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        Lenovo IdeaPad Y500
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1.                                                                              C  So          Chapter 1  Getting to know your computer    The following describes the features of each function key     Fn   Esc   Fn   Fi   Fn   F2   Fn   F3   Fn   F5   Fn   F6   Fn   F9   Fn   F10   Fn   F11   Fn   F12   Fn   PrtSc     Fn   Insert  Y500    Fn   PgUp  Y400      Fn   Home    Fn   End    Fn   PgDn  Y400    Fn  7 4   En 5 e     Fn   Space     on select models      Cancel hotkey    Enter sleep mode    Turn on off the backlight of the LCD screen   Open the interface for selecting display options   Toggle airplane mode on  off    Enable  Disable the touchpad    Open Settings charm    Open Search charm    View current Apps    View all Apps     Activate the system request   Enable  Disable the scroll lock     Activate the pause function   Activate the break function   Activate the insert function   Increase  Decrease display brightness     Increase  Decrease sound volume     Turn on off the keyboard backlight     E     Chapter 1  Getting to know your computer    Left side view    Y400                                  69000 ron A eS  Ex                                                                                  D  sse                            Novo button When the computer is off  press this button to start the Lenovo OneKey  Recovery system or the BIOS setup utility  or to enter the boot menu    AC power adapter Connect the AC adapter here    jack   Ventilation slots Dissipate inter
2.                                                                  34    Chapter 1  Getting to know your computer    8 Top view    m Y400                              LJ UUU   CIDUDUDDULOUDUL IO  Cc JLJCOLUCOCOCOCOCU COL DUC ggu  CJOCOOC 7 J XOXC JOOO                                                 Note  The illustrations in this manual may differ from the actual product  Please refer to the actual product     O Attention   e Do NOT open the display panel beyond 130 degrees  When closing the display panel  be careful NOT to  leave pens or any other objects in between the display panel and the keyboard  Otherwise  the display  panel may be damaged     Chapter 1  Getting to know your computer                                                                                           m Y500  OU  DUO JULU  E  Integrated camera Use the camera for video communication   E Built in microphone Captures sound which can be used for video conferencing  voice narration    with noise reduction  9r audio recording   El Computer display Provides brilliant visual output   E  Power button Press this button to turn on the computer   EH JBL speakers Provide audio output     Chapter 1  Getting to know your computer    Touchpad The touchpad functions as a conventional mouse   One Piece multi touch clickpad  To move the cursor on the screen  slide  your fingertip over the pad in the direction in which you want the cursor  to move   Left click area  The function corresponds to that of the left mouse but
3.                       am            i    Q             10    Chapter 1  Getting to know your computer    m Y500                                                                                                                                                          Kl Headphone jack Connects to external headphones        Attention     Listening to music at high volume over extended periods of time may damage your hearing     El Microphone jack Connects to external microphones     11    Chapter 1  Getting to know your computer       12    USB port Connects to USB devices     Note     The yellow port supports USB 2 0    For details  see  Connecting USB devices  on page 8    When powered off  the port can charge most currently available external USB devices  Support of  future USB devices cannot be guaranteed    The USB always on function  enabled in BIOS Setup Utility  is available only when the battery or  AC adapter powers the computer  If an external USB device cannot be charged  connect the AC  adapter to activate     Removable optical drive  Optional  EZ   Removable graphics  Optional   Reads Burns optical discs       WN       Note     Y400 is supplied with ODD  dummy ODD   Y500 is supplied with ODD  dummy ODD or removable graphics     Kensington slot Attach a security lock  not supplied  here to help    protect your computer from theft and unauthorized  use    You can attach a security lock to your computer to help  prevent it from being removed without your  permission  F
4.    Use this feature when the operating system fails to start up  If there is critical data on the  system partition  back it up before starting recovery     B BIOS setup utility    What is BIOS setup utility   The BIOS setup utility is ROM based software  It communicates basic computer information  and provides options for setting boot devices  security  hardware mode  and other  preferences     How can I start the BIOS setup utility   To start the BIOS setup utility   O Shut down the computer       Press the Novo button and then select BIOS Setup     How can I change the boot mode   There are two boot modes  UEFI and Legacy  To change the boot mode  start the BIOS setup  utility and set boot mode to UEFI or Legacy support on the boot menu     When do I need to change the boot mode   The default boot mode for your computer is the UEFI mode  If you need to install legacy  Windows operating system  operating system before Windows 8  on your computer  you  must change the boot mode to Legacy support  The legacy Windows operating system cannot  be installed if you don t change the boot mode     B Getting help    How can I contact the customer support center   See  Chapter 3  Getting help and service  of Lenovo Safety and General Information Guide     26    8 Troubleshooting    Display problems    When   turn on the computer   nothing appears on the screen     When   turn on the computer  only a  white cursor appears on a blank  Screen     My screen goes blank while the  computer 
