Intel 533ANHU Intel Wi-Fi Link 5300 Series User Manual Y550P UG EN

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Date Submitted	2009-09-30 00:00:00
Date Available	2010-03-15 00:00:00
Creation Date	2009-09-28 13:17:00
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Document Lastmod	2009-09-28 13:17:40
Document Title	Y550P UG_EN
Document Author:	Lenovo

Y550P UG V1.0_en.book Page 41 Monday, July 13, 2009 11:36 AM
Chapter 4. OneKey Rescue System
OneKey Rescue System -----------------------------------------------------------„
Introduction
The Lenovo OneKey Rescue System is an easy-to-use application that can
be used to back up the data on your system partition (C drive) for easy
restore when required. You can run Lenovo OneKey Rescue under a
Windows operating system, and the OneKey Rescue System without
starting the Windows operating system.
 Attention:
ƒ In order to utilize the features of the OneKey Rescue System, your hard
disk already includes a hidden partition by default to store a system
image file and OneKey Rescue System program files. This default
partition is hidden for security reasons and is the reason the available
disk space is less than it claims. The exact available hard disk space
depends on the file size of the mirror image file (based on the size of
operating system and preinstalled software).
ƒ You can use the Restore to factory default feature to restore the system
partition (C drive) back to the factory default, i.e., the state your
computer was when you purchased it. Make sure you back up any
critical data stored on the system partition (C drive) to other media, such
as another disk partition, CD/DVD discs or removable storage devices.
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Chapter 4. OneKey Rescue System
„
Using Lenovo OneKey Recovery in Windows
In Windows, you can create a backup of an entire system partition, saving
it on your local hard disk. You can back up your data to a CD, DVD, or
other removable disk. In addition, you can also create Windows recovery
disc(s) to boot and recover your system.
 Notes:
ƒ The backup process and creating recovery disc may take some time, connect
the AC adapter and battery pack to your computer.
ƒ After the recovery discs are burned, please number them so that you can use
them in the correct order.
ƒ For computers without an optical drive, an external optical drive is needed
to back up or to create a recovery disc.
For more instructions, see the help file of Lenovo OneKey
Recovery.
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Chapter 4. OneKey Rescue System
„
Using Lenovo OneKey Recovery System without the main
Windows operating system
In the event that the operating system cannot be loaded, you need to
recover your system with the OneKey Rescue System, which includes
several applications to help you detect and remove viruses, and recover
Windows system and data. Pressing the OneKey Rescue System key
will
activate Lenovo OneKey Rescue System when your PC is turned off.
Within the program, you can restore your system partition to the original
factory status, or to a previously generated backup. You may also transfer
critical data or documents to other storage devices. All these features make
OneKey Rescue System an important utility for securing your data.
 Note:
It is not recoverable if Restore to factory default or Restore from backup
has been run. Make sure to back up any critical data before you run these
features.
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Chapter 5. Troubleshooting
Frequently Asked Questions ------------------------------------------------This section lists frequently asked questions and tells where you can find
detailed answers. For details about each publication included in the package
with your computer, see Lenovo IdeaPad Y550P Setup Poster.
What safety precautions should I follow when using my computer?
See “Chapter 7. Safety, Use and Care Information” for detailed
information about safety.
How can I prevent problems with my computer?
See “Chapter 7. Safety, Use and Care Information” on page 60 of this
guide. More tips can be found in Chapter 1 and 2.
What are the main hardware features of my new computer?
More information can be found in Chapter 1 and 2.
Where can I find the detailed specifications for my computer?
See http://consumersupport.lenovo.com.
I need to upgrade a device or I need to replace one of the following: the hard
disk drive, memory, or the keyboard.
See “Appendix B. Customer Replaceable Units (CRUs)” on page 108 of
this guide.
My computer is not operating properly.
Study the relevant information in Chapter 2.
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Chapter 5. Troubleshooting
Where are the recovery discs?
Your computer did not come with a recovery disc. For an explanation of
the alternative recovery methods offered by Lenovo, see OneKey Rescue
System User Guide.
How can I contact the Customer Support Center?
See “Chapter 6. Getting Help and Service” on page 55 of this Guide. For
the phone numbers of the Customer Support Center nearest to you, see
“Lenovo warranty service telephone numbers” on page 106.
Where can I find warranty information?
For the warranty applicable to your computer, including the warranty
period and type of warranty service, see “Appendix A. Lenovo Limited
Warranty” on page 92.
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Chapter 5. Troubleshooting
Troubleshooting ---------------------------------------------------------------------------If you do not find your problem here, see Chapter 2. The following section only
describes problems that might prevent you from accessing the comprehensive
information in Chapter 2.
„
Display problems
When I turn on the computer, nothing appears on the screen.
 Note:
If you are using an external monitor, see “Computer screen problems” on
page 50.
ƒ If the screen is blank, make sure that:
- The battery is installed correctly.
- The AC adapter is connected to the computer and the power cord is
plugged into a working electrical outlet.
- The computer power is on. (Press the power button again for
confirmation.)
- The memory is installed correctly.
ƒ If these items are properly set, and the screen remains blank, have the
computer serviced.
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Chapter 5. Troubleshooting
When I turn on the computer, only a white cursor appears on a blank
screen.
Restore backed-up files to your Windows environment or the entire
contents of your hard disk to the original factory contents using OneKey
Recovery. If you still see only the cursor on the screen, have the computer
serviced.
