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Lenovo G500 Manual

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    							Important service information
    17
    Use the following strategy to prevent unnecessary expense for replacing and 
    servicing FRUs:
     If you are instructed to replace an FRU, but the replacement does not solve 
    the problem, reinstall the original FRU before you continue.
     Some computers have both a processor board and a system board. If you are 
    instructed to replace either of them, and replacing one of them does not solve 
    the problem, reinstall that board, and then replace the other one.
     If an adapter or a device consists of more than one FRU, any of the FRUs may 
    be the cause of the error. Before replacing the adapter or device, remove the 
    FRUs one by one to see if the symptoms change. Replace only the FRU that 
    changed the symptoms.
    Attention: The setup configuration on the computer you are servicing may have 
    been customized. Running Automatic Configuration may alter the settings. Note 
    the current configuration settings (using the View Configuration option); then, 
    when service has been completed, verify that those settings remain in effect.
    Strategy for replacing a hard disk drive
    Always try to run a low-level format before replacing a hard disk drive. This will 
    cause all customer data on the hard disk to be lost. Make sure that the customer 
    has a current backup of the data before performing this action.
    Attention:  The drive startup sequence in the computer you are servicing may 
    have been changed. Be extremely careful during write operations such as 
    cop ying, s avi ng, or form att ing. If you s elect an i ncorrect drive, data  or p rograms  
    can be overwritten.
    Important notice for replacing a system board
    Some components mounted on a system board are very sensitive. Improper 
    handling can cause damage to those components, and may cause a system 
    malfunction.
    Attention: When handling a system board:
     Do not drop the system board or apply any excessive force to it.
     Avoid rough handling of any kind.
     Avoid bending the system board and hard pushing to prevent cracking at 
    each BGA (Ball Grid Array) chipset. 
    						
    							Lenovo G400/G500/G405/G505/G410/G510 Hardware Maintenance 
    Manual
    18
    RoHS, The Restriction of Hazardous Substances in Electrical and 
    Electronic Equipment Directive (2002/95/EC) is a European Union legal 
    requirement affecting the global electronics industry. RoHS requirements 
    must be implemented on Lenovo products placed on the market after June 
    2006. Products on the market before June 2006 are not required to have 
    RoHS compliant parts. If the original FRU parts are non-compliant, 
    replacement parts can also be non-compliant. In all cases if the original 
    FRU parts are RoHS compliant, the replacement part must also be RoHS 
    compliant.
    Note: RoHS and non-RoHS FRU part numbers with the same fit and function are 
    identified with unique FRU part numbers.
    Lenovo plans to transit to RoHS compliance well before the implementation date 
    and expects its suppliers to be ready to support Lenovo’s requirements and 
    schedule in the EU. Products sold in 2005 and 2006 will contain some RoHS 
    compliant FRUs. The following statement pertains to these products and any 
    product Lenovo produces containing RoHS compliant FRUs.
    RoHS comp lian t FRU s h ave u niqu e FRU  p art  nu mbers. Before or a ft er t he RoHS 
    implementation date, failed RoHS compliant parts must always be replaced with 
    RoHS compliant ones, so only the FRUs identified as compliant in the system 
    HMM or direct substitutions for those FRUs may be used.
    Note: A direct substitution is a part with a different FRU part number that is 
    automatically shipped by the distribution center at the time of the order.
    Products marketed before June 2006Products marketed after June 2006
    Current or 
    original partReplacement 
    FRUCurrent or 
    original partReplacement 
    FRU
    Non-RoHSCan be Non-RoHS
    Must be RoHSMust be RoHSNon-RoHSCan be RoHS
    Non-RoHSCan sub to RoHS
    RoHSMust be RoHS
    Important information about replacing RoHS compliant FRUs 
    						