5.   The dummy card is used for preventing dust and small particles from entering the inside of your  computer when the memory card slot is not in use  Retain the dummy card for future use       Slide the memory card in until it clicks into place   Removing a memory card    Push the memory card in until you hear a click       Gently pull the memory card out of the memory card slot     Note  Before removing the memory card  disable it by Windows safely remove hardware and eject media  utility to avoid data corruption     Chapter 1  Getting to know your computer    8 Bottom view    m Y400                   Battery latch   manual The manual battery latch is used to keep the battery pack secured in place     Battery pack    Battery latch   spring The spring loaded battery latch keeps the battery pack secured in place   loaded    Removable module  lock    Louvers Allow air to enter the computer for cooling     15    Chapter 1  Getting to know your computer    m Y500                                  Battery latch   manual The manual battery latch is used to keep the battery pack secured in place     Battery pack    Battery latch   spring The spring loaded battery latch keeps the battery pack secured in place   loaded    Removable module  lock    Louvers Allow air to enter the computer for cooling     16    Chapter 2  Starting to use Windows 8    8 Configuring the operating system for the first time    You may need to configure the operating system when it is first used  The configurat
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7. cannot turn off the computer  please 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     Do the following      If you are using the AC adapter  or using the battery  and the  battery status indicator is on  press Fn   1 to make the screen  brighter      If the power indicator is in blinking  press the power button to  resume from Sleep mode      If the problem persists  follow the solution to the following  problem  The screen is unreadable or distorted       Press Fn   F2 to confirm whether the LCD screen has been turned  off     Make sure that      The display device driver is installed correctly      The screen resolution and color quality are correctly set     The monitor type is correct     Are the operating system or programs installed correctly  If they are  installed and configured correctly  have the computer serviced     Make sure that      The Mute function is off      The headphone jack is not used      Speakers are selected as the playback device     Battery problems    Your computer shuts down before  the battery status indicator shows  empty     or    Your computer operates after the  battery status indicator shows  empty     The operating time for a fully  charged battery is short     The computer does not operate with  a fully charged battery   The battery does not charge     A hard disk drive problem    The 
8. e the manual battery latch to the locked position   y P  Turn the computer over again   P 8    Connect the AC adapter and the cables to the computer     31    32    Appendix  CRU instructions    8 Replacing the removable module    Note       Before replacing the removable module  turn off your computer and disconnect the AC adapter and all  cables       This section takes the ODD module for example   Remove the battery pack   Push the latch in the direction shown by the arrow Efl     Holding the spring loaded latch in the unlocked position EJ   Gently pull out the optional module KJ                       Appendix  CRU instructions    O Gently push the removable DVD Burner into the module compartment E   6 Lock the latch in the direction shown by the arrow Efl        Q Install the battery pack     The following table provides a list of CRUs  Customer Replaceable Units  for your computer   and informs you of where to find replacement instructions                    Setup Poster User Guide  AC adapter O  Power cord for AC adapter O  Battery O O  Optical drive Oo                   33    Trademarks    The following terms are trademarks or registered trademarks of Lenovo in the United States  other  countries  or both     Lenovo  IdeaPad  OneKey    Microsoft and Windows are trademarks of Microsoft Corporation in the United States  other  countries  or both     Other company  products  or service names may be trademarks or service marks of others     34    lenovo     V1 0_en US    Z