My screen goes blank while the computer is on.
Your screen saver or power management may be enabled. Do one of the
following to exit from the screen saver or to resume from sleep or
hibernation mode:
ƒ
ƒ
ƒ
ƒ
Touch the touch pad.
Press any key on the keyboard.
Press the power button.
Press Fn+F2 to confirm whether the LCD screen has been turned off.
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Chapter 5. Troubleshooting
„
A Password problem
I forgot my password.
ƒ If you forgot your user password, you must take your computer to a
Lenovo authorized servicer or a marketing representative to have the
password canceled.
ƒ If you forgot your HDD password, a Lenovo authorized servicer
cannot reset your password or recover data from the hard disk. You
must take your computer to a Lenovo authorized servicer or a
marketing representative to have the hard disk drive replaced. Proof of
purchase is required, and a fee will be charged for parts and service.
ƒ If you forget your supervisor password, a Lenovo authorized servicer
cannot reset your password. You must take your computer to a Lenovo
authorized servicer or a marketing representative to have the system
board replaced. Proof of purchase is required, and a fee will be charged
for parts and service.
„
Keyboard problems
A number appears when you enter a letter.
The numeric lock function is on. To disable it, press Fn + F8.
All or some of the keys on the external numeric keypad do not work.
Make sure that the external numeric keypad is correctly connected to the
computer.
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Chapter 5. Troubleshooting
„
Sleep or hibernation problems
The computer enters sleep mode unexpectedly.
If the processor overheats, the computer automatically enters sleep mode
to allow the computer to cool and to protect the processor and other
internal components. Check the settings for sleep mode.
The computer enters sleep mode immediately after Power-on
self-test (POST).
Make sure that:
ƒ The battery is charged.
ƒ The operating temperature is within the acceptable range. See
“Specifications” on page 109.
If the battery is charged and the temperature is within range, have the
computer serviced.
The critical low-battery error message appears, and the computer
immediately turns off.
The battery power is getting low. Connect the AC adapter to the
computer, or replace the battery with a fully charged one.
The computer does not return from sleep mode and the computer
does not work.
If the computer does not return from sleep mode, it may have entered
hibernation mode automatically because the battery is depleted. Check
the sleep indicator.
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Chapter 5. Troubleshooting
ƒ If your computer is in sleep mode connect the AC adapter to the
computer, then press any key or the power button.
ƒ If your computer is in hibernation mode or power-off state. Connect
the AC adapter to the computer, then press the power button to
resume operation.
If the system still does not return from sleep mode, your system has
stopped responding, and you cannot turn off the computer; reset the
computer. Unsaved data may be lost. To reset the computer, press and
hold the power button for 4 seconds or more. If the computer is still not
reset, remove the AC adapter and the battery.
„
Computer screen problems
The screen is blank.
Do the following:
ƒ If you are using the AC adapter, or using the battery, and the battery
status indicator is on, press Fn + up arrow to make the screen brighter.
ƒ If the Power indicator is in blinking, press the power button to resume
from the sleep mode.
ƒ If the problem persist, follow do the Solution in the following problem
“The screen is unreadable or distorted.”
ƒ Press Fn+F2 to confirm whether the LCD screen has been turned off.
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Chapter 5. Troubleshooting
The screen is unreadable or distorted.
Make sure that:
ƒ The display device driver is installed correctly.
ƒ The screen resolution and color quality are correctly set.
ƒ The monitor type is correct.
Incorrect characters appear on the screen.
Did you install the operating system or application program correctly? If
they are installed and configured correctly, have the computer serviced.
A message, “Unable to create overlay window,” appears when you
try to start DVD playback.
-orYou get poor or no playback of video, DVD or game applications.
Do either of the following:
ƒ If you are using 32-bit color mode, change the color depth to 16-bit
mode.
ƒ If you are using a desktop resolution over the optimum, reduce the
desktop size and the color depth.
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Chapter 5. Troubleshooting
„
Sound problems
No sound can be heard from the speaker even when the volume is
turned up.
Make sure that:
ƒ The Mute function is off.
ƒ The headphone jack is not used.
ƒ Speakers is selected as a playback device.
„
Battery problems
Your computer shuts down before the battery status indicator shows
empty.
-orYour computer operates after the battery status indicator shows
empty.
Discharge and recharge the battery.
The operating time for a fully charged battery is short.
For details, see “Handling the battery” in Chapter 2.
The computer does not operate with a fully charged battery.
The surge protector in the battery might be active. Turn off the computer
for one minute to reset the protector; then turn on the computer again.
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Chapter 5. Troubleshooting
The battery does not charge.
For details, see “Handling the battery” in Chapter 2.
„
A hard disk drive problem
The hard disk drive does not work.
In the Boot menu in BIOS Setup Utility, make sure that the hard disk
drive is included in the “Boot priority order” correctly.
„
A startup problem
The Microsoft® Windows operating system does not start.
Use the OneKey Recovery to help solve or identify your problem. For details
about OneKey Recovery, see OneKey Rescue System User Guide.
„
Other problems
Your computer does not respond.
ƒ To turn off your computer, press and hold the power button for 4
seconds or more. If the computer still does not respond, remove the
AC adapter and the battery.
ƒ Your computer might lock when it enters sleep mode during a
communication operation.
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Chapter 5. Troubleshooting
The computer does not start from a device you want.
