Lenovo Essential G500
Contents
1. blank have the computer serviced Restore backed up files to your Windows environment or the entire contents of your hard disk to its original factory contents using the Lenovo OneKey Recovery system 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 F9 5 to confirm whether the backlight for the LCD screen has been turned off 25 Chapter 4 Troubleshooting BIOS password problems forgot my password Sleep problems 26 The critical low battery error e message appears and the computer immediately turns off The computer enters sleep mode immediately after Power on self test POST If you forget your user password you must ask the system administrator to reset your user password If you forget 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 If you forget your administrator password a Lenovo authorized servicer cannot reset your password You must take your computer to a Lenovo a2. Failure to restore the system partition to its factory default 28 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 Other problems Your computer does not respond The computer does not start from a device you want The connected external device does not work Chapter 4 Troubleshooting 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 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 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 Make sure that the device is included in the Boot menu in the BIOS setup utility correctly While turned off press the Novo button to select the device you want the computer to start 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 opti
3. G505 G510 Activate the system request Chapter 1 Getting to know your computer 8 Left side view Ce OOOOOOOOCOCOCCO ecco zum EB 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 For details on installing the security lock please refer to the instructions shipped with the security lock that you have purchased Ventilation slots Dissipate internal heat Note Make sure that none of the ventilation slots are blocked or else overheating of the computer may occur AH VGA port Connects to external display devices Ej RJ 45 port Connects the computer to an Ethernet network H HDMI port Connects to devices with HDMI input such as a TV or a display 3 USB ports Connect to USB devices Notes Theblue port supports USB 3 0 For details see Connecting USB devices on page 8 Combo audio Connects to headsets jack Notes By default the combo audio jack does not support conventional microphones The recording function may not be supported if third party headphones or headsets are connected due to different industry standards Chapter 1 Getting to know your computer B Connecting USB devices You can connect a USB device to your computer by inserting its USB plug Type A into
4. Memory Central processing unit Mini PCI Express Card slot compartment cover a Loosen the screws that secure the compartment cover Kl b Remove the compartment cover EH 35 Appendix CRU instructions If two DDR3L SDRAMs are already installed in the memory slot remove one of them to make room for the new one by pressing out on the latches on both edges of the socket at the same time Be sure to save the old DDR3L SDRAM for future use Align the notch of the DDR3L SDRAM with the protrusion of the socket and gently insert the DDR3L SDRAM into the socket at a 30 45 angle Q Push the DDR3L SDRAM inward toward the socket until the latches on both edges of the socket are pushed into the closed position After aligning the attachment clips with their matching gaps reinstall the compartment cover Reinstall and tighten the screws Reinstall the battery Turn the computer over again Connect the AC adapter and the cables to the computer 36 Appendix CRU instructions Note If only one DDR3L SDRAM is used on the computer you are servicing the card must be installed in SLOT 0 EM lower slot but not in SLOT 1 qu upper slot To make sure that the DDR3L SDRAM is installed correctly do as follows Turn the computer on Hold Fn F2 during startup The BIOS setup uti
5. The dashed areas indicate parts that are invisible from outside Attention Do not open the display panel beyond 130 degrees When closing the display panel be careful rot to leave pens or any other objects in between the display panel and the keyboard Otherwise the display panel may be damaged Ed Integrated camera Wireless antennas Computer display Speakers Power button Novo button Notes Chapter 1 Getting to know your computer Use the camera for video communication Connect to the wireless adapter to receive and send wireless radio Provides brilliant visual output Provide audio output Press this button to turn on the computer When the computer is off or in hibernation mode press this button to start the Lenovo OneKey Recovery system or the BIOS setup utility or to enter the boot menu For details see Chapter 3 Lenovo OneKey Recovery system on page 21 If your computer is preinstalled with a Linpus operating system Onekey Recovery system is not available Built in microphone Touchpad Captures sound which can be used for video conferencing voice narration or audio recording The touchpad functions as a conventional mouse Touchpad To move the cursor on the screen slide your fingertip over the pad in the direction in which you want the cursor to move Touchpad buttons The functions of the left right side correspond to that of the left right mouse button on a convent
6. the USB port on your computer A E Pow o a RAT 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 the Windows desktop screen to remove the device before disconnecting Notes e If your USB device uses a power cord connect the device to a power source before connecting 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 Chapter 1 Getting to know your computer B Connecting a Bluetooth device If your computer has an integrated Bluetooth adapter card it can connect to and transfer data wirelessly to from 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 N
