Lenovo G470 Hardware Maintenance Manual

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User manual (49 pages)

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Removing and replacing an FRU

This section presents exploded ﬁgures with the instructions to indicate how to

remove and replace the FRU. Make sure to observe the following general rules:

1. Do not attempt to service any computer unless you have been trained and

certiﬁed. An untrained person runs the risk of damaging parts.

2. Before replacing any FRU, review "FRU replacement notices" on page 32

3. Begin by removing any FRUs that have to be removed before the failing

FRU. Any of such FRUs are listed at the top of the page. Remove them in

the order in which they are listed.

4. Follow the correct sequence in the steps to remove the FRU, as given in the

ﬁgures by the numbers in square callouts.

5. When turning a screw to replace an FRU, turn it in the direction as given by

the arrow in the ﬁgure.

6. When removing the FRU, move it in the direction as given by the arrow in

the ﬁgure.

7. To put the new FRU in place, reverse the removal procedures and follow

any of the notes that pertain to replacement. For information about

connecting and arranging internal cables, see "Locations" on page 69.

8. When replacing an FRU, use the correct screw as shown in the procedures.

DANGER

Before removing