The product-specific section includes service, reference, and product-specific parts information. Important: This manual is intended only for trained servicers who are familiar with Lenovo products. Use this manual to troubleshoot problems effectively. Before servicing a Lenovo product, make sure to read all the information under...
Safety information Safety information This chapter presents the following safety information that you need to get familiar with before you service a Lenovo G470/G475/G570/G575 computer: • “General safety” on page 2 • “Electrical safety” on page 3 • “Safety inspection guide” on page 5 •...
Lenovo G470/G475/G570/G575 Hardware Maintenance Manual General safety Follow these rules below to ensure general safety: • Observe a good housekeeping in the area where the machines are put during and after the maintenance. • When lifting any heavy object: 1. Make sure that you can stand safely without slipping.
Safety information Electrical safety Observe the following rules when working on electrical equipments. Important: Use only approved tools and test equipments. Some hand tools have handles covered with a soft material that does not insulate you when working with live electrical currents.
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Lenovo G470/G475/G570/G575 Hardware Maintenance Manual • Always look carefully for possible hazards in your work area. Examples of these hazards are moist floors, nongrounded power extension cables, power surges, and missing safety grounds. • Do not touch live electrical circuits with the reflective surface of a plastic dental mirror.
4. Check for cracked or bulging batteries. 5. Remove the cover. 6. Check for any obvious non-Lenovo alterations. Use good judgment as to the safety of any non-Lenovo alterations. 7. Check inside the unit for any obvious unsafe conditions, such as metal filings, contamination, water or other liquids, or signs of fire or smoke damage.
Lenovo G470/G475/G570/G575 Hardware Maintenance Manual Handling devices that are sensitive to electrostatic discharge Any computer part containing transistors or integrated circuits (ICs) should be considered sensitive to electrostatic discharge (ESD). ESD damage can occur when there is a difference in charge between objects. Protect against ESD damage by equalizing the charge so that the machine, the part, the work mat, and the person handling the part are all at the same charge.
Safety information Safety notices: multilingual translations The safety notices in this section are provided in English, French, German, Hebrew, Italian, Japanese, and Spanish. Safety notice 1 Before the computer is powered on after FRU replacement, make sure all screws, springs, and other small parts are in place and are not left loose inside the computer.
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Lenovo G470/G475/G570/G575 Hardware Maintenance Manual Safety notice 2 DANGER Some standby batteries contain a small amount of nickel and cadmium. Do not disassemble a standby battery, recharge it, throw it into fire or water, or short- circuit it. Dispose of the battery as required by local ordinances or regulations.
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Safety information Safety notice 3 DANGER The battery pack contains small amounts of nickel. Do not disassemble it, throw it into fire or water, or short-circuit it. Dispose of the battery pack as required by local ordinances or regulations. Use only the battery in the appropriate parts listing when replacing the battery pack.
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Lenovo G470/G475/G570/G575 Hardware Maintenance Manual Safety notice 4 DANGER The lithium battery can cause a fire, an explosion, or a severe burn. Do not recharge it, remove its polarized connector, disassemble it, heat it above 100°C (212°F), incinerate it, or expose its cell contents to water. Dispose of the battery as required by local ordinances or regulations.
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Safety information Safety notice 5 If the LCD breaks and the fluid from inside the LCD gets into your eyes or on your hands, immediately wash the affected areas with water at least for 15 minutes. Seek medical care if any symptoms caused by the fluid are present after washing. Si le panneau d’affichage à...
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Lenovo G470/G475/G570/G575 Hardware Maintenance Manual Safety notice 6 DANGER To avoid shock, do not remove the plastic cover that protects the lower part of the inverter card. Afin d’éviter tout risque de choc électrique, ne retirez pas le cache en plastique protégeant la partie inférieure de la carte d’alimentation.
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Safety information Safety notice 8 DANGER Before removing any FRU, turn off the computer, unplug all power cords from electrical outlets, remove the battery pack, and then disconnect any interconnecting cables. Avant de retirer une unité remplaçable en clientèle, mettez le système hors tension, débranchez tous les cordons d’alimentation des socles de prise de courant, retirez la batterie et déconnectez tous les cordons d’interface.
