliant
	with the USB 3.0 standard are identifiable by their blue color.

Getting Started >
Locating Controls and Ports	n 15 N

Left

A Monitor port (page 88)

B Air vent

C Security slot

Getting Started >
About the Indicator Lights	n 16 N

Bottom (with the battery pack)

A Built-in speakers (stereo)

B Battery off button (page 21), (page 125)

C Extended battery pack connector cover*

D Air vents

* For detailed instructions on how to attach an extended battery pack, see the manual that came with your extended battery pack.

While the extended battery pack is attached to your computer, be sure to keep the removed connector cover for future use.

Bottom (without the battery pack)

A Battery connector (page 19)

About the Indicator Lights

Your computer is equipped with the following indicator lights:

Indicator	Functions
Power 1	Illuminates in green while the computer is in Normal mode, blinks slowly in orange while the computer is in Sleep
	mode, and turns off when the computer is turned off or enters Hibernate mode.

Getting Started >
Connecting a Power Source		n 17 N
	Indicator	Functions
	Charge	Illuminates while the battery pack is charging. See Charging the Battery Pack (page 21) for more information.
	Media Access	Illuminates while data access to a memory card, such as "Memory Stick" and an SD memory card, is in
		progress. (Do not place the computer into Sleep mode or turn it off while this indicator light is lit.) When the
		indicator light is unlit, the memory card is not in use.
	Built-in camera	Illuminates while the built-in camera is in use.
	Disc drive	Illuminates while data access to the built-in storage device or the optical disc drive is in progress. Do not place
		the computer into Sleep mode or turn it off while this indicator light is lit.
	Num lock	Press the Fn+Num Lk keys to activate the numeric keypad. Press the keys a second time to deactivate the
		numeric keypad. The numeric keypad is not active when the indicator light is unlit.
	Caps lock	Press the Caps Lock key to type letters in uppercase. Letters appear in lowercase if you press the Shift key
		while the indicator light is lit. Press the key a second time to turn off the indicator light. Normal typing resumes
		when the Caps lock indicator light is turned off.
	Scroll lock	Press the Fn+Scr Lk keys to change how you scroll the display. Normal scrolling resumes when the Scroll lock
		indicator light is turned off. The Scr Lk key functions differently depending on the program you are using and
		does not work with all programs.
	WIRELESS	Illuminates while one or more wireless options are enabled.

Connecting a Power Source

You can use either an AC adapter or a rechargeable battery pack for supplying power to your computer. Before using the computer for the first time, you need to connect an AC adapter to your computer.

!

Do not use your computer without installing the battery pack as it may cause the computer to malfunction.

Getting Started >
Connecting a Power Source	n 18 N

Using the AC Adapter

While your computer is directly connected to an AC power source and has a battery pack installed, it uses power from the AC outlet.

Use only the supplied AC adapter for your computer.

To use the AC adapter

1Plug one end of the power cord (1) into the AC adapter (3).

2Plug the other end of the power cord into an AC outlet (2).

3Plug the cable from the AC adapter (3) into the DC IN port (4) on the computer.

!

The shape of the DC In plug varies depending on the AC adapter.

To disconnect your computer completely from an AC power source, unplug the AC adapter from the AC outlet. Make sure that an AC outlet is easily accessible.

If you do not intend to use your computer for an extended period of time, place the computer into Hibernate mode. See Using Hibernate Mode (page 26).

Getting Started >
Using the Battery Pack	n 19 N

Using the Battery Pack

The battery pack is already installed on your computer at the time of delivery but is not fully charged.

!

Do not use your computer without installing the battery pack as it may cause the computer to malfunction.

Installing/Removing the Battery Pack

In order to distinguish the battery pack which is installed on your computer at the time of delivery from an extended battery pack (supplied with selected models only), it may be referred to as the primary battery pack in this manual.

For detailed instructions on how to attach and charge an extended battery pack, see the manual that came with your extended battery pack.

To install the battery pack

1Turn off the computer, close the LCD screen lid, and unplug the AC adapter.

2Fit the battery pack into the battery compartment.

The battery pack should be level with the bottom of the computer.

3 Tighten the four rubber screws (1), two short metallic screws (2), and two long metallic screws (3) with a coin.

Getting Started >
Using the Battery Pack	n 20 N

To remove the battery pack

!

You will lose all unsaved data if you remove the battery pack while your computer is on and not connected to the AC adapter.

1Turn off the computer, close the LCD screen lid, and unplug the AC adapter if plugged.

2Unscrew the eight screws with a coin.

!

Be careful not to lose the removed screws.

3 Hook your finger in the cut of the battery pack.

Getting Started >
Using the Battery Pack	n 21 N

4 Pull the battery pack in the direction of the arrow and take it out of the battery compartment.

If your computer does not recognize the battery pack, turn off your computer and push and hold the battery off button for three seconds with a thin, straight object (such as a paper clip). If this does not solve the problem, remove the battery pack and install it once again.