    							General checkout
    19
    This chapter presents the following information:
     “What to do first” on page 20
     “Power system checkout” on page 21
    Before you go to the checkout, make sure to read the following important notes:
    General checkout
    Important notes:
    •Only certified trained personnel can service the computer.
    Before replacing any FRU, read the entire page on removing and 
    replacing FRUs.
    When you replace FRUs, use new nylon-coated screws.
    Be extremely careful during such write operations as copying, 
    saving, or formatting. Drives in the computer that you are servicing 
    sequence might have been altered. If you select an incorrect drive, data 
    or programs might be overwritten.
    Replace an FRU only with another FRU of the correct model. When 
    you replace an FRU, make sure that the machine model and the FRU part 
    number are correct by referring to the FRU parts list. 
    An FRU should not be replaced just because of a single, 
    unreproducible failure. Single failures can occur for a variety of reasons 
    t hat  have n oth ing to do  with  a hardware defect , s u ch  as cos mic ra diat ion, 
    electrostatic discharge, or software errors. Consider replacing an FRU 
    only when a problem recurs. If you suspect that an FRU is defective, 
    clear the error logs and run the test again. If the error does not recur, do 
    not replace the FRU.
    Be careful not to replace a nondefective FRU. 
    						
    							Lenovo G400/G500/G405/G505/G410/G510 Hardware Maintenance 
    Manual
    20
    When you do return an FRU, you must include the following information in the 
    parts exchange form or parts return form that you attach to it:
    1. Name and phone number of servicer
    2. Date of service
    3. Date on which the machine failed
    4. Date of purchase
    5. Procedure index and page number in which the failing FRU was detected
    6. Failing FRU name and part number
    7. Machine type, model number, and serial number
    8. Customer’s name and address
    Note for warranty: During the warranty period, the customer may be 
    responsible for repair costs if the computer damage was caused by misuse, 
    accident, modification, unsuitable physical or operating environment, or 
    improper maintenance by the customer.
    The following is a list of some common items that are not covered under 
    warranty and some symptoms that might indicate that the system was subjected 
    to stress beyond normal use.
    Before checking problems with the computer, determine whether the damage is 
    covered under the warranty by referring to the following list:
    The following are not covered under warranty:
     LCD panel cracked from the application of excessive force or from being 
    dropped
     Scratched (cosmetic) parts
     Distortion, deformation, or discoloration of the cosmetic parts
     Plastic parts, latches, pins, or connectors that have been cracked or broken by 
    excessive force
     Damage caused by liquid spilled into the system
     Damage caused by the improper insertion of a PC Card or the installation of 
    an incompatible card
     Improper disk insertion or use of an optical drive
     Diskette drive damage caused by pressure on the diskette drive cover, foreign 
    material in the drive, or the insertion of a diskette with multiple labels
     Damaged or bent diskette eject button
     Fuses blown by attachment of a nonsupported device
     Forgotten computer password (making the computer unusable)
     Sticky keys caused by spilling a liquid onto the keyboard
     Use of an incorrect AC adapter on laptop products
    The following symptoms might indicate damage caused by nonwarranted 
    activities:
     Missing parts might be a symptom of unauthorized service or modification. 
     If the spindle of a hard disk drive becomes noisy, it may have been subjected 
    to excessive force, or dropped.
    What to do first 
    						