Lenovo G470/G475/G570/G575 Hardware Maintenance Manual Laser compliance statement Some models of Lenovo computer are equipped from the factory with an optical storage device such as a CD-ROM drive or a DVD-ROM drive. Such devices are also sold separately as options. If one of these drives is installed, it is certified in the U.S.
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Safety information A CD-ROM drive, a DVD-ROM drive, or any other storage device installed may contain an embedded Class 3A or Class 3B laser diode. Note the following: DANGER Emits visible and invisible laser radiation when open. Do not stare into the beam, do not view directly with optical instruments, and avoid direct exposure to the beam.
To download software fixes, drivers, and BIOS, follow the steps below: 1. Go to http://consumersupport.lenovo.com/. 2. Enter a serial number or select a product or use Lenovo smart downloading. 3. Select the BIOS/Driver/Applications and download. 4. Follow the directions on the screen and install the necessary software.
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. •...
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.
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.
Lenovo G470/G475/G570/G575 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.
Replace the system board. • If the problem continues, go to “Lenovo G470/G475/G570/G575” 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.
Lenovo G470/G475/G570/G575 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.
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.
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.
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.
Lenovo G470/G475/G570/G575 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: •...
• “FRU replacement notices” on page 32 • “Removing and replacing an FRU” on page 33 • “Locations” on page 69 • “Parts list” on page 71 Specifications The following table lists the specifications of the Lenovo G470/G475/G570/ G575 : Table 1. Specifications Feature Description Processor •...
Lenovo G470/G475/G570/G575 Status indicators The system status indicators below show the computer status: Table 2. Status indicators Indicator Meaning Caps lock White: Caps Lock mode is enabled. You can enter all alphabetic characters (A-Z) in uppercase without pressing the Shift key. To enable or disable Caps Lock mode, press the CapsLk key.
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Lenovo G470/G475/G570/G575 Hardware Maintenance Manual Table 2. Status indicators (continued) Indicator Meaning Battery status Blinking amber (500ms off/1s on): The remaining power of the battery is less than 5% of its capacity. Blinking amber (100ms off/3.2s on): The battery is being charged with the remaining power between 5% and 20% of its capacity.
Stop playback of Windows Media Player. Fn + F11: Skip to the previous track. Fn + F12: Skip to the next track. Fn + Insert (G570/G575): Enable/Disable the scroll lock. Fn + PgUp (G470/G475): Fn + PrtSc: Activate the system request.
This section presents notices related to removing and replacing parts. Read this section carefully before replacing any FRU. Screw notices Loose screws can cause a reliability problem. In the Lenovo computer, this problem is addressed with special nylon-coated screws that have the following characteristics: •...
(ESD) strap (P/N 6405959) to remove potential shock reasons. Notes: • The illustrations used in this section are of the Lenovo G570, unless otherwise stated. • The following procedures about removing and replacing FRUs are the same...
Lenovo G470/G475/G570/G575 Hardware Maintenance Manual 1010 Battery pack DANGER Only use the battery specified in the parts list for your computer. Any other battery could ignite or explode. Figure 1. Removal steps of battery pack Unlock the battery release lever .
Lenovo G470/G475/G570/G575 1020 Dummy card For access, remove this FRU: • “1010 Battery pack” on page 34 Figure 2. Removal steps of dummy card Remove dummy card in the direction shown by arrows...
Lenovo G470/G475/G570/G575 Hardware Maintenance Manual 1030 Optical drive For access, remove these FRUs in order: • “1010 Battery pack” on page 34 Figure 3. Removal steps of optical drive Remove the screw shown in the illustration , and then gently pull the optical...
Lenovo G470/G475/G570/G575 1040 Hard disk drive (HDD)/Memory/CPU (Central processing unit)/Mini PCI ExpressCard slot compartment cover For access, remove this FRU: • “1010 Battery pack” on page 34 Figure 4. Removal steps of HDD/Memory/CPU/Mini PCI ExpressCard slot compartment cover Note: Loosen the screws , but do not remove them.
Lenovo G470/G475/G570/G575 Hardware Maintenance Manual 1050 Hard disk drive For access, remove these FRUs in order: • “1010 Battery pack” on page 34 • “1040 Hard disk drive (HDD)/Memory/CPU (Central processing unit)/Mini PCI ExpressCard slot compartment cover ” on page 37 Attention: • Do not drop the hard disk drive or apply any physical shock to it.