7. 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 Shut down the computer Press the Novo button From Novo Button Menu select System recovery and press Enter 21 Chapter 4 Troubleshooting s 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 computer including the warranty period and type of warranty service see the Lenovo limited warranty flyer that came with your computer B 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
8. cal disk drive use an external device power adapter Otherwise the device may not be recognized or system shut down may result 29 Appendix CRU instructions 30 Notes The illustrations used in this appendix are for the Lenovo G400 unless otherwise stated Thefollowing steps about upgrading and replacing devices are the same for the G400 and G500 G405 G505 G410 G510 Make sure the battery has been removed before replacing any devices 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 Q Turn 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 Eg Hold the spring loaded battery latch in the unlocked position EJ remove the battery pack in the direction shown by the arrow J Install a fully charged battery Q Slide the manual battery latch to the locked position Turn the computer over again Connect the AC adapter and the cables to the computer Appendix CRU instructions s Replacing the hard disk drive You can increase the storage capacity of your computer by replacing the hard disk drive with one of greater capacity You can purchase a new hard disk drive from your reseller or Lenovo marketing representative Notes Replace the hard dis
9. efault to store the system image file and the OneKey Recovery system er files This default partition is hidden for security reasons which explains why the available disk space is less than the stated capacity W 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 Select a back up location and click Next to start the backup Notes You can choose a back up location on the local hard disk drive or an external storage device The back up process may take a while The back up process is only available when Windows can be started normally m 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 Click System Recovery The computer will restart to the recovery environment Q Follow the on screen instructions to restore the system partition to its original status or to a previously created back up point Notes 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 The above instructions should
10. er There is a problem with the battery or the battery connection Slow blinking amber The battery is being charged When battery charge reaches 20 the blinking color changes to white Slow blinking white The battery has between 20 and 80 charge and is still charging When the battery reaches 8076 charge the light will stop blinking but charging will continue until the battery is fully charged H Memory card slot Insert memory cards not supplied here Note For details see Using memory cards not supplied on page 12 11 Chapter 1 Getting to know your computer 12 Using memory cards not supplied Your computer supports the following types of memory card Secure Digital SD card MultiMediaCard MMC Notes 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 Gently pull the dummy card out of the memory card slot Note 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 Q Slide the memory card in until it clicks into place Removing a memory card Q 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
11. he charms Charms are navigation buttons that let you control your Windows 8 experience Charms include Search Share Start Devices and Settings The Charms Bar is the menu that contains 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 e 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 HR 2 NM NS NN Fo 4 m 15 Chapter 2 Starting to use Windows 8 16 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 to the Start screen Fay Devices charm The Devices charm allows you to connect or send files to any external devices including digital cameras TVs or printers fex 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 Chapter 2 Starting to use Windows 8 Putting the computer to sleep or shutting it down When you have finished working with your c
12. he desktop or the currently active window Enables disables the touchpad EJ EJX T5 select this notebook or an E EJ Enables disables Airplane mode Displays all currently active apps Turns on off the backlight of the LCD screen Opens the interface for the display device switch to external display Decreases display brightness Increases display brightness 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 Ki then press one of the function keys H G400 G405 G410 C63 36 363 363 a a ca es OUVUUVUUUVUUVUUVUUUVU UL I ZUOOJOQOOUL CIUC JE UVUVVVUUUVUULUY S E O E 00055 G500 G505 G510 rc 05000500007 Ot Isic LC JL COLL LOL LLL T JU z ERINA sunm aman The following describes the features of each function key ical U elo i zoll Fn Home Activate the pause function Fn End Activate the break function Fn PgUp Enable Disable the scroll lock Fn PgDn G400 G405 G410 Activate the insert function Fn PgDn G500
13. ional mouse Note You can enable disable the touchpad by pressing s Numeric keypad G500 G505 G510 For details see Using the keyboard on page 4 Chapter 1 Getting to know your computer B Using the keyboard Your computer has number keys and function keys and may also have a numeric keypad G500 G505 G510 only incorporated into its standard key board Numeric keypad G500 G505 G510 The keyboard has a separate numeric keypad To enable or disable the numeric keypad press the Num Lock key adp rear Set ns z CHL E LOCOCOCOCOCOCOLDDO CJUO DL J C JLOCUCOLOLOLUCOULOLOLOL UL L JOCOOLGOCOUDGOCDOD CD UDLC J L JLOLOCUCOCOC OCC UCOCOC JULI I Enter m Keyb Chapter 1 Getting to know your computer oard function keys You can access certain system settings quickly by pressing the appropriate functi on keys I JC JC JIC JIC Je Jt SJE JIE JS Jt JES IU UUUUDLUUUU QOU QOU LLL LOCA OULU UUV L JUUUUUUUUUU UL LUUL U JUUL 1 jp Mutes unmutes the sound Decreases the volume level Increases the volume level Closes the currently active window Refreshes t