    							General checkout
    21
    To verify a symptom, follow the steps below:
    1. Turn off the computer.
    2. Remove the battery pack.
    3. Connect the AC adapter.
    4. Make sure that power is supplied when you turn on the computer.
    5. Turn off the computer.
    6. Disconnect the AC adapter and install the charged battery pack.
    7. Make sure that the battery pack supplies power when you turn on the 
    computer.
    If you suspect a power problem, see the appropriate one of the following power 
    supply checkouts:
     “Checking the AC adapter” on page 21
     “Checking operational charging” on page 21
     “Checking the battery pack” on page 23
    Checking the AC adapter
    You are here because the computer fails only when the AC adapter is used.
     If the power-on indicator does not turn on, check the power cord of the AC 
    adapter for correct continuity and installation.
     If the computer does not charge during operation, go to “Checking 
    operational charging”.
    To check the AC adapter, follow the steps below:
    1. Unplug the AC adapter cable from the computer.
    2. Measure the output voltage at the plug of the AC adapter cable. See the 
    following figure:
    Note: Output voltage for the AC adapter pin No. 2 may differ from the one you 
    are servicing.
    3. If the voltage is not correct, replace the AC adapter.
    4. If the voltage is acceptable, do the following:
     Replace the system board.
     If the problem persists, go to “Lenovo G400/G500/G405/G505/G410/G510” 
    on page 28.
    Note: Noise from the AC adapter does not always indicate a defect.
    Checking operational charging
    Power system checkout
    Voltage (V DC)
    +20
    0 Pin
    1
    2
    21 
    						
    							Lenovo G400/G500/G405/G505/G410/G510 Hardware Maintenance 
    Manual
    22
    To check whether the battery charges properly during operation, use a 
    discharged battery pack or a battery pack that has less than 50% of the total 
    power remaining when installed in the computer. 
    						
    							General checkout
    23
    Perform operational charging. If the battery status indicator or icon does not 
    light on, remove the battery pack and let it return to room temperature. Reinstall 
    the battery pack. If the charge indicator or icon is still off, replace the battery 
    pack.
    If the charge indicator still does not light on, replace the system board. Then 
    reinstall the battery pack. If it is still not charged, go to the next section.
    Checking the battery pack
    Battery charging does not start until the Power Meter shows that less than 95% 
    of the total power remains; under this condition the battery pack can charge to 
    100% of its capacity. This protects the battery pack from being overcharged or 
    from having a shortened life.
    To check your battery, move your cursor to the Power Meter icon in the icon tray 
    of the Windows
    ® taskbar and wait for a moment (but do not click it), and the 
    percentage of battery power remaining is displayed. To get detailed information 
    about the battery, double-click the Power Meter icon.
    Note: If the battery pack becomes hot, it may not be able to be charged. Remove 
    it from the computer and leave it at room temperature for a while. After it cools 
    down, reinstall and recharge it.
    To check the battery pack, follow the steps below:
    1. Turn off the computer.
    2. Remove the battery pack and measure the voltage between battery terminals 
    1 (+) and 7 (-). See the following figure:
    3. If the voltage is less than +11.0 V DC, the battery pack has been discharged.
    Note: Recharging will be continued for at least 3 hours, even though the 
    indicator does not light on.
    If the voltage is still less than +11.0 V DC after recharging, replace the battery.
    4. If the voltage is more than +11.0 V DC, measure the resistance between 
    battery terminals 5 and 7. The resistance must be 4 to 30 KΩ.
    If the resistance is not correct, replace the battery pack. If the resistance is 
    correct, replace the system board.
    1(+)2(+)3456(-)7(-)
    Terminal
    1 +0 to +14
    7 Ground (-)Voltage (V DC) 
    						
    							Lenovo G400/G500/G405/G505/G410/G510 Hardware Maintenance 
    Manual
    24
    This chapter presents the following information:
     “Restoring the factory contents by using Recovery Disc Set” on page 24
    