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Lenovo G470/G475/G570/G575 Step Screw (quantity) Color Torque M2.0 × 4 mm, flat-head, nylon-coated (2) Black 2.0kgfcm When installing: Make sure that the HDD connector is attached firmly.
Lenovo G470/G475/G570/G575 1070 Fan assembly and Heat Sink assembly For access, remove these FRUs in order: • “1010 Battery pack” on page 34 • “1040 Hard disk drive (HDD)/Memory/CPU (Central processing unit)/Mini PCI ExpressCard slot compartment cover ” on page 37 Figure 7.
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Lenovo G470/G475/G570/G575 Hardware Maintenance Manual Figure 7. Removal steps of fan assembly and heat sink assembly (continued) Lift the fan assembly and heat sink assembly in the direction shown by arrow Be careful not to damage the connector. Attention: Do not handle the heat sink assembly roughly. Improper handling...
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Lenovo G470/G475/G570/G575 Figure 7. Removal steps of fan assembly and heat sink assembly (continued) When installing: • Before you attach the fan assembly to the computer, apply thermal grease, at an amount of 0.2 grams, to the part shown in the figure above. Either too much or too less grease application can cause a thermal problem due to imperfect contact with a component.
Lenovo G470/G475/G570/G575 Hardware Maintenance Manual 1080 CPU For access, remove these FRUs in order: • “1010 Battery pack” on page 34 • “1040 Hard disk drive (HDD)/Memory/CPU (Central processing unit)/Mini PCI ExpressCard slot compartment cover ” on page 37 • “1070 Fan assembly and Heat Sink assembly” on page 41 Attention: CPU is extremely sensitive.
Lenovo G470/G475/G570/G575 1090 PCI Express Mini Card for wireless LAN For access, remove these FRUs in order: • “1010 Battery pack” on page 34 • “1040 Hard disk drive (HDD)/Memory/CPU (Central processing unit)/Mini PCI ExpressCard slot compartment cover ” on page 37 Figure 9.
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Lenovo G470/G475/G570/G575 Hardware Maintenance Manual Notes: wireless LAN card has 2 cables in step wireless LAN card in some models may have 3 cables in step Figure 9. Removal steps of PCI Express Mini Card for wireless LAN (continued) Remove the card in the direction shown by arrow When installing: •...
Lenovo G470/G475/G570/G575 1100 Keyboard For access, remove these FRUs in order: • “1010 Battery pack” on page 34 • “1040 Hard disk drive (HDD)/Memory/CPU (Central processing unit)/Mini PCI ExpressCard slot compartment cover ” on page 37 Figure 10. Removal steps of keyboard Remove the screws on the bottom.
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Lenovo G470/G475/G570/G575 Hardware Maintenance Manual Figure 10. Removal steps of keyboard (continued) Lift the keyboard a little , unlock the FPC connector and then detach the connector in the direction shown by arrows When installing: Make sure that the FPC connector is attached firmly and then...
Lenovo G470/G475/G570/G575 1110 Keyboard bezel For access, remove these FRUs in order: • “1010 Battery pack” on page 34 • “1030 Optical drive” on page 36 • “1040 Hard disk drive (HDD)/Memory/CPU (Central processing unit)/Mini PCI ExpressCard slot compartment cover ” on page 37 •...
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Lenovo G470/G475/G570/G575 Hardware Maintenance Manual Figure 11. Removal steps of keyboard bezel (continued) Remove one screw and detach three FPC connectors in the direction shown by arrows Step Screw (quantity) Color Torque M2.5 × 8 mm, flat-head, nylon-coated (1) Black 2.0kgfcm...
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Lenovo G470/G475/G570/G575 Figure 11. Removal steps of keyboard bezel (continued) Remove the keyboard bezel in the direction shown by arrows...
Lenovo G470/G475/G570/G575 1130 System board Important notices for handling the system board: When handling the system board, bear the following in mind. • Be careful not to drop the system board on a bench top that has a hard surface, such as metal, wood, or composite.