If an extended battery pack is attached to the computer, turn off the computer and remove the extended battery pack. If this does not solve the problem, push and hold the battery off button for three seconds. If the problem persists, remove both battery packs and install them once again.

!

This computer is designed to operate only with genuine Sony battery packs.

Charging the Battery Pack

The battery pack supplied with your computer is not fully charged at the time of delivery.

To charge the battery pack

1 Install the battery pack.

Getting Started >
Using the Battery Pack	n 22 N

2Connect the computer to a power source with the AC adapter.

The charge indicator light is on while the battery pack is charging. When the battery pack charges close to the maximum charge level you selected, the charge indicator turns off.

Charge indicator status	Meaning
Lit in orange	The battery pack is charging.
Blinks along with the green	The battery pack is running out of power.
power indicator	(Normal mode)
Blinks along with the orange	The battery pack is running out of power.
power indicator	(Sleep mode)
Blinks fast in orange	A battery error has occurred due to a failed battery
	pack or an unlocked battery pack.

!

Charge the battery pack as described in this manual from your first battery charge.

Getting Started >
Using the Battery Pack	n 23 N

Keep the battery pack in your computer while it is directly connected to an AC power source. The battery pack continues to charge while you are using the computer.

When the battery pack is running out of power and both the charge and power indicator lights blink, you should either connect the AC adapter to recharge the battery pack or shut down your computer and install a fully charged battery pack.

Your computer is supplied with a lithium ion battery pack and can be recharged any time. Charging a partially discharged battery pack does not affect the life of battery.

While some software applications or peripheral devices are in use, your computer may not enter Hibernate mode even when the remaining battery life becomes short. To avoid loss of data while the computer is running on the battery, you should save your data frequently and manually activate a power management mode, such as Sleep or Hibernate.

If the battery pack runs out of power while the computer is in Sleep mode, you will lose all unsaved data. Going back to the previous work state is impossible. To avoid loss of data, you should save your data frequently.

About the use of an extended battery pack

If an extended battery pack is attached to your computer, the primary battery pack is charged first up to about 80% of its battery capacity. Then, the extended battery pack starts charging up to about 80%. After both battery packs are charged up to about 80%, the primary battery pack starts charging to 100%. Then, the extended battery pack starts charging to 100%.

If an extended battery pack is attached to your computer, battery power of the extended battery pack is used first. Battery power of the primary battery pack will be used after the extended battery pack runs out of power.

Checking the Battery Charge Capacity

The battery charge capacity gradually decreases as the number of battery charging increases or the duration of use of the battery pack extends. To get the most out of the battery pack, check the battery charge capacity and change the battery settings.

Getting Started >
Shutting Down Your Computer Safely	n 24 N

To check the battery charge capacity

1Click Start, All Programs, and VAIO Control Center.

2Click Power Management and Battery.

Additionally, you can enable the battery care function to extend the life of the battery pack.

Extending the Battery Life

When your computer is running on battery power, you can extend the battery life using the following methods.

Decrease the LCD brightness of your computer screen.

Use the power saving mode. See Using the Power Saving Modes (page 25) for more information.

Change the power saving settings on the Power Options. See Using the VAIO Power Management (page 101) for more information.

For more information on how to extend the battery life, see the help file after following the steps in Checking the Battery Charge Capacity (page 23).

Shutting Down Your Computer Safely

To avoid losing unsaved data, be sure to shut down your computer properly, as described below.

To shut down your computer

1Turn off any peripherals connected to the computer.

2Save your data and close all running software applications.

3Click Start and the Shut down button.

After a short time, the computer automatically turns off. Make sure the power indicator light turns off.

Getting Started >
Using the Power Saving Modes	n 25 N

Using the Power Saving Modes

You can take advantage of the power management settings to conserve battery life. In addition to the normal operating mode, your computer has two distinct power saving modes to suit your preference: Sleep and Hibernate.

!

If you do not intend to use your computer for an extended period of time while it is disconnected from an AC power source, place the computer into Hibernate mode or turn it off.

If the battery pack runs out of power while your computer is in Sleep mode, you will lose all unsaved data. Going back to the previous work state is impossible. To avoid loss of data, you should save your data frequently.

Mode	Description
Normal mode	This is the normal state of your computer while it is in use. The green power indicator light is lit while the
	computer is in this mode.
Sleep mode	Sleep mode turns off the LCD screen and places the built-in storage device(s) and the CPU into a low power
	consumption mode. The orange power indicator light blinks slowly while your computer is in this mode. Your
	computer comes out of Sleep mode quicker than out of Hibernate mode. However, Sleep mode uses more
	power than Hibernate mode.
Hibernate mode	While your computer is in Hibernate mode, the state of the system is saved on the built-in storage device(s) and
	power is turned off. Even when the battery pack runs out of power, no data will be lost. The power indicator light
	is unlit while your computer is in this mode.