See the Boot menu of the BIOS Setup Utility. Make sure that the “Boot
priority order” in the BIOS Setup Utility is set so that the computer starts
from the device you want.
Also make sure that the device from which the computer starts is
enabled. In the Boot menu in the BIOS Setup Utility, make sure that the
device is included in the “Boot priority order” list.
Press F12 when the Lenovo logo appears on the screen while the
computer is starting up to select the device you want the computer starts
from.
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Chapter 6. Getting Help and Service
Getting help and service ---------------------------------------------------------If you need help, service, technical assistance, or just want more
information about Lenovo computers, you will find a wide variety of
sources available from Lenovo to assist you. This section contains
information about where to go for additional information about Lenovo
computers, what to do if you experience a problem with your computer,
and whom to call for service should it be necessary.
Microsoft Service Packs are the latest software source for Windows product
updates. They are available by means of a Web download (connection
charges may apply) or from a disc. For more specific information and links,
go to the Microsoft Web site at http://www.microsoft.com. Lenovo offers
Up and Running technical assistance with installation of, or questions
related to, Service Packs for your Lenovo-preinstalled Microsoft Windows
product.
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Chapter 6. Getting Help and Service
Getting help on the Web ----------------------------------------------------------The Lenovo Web site on the World Wide Web has up-to-date information
about Lenovo computers and support. The address for the Lenovo home
page is http://consumersupport.lenovo.com.
You can find support information for your Lenovo IdeaPad™ computer at
http://consumersupport.lenovo.com. Research this Web site to learn how
to solve problems, find new ways to use your computer, and learn about
options that can make working with your Lenovo computer even easier.
Calling the customer support center -----------------------------------If you have tried to correct the problem yourself and still need help, during
the warranty period, you can get help and information by telephone
through the Customer Support Center. The following services are available
during the warranty period:
ƒ Problem determination - Trained personnel are available to assist you
with determining if you have a hardware problem and deciding what
action is necessary to fix the problem.
ƒ Lenovo hardware repair - If the problem is determined to be caused by
Lenovo hardware under warranty, trained service personnel are
available to provide the applicable level of service.
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Chapter 6. Getting Help and Service
ƒ Engineering change management - Occasionally, there might be changes
that are required after a product has been sold. Lenovo or your reseller, if
authorized by Lenovo, will make selected Engineering Changes (ECs)
available that apply to your hardware.
The following items are not covered:
ƒ Replacement or use of parts not manufactured for or by Lenovo or non
warranted parts
ƒ Identification of software problem sources
ƒ Configuration of BIOS as part of an installation or upgrade
ƒ Changes, modifications, or upgrades to device drivers
ƒ Installation and maintenance of network operating systems (NOS)
ƒ Installation and maintenance of application programs
To determine if your Lenovo hardware product is under warranty and
when the warranty expires, go to http://consumersupport.lenovo.com,
and click Warranty, then follow the instructions on the screen.
Refer to your Lenovo hardware warranty for a full explanation of Lenovo
warranty terms. Be sure to retain your proof of purchase to obtain warranty
service.
If possible, be near your computer when you make your call in case the
technical assistance representative needs to help you resolve a computer
problem. Please ensure that you have downloaded the most current drivers
and system updates, and recorded information before you call. When
calling for technical assistance, please have the following information
available:
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Chapter 6. Getting Help and Service
ƒ Machine Type and Model
ƒ Serial numbers of your computer, monitor, and other components, or
your proof of purchase
ƒ Description of the problem
ƒ Hardware and software configuration information for your system
The telephone numbers for your Customer Support Center location are
located in “Appendix A. Lenovo Limited Warranty” on page 92.
 Note:
Telephone numbers are subject to change without notice. For the latest list
of Customer Support Center telephone numbers and hours of operation,
visit the Support Web site at http://consumersupport.lenovo.com. If the
number for your country or region is not listed, contact your Lenovo
reseller or Lenovo marketing representative.
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Chapter 6. Getting Help and Service
Getting help around the world ---------------------------------------------If you travel with your computer or relocate it to a country where your
Lenovo machine type is sold, your computer might be eligible for
International Warranty Service, which automatically entitles you to obtain
warranty service throughout the warranty period. Service will be
performed by service providers authorized to perform warranty service.
Service methods and procedures vary by country, and some services might
not be available in all countries. Service centers in certain countries might
not be able to service all models of a particular machine type. In some
countries, fees and restrictions might apply at the time of service.
To determine whether your computer is eligible for International Warranty
Service and to view a list of the countries where service is available, go to
http://consumersupport.lenovo.com, click Warranty, and follow the
instructions on the screen.
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Chapter 7. Safety, Use and Care Information
Important safety information ----------------------------------------This information can help you safely use your notebook personal
computer. Follow and retain all information included with your computer.
The information in this document does not alter the terms of your purchase
agreement or the Lenovo Limited Warranty. For more information, see
“Appendix A. Lenovo Limited Warranty” on page 92.
Customer safety is important. Our products are developed to be safe and
effective. However, personal computers are electronic devices. Power
cords, power adapters, and other features can create potential safety risks
that can result in physical injury or property damage, especially if misused.
To reduce these risks, follow the instructions included with your product,
observe all warnings on the product and in the operating instructions, and
review the information included in this document carefully. By carefully
following the information contained in this document and provided with
your product, you can help protect yourself from hazards and create a safer
computer work environment.