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Lenovo G470/G475/G570/G575 Hardware Maintenance Manual Figure 13. Removal steps of system board (continued) Remove five screws and detach a connector in the direction shown by arrow When installing: Make sure that the connector is attached firmly. Step Screw (quantity) Color Torque M2.5 ×...
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Lenovo G470/G475/G570/G575 Figure 13. Removal steps of system board (continued) Remove the system board in the direction shown by arrow When installing: When attaching the system board to the base cover, adjust the placement of the wireless radio switch as shown in...
Lenovo G470/G475/G570/G575 Hardware Maintenance Manual 1140 LCD unit For access, remove these FRUs in order: • “1010 Battery pack” on page 34 • “1020 Dummy card” on page 35 • “1030 Optical drive” on page 36 • “1040 Hard disk drive (HDD)/Memory/CPU (Central processing unit)/Mini PCI ExpressCard slot compartment cover ”...
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Lenovo G470/G475/G570/G575 Figure 14. Removal steps of LCD unit (continued) When installing: • Route the antenna cables along the cable guides. As you route the cables, make sure that they are not subjected to any tension. Tension could cause the cables to be damaged by the cable guides, or a wire to be broken.
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Lenovo G470/G475/G570/G575 Hardware Maintenance Manual Figure 14. Removal steps of LCD unit (continued) Remove the LCD unit in the direction shown by arrows...
Lenovo G470/G475/G570/G575 1150 Speakers, bluetooth daughter card and base cover For access, remove these FRUs in order: • “1010 Battery pack” on page 34 • “1020 Dummy card” on page 35 • “1030 Optical drive” on page 36 • “1040 Hard disk drive (HDD)/Memory/CPU (Central processing unit)/Mini PCI ExpressCard slot compartment cover ”...
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Lenovo G470/G475/G570/G575 Hardware Maintenance Manual Figure 15. Removal steps of bluetooth daughter card and base cover (continued) The Bluetooth daughter card is attached to the base cover. Remove the Bluetooth daughter card in the direction shown by arrows When installing: Make sure that the connector is attached firmly.
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Lenovo G470/G475/G570/G575 Figure 15. Removal steps of bluetooth daughter card and base cover (continued) Remove one screw and then remove the USB assembly in the direction shown by arrow When installing: Make sure that the USB connector is attached firmly.
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Lenovo G470/G475/G570/G575 Hardware Maintenance Manual Note: Applying labels to the base cover The illustrations used in this Note are of the Lenovo G470. The new base cover FRU is shipped with a kit containing labels of several kinds. When you replace the base cover, you need to apply the following...
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Lenovo G470/G475/G570/G575 For models in other countries or regions: Bluetooth label (for US/CA/TW/Indonesia) SIRIM Bluetooth label SIRIM WLAN label Bluetooth label (for Brazil) WLAN label (for Brazil/Israel) WLAN label (for US/CA/TW/Indonesia) Windows license label (COA) Rating label For the location of each label, refer to the following figure: a b c For some models, you also need to apply one or two FCC labels.
Lenovo G470/G475/G570/G575 1170 LCD panel and hinges For access, remove these FRUs in order: • “1010 Battery pack” on page 34 • “1020 Dummy card” on page 35 • “1030 Optical drive” on page 36 • “1040 Hard disk drive (HDD)/Memory/CPU (Central processing unit)/Mini PCI ExpressCard slot compartment cover ”...
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Lenovo G470/G475/G570/G575 Hardware Maintenance Manual Figure 17. Removal steps of LCD panel and hinges (continued) Remove eight screws , and release the hinges from the LCD panel in the direction shown by arrows Step Screw (quantity) Color Torque M2.0 × 3 mm, flat-head, nylon-coated (8) Black 2.0kgfcm...
Lenovo G470/G475/G570/G575 Locations Front view Integrated camera Wireless module antennas (Select models only) System status indicators Note: For the description of each indicator, see “Status indicators” on page 29. OneKey Rescue system button Power button Built-in microphone Integrated wireless device switch (Select models only)
Lenovo G470/G475/G570/G575 Hardware Maintenance Manual Right-side view Headphone jack Microphone jack Optical drive USB port AC power adapter jack Bottom and Left-side view USB ports HDMI port (Select models only) (G470/G570) RJ-45 port VGA port Fan louvers Kensington slot Hard disk drive (HDD)/Memory/CPU (Central processing unit)/Mini PCI...
