Lenovo G 560 Service Manual
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17 Important service information 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 copying, saving, or formatting. If you select an incorrect drive, data or programs 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.
18 Lenovo G560 Hardware Maintenance Manual Important information about replacing RoHS compliant FRUs R o H S , T h e R e s t r i c t i o n o f H a z a r d o u s S u b s t a n c e s i n E l e c t r i c a l a n d 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 compliant FRUs have unique FRU part numbers. Before or after the 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. Products marketed before June 2006Products marketed after June 2006 Current or original part Replacement FRU Current or original part Replacement FRU Non-RoHSCan be Non-RoHS Must be RoHSMust be RoHSNon-RoHSCan be RoHS Non-RoHSCan sub to RoHS RoHSMust be RoHS 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.
19 General checkout General checkout 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: 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 that have nothing to do with a hardware defect, such as cosmic radiation, 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.
20 Lenovo G560 Hardware Maintenance Manual What to do first 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: D u r i n g t h e w a r r a n t y p e r i o d , t h e c u s t o m e r m a y b e 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 w a r r a n t y a n d s o m e s y m p t o m s t h a t m i g h t i n d i c a t e t h a t t h e s y s t e m w a s 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 • disc 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.
21 General checkout Power system checkout 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 22 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 • “ C h e c k i n g 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: 2 1 Voltage (V DC) +200 Pin 1 2 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 continues, go to • “Lenovo G560” on page 27. Note: Noise from the AC adapter does not always indicate a defect. Checking operational charging 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.
22 Lenovo G560 Hardware Maintenance Manual 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: 1(+)2(+)3456(-)7(-) Terminal 1 +0 to +14 7 Ground (-) V oltage (V DC) 3. I f t h e v o l t a g e i s l e s s t h a n + 11 . 0 V D C , t h e b a t t e r y p a c k h a s b e e n 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.
23 Related service information Related service information This chapter presents the following information: • “Restoring the factory contents by using OneKey Recovery” on page 23 • “Passwords” on page 24 • “Power management” on page 25 Restoring the factory contents by using OneKey Recovery Restore of factory default The Lenovo G560 computers come with pre-installed OneKey Rescue System.In order to save application files and the initial backed up files of the system, the hard disk in a Lenovo computer includes a hidden partition when it is shipped. If you need to restore the system to the point of your first boot up, just enter Lenovo OneKey Rescue System and run Restore to factory default. For details of OneKey Rescue System, see the User Guide for OneKey Rescue System. Note: This will delete all the new data on the system partition (C drive), which is not recoverable. Make sure to back up your critical data before you perform this action. Using recovery discs When you replace a hard disk drive in your computer, you are unable to use the pre-installed Lenovo OneKey Recovery and OneKey Rescue. However, you can use the recovery discs that store your backed up data to restore your new hard drive to a previous backup status. Note: You can create recovery discs by burning the backup image to a CD/DVD as recovery discs. For details of Create recovery discs, see the User Guide for OneKey Rescue System .
24 Lenovo G560 Hardware Maintenance Manual When you use the recovery discs to boot your computer, the system will enter the user interface for system recovery automatically. Please follow the prompt to insert the backup discs to complete the whole recovery process. Note: The recovery process might take up to 2 hours. Passwords As many as two passwords may be needed for any Lenovo computer: the power-on password (POP) 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. 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.
25 Related service information Power management 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. Sleep (standby) mode When the computer enters sleep (standby) mode, the following events occur in addition to what occurs in screen blank mode: The LCD is powered off.• The hard disk drive is powered off.• The CPU stops.• To enter sleep (standby) mode, press Fn+F1. In certain circumstances, the computer goes into sleep (standby) mode automatically: If a “suspend time” has been set on the timer, and the user does not do any • operation with the keyboard, the hard disk, the parallel connector, or the diskette drive within that time. If the battery indicator is amber, indicating that the battery power is low. • (Alternatively, if Hibernate when battery becomes low has been selected in the “Power Management Properties” window, the computer goes into hibernation mode.) To cause the computer to return from sleep (standby) mode and resume the operation, do one of the following: Press the Fn key.• Open the lid.• Turn on the power switch.• Also, in the following event, the computer automatically returns from sleep (standby) mode and resumes the operation: The time set on the resume timer elapses.• Note: The computer does not accept any input immediately after it enters sleep (standby) mode. Wait a few seconds before taking any action to reenter operation mode.
26 Lenovo G560 Hardware Maintenance Manual Hibernation mode In hibernation mode, the following occurs: The system status, RAM, VRAM, and setup data are stored on the hard disk.• The system is powered off.• To cause the computer to enter hibernation mode, follow the steps below: If you are using the ACPI operating system and have defined one of the • following actions as the event that causes the system to go into hibernation mode, perform that action: – Closing the lid. – Pressing the power button. Also, the computer goes into hibernation mode automatically in either of the following conditions: If a “hibernation time” has been set on the timer, and if the user does not do • any operation with the keyboard, the hard disk drive, the parallel connector, or the diskette drive within that time. If the timer conditions are satisfied in suspend mode.• When the power is turned on, the computer returns from hibernation mode and resumes operation. The hibernation file in the boot record on the hard disk drive is read, and system status is restored from the hard disk drive.