 Note:
This information includes references to power adapters and batteries. In
addition to notebook computers, some products (such as speakers and
monitors) ship with external power adapters. If you have such a product,
this information applies to your product. In addition, computer products
contain a coin-sized internal battery that provides power to the system
clock even when the computer is unplugged, so the battery safety
information applies to all computer products.
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Chapter 7. Safety, Use and Care Information
„
Conditions that require immediate action
Products can become damaged due to misuse or neglect. Some product
damage is serious enough that the product should not be used again until it
has been inspected and, if necessary, repaired by an authorized servicer.
As with any electronic device, pay close attention to the product when it is
turned on. On very rare occasions, you might notice an odor or see a puff of
smoke or sparks vent from your product. Or you might hear sounds like
popping, cracking, or hissing. These conditions might merely mean that an
internal electronic component has failed in a safe and controlled manner.
Or, they might indicate a potential safety issue. However, do not take risks
or attempt to diagnose the situation yourself. Contact the Customer
Support Center for further guidance. For a list of Service and Support
phone numbers, see http://consumersupport.lenovo.com.
Frequently inspect your computer and its components for damage or wear
or signs of danger. If you are unsure about the condition of a component,
do not use the product. Contact the Customer Support Center or the
product manufacturer for instructions on how to inspect the product and
have it repaired, if necessary.
In the unlikely event that you notice any of the following conditions, or if
you have any safety concerns with your product, stop using the product
and unplug it from the power source and telecommunication lines until
you can speak to the Customer Support Center for further guidance.
ƒ Power cords, plugs, power adapters, extension cords, surge protectors,
or power supplies that are cracked, broken, or damaged.
ƒ Signs of overheating, smoke, sparks, or fire.
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Chapter 7. Safety, Use and Care Information
ƒ Damage to a battery (such as cracks, dents, or creases), discharge from a
battery, or a buildup of foreign substances on the battery.
ƒ A cracking, hissing, or popping sound, or strong odor that comes from
the product.
ƒ Signs that liquid has been spilled or an object has fallen onto the
computer product, the power cord, or power adapter.
ƒ The computer product, power cord, or power adapter has been exposed
to water.
ƒ The product has been dropped or damaged in any way.
ƒ The product does not operate normally when you follow the operating
instructions.
 Note:
If you notice these conditions with a product (such as an extension
cord) that is not manufactured for or by Lenovo, stop using that
product until you can contact the product manufacturer for further
instructions, or until you get a suitable replacement.
„
Safety guidelines
Always observe the following precautions to reduce the risk of injury
and property damage.
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Chapter 7. Safety, Use and Care Information
„
Service and upgrades
 Attention:
Do not attempt to service a product yourself unless instructed to do so
by the Customer Support Center or your documentation. Only use a
service provider who is approved to repair your particular product.
 Note:
Some computer parts can be upgraded or replaced by the customer.
Upgrades typically are referred to as options. Replacement parts
approved for customer installation are referred to as Customer
Replaceable Units, or CRUs. Lenovo provides documentation with
instructions when it is appropriate for customers to install options or
replace CRUs. You must closely follow all instructions when installing
or replacing parts. The Off state of a power indicator does not
necessarily mean that voltage levels inside a product are zero. Before
you remove the covers from a product equipped with an ac power
cord, always make sure that the power is turned off and that the
product is unplugged from any power source. For more information
on CRUs, see “Appendix B. Customer Replaceable Units (CRUs)” on
page 108. If you have any questions or concerns, contact the Customer
Support Center.
Although there are no moving parts in your computer after the power
cord has been disconnected, the following warnings are required for
your safety.
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Chapter 7. Safety, Use and Care Information
 Danger:
Hazardous moving parts. Keep fingers and other body parts away.
 Attention:
Before replacing any CRUs, turn off the computer and wait three to
five minutes to let the computer cool before opening the cover.
„
Power cords and power adapters
 Danger:
Use only the power cords and power adapters supplied by the product
manufacturer. The power cord and power adapter are intended for use
with this product only. They should never be used with any other
product.
The power cords shall be safety approved. For Germany, it shall be
H03VV-F, 3G, 0.75 mm2, or better. For other countries, suitable types
should be used accordingly.
Never wrap a power cord around a power adapter or other object.
Doing so can stress the cord in ways that can cause the cord to fray,
crack, or crimp. This can present a safety hazard.
Always route power cords or any other cables so that they will not be
walked on, tripped over, or pinched by objects.
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Chapter 7. Safety, Use and Care Information
Protect power cords and power adapters from liquids. For instance, do
not leave your power cord or power adapter near sinks, tubs, toilets, or
on floors that are cleaned with liquid cleansers. Liquids can cause a
short circuit, particularly if the power cord or power adapter has been
stressed by misuse. Liquids also can cause gradual corrosion of power
cord terminals and/or the connector terminals on a power adapter,
which can eventually result in overheating.
Always connect power cords and signal cables in the correct order and
ensure that all power cord connectors are securely and completely
plugged into receptacles.
Do not use any power adapter that shows corrosion at the ac input
pins or shows signs of overheating (such as deformed plastic) at the ac
input or anywhere on the power adapter.
Do not use any power cords where the electrical contacts on either end
show signs of corrosion or overheating or where the power cord
appears to have been damaged in any way.
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Chapter 7. Safety, Use and Care Information
„
Extension cords and related devices
 Danger:
Ensure that extension cords, surge protectors, uninterruptible power
supplies, and power strips that you use are rated to handle the
electrical requirements of the product. Never overload these devices. If
power strips are used, the load should not exceed the power strip
input rating. Consult an electrician for more information if you have
questions about power loads, power requirements, and input ratings.