9. ecovery system    24    The Lenovo OneKey Recovery system is software designed to back up and restore your  computer  You can use it to restore the system partition to its original status in case of a system  failure  You can also create user backups for easy restoration as required   Note  To utilize the features of the OneKey Recovery system  your hard disk already includes a hidden  partition by default to store the system image file and the OneKey Recovery system program files     This default partition is hidden for security reasons  which explains why the available disk space is  less than the stated capacity     Backing up the system partition    You can back up the system partition to an image file  To back up the system partition     Press the Novo button to start the Lenovo OneKey Recovery system       Click System Backup   O Select a back up location and click Next to start the backup     Note    e You can choose a back up location on the local hard disk drive or an external storage device      Remove the removable HDD when starting the Lenovo Onekey Recovery system  otherwise  removable HDD data might be lost    e The back up process may take a while    e The back up process is only available when Windows can be started normally     Restoring    You can choose to restore the system partition to its original status or to a previously created  back up point  To restore the system partition     Press the Novo button to start the Lenovo OneKey Recovery system       Cl
10. g time  shut it down   To shut down your computer      1  Open the charms  select Settings G         Select Power     Shut down        21    Chapter 2  Starting to use Windows 8    22    Connecting to wireless LAN    Enabling a wireless connection  To enable wireless functions  do one of the following       Press to disable airplane mode       Open the charms and select Settings fe   gt  O to open the Network configuration page   Then toggle the airplane mode switch to off     Connecting to a wireless network    After wireless has been enabled  the computer will automatically scan for available wireless  networks and display them in the wireless network list  To connect to a wireless network  click  the network name in the list  and then click Connect     Note  Some networks require a network security key or passphrase for connection  To connect to one of  those networks  ask the network administrator or the Internet service provider  ISP  for the  security key or passphrase        Chapter 2  Starting to use Windows 8    Help and support    If you have problem about the operating system  see the Windows Help and Support file  To  open the Windows Help and Support file  do one of the following      Select Settings charm  then select Help      Press Windows key   F1        You can read the Windows Help and Support file on your computer  You can also get online help  and support by clicking on one of the two links listed under More to explore     23    Chapter 3  Lenovo OneKey R
11. hard disk drive does not work     OneKey Recovery system problems    Backup cannot be made     Fail to restore system partition to  factory default     Chapter 4  Troubleshooting    Discharge and recharge the 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     In the Boot menu in BIOS setup utility  make sure that the hard disk  drive is included in the Boot Device Priority correctly     You are not currently using a Windows operating system   There is not enough space to store the backed up data  You will need  to free more hard disk space on your backup partition     The system partition  such as the partition size or the drive capacity  has been modified     29    Chapter 4  Troubleshooting    Other problems    30    Your computer does not respond     The computer does not start a  device you want     The connected external device does  not work     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    Your computer might lock when it enters sleep mode during a  communication operation  Disable the sleep timer when you are  working on the network     See the Boot menu of the BIOS setup utility  Make sure that the Boot  Device Priority in the BIOS setup utility is set so that the computer  starts from the device you want    Also make sure that the device f
12. ick System Recovery  The computer will restart to the recovery environment     O Follow the on screen instructions to restore the system partition to its original status or to a  previously created back up point     Note      The recovery process is irreversible  Make sure to back up any data you wish to save on the system  partition before starting the recovery process      The recovery process may take a while  So be sure to connect the AC adapter to your computer during  the recovery process    e The above instructions should be followed when Windows can be started normally     If Windows cannot be started  then follow the steps below to start the Lenovo OneKey Recovery  system   O Shut down the computer       Press the Novo button  From the Novo button menu  select the Lenovo OneKey Recovery  system and press Enter     Chapter 4  Troubleshooting    8 Frequently asked questions    This section lists frequently asked questions by category     m Finding information    What safety precautions should I follow when using my computer   The Lenovo Safety and General Information Guide which came with your computer contains  safety precautions for using your computer  Read and follow all the precautions when using  your computer     Where can I find the hardware specifications for my computer   You can find hardware specification for your computer from the printed flyers which came  with your computer     Where can I find warranty information   For the warranty applicable to your c