Using Sleep Mode

To activate Sleep mode

Click Start, the arrow next to the Shut down button, and Sleep.

Getting Started >
Keeping Your Computer in Optimum Condition	n 26 N

To return to Normal mode

Press any key.

Press the power button on your computer.

!

If you press and hold the power button for more than four seconds, your computer will turn off automatically. You will lose all unsaved data.

Using Hibernate Mode

To activate Hibernate mode

Press the Fn+F12 keys.

Alternatively, you can click Start, the arrow next to the Shut down button, and Hibernate.

!

Do not move your computer before its power indicator light turns off.

To return to Normal mode

Press the power button.

!

If you press and hold the power button for more than four seconds, your computer will turn off automatically.

Keeping Your Computer in Optimum Condition

Updating Your Computer

Be sure to update your VAIO computer with the following software applications for enhancing your computer's efficiency, security, and functionality.

Getting Started >
Keeping Your Computer in Optimum Condition	n 27 N

The VAIO Update automatically notifies you of new updates available on the Internet, and downloads and installs them on the computer.

Windows Update

Click Start, All Programs, and Windows Update and then follow the on-screen instructions.

VAIO Update 5

Click Start, All Programs, and VAIO Update and then follow the on-screen instructions.

!

Your computer must be connected to the Internet to download the updates.

Using the Antivirus Software for Your Computer

Protect your computer against computer viruses by using the antivirus software.

You can keep the antivirus software current with the latest updates by downloading and installing the updates from the web site of the manufacturer. To update the antivirus software, find the antivirus software installed on your computer from the following and follow the steps.

!

Your computer must be connected to the Internet to download the updates.

Trend Micro:

1Click Start, All Programs, Trend Micro Titanium Maximum Security, and Trend Micro Titanium Maximum Security.

2Follow the on-screen instructions.

McAfee:

1Click Start, All Programs, McAfee, and McAfee Internet Security or McAfee Total Protection.

2Follow the on-screen instructions.

Norton Internet Security:

Getting Started >
Keeping Your Computer in Optimum Condition	n 28 N

1Click Start, All Programs, Norton Internet Security, and LiveUpdate or Norton Internet Security.

2Follow the on-screen instructions.

See the help file included with your software program for more information.

!

The actual procedure may be different from the above depending on the version of the software installed on your computer. In such a case, follow the on-screen instructions.

Using the VAIO Care

With the VAIO Care, you can regularly conduct performance checks and tune-ups on your computer to keep it running at an optimum level. Launch the VAIO Care whenever a problem is found on your computer. The VAIO Care will provide appropriate measures to solve the problem.

To launch the VAIO Care

On models with the ASSIST button

Press the ASSIST button while your computer is on.

On models without the ASSIST button Click Start, All Programs, and VAIO Care.

!

Do not press the ASSIST button while the computer is in Hibernate mode.

See the help file included with the VAIO Care for more information.

On models with the ASSIST button, pressing the ASSIST button while the computer is off launches the VAIO Care Rescue. The VAIO Care Rescue can be used to recover your computer in case of emergency, for example, when the Windows does not start.

Using Your VAIO Computer >

n 29 N

Using Your VAIO Computer

This section describes how to get the most out of using your VAIO computer.

Using the Keyboard (page 30)

Using the Touch Pad (page 32)

Using Special-function Buttons (page 34)

Using the Quick Web Access Function (page 35)

Using the Built-in Camera (page 37)

Using the Optical Disc Drive (page 38)

Using "Memory Stick" (page 43)

Using Other Modules / Memory Cards (page 47)

Using the Internet (page 50)

Using the Network (LAN) (page 51)

Using the Wireless LAN (page 52)

Using the Wireless WAN (page 55)

Using the International Roaming Service (page 59)

Using the BLUETOOTH Function (page 59)

Using the GPS Function (page 63)

Using Fingerprint Authentication (page 64)

Using the TPM (page 67)

Using Your VAIO Computer >
Using the Keyboard	n 30 N

Using the Keyboard

Your keyboard has additional keys that perform model-specific tasks.

Combinations and Functions with the Fn Key

Some keyboard functions can be used only after the operating system is finished launching.

Combination/Feature		Function
Fn +	(F1): touch pad operation	Disables and enables the touch pad.
Fn + % (F2): muting		Turns on and off the built-in speakers or the headphones.
Fn + 2 (F3/F4): volume control		Changes the built-in speaker volume level.
		To increase the volume, keep pressing the Fn+F4 keys or press the Fn+F4 keys and then the
		M or , key.
		To decrease the volume, keep pressing the Fn+F3 keys or press the Fn+F3 keys and then the
		m or < key.
Fn + 8 (F5/F6): brightness control		Changes the LCD brightness of your computer screen.
		To increase lighting intensity, keep pressing the Fn+F6 keys or press the Fn+F6 keys and then
		the M or , key.
		To decrease lighting intensity, keep pressing the Fn+F5 keys or press the Fn+F5 keys and then
		the m or < key.