„
Plugs and outlets
 Danger:
If a receptacle (power outlet) that you intend to use with your
computer equipment appears to be damaged or corroded, do not use
the outlet until it is replaced by a qualified electrician.
Do not bend or modify the plug. If the plug is damaged, contact the
manufacturer to obtain a replacement.
Do not share an electrical outlet with other home or commercial
appliances that draw large amounts of electricity; otherwise, unstable
voltage might damage your computer, data, or attached devices.
Some products are equipped with a three-pronged plug. This plug fits
only into a grounded electrical outlet. This is a safety feature. Do not
defeat this safety feature by trying to insert it into a non-grounded
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Chapter 7. Safety, Use and Care Information
outlet. If you cannot insert the plug into the outlet, contact an
electrician for an approved outlet adapter or to replace the outlet with
one that enables this safety feature. Never overload an electrical outlet.
The overall system load should not exceed 80 percent of the branch
circuit rating. Consult an electrician for more information if you have
questions about power loads and branch circuit ratings.
Be sure that the power outlet you are using is properly wired, easily
accessible, and located close to the equipment. Do not fully extend
power cords in a way that will stress the cords.
Be sure that the power outlet provides the correct voltage and current
for the product you are installing.
Carefully connect and disconnect the equipment from the electrical
outlet.
„
Power supply statement
 Danger:
Never remove the cover on a power supply or any part that has the
following label attached.
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Chapter 7. Safety, Use and Care Information
Hazardous voltage, current, and energy levels are present inside any
component that has this label attached. There are no serviceable parts
inside these components. If you suspect a problem with one of these
parts, contact a service technician.
„
Lithium coin cell battery notice
 Danger:
Danger of explosion if battery is incorrectly replaced.
When replacing the lithium coin cell battery, use only the same or an
equivalent type that is recommended by the manufacturer. The battery
contains lithium and can explode if not properly used, handled, or
disposed of.
Do not:
ƒ Throw or immerse into water
ƒ Heat to more than 100°C (212°F)
ƒ Repair or disassemble
Dispose of the battery as required by local ordinances or regulations.
The following statement applies to users in the state of California, U.S.A.
California Perchlorate Information:
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Chapter 7. Safety, Use and Care Information
Products containing CR (manganese dioxide) lithium coin cell
batteries may contain perchlorate.
Perchlorate Material — special handling may apply.
See http://www.dtsc.ca.gov/hazardouswaste/perchlorate.
„
Heat and product ventilation
 Danger:
Computers, AC adapters, and many accessories can generate heat
when turned on and when batteries are charging. Notebook computers
can generate a significant amount of heat due to their compact size.
Always follow these basic precautions:
ƒ When your computer is turned on or the battery is charging, the base, the
palm rest, and some other parts may become hot. Avoid keeping your
hands, your lap, or any other part of your body in contact with a hot
section of the computer for any extended length of time. When you use
the keyboard, avoid keeping your palms on the palm rest for a
prolonged period of time. Your computer generates some heat during
normal operation. The amount of heat depends on the amount of system
activity and the battery charge level. Extended contact with your body,
even through clothing, could cause discomfort or even a skin burn.
Periodically take breaks from using the keyboard by lifting your hands
from the palm rest; and be careful not to use the keyboard for any
extended length of time.
ƒ Do not operate your computer or charge the battery near flammable
materials or in explosive environments.
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Chapter 7. Safety, Use and Care Information
ƒ Ventilation slots, fans and/or heat sinks are provided with the product
for safety, comfort, and reliable operation. These areas might
inadvertently become blocked by placing the product on a bed, sofa,
carpet, or other flexible surface. Never block, cover, or disable these
features.
ƒ When the AC adapter is connected to an electrical outlet and your
computer, it generates heat. Do not place the adapter in contact with any
part of your body while using it. Never use the AC adapter to warm
your body. Extended contact with your body, even through clothing,
may cause a skin burn.
For your safety, always follow these basic precautions with your computer:
ƒ Keep the cover closed whenever the computer is plugged in.
ƒ Regularly inspect the outside of the computer for dust accumulation.
ƒ Remove dust from vents and any perforations in the bezel. More
frequent cleanings might be required for computers in dusty or hightraffic areas.
ƒ Do not restrict or block any ventilation openings.
ƒ Do not operate your computer inside furniture, as this might increase the
risk of overheating.
ƒ Airflow temperatures into the computer should not exceed 35° C (95° F).
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„
CD and DVD drive safety
 Danger:
CD and DVD drives spin discs at a high speed. If a CD or DVD is
cracked or otherwise physically damaged, it is possible for the disc to
break apart or even shatter when the CD drive is in use. To protect
against possible injury due to this situation, and to reduce the risk of
damage to your computer, do the following:
ƒ Always store CD/DVD discs in their original packaging.
ƒ Always store CD/DVD discs out of direct sunlight and away from direct
heat sources.
ƒ Remove CD/DVD discs from the computer when not in use.
ƒ Do not bend or flex CD/DVD discs, or force them into the computer or
their packaging.
ƒ Check CD/DVD discs for cracks before each use. Do not use cracked or
damaged discs.
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Chapter 7. Safety, Use and Care Information
„
Electrical current safety information
 Danger:
Electric current from power, telephone, and communication cables is
hazardous.