13. ion process  may include the procedures below      Accepting the end user license agreement     Configuring the Internet connection     Registering the operating system     Creating a user account    8 Operating system interfaces    Windows 8 comes with two main user interfaces  the Start screen and the Windows desktop   To switch from the Start screen to the Windows desktop  do one of the following      Select the Windows desktop tile on the Start screen      Press the Windows key   D     To switch from desktop to Start screen  do one of the following     Select Start EE  from charms       Move the cursor to the lower left corner and then select the Start screen thumbnail when it is  displayed     Start screen Desktop       17    Chapter 2  Starting to use Windows 8    8 The charms    The five charms provide new and faster ways to perform many basic tasks  and are always  available regardless of whichever app you are currently in   To display the charms  do one of the following       Move the cursor to the upper right or lower right corner until the charms bar is displayed     Press Windows key   C        Search charm    The Search charm is a powerful new way to find what you are looking for  including apps   settings and files        18    Chapter 2  Starting to use Windows 8    Share charm    The Share charm lets you send links  photos  and more to your friends and social networks  without leaving the app you are in     C Start charm    The Start charm is a fast way to go 
14. is on     BIOS Password problems      forgot my password     Chapter 4  Troubleshooting    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    If these items are installed and configured correctly  have the   computer serviced     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     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   mode      Touch the touchpad      Press any key on the keyboard      Press the power button      Press Fn   F2 to confirm whether the LCD screen has been turned  off     If you forget your user password  you must ask the system  administrator to reset your user password    If you forget your hard disk drive 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    If you forget 
15. lenovo     Lenovo IdeaPad  Y400 Y500    User Guide v1 0    ideapad    Note       Before using the product  be sure to read Lenovo Safety and General Information Guide first     Some instructions in this guide may assume that you are using Windows  8  If you are  using other Windows operating system  some operations may be slightly different  If  you are using other operating systems  some operations may not apply to you     The features described in this guide are common to most models  Some features may not  be available on your computer and or your computer may include features that are not  described in this user guide     The illustrations used in this manual are for Lenovo IdeaPad Y500 unless otherwise stated     The illustrations in this manual may differ from the actual product  In this case  refer to  the actual product     Regulatory Notice    To refer to it  go to http    support lenovo com and click User guides and manuals        First Edition  July 2012      Copyright Lenovo 2012     LIMITED AND RESTRICTED RIGHTS NOTICE  If data or software is delivered pursuant a General  Services Administration  GSA  contract  use  reproduction  or disclosure is subject to restrictions set  forth in Contract No  GS 35F 05925     Contents       Chapter 1  Getting to know your computer                      seeeeeeeeseeee eene nnn nnns nnn natns tnn sa tn assassins nna 1  Top view  Left side view    mete ete nt cette tetto e i ede tet ie acere 7  RightSide View   cic eem Ri i o Ete
16. n 10  Front VIG Wee utc sop teer DEUM cR cec Pi ct des OD PUT eme A 13  BOttOB view echec e he dedero eere p e ba pe i mb c eel da deci teu 15   Chapter 2  Starting to use Windows 8                      eeseeseseeeeeeeeeee eene nnne nnn annes anna natns sinas ates asina anna 17  Configuring the operating system for the first time          c cccccescsseeseseesesseeteseesesseseeseseesseseseeseaneseeseanenes 17    Operating system interfaces  puse D       Putting the computer to sleep or shutting it down    20  Connecting to wireless LAN             ssssssssssiseeeeeeneneneneettettene netten treten tenete nennen 22  Help and Support      sce rete cesse eere Veteres ete ee vie ie n dde nee ee ed 23  Chapter 3  Lenovo OneKey Recovery system                       eeesssseseeeeeees esee een antenne nn inn nane asia sane 24  Chapter 4  Troubleshooting                         eeeeeeieeeeeeeeeeee sense ene nennen sane nnnm sata asina anta s sinas snas atras sana dna 25  Frequently asked questions                  sisse eterne netten nette nnn ne nennen tenentes 25  Troubleshooting    25e uec etin eg ord et aaa Ta ted pasa ess erstes M ee ede Eb ano 27  Appendix  CRU instructions                      eeeseesseeeeeeee eene ee ene ennnnnnsntn natn na sinas inna atn assassin antiena sata nana 31  Replacing  the  battery  hei ie giro b de eti tei eme ee eth cot Rec eee da ee Red 31  Replacing the removable module                     sees nennen 32  Trademarks                                
