Lenovo G475 Notebook User Manual

Lenovo G470/G475/G570/G575Hardware Maintenance Manual

6Lenovo G470/G475/G570/G575 Hardware Maintenance ManualHandling devices that are sensitive to electrostatic dischargeAny computer part containing tra

7Safety informationSafety notices: multilingual translationsThe safety notices in this section are provided in English, French, German, Hebrew

8Lenovo G470/G475/G570/G575 Hardware Maintenance ManualSafety notice 2 DANGERSome standby batteries contain a small amount of nickel and cadmium. Do

9Safety informationSafety notice 3 DANGERThe battery pack contains small amounts of nickel. Do not disassemble it, throw it into re or water, or shor

10Lenovo G470/G475/G570/G575 Hardware Maintenance ManualSafety notice 4 DANGERThe lithium battery can cause a fire, an explosion, or a severe burn. Do

11Safety informationSafety notice 5If the LCD breaks and the uid from inside the LCD gets into your eyes or on your hands, immediately wash the affec

12Lenovo G470/G475/G570/G575 Hardware Maintenance ManualSafety notice 6 DANGERTo avoid shock, do not remove the plastic cover that protects the lower

13Safety informationSafety notice 8 DANGERBefore removing any FRU, turn off the computer, unplug all power cords from electrical outlets, remove the

14Lenovo G470/G475/G570/G575 Hardware Maintenance ManualLaser compliance statementSome models of Lenovo computer are equipped from the factor

15Safety informationA CD-ROM drive, a DVD-ROM drive, or any other storage device installed may contain an embedded Class 3A or Class 3B laser diode. N

Note:Before using this information and the product it supports, be sure to read the general information under “Notices” on page 89.First Edition (Dec.

16Lenovo G470/G475/G570/G575 Hardware Maintenance ManualImportant service informationThis chapter presents the following important service information

17Important service informationUse the following strategy to prevent unnecessary expense for replacing and servicing FRUs:If you are instructed to re

18Lenovo G470/G475/G570/G575 Hardware Maintenance ManualImportant information about replacing RoHS compliant FRUsRoHS, The Restriction of Hazardou

19General checkout General checkout This chapter presents the following information:• “What to do rst” on page 20• “Power system checkout” on page

20Lenovo G470/G475/G570/G575 Hardware Maintenance ManualWhat to do rstWhen you do return an FRU, you must include the following information in the pa

21General checkout Power system checkoutTo verify a symptom, follow the steps below:1. Turn off the computer.2. Remove the battery pack.3. Connect

22Lenovo G470/G475/G570/G575 Hardware Maintenance ManualPerform operational charging. If the battery status indicator or icon does not light on

23Related service informationRelated service informationThis chapter presents the following information:• “Restoring the factory contents by using On

24Lenovo G470/G475/G570/G575 Hardware Maintenance ManualWhen you use the recovery discs to boot your computer, the system will enter the user interfac

25Related service informationPower managementNote: Power management modes are not supported for APM operating system.To reduce power consumption, th

iiiContentsAbout this manual ... ivSafety information ... 1General safety ...

26Lenovo G470/G475/G570/G575 Hardware Maintenance ManualHibernation modeIn hibernation mode, the following occurs:The system status, RAM, VRAM, and se

27Lenovo G470/G475/G570/G575Lenovo G470/G475/G570/G575This chapter presents the following product-specific service references and product-speci

28Lenovo G470/G475/G570/G575 Hardware Maintenance ManualTable 1. Specications (continued)Feature DescriptionI/O port • Stereo Headphone Jack• Micr

29Lenovo G470/G475/G570/G575Status indicatorsThe system status indicators below show the computer status:1 23 4 5 6Table 2. Status indicatorsIndicator

30Lenovo G470/G475/G570/G575 Hardware Maintenance ManualTable 2. Status indicators (continued)Indicator Meaning4Battery status Blinking amber (500ms o

31Lenovo G470/G475/G570/G575Fn key combinationsThe following table shows the function of each combination of Fn with a function key.Table

32Lenovo G470/G475/G570/G575 Hardware Maintenance ManualFRU replacement noticesThis section presents notices related to removing and replacing par

33Lenovo G470/G475/G570/G575Removing and replacing an FRUThis section presents exploded gures with the instructions to indicate how to remove and rep

34Lenovo G470/G475/G570/G575 Hardware Maintenance Manual1010 Battery pack DANGEROnly use the battery specied in the parts list for your computer. Any

35Lenovo G470/G475/G570/G5751020 Dummy cardFor access, remove this FRU: • “1010 Battery pack” on page 34Figure 2. Removal steps of dummy cardRemove d

ivAbout this manualThis manual contains service and reference information for the following Lenovo product:Lenovo G470/G475/G570/G575Use this

36Lenovo G470/G475/G570/G575 Hardware Maintenance Manual1030 Optical driveFor access, remove these FRUs in order:• “1010 Battery pack” on page 34Figu

37Lenovo G470/G475/G570/G5751040 Hard disk drive (HDD)/Memory/CPU (Central processing unit)/Mini PCI ExpressCard slot compartment cover For access, re

