Lenovo G500 Manual
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Lenovo G400/G500/G405/G505/G410/G510 57 Figure 10. Removal steps of system board G500: Loosen two screws , detach the system board connector in the direction shown by arrow and remove the switch board. Loosen three screws . Detach LCD connector in the direction shown by arrow , unplug the USB board and optical disk drive board connectors in the direction shown by arrows . Unplug the DC-IN cable , back-up battery and speakers connectors in the direction shown by arrows . G500: a b aa b a bc d a a a c b
Lenovo G400/G500/G405/G505/G410/G510 Hardware Maintenance Manual 58 Figure 10. Removal steps of system board (continued) G505: G500: a a a c b d d
Lenovo G400/G500/G405/G505/G410/G510 59 Figure 10. Removal steps of system board (continued) G505: When installing: Make sure that all the connectors are attached firmly. Remove the system board in the direction shown by arrow . StepScrew (quantity)ColorTorque M2.5 × 4 mm, flat-head, nylok-coated (3) Black 2.0 ~2.5 kgfcm d d a e aa e
Lenovo G400/G500/G405/G505/G410/G510 Hardware Maintenance Manual 60 Figure 10. Removal steps of system board (continued) G505: When installing: When attaching the system board to the base cover, adjust the placement of the ports as shown in , and make sure that both of the USB ports and the microphone jack are attached to the holes on the base cover as shown in . Improper placement of the ports or those jacks might cause a damage. aa e
Lenovo G400/G500/G405/G505/G410/G510 61 1110 LCD unit For access, remove these FRUs in order: “1010 Battery pack” on page 36 “1020 Dummy card” on page 37 “1030 Hard disk drive(HDD)/Memory/Mini PCI Express Card slot compartment cover” on page 38 “1040 Hard disk drive” on page 39 “1050 Optical drive” on page 42 “1060 DIMM” on page 44 “1070 PCI Express Mini Card for wireless LAN/WAN” on page 45 “1080 Keyboard” on page 47 “1090 Keyboard bezel” on page 51 “1100 System board” on page 55 Figure 11. Removal steps of LCD unit G400: Remove four screws . StepScrew (quantity)ColorTorque M2.5 × 6 flat-head, nylok-coated (4) White 1.5 ~2.0 kgfcm a a aaa a
Lenovo G400/G500/G405/G505/G410/G510 Hardware Maintenance Manual 62 Figure 11. Removal steps of LCD unit (continued) G500: Release the antenna cables from the cable guides in the direction shown by arrows . Remove four screws . 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. Make sure that the LCD connector is attached firmly and make sure that you do not pinch the antenna cables when you attach the LCD assembly. Route the LCD cable along the cable guides. StepScrew (quantity)ColorTorque M2.5 × 5 mm, flat-head, nylok-coated (4)Black 2.0 ~ 2.5 kgfcm ab b bb b aa b
Lenovo G400/G500/G405/G505/G410/G510 63 Figure 11. Removal steps of LCD unit (continued) Remove the LCD unit in the direction shown by arrows . c c c
Lenovo G400/G500/G405/G505/G410/G510 Hardware Maintenance Manual 641120 Fan assembly and Heat Sink assembly For access, remove these FRUs in order: “1010 Battery pack” on page 36 “1020 Dummy card” on page 37 “1030 Hard disk drive(HDD)/Memory/Mini PCI Express Card slot compartment cover” on page 38 “1040 Hard disk drive” on page 39 “1050 Optical drive” on page 42 “1060 DIMM” on page 44 “1070 PCI Express Mini Card for wireless LAN/WAN” on page 45 “1080 Keyboard” on page 47 “1090 Keyboard bezel” on page 51 “1100 System board” on page 55
Lenovo G400/G500/G405/G505/G410/G510 65 Figure 12. Removal steps of fan assembly and heat sink assembly (continued) Detach the fan connector in the direction shown by arrow loosen three screws and two screws to lift the fan assembly. abc a bb c cb
Lenovo G400/G500/G405/G505/G410/G510 Hardware Maintenance Manual 66 Figure 12. Removal steps of fan assembly and heat sink assembly (continued) G405: a c c b bb