17. nal heat     Note  Make sure that none of the ventilation slots are blocked or else overheating of the computer may    occur   VGA port Connects to external display devices   RJ 45 port Connects the computer to an Ethernet network   HDMI port Connects to devices with HDMI input such as a TV or a display   USB port Connects to USB devices     Note   e The blue port supports USB 3 0     Chapter 1  Getting to know your computer    m Connecting USB devices    You can connect a USB device to your computer by inserting its USB plug  Type A  into the USB  port on your computer                 A O O EI       The first time you plug a USB device into a particular USB port on your computer  Windows  automatically installs a driver for that device  After the driver is installed  you can disconnect  and reconnect the device without performing any additional steps     Note  Typically  Windows detects a new device after connecting it  and then installs the driver  automatically  However  some devices may require you to install the driver before connecting   Check the documentation provided by the device s manufacturer before connecting the device     Before disconnecting a USB storage device  make sure your computer has finished transferring  data by that device  Click the Safely Remove Hardware and Eject Media icon in the notification  area of Windows to remove the device before disconnecting     Note      If your USB device uses a power cord  connect the device to a power source before c
18. omputer  including the warranty period and type of  warranty service  see the Lenovo limited warranty flyer that came with your computer     m Drivers and preinstalled software    Where are the installation discs for Lenovo preinstalled software  desktop software    Your computer did not come with installation discs for Lenovo preinstalled software  If you  need to reinstall preinstalled software  you can find the installation program on the D  partition of your hard disk  If you cannot find the installation program there  download it  from Lenovo consumer support Website     Where can I find drivers for the various hardware devices of my computer   If your computer is preinstalled with a Windows operating system  Lenovo provides drivers  for the hardware devices that you need on the D partition of your hard disk  You can also  download the latest device drivers from Lenovo consumer support Website     m Lenovo OneKey Recovery system    Where are the recovery discs   Your computer did not come with recovery discs  Use Lenovo OneKey Recovery system if  you need to restore system to the factory status     What can I do if the backup process fails   If you can start backup but it fails during the backup process  try the following steps   O Close all open programs  then restart the backup process       Check if the destination media is damaged  Select another path and then try again     25    Chapter 4  Troubleshooting    When do I need to restore the system to the factory status
19. onnecting it   Otherwise  the device may not be recognized      When in sleep mode  you can only use keyboard instead of mouse to wake up the computer     B Connecting a Bluetooth device    If your computer has an integrated Bluetooth adapter card  it can connect to and transfer data  wirelessly to other Bluetooth enabled devices  such as notebook computers  PDAs and cell  phones  You can transfer data between these devices up to 10 meters range in open space     Note  The actual maximum range may vary due to interference and transmission barriers  For best  transfer speed  place the device as near your computer as possible     Chapter 1  Getting to know your computer    Enabling Bluetooth and WLAN communications on your computer    Press Fn   to make configuration     Note      When you do not need to use the Bluetooth function  turn it off to save battery power      You need to pair the Bluetooth enabled device with your computer before you can transfer data between  them  Read the documentation supplied with the Bluetooth enabled device for details on how to pair the  device with your computer     Chapter 1  Getting to know your computer    8 Right side view    m Y400                   e                           aw ae            o  Of                            me      co  i                                  amp         rT             Gr       Q    i                                              ES             Q    ON                            me      i i    C             
20. or details on installing the security lock   please refer to the instructions shipped with the  security lock that you have purchased     Note     Before purchasing any security product  verify that it is compatible with this type of security  keyhole    You are responsible for evaluating  selecting  and implementing the locking devices and security  features  Lenovo offers no comment judgment or warranty regarding the function  quality or  performance of locking devices and security features     Chapter 1  Getting to know your computer    8 Front view    m Y400        ob om oN o                        W Y500  ob of oN oA Of  TE    E  System status Power indicator  b  indicators                                              Battery status indicator  Touchpad indicator  Sg  Caps lock indicator Ay  Num lock indicator  y    El Memory card slot Insert memory cards  not supplied  here     13    Chapter 1  Getting to know your computer    14    Using memory cards  not supplied     Your computer supports the following types of memory cards     Secure Digital  SD  card     Secure Digital PRO  SD PRO  card     MultiMediaCard  MMC      Memory Stick  MS      Memory Stick PRO  MS PRO      xD Picture  xD  card    Note      Insert only one card in the slot at a time      This card reader does not support SDIO devices  e g   SDIO Bluetooth  etc     Inserting a memory card      Push the dummy card in until you hear a click  Then gently pull the dummy card out of the  memory card slot     Note