Lenovo G470/G475/G570/G575 Parts list This section presents the following service parts: • “Overall” on page 72 • “LCD FRUs” on page 77 • “Keyboard” on page 79 • “Miscellaneous parts” on page 84 • “AC adapters” on page 85 • “Power cords” on page 86 Notes: •...
Lenovo G470/G475/G570/G575 Keyboard Table 7. Parts list—Keyboard G470/G475: Language Bulgarian 25011556 Czech-Slovakian 25011557 International English 25011558 Swiss 25011559 Slovenian 25011560 Icelandic 25011561 Belgian 25011562 Four Nordic countries 25011563 Hungarian 25011564 Hebrew 25011565 Greek 25011566 Dutch 25011567 Japanese 25011568 Brazilian 25011569...
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Lenovo G470/G475/G570/G575 Hardware Maintenance Manual Table 7. Parts list—Keyboard (continued) Language Bulgarian 25011633 Czech-Slovakian 25011634 International English 25011635 Swiss 25011636 Slovenian 25011637 Icelandic 25011638 Belgian 25011639 Four Nordic countries 25011640 Hungarian 25011641 Hebrew 25011672 Greek 25011673 Dutch 25011674 Japanese 25011675...
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Lenovo G470/G475/G570/G575 Table 7. Parts list—Keyboard (continued) Language Russian 25011651 Traditional Chinese 25011652 Korean 25011653 Canadian English&French 25011654 LA-Spanish 25011655 Portuguese 25011656 Sunrex Thai 25011657 Turkish 25011658 Spanish 25011659 Italian 25011660 UK English 25011661 US English 25011670 G570/G575: Language Bulgarian...
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Lenovo G470/G475/G570/G575 Hardware Maintenance Manual Table 7. Parts list—Keyboard (continued) Language Bulgarian 25012399 Czech-Slovakian 25012400 International English 25012401 Swiss 25012402 Slovenian 25012403 Russian 25012404 Icelandic 25012405 Belgian 25012406 Four Nordic countries 25012407 Hungarian 25012408 Hebrew 25012409 Dutch 25012410 Japanese 25012411...
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Lenovo G470/G475/G570/G575 Table 7. Parts list—Keyboard (continued) Language Russian 25012436 Traditional Chinese 25012437 Korean 25012438 Canadian English&French 25012439 LA-Spanish 25012440 Portuguese 25012441 Sunrex Thai 25012442 Turkish 25012443 Spanish 25012444 Italian 25012445 UK English 25012446 US English 25012185...
Lenovo G470/G475/G570/G575 Hardware Maintenance Manual Power cords A Lenovo power cord for a specific country or region is usually available only in that country or region: Table 10. Parts list—3-pin power cords Region 145000602 • SSD YD-118-1+IEC53RVV+SSD-3-2B-1 1m 145000600 • LINETEK PC323+RVV300/300+LS15 1m...
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Lenovo G470/G475/G570/G575 Table 10. Parts list—3-pin power cords(continued) Region Switzerland 145000565 • Longwell LP-37+H03VV-F+LS-18 1m Brazil 145000564 • Longwell LP-46+H03VV-F+LS-18 1m Israel 145000563 • Longwell LP-41+H03VV-F+LS-18 1m 145000562 • Longwell LP-30B+SPT-2 18AWG+LS-18 1m 145000561 • Longwell LP-61L+H03VV-F+LS-18 1m Indian 145000560 •...
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Lenovo G470/G475/G570/G575 Hardware Maintenance Manual Table 10. Parts list—3-pin power cords(continued) Region Korea 145000533 • Volex LP-486+KTLH03VV-F+LS-5 1m Australia 145000532 • Volex LP-23A+LFC-3R+LS-18 1m Taiwan 145000531 • Volex LP-71+VCTF+LS-33 1m Japan 145000530 • Volex LP-54+VCTF+LS-18 1m 145000525 • Volex LP-34A+H03VV-F+LS-18 1m...
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Actual results may vary. Users of this document should verify the applicable data for their specific environment. Trademarks The following terms are either registered trademarks or trademarks of Lenovo in the United States and/or other countries: ® Lenovo ®...