14. k drive only if you upgrade it or have it repaired The connectors and bay of the hard disk drive were not designed for frequent changes or drive swapping The preinstalled software is not included on an optional hard disk drive Handling a hard disk drive Donotdrop the drive or subject it to physical shocks Put the drive on a material such as soft cloth that absorbs the physical shock Donotapply pressure to the cover of the drive Do not touch the connector The hard disk drive is very sensitive Incorrect handling may cause damage and permanent loss of data on it Before removing the hard disk drive make a backup copy of all the information on it and then turn the computer off Never remove the drive while the system is operating in sleep mode 31 Appendix CRU instructions 32 To replace the hard disk drive do the following Turn off the computer then disconnect the AC adapter and all cables from the computer Close the computer display and then turn the computer over Remove the battery pack Remove the Hard disk drive Memory Central processing unit Mini PCI Express Card slot compartment cover a Loosen the screws that secure the compartment cover Ell b Remove the compartment cover EJ Appendix CRU instructions Remove the frame fixing screws EJ 33 Appendix CRU instructions 34 Take out the hard disk drive secured in a metal frame H Remove the screw
15. lenovo Lenovo G400 G500 G405 G505 G410 G510 User Guide included manuals before using your computer Notes 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 systems 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 G400 unless otherwise stated The illustrations in this manual may differ from the actual product Please refer to the actual product Regulatory Notice For details refer to Guides amp Manuals at http support lenovo com First Edition March 2013 Copyright Lenovo 2013 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 eene 1 DOP VACW d EAT 1 Leftside VIeW xv quee tee nere EI eee EIA see nee ere ede eret Cen e EP ELS 7 Right side VIeW i5 teer tte RI
16. lity screen opens The System Memory item shows the total amount of memory installed in your computer 37 Appendix CRU instructions 38 Removing the optical drive To remove the optical drive do the following Remove the Hard disk drive Memory Central processing unit Mini PCI Express Card slot compartment cover Remove the screw shown in the illustration Efl Gently pull the optical drive out H Appendix CRU instructions 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 pack O O Hard disk drive O Memory O Optical drive O 39 Trademarks 40 The following terms are trademarks or registered trademarks of Lenovo in the United States other countries or both Lenovo 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 lenovo en US Rev AAOO 102 BUIUD o oue o
17. omputer you can put it to sleep or shut it down m 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 P ress the power button Open the charms and then select Settings E 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 any key on the keyboard Note If the computer does not awaken after pressing a key on the keyboard this means that the computer has entered an enhanced power saving mode l ress the power button 17 Chapter 2 Starting to use Windows 8 BH Shutting down the computer If you are not going to use your computer for a long time shut it down To shut down your computer Open the charms select Settings G 18 Chapter 2 Starting to use Windows 8 Connecting to a wireless network Enabling wireless connection To enable wireless functions do one of the following Press to disable airplane mode Open the charms and select Settings fee gt g to open the network configu
18. on av 10 Front YIeW ete ente eet bete i Reine d ette ee e Dentes tense eee Po Bogen don lanae dg 11 BOUHODY VIEW uud tct na an 13 Chapter 2 Starting to use Windows 8 eene 14 Configuring the operating system for the first time sess 14 Operating system interfaces yiosi eona aarne iR a EEE EE EASKE eSEE iTia 14 The CIALIS amenuna ea n RERO in EH aes 15 Putting the computer to sleep or shutting it down sss 17 Connecting to a wireless network sess 19 Help arid suppotrt acetate eedem N AN 20 Chapter 3 Lenovo OneKey Recovery system 21 Chapter 4 Troubleshooting eere 22 Frequently asked questions sss eene nennen 22 Troubleshoottig creen ere e eh ier s 25 Appendix CRU instructions rroronnnnnnnnnnn nn nn enne 30 Replacing the battery eerte od tee ge artes 30 Replacing the hard disk drive sss 31 Replacing MEMO odiosum lohan nian e ee Aiea ide 35 Removing the optical drive tette eie aaae 38 Llc ntl coc RM 40 Chapter 1 Getting to know your computer Top view m G400 G405 G410 ms an an an an am am a an COOOOOOOOOOOOCUO C JOJDJOJO JD JO JO JD JD DO DUO C JOODOCGDOCGOOUOUDOLC JU Ee G9 I3 E 59 69 89 F9 E 9 9 89 9 o steblo Chapter 1 Getting to know your computer W G500 G505 G510 Note
19. ote 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 Enabling Bluetooth and WLAN communications on your computer Press to make configuration Notes 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 s Right side view El Optical disc drive Reads Burns optical discs Note Some models are supplied with a dummy optical disc drive H USB port Connects to USB devices Note For details see Connecting USB devices on page 8 Ej AC poweradapter Connects the AC adapter jack 10 8 Front view Chapter 1 Getting to know your computer System status Power indicator b indicators Battery status indicator Caps lock indicator A Symbol Indicator status Meaning On solid white The computer is powered on b Blinking The computer is in sleep mode Off The computer is powered off On solid white The battery has more than 20 charge Solid amber The battery has between 5 and 20 charge Fast blinking amb
20. ration 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 reguire 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 19 Chapter 2 Starting to use Windows 8 20 Help and support If you have a problem with 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 Fn 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 Chapter 3 Lenovo OneKey Recovery system 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 d