To avoid a shock hazard:
ƒ Do not use your computer during a lightning storm.
ƒ Do not connect or disconnect any cables or perform installation,
maintenance, or reconfiguration of this product during an electrical
storm.
ƒ Connect all power cords to a properly wired and grounded electrical
outlet.
ƒ Connect to properly wired outlets any equipment that will be attached to
this product.
ƒ Whenever possible, use one hand only to connect or disconnect signal
cables.
ƒ Never turn on any equipment when there is evidence of fire, water, or
structural damage.
ƒ Disconnect the attached power cords, battery pack, and all the cables
before you open the device covers, unless instructed otherwise in the
installation and configuration procedures.
ƒ Do not use your computer until you have closed the cover. Never use the
computer when the cover is open.
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Chapter 7. Safety, Use and Care Information
ƒ Connect and disconnect cables as described in the following procedures
when installing, moving, or opening covers on this product or attached
devices.
To connect:
1. Turn everything OFF.
2. First, attach all cables to devices.
3. Attach signal cables to connectors.
4. Attach power cords to outlets.
5. Turn devices ON.
To disconnect:
1. Turn everything OFF.
2. First, remove power cords from outlets.
3. Remove signal cables from connectors.
4. Remove all cables from devices.
The power cord must be disconnected from the wall outlet or receptacle
before installing all other electrical cables connected to your computer.
The power cord may be reconnected to the wall outlet or receptacle only
after all other electrical cables have been connected to the computer.
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Chapter 7. Safety, Use and Care Information
„
Laser compliance statement
Some personal computer models are equipped from the factory with a
CD or DVD drive. CD and DVD drives are also sold separately as
options. CD and DVD drives are laser products. The drive’s
classification label (shown below) is on the surface of the drive.
CLASS 1 LASER PRODUCT
LASER KLASSE 1
LUOKAN 1 LASERLAITE
APPAREIL A LASER DE CLASSE 1
KLASS 1 LASER APPARAT
Example of the label
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Chapter 7. Safety, Use and Care Information
These drives are certified in the U.S. to conform to the
requirements of the Department of Health and Human Services 21
Code of Federal Regulations (DHHS 21 CFR) Subchapter J for
Class 1 laser products. Elsewhere, these drives are certified to
conform to the requirements of the International Electrotechnical
Commission (IEC) 60825-1 and CENELEC EN 60825-1 for Class 1
laser products.
Class 1 laser products are not considered hazardous. The design of
the laser system and the optical storage drive ensures that there is
no exposure to laser radiation above a Class 1 level during normal
operation, user maintenance, or servicing.
When a CD or DVD drive is installed, note the following
handling instructions.
 Danger:
Use of controls, adjustments, or performance of procedures other
than those specified herein might result in hazardous radiation
exposure.
Do not remove the drive covers. Removing the covers of the CD or
DVD drive could result in exposure to hazardous laser radiation.
There are no serviceable parts inside the CD or DVD drive.
Some CD and DVD drives contain an embedded Class 3A or
Class 3B laser diode. Note the following statement.
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Chapter 7. Safety, Use and Care Information
 Danger:
Laser radiation when open. Do not stare into the beam, do not view
directly with optical instruments, and avoid direct exposure to the
beam.
„
Liquid crystal display (LCD) notice
 Attention:
Mercury Information (does not apply to LED backlit models):
The fluorescent lamp in the liquid crystal display contains mercury;
dispose according to local, state or federal laws.
The LCD is made of glass, and rough handling or dropping the
computer can cause the LCD to break. If the LCD breaks and the
internal liquid crystal material contacts the eyes, mouth or clothing,
take the following actions immediately :
In case contact to the eyes or mouth, rinse with large amount of
running water for more than 15 minutes. If any symptoms are present
after washing, get medical care.
In case contact to the skin or clothing, wipe it immediately and wash
with soap and large amount of running water for more than 15
minutes. The skin or clothing maybe damaged if liquid crystal material
is left adhered.
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Chapter 7. Safety, Use and Care Information
Caring your computer ---------------------------------------------------------------Though your computer is designed to function reliably in normal work
environments, you need to use common sense in handling it. By following
these important tips, you will get the most use and enjoyment out of your
computer.
„
Be careful about where and how you work
ƒ Do not leave the base of your computer, or any other part that becomes
hot during operation, in contact with your lap or any part of your body
for an extended period when the computer is functioning or when the
battery is charging. Your computer dissipates some heat during normal
operation. This heat is a function of the level of system activity and
battery charge level. Extended contact with your body, even through
clothing, could cause discomfort or, eventually, a skin burn.
ƒ When the AC adapter is connected to an electrical outlet and your
computer, it generates heat. Do not place the adapter in contact with any
part of your body while using it. Never use the AC adapter to warm
your body. Extended contact with your body, even through clothing,
may cause a skin burn.
ƒ Route the cables of an AC adapter, a mouse, a keyboard, a printer, or any
other electronic device, or communication lines, so that they cannot be
walked on, tripped over, pinched by your computer or other objects, or in
any way subjected to treatment that could disturb the operation of your
computer. Applying strong force to the cables may damage or break them.
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Chapter 7. Safety, Use and Care Information
ƒ Place liquids away from your computer to avoid spills, and keep your
computer away from water (to avoid the danger of electrical shock).