     “Power management” on page 26
    When the hard disk drive or solid state drive is replaced because of a failure, no 
    product recovery program is on the new drive. In this case, you must use the 
    Recovery Disc Set for the computer. Order the Recovery Disc Set and the drive at 
    the same time so that you can recover the new drive with the pre-installed 
    software when they arrive.
    The Recovery Disc Set consists of the following set of DVDs to restore the 
    computer to the original factory configuration.
    Start Recovery Disc (one disc)
    This disc is used to format the hard disk drive and initiate the recovery process.
    Operating System Recovery Disc (one or more discs)
    This disc restores the Microsoft Windows operating system.
    Applications and Drivers Recovery Disc (one or more discs)
    This disc restores the pre-installed applications and drivers on the computer.
    Supplemental Recovery Disc
    This disc contains additional content, such as software for specific models and 
    updates to the software that was preloaded on the computer. Not all recovery 
    disc sets come with a Supplemental Recovery Disc.
    To restore the computer to the original factory configuration using the recovery 
    disc set, do the following:
    1. Insert the bootable Start Recovery Disc into the optical drive.
    2. Start the computer. When the Lenovo logo comes up, immediately press F12; 
    on the boot sequence menu, select the optical drive as the first boot-up device. 
    The computer will boot from the Start Recovery Disc. Follow the on-screen 
    instructions  to begin the recovery process.
    3. Read the license. If you agree with the terms, select I accept these terms and 
    conditions and then click Next.
    4. Insert the Operating System Recovery Disc when prompted and click Yes to 
    begin the operating system recovery process.
    5. Insert the Applications and Drivers Recovery Disc when prompted and then 
    click OK to begin the applications and drivers recovery process.
    6. If you have a Supplemental Recovery Disc, insert it when prompted and click 
    Yes. If you do not have a Supplemental Recovery Disc, click No.
    Related service information
    Restoring the factory contents by using Recovery Disc Set 
    						
    							Related service information
    25
    7. When all of the data has been copied from the last disc in the set, remove the 
    disc and restart the computer.
    8. When the recovery process is complete, the Welcome to the Microsoft 
    Windows screen is displayed. Follow the instructions on the screen to 
    complete the Windows setup.
    As many as three passwords may be needed for any Lenovo computer: the 
    power-on password (POP), the hard disk password (HDP), and the supervisor 
    password (SVP).
    If any of these passwords has been set, a prompt for it appears on the screen 
    whenever the computer is turned on. The computer does not start until the 
    password is entered.
    Exception: If only an SVP is installed, the password prompt does not appear 
    when the operating system is booted.
    Power-on password
    A power-on password (POP) protects the system from being powered on by an 
    unauthorized person. The password must be entered before an operating system 
    can be booted.
    Hard-disk password
    There are two hard-disk passwords (HDPs):
    + User HDP - for the user
    + Master HDP - for the system administrator, who can use it to get access to the 
    hard disk drive even if the user has changed the user HDP
    Attention: If the user HDP has been forgotten, check whether a master HDP has 
    been set. If it has, it can be used for access to the hard disk drive. If no master 
    HDP is available, neither Lenovo nor Lenovo authorized service technicians 
    provide any services to reset either the user or the master HDP, or to recover data 
    from the hard disk drive. The hard disk drive can be replaced for a scheduled fee.
    Supervisor password
    A supervisor password (SVP) protects the system information stored in the BIOS 
    Setup Utility. The user must enter the SVP in order to get access to the BIOS 
    Setup Utility and change the system configuration.
    Attention: If the SVP has been forgotten and cannot be made available to the 
    servicer, there is no service procedure to reset the password. The system board 
    must be replaced for a scheduled fee.Note: The remainder of the recovery process is fully automated and no 
    action is required by you. The computer will restart into the Windows 
    desktop several times and you might experience periods when no activity is 
    apparent on the screen for several minutes at a time. This is normal.
    Passwords 
    						
    							Lenovo G400/G500/G405/G505/G410/G510 Hardware Maintenance 
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    26
    Note: Power management modes are not supported for APM operating system.
    To reduce power consumption, the computer has three power management 
    modes: screen blank, sleep (standby), and hibernation.
    Screen blank mode
    If the time set on the “Turn off monitor” timer in the operating system expires, 
    the LCD backlight turns off. You can also turn off the LCD backlight by pressing 
    Fn+F2.
    To end screen blank mode and resume normal operation, press any key.
    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  → 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.
     Press the power button.
    Power management 
    						
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