21. s and detach the metal frame from the hard disk drive Attach the metal frame to a new hard disk drive and tighten the screws 9 Put the hard disk drive gently into the hard disk drive bay with the tab facing upwards and the connectors facing each other then push it firmly into space Reinstall the frame fixing screw Reinstall the compartment cover and tighten the screws Reinstall the battery pack Turn the computer over again Connect the AC adapter and the cables to the computer Appendix CRU instructions e Replacing memory You can increase the amount of memory in your computer by installing a double data rate three low voltage synchronous dynamic random access memory DDR3L SDRAM available as an option in the memory slot of your computer DDR3L SDRAMs are available in various capacities Note Use only the memory types supported by your computer If you incorrectly install optional memory or install an unsupported memory type a warning beep will sound when you try to start the computer To install a DDR3L SDRAM do the following Touch a metal table or a grounded metal object to reduce any static electricity in your body which could damage the DDR3L SDRAM Do not touch the contact edge of the DDR3L SDRAM Turn off the computer Disconnect the AC adapter and all cables from the computer Close the computer display and turn the computer over Remove the battery again Remove the Hard disk drive
22. ter Q Press the Novo button and then select BIOS Setup How can I change the boot mode There are two boot modes UEFI and Legacy Support To change the boot mode start the BIOS setup utility and set boot mode to UEFI or Legacy support on the boot menu 23 Chapter 4 Troubleshooting When do I need to change the boot mode The default boot mode for your computer is UEFI mode If you need to install a legacy operating system such as Windows that is any operating system before Windows 8 Linux or Dos etc on your computer you must change the boot mode to Legacy support The legacy operating system such as Windows Linux or Dos etc cannot be installed if you don t change the boot mode E Getting help How can I contact the customer support center See Chapter 3 Getting help and service of Lenovo Safety and General Information Guide 24 s 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 is on 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 If these items are properly set and the screen remains
23. the Lenovo consumer support Web site 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 the Lenovo consumer support Web site 22 Chapter 4 Troubleshooting B Lenovo OneKey Recovery system Where are the recovery discs Your computer did not come with recovery discs Use the Lenovo OneKey Recovery system if you need to restore the system to its factory status What can I do if the back up process fails If you can start the backup but it fails during the back up process try the following steps Q Close all open programs and then restart the back up process Check to see if the destination media is damaged Select another path and then try again When do I need to restore the system to its factory status 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 the 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 Q Shut down the compu
24. through Safely Remove Hardware and Eject Media to avoid data corruption e Bottom view Battery latch manual Battery pack Battery latch spring loaded Louvers Chapter 1 Getting to know your computer The manual battery latch is used to keep the battery pack secured in place The spring loaded battery latch keeps the battery pack secured in place Allow air to enter the computer for cooling Chapter 2 Starting to use Windows 8 14 Configuring the operating system for the first time You may need to configure the operating system when it is first used The configuration process may include the procedures below Accepting the end user license agreement Configuring the Internet connection Registering the operating system Creating a user account 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 s D To switch from the desktop to the Start screen do one of the following Select Start E from the charms bar Move the cursor to the lower left corner and then select the Start screen thumbnail when it is displayed Start screen Desktop Chapter 2 Starting to use Windows 8 T
25. ton to resume from sleep mode If the problem persists follow the solution in the next problem The screen is unreadable or distorted Press F9 amp to confirm whether the backlight for 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 27 Chapter 4 Troubleshooting Sound problems No sound can be heard from the speaker even when the volume is turned up Battery problems Your computer shuts down before the battery status indicator shows empty Or Your computer operates after the battery status indi cator shows empty The computer does not operate with a fully charged battery A hard disk drive problem The hard disk drive does not work Make sure that The Mute function is off The combo audio jack is not used The speaker is selected as the playback device 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 Make sure that the hard disk drive is included in the Boot menu in the BIOS setup utility correctly OneKey Recovery system problems Backup cannot be made
26. uthorized 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 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 Chapter 4 Troubleshooting If your computer is in sleep mode connect the AC adapter to the computer and then press any key or the power button If the system still does not return from sleep mode stops responding or cannot be turned off 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 the battery and the battery status indicator is on press F12 to make the screen brighter If the power indicator is blinking press the power but
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