ƒ Do not eat or smoke over your keyboard. Particles that fall into your
keyboard can cause damage.
ƒ Store packing materials safely out of the reach of children to prevent the
risk of suffocation from plastic bags.
ƒ Keep your computer away from magnets, activated cellular phones,
electrical appliances, or speakers (within 13 cm or 5 in).
ƒ Avoid subjecting your computer to extreme temperatures (below 5°C/
41°F or above 35°C/95°F).
ƒ Some appliances, such as certain portable desktop fans or air purifiers,
can produce negative ions. If a computer is close to such an appliance,
and is exposed for an extended time to air containing negative ions, it
may become electrostatically charged. Such a charge may be discharged
through your hands when you touch the keyboard or other parts of the
computer, or through connectors on I/O devices connected to it. Even
though this kind of electrostatic discharge (ESD) is the opposite of a
discharge from your body or clothing to the computer, it poses the same
risk of a computer malfunction.
Your computer is designed and manufactured to minimize any effects of
electrostatic charge. An electrostatic charge above a certain limit,
however, can increase the risk of ESD. Therefore, when using the
computer close to an appliance that can produce negative ions, give
special attention to the following:
- Avoid directly exposing your computer to the air from an appliance
that can produce negative ions.
- Keep your computer and peripherals as far as possible from such an
appliance.
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Chapter 7. Safety, Use and Care Information
- Wherever possible, ground your computer to facilitate safe
electrostatic discharge.
 Note:
Not all such appliances cause a significant electrostatic charge.
When you handle options or CRUs, or perform any work inside the
computer, take the following precautions to avoid static-electricity
damage:
- Limit your movement. Movement can cause static electricity to build
up around you.
- Always handle components carefully. Handle adapters, memory
modules, and other circuit boards by the edges. Never touch exposed
circuitry.
- Prevent others from touching components.
- When you install a static-sensitive option or CRU, touch the staticprotective package containing the part to a metal expansion-slot cover
or other unpainted metal surface on the computer for at least two
seconds. This reduces static electricity in the package and your body.
- Whenever possible, remove the static-sensitive part from the staticprotective packaging and install the part without setting it down.
When this is not possible, place the static-protective packaging on a
smooth, level surface and place the part on it.
- Do not place the part on the computer cover or other metal surface.
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Chapter 7. Safety, Use and Care Information
„
Be gentle with your computer
ƒ Avoid placing any objects (including paper) between the display and the
keyboard or under the keyboard.
ƒ Do not drop, bump, scratch, twist, hit, vibrate, push, or place heavy
objects on your computer, display, or external devices.
ƒ Avoid turning the display beyond 127°.
„
Carry your computer properly
ƒ Before moving your computer, be sure to remove any media, turn off
attached devices, and disconnect cords and cables.
ƒ Be sure your computer is in sleep or hibernation mode, or turned off,
before moving it. This will prevent damage to the hard disk drive and
data loss.
ƒ When picking up your open computer, hold it by the bottom. Do not
pick up or hold your computer by the display.
ƒ Use a quality carrying case that provides adequate cushion and
protection. Do not pack your computer in a tightly packed suitcase or
bag.
„
For outdoor use
ƒ
ƒ
ƒ
ƒ
80
Backup your critical data before you take your computer outdoors.
Ensure that the battery is full.
Be sure to turn off the power and close the LCD well.
Do not leave anything between the closed LCD and the keyboard.
Y550P UG V1.0_en.book Page 81 Monday, July 13, 2009 11:36 AM
Chapter 7. Safety, Use and Care Information
ƒ When you leave the computer in your car, place it on the back seat to
avoid being insolated.
ƒ Carry the AC adapter and power cord with the computer.
„
Handle storage media and drives properly
ƒ If your computer comes with an optical drive, do not touch the surface of
a disc or the lens on the tray.
ƒ Wait until you hear the CD or DVD click into the center pivot of an
optical drive before closing the tray.
ƒ When installing your hard disk, follow the instructions shipped with
your hardware, and apply pressure only where needed on the device.
„
Data safety
ƒ Do not delete unknown files or change the name of files or directories
that were not created by you; otherwise, your computer software might
fail to work.
ƒ Be aware that accessing network resources can leave your computer
vulnerable to computer viruses, hackers, spyware, and other malicious
activities that might damage your computer, software, or data.
ƒ It is your responsibility to ensure that you have adequate protection in
the form of firewalls, antivirus software, and anti-spyware software and
keep this software up to date.
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Chapter 7. Safety, Use and Care Information
„
Take care in setting passwords
ƒ Remember your passwords. If you forget a supervisor or hard disk
password, Lenovo authorized service providers will not reset it, and you
might have to replace your system board or hard disk drive.
„
Other important tips
ƒ Your computer might have both an Ethernet connector and a modem
connector. If so, be sure to connect your communication cable to the
correct one, so your connector is not damaged.
ƒ Register your Lenovo products with Lenovo (refer to the Web page:
http://consumersupport.lenovo.com). This can help authorities return your
computer to you if it is lost or stolen. Registering your computer also enables
Lenovo to notify you about possible technical information and upgrades.
ƒ Only an authorized Lenovo repair technician should disassemble and
repair your computer.
ƒ Do not modify or tape the latches to keep the display open or closed.
ƒ Take care not to turn your computer over while the AC adapter is
plugged in. This could break the adapter plug.
ƒ Turn off your computer if you are replacing a device, or else verify that
the device is warm- or hot-swappable.