21. rom 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 Device Priority list    While powered off  press Novo button to select the device you want  the computer starts from     Do not connect or disconnect any external device cables other than  USB while the computer power is on  otherwise  you might damage  your computer    When using a high power consumption external device such as an  external USB optical disk drive  use external device power adapter   Otherwise  the device may not be recognized  or system shut down  may result     Appendix  CRU instructions    Note    e The illustrations used in this appendix are for the Lenovo IdeaPad Y500  unless otherwise stated   e The following steps about upgrading and replacing devices are the same for the Y400 and Y500     Make sure the battery has been removed before replacing any devices     8  Replacing the battery  Note  Use only the battery provided by Lenovo  Any other battery could ignite or explode     To replace the battery  do the following     Tum off the computer  Disconnect the AC adapter and all cables from the computer       Close the computer display  and turn the computer over   Unlock the manual battery latch Efl  Holding the spring loaded battery latch in the  y 8 pring y    unlocked position EJ  remove the battery pack in the direction shown by the arrow E                                    O Install a fully charged battery   Slid
22. to the Start screen     LB  Devices charm    The Devices charm allows you to connect or send files to any external devices  including digital  cameras  TVs  or printers      23 Settings charm    The Settings charm lets you perform basic tasks  such as setting the volume or shutting down  the computer  Also  you can get to the Control Panel through the Settings charm when on the  Desktop screen        19    Chapter 2  Starting to use Windows 8    20    Putting the computer to sleep or shutting it  down  When you have finished working with your computer  you can put it to sleep or shut it down     Putting your computer to sleep    If you will be away from your computer for only a short time  put the computer to sleep   When the computer is in sleep mode  you can quickly wake it to resume use  bypassing the  startup process    To put the computer to sleep  do one of the following      Close the display panel      Press the power button       Open the charms and then select Settings fey     Power     Sleep     Note  Wait until the power indicator light starts blinking  indicating that the computer is in sleep  mode  before you move your computer  Moving your computer while the hard disk is spinning  can damage the hard disk  causing loss of data     To wake the computer  do one of the following     Press the power button     Press any key on the keyboard     Chapter 2  Starting to use Windows 8    E Shutting down the computer    If you are not going to use your computer for a lon
23. ton  on a conventional mouse  which can be implemented by clicking this area   Right click area  The function corresponds to that of the right mouse  button on a conventional mouse  which can be implemented by clicking  this area     Note  You can enable disable the touchpad using Fn   B    Numeric keypad For details  see    Using the keyboard    on page 4    Y500     Chapter 1  Getting to know your computer    W Using the keyboard  Your computer has a numeric keypad and function keys incorporated in its standard keyboard   Numeric keypad  Y500    The keyboard has a separate numeric keypad  To enable or disable the numeric keypad  press  the Num Lock key                  JEJEJEJCJE JE JC 6    JCJC3C0309CJC C3E  LICET nao o CIC ene E  DOOU sisi   E DES   553 f  E JLOCOLOCOCOCOCDDOOL DL CIC   DVC Jugg                                                                                                                                                                                            4                         Chapter 1  Getting to know your computer    Function key combinations  Through the use of the function keys  you can change operational features instantly  To use this    function  press and hold Fn Ifi  then press one of the function keys El     Y400              I Jt Ie It Je Je Je I I                                                                                                                                                                                            
24. your administrator 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     27    Chapter 4  Troubleshooting    Sleep mode problems    The critical low battery error     message appears  and the  computer immediately turns off     The computer enters sleep mode    immediately after Power on self test   POST      The battery power is getting low  Connect the AC adapter to the  computer  or replace the battery with a fully charged one     Make sure that      The battery is charged      The operating temperature is within the acceptable range  See   Chapter 2  Use and care Information  of Lenovo Safety and General  Information Guide     Note  If the battery is charged and the temperature is within range  have the computer serviced     The computer does not return from     sleep mode and the computer does  not work        Display panel problems    The screen is blank      The screen is unreadable or    distorted     Incorrect characters appear on the    screen     Audio problems    28    No sound can be heard from the     speaker even when the volume is  turned up     If your computer is in sleep mode  connect the AC adapter to the  computer  then press any key or the power button    If the system still does not return from sleep mode  stops  responding  or you 
    
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