38Lenovo G470/G475/G570/G575 Hardware Maintenance Manual1050 Hard disk drive For access, remove these FRUs in order: • “1010 Battery pack” on page 34

39Lenovo G470/G475/G570/G5753Step Screw (quantity) Color Torque1M2.0 × 4 mm, at-head, nylon-coated (2) Black 2.0kgfcm When installing: Make sure tha

40Lenovo G470/G475/G570/G575 Hardware Maintenance Manual1060 DIMMFor access, remove these FRUs in order: • “1010 Battery pack” on page 34• “1040 Har

41Lenovo G470/G475/G570/G5751070 Fan assembly and Heat Sink assemblyFor access, remove these FRUs in order: • “1010 Battery pack” on page 34• “1040

42Lenovo G470/G475/G570/G575 Hardware Maintenance ManualFigure 7. Removal steps of fan assembly and heat sink assembly (continued)Lift the fan assembl

43Lenovo G470/G475/G570/G575Figure 7. Removal steps of fan assembly and heat sink assembly (continued)aWhen installing: Before you attach the fan ass

44Lenovo G470/G475/G570/G575 Hardware Maintenance Manual1080 CPUFor access, remove these FRUs in order: • “1010 Battery pack” on page 34• “1040 Hard

45Lenovo G470/G475/G570/G5751090 PCI Express Mini Card for wireless LANFor access, remove these FRUs in order:• “1010 Battery pack” on page 34• “104

1Safety informationSafety informationThis chapter presents the following safety information that you need to get familiar with before you servic

46Lenovo G470/G475/G570/G575 Hardware Maintenance ManualNotes: wireless LAN card has 2 cables in step 1. wireless LAN card in some models may have 3

47Lenovo G470/G475/G570/G5751100 KeyboardFor access, remove these FRUs in order:• “1010 Battery pack” on page 34• “1040 Hard disk drive (HDD)/Memo

48Lenovo G470/G475/G570/G575 Hardware Maintenance ManualFigure 10. Removal steps of keyboard (continued)Lift the keyboard a little 3, unlock the FP

49Lenovo G470/G475/G570/G5751110 Keyboard bezelFor access, remove these FRUs in order:• “1010 Battery pack” on page 34• “1030 Optical drive” on page

50Lenovo G470/G475/G570/G575 Hardware Maintenance ManualFigure 11. Removal steps of keyboard bezel (continued)Remove one screw 5 and detach three FPC

51Lenovo G470/G475/G570/G575Figure 11. Removal steps of keyboard bezel (continued) Remove the keyboard bezel in the direction shown by arrows 7.7

52Lenovo G470/G475/G570/G575 Hardware Maintenance Manual1120 Power board and touch inductive panelFor access, remove these FRUs in order:• “1010 Batt

53Lenovo G470/G475/G570/G5751130 System boardImportant notices for handling the system board:When handling the system board, bear the following in min

54Lenovo G470/G475/G570/G575 Hardware Maintenance ManualFigure 13. Removal steps of system board (continued)Remove ve screws 2 and detach a connector

55Lenovo G470/G475/G570/G575Figure 13. Removal steps of system board (continued)Remove the system board in the direction shown by arrow 4.ba a4When in

2Lenovo G470/G475/G570/G575 Hardware Maintenance ManualGeneral safetyFollow these rules below to ensure general safety:Observe a good housekeeping i

56Lenovo G470/G475/G570/G575 Hardware Maintenance Manual1140 LCD unitFor access, remove these FRUs in order: • “1010 Battery pack” on page 34• “1020

57Lenovo G470/G475/G570/G575Figure 14. Removal steps of LCD unit (continued)223333When installing:Route the antenna cables along the cable guides. As

58Lenovo G470/G475/G570/G575 Hardware Maintenance ManualFigure 14. Removal steps of LCD unit (continued)Remove the LCD unit in the direction shown by

59Lenovo G470/G475/G570/G5751150 Speakers, bluetooth daughter card and base coverFor access, remove these FRUs in order:• “1010 Battery pack” on page

60Lenovo G470/G475/G570/G575 Hardware Maintenance ManualFigure 15. Removal steps of bluetooth daughter card and base cover (continued)The Bluetooth

61Lenovo G470/G475/G570/G575Figure 15. Removal steps of bluetooth daughter card and base cover (continued)Remove one screw 5 and then remove the US

62Lenovo G470/G475/G570/G575 Hardware Maintenance ManualNote: Applying labels to the base coverThe illustrations used in this Note are of the Lenovo G

63Lenovo G470/G475/G570/G575For models in other countries or regions:a Bluetooth label (for US/CA/TW/Indonesia)b SIRIM Bluetooth labelc SIRIM WLAN

64Lenovo G470/G475/G570/G575 Hardware Maintenance Manual1160 LCD front bezelFor access, remove these FRUs in order: • “1010 Battery pack” on page 34•

65Lenovo G470/G475/G570/G5751170 LCD panel and hingesFor access, remove these FRUs in order: • “1010 Battery pack” on page 34• “1020 Dummy card” on