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Chapter 7. Safety, Use and Care Information
ƒ Before you install any of the following devices, touch a metal table or a
grounded metal object. This action reduces any static electricity from
your body. The static electricity could damage the device.
- ExpressCard
- Memory Card, such as SD Card, Memory Stick, MultiMedia Card,
xD-Picture Card, and Memory Stick Pro card.
- Memory module
ƒ When transferring data to or from a Flash Media Card, such as an SD
card, do not put your computer in sleep or hibernation mode before the
data transfer is complete. To do so might cause damage to your data.
„
Cleaning the cover of your computer
Occasionally clean your computer as follows:
1 Prepare a mixture of a gentle kitchen-use detergent (one that does not
contain abrasive powder or strong chemicals such as acid or alkaline).
Use 5 parts water to 1 part detergent.
2 Absorb the diluted detergent into a sponge.
3 Squeeze excess liquid from the sponge.
4 Wipe the cover with the sponge, using a circular motion and taking
care not to let any excess liquid drip.
5 Wipe the surface to remove the detergent.
6 Rinse the sponge with clean running water.
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Chapter 7. Safety, Use and Care Information
7 Wipe the cover with the clean sponge.
8 Wipe the surface again with a dry, soft lint-free cloth.
9 Wait for the surface to dry completely and remove any cloth fibers
from the computer surface.
 Note:
Shut down the computer and then disconnect the power cord before
cleaning the computer.
„
Cleaning your computer keyboard
1 Absorb some isopropyl rubbing alcohol on a soft, dust-free cloth.
2 Wipe each keytop surface with the cloth. Wipe the keys one by one; if
you wipe several keys at a time, the cloth may hook onto an adjacent
key and possibly damage it. Make sure that no liquid drips onto or
between the keys.
3 Allow to dry.
4 To remove any crumbs and dust from beneath the keys, you can use a
camera blower with a brush or cool air from a hair drier.
 Note:
Avoid spraying cleaner directly on the display or the keyboard.
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Chapter 7. Safety, Use and Care Information
„
Cleaning your computer display
1 Gently wipe the display with a dry, soft lint-free cloth. If you see a
scratchlike mark on your display, it might be a stain transferred from
the keyboard when the cover was pressed from the outside.
2 Wipe or dust the stain gently with a soft, dry cloth.
3 If the stain remains, moisten a soft, lint-free cloth with water or a 50-50
mixture of isopropyl alcohol and water that does not contain
impurities.
4 Wring out as much of the liquid as you can.
5 Wipe the display again; do not let any liquid drip into the computer.
6 Be sure to dry the display before closing it.
Accessibility and comfort ------------------------------------------------------As your computer enables you to work in so many places, it is important
that you remain attentive to good posture, good lighting, and proper
seating. By keeping these considerations in mind, you can improve
performance and achieve greater comfort. Lenovo is committed to
providing the latest information and technology to our customers with
disabilities.
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Chapter 7. Safety, Use and Care Information
„
Ergonomic information
Working in the virtual office may mean adapting to frequent changes in
your environment. Following some simple rules will make things easier
and bring you the maximum benefits of your computer. Keeping in mind
such basics as good lighting and proper seating, for example, can help you
improve your performance and achieve greater comfort.
 Note:
This example shows someone in a conventional setting. Even if you work
in a casual, less conventional setting, many of the tips in this section still
apply. Develop good habits, and they will serve you well.
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Chapter 7. Safety, Use and Care Information
General Posture: Below are some general recommendations for assuming a
healthy working posture. It is best to periodically make minor
modifications in your working posture to deter the onset of discomfort
caused by long periods of working in the same position. Frequent, short
breaks from your work will also help to prevent any minor discomfort
associated with your working posture.
Display: Position the display to maintain a comfortable viewing distance of
510-760 mm (20-30 inches). Avoid glare or reflections on the display from
overhead lighting or outside sources of light. Keep the display screen clean
and set the brightness to levels that enable you to see the screen clearly.
Press Fn + up/down arrow to adjust display brightness.
Head Position: Keep your head and neck in a comfortable and neutral
(vertical, or upright) position.
Chair: Use a chair that gives you good back support and seat height
adjustment. Use chair adjustments to best suit your desired posture.
Arm and Hand Position: If available, utilize chair arm rests or an area on
your working surface to provide weight support for your arms. Keep your
forearms, wrists, and hands in a relaxed and neutral (horizontal) position.
Type with a soft touch without pounding the keys.
Leg Position: Keep your thighs parallel to the floor and your feet flat on the
floor or on a footrest.
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Chapter 7. Safety, Use and Care Information
„
What if you are traveling?
It may not be possible to observe the best ergonomic practices when you
are using your computer while on the move or in a casual setting.
Regardless of the setting, try to observe as many of the tips as possible.
Sitting properly and using adequate lighting, for example, will help you
maintain desirable levels of comfort and performance.
„
Questions about vision?
Your computer’s visual display screen is designed to meet the highest
standards and to provide you with clear, crisp images and large, bright
displays that are easy to see, yet easy on the eyes. Of course, any
concentrated and sustained visual activity can be tiring. If you have
questions on eye fatigue or visual discomfort, consult a vision care
specialist for advice.
Maintenance --------------------------------------------------------------------------------An important part of owning your computer is maintenance. With proper
care, you can avoid common problems. The following sections provide
information that can help you to keep your computer running smoothly.
88

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