3Safety informationElectrical safetyObserve the following rules when working on electrical equipments.Important:Use only approved tools and test equip

66Lenovo G470/G475/G570/G575 Hardware Maintenance ManualFigure 17. Removal steps of LCD panel and hinges (continued)Remove eight screws 4, and releas

67Lenovo G470/G475/G570/G5751180 Integrated cameraFor access, remove these FRUs in order:• “1010 Battery pack” on page 34• “1020 Dummy card” on page

68Lenovo G470/G475/G570/G575 Hardware Maintenance Manual1190 Antenna assembly and LCD cover For access, remove these FRUs in order: • “1010 Battery p

69Lenovo G470/G475/G570/G575LocationsFront view1 Integrated camera2 Wireless module antennas (Select models only)3 System status indicatorsNote: Fo

70Lenovo G470/G475/G570/G575 Hardware Maintenance ManualRight-side view1 Headphone jack2 Microphone jack3 Optical drive4 USB port5 AC power adapt

71Lenovo G470/G475/G570/G575Parts listThis section presents the following service parts:• “Overall” on page 72• “LCD FRUs” on page 77• “Keyboard” o

72Lenovo G470/G475/G570/G575 Hardware Maintenance ManualOverall1237cdb14131916184f10e56891211a201517

73Lenovo G470/G475/G570/G575Table 4. Parts list—OverallNo. FRU FRU no.1 LCD unit (see “LCD FRUs” on page 77.)2 Keyboard (see “Keyboard” on page 79.)3

74Lenovo G470/G475/G570/G575 Hardware Maintenance ManualTable 4. Parts list—Overall (continued)No. FRU FRU no.11 DDRIII 1333 1GB, SY321NG08HBF (Vega/

75Lenovo G470/G475/G570/G575Table 4. Parts list—Overall (continued)No. FRU FRU no.14 Battery pack, 6 cell 2.2 Ah, G470 Sony L10N6Y02 48Wh 3S2P Bty(2yr

4Lenovo G470/G475/G570/G575 Hardware Maintenance ManualAlways look carefully for possible hazards in your work area. Examples of • these hazards a

76Lenovo G470/G475/G570/G575 Hardware Maintenance ManualTable 4. Parts list—Overall (continued)No. FRU FRU no.17 HDD, 640G 5400rpm SATA, WD6400BPVT-24

77Lenovo G470/G475/G570/G575LCD FRUsIn Lenovo G470/G475/G570/G575, there are following types of LCDs.“14.0-in. HD TFT”• “15.6-in. HD TFT”• 76321854

78Lenovo G470/G475/G570/G575 Hardware Maintenance Manual14.0-in. HD TFT (G470/G475)Table 5. Parts list—14.0-in. HD TFTNo. FRU FRU no.1 PIWG1 LCD SCREW

79Lenovo G470/G475/G570/G575KeyboardTable 7. Parts list—KeyboardG470/G475:Language P/NChiconyBulgarian 25011556 Czech-Slovakian 25011557 Internation

80Lenovo G470/G475/G570/G575 Hardware Maintenance ManualTable 7. Parts list—Keyboard (continued)Language P/NDafonBulgarian 25011633 Czech-Slovakian 2

81Lenovo G470/G475/G570/G575Table 7. Parts list—Keyboard (continued)Language P/NSunrexRussian 25011651 Traditional Chinese 25011652 Korean 25011653

82Lenovo G470/G475/G570/G575 Hardware Maintenance ManualTable 7. Parts list—Keyboard (continued)Language P/NDafonBulgarian 25012399 Czech-Slovakian 2

83Lenovo G470/G475/G570/G575Table 7. Parts list—Keyboard (continued)Language P/NSunrexRussian 25012436 Traditional Chinese 25012437 Korean 25012438

84Lenovo G470/G475/G570/G575 Hardware Maintenance ManualMiscellaneous partsTable 8. Parts list—Miscellaneous parts FRU P/NSystem miscellaneous parts:

85Lenovo G470/G475/G570/G575AC adaptersTable 9. Parts list—3-pin AC adaptersFRU P/NDelta ADP-65KH BD 20V/3.25A Aadapter 36001929 Liteon PA-1650-56LC

5Safety informationSafety inspection guideThe purpose of this inspection guide is to assist you in identifying potential unsafe conditions. As

86Lenovo G470/G475/G570/G575 Hardware Maintenance ManualPower cordsA Lenovo power cord for a specic country or region is usually available only in th

87Lenovo G470/G475/G570/G575Table 10. Parts list—3-pin power cords(continued)Region P/NSwitzerland• Longwell LP-37+H03VV-F+LS-18 1m145000565Brazil•

88Lenovo G470/G475/G570/G575 Hardware Maintenance ManualTable 10. Parts list—3-pin power cords(continued)Region P/NKorea • Volex LP-486+KTLH03VV-F+LS

89NoticesNoticesLenovo may not offer the products, services, or features discussed in this document in all countries. Consult your lo

90Lenovo G470/G475/G570/G575 Hardware Maintenance ManualAny performance data contained herein was determined in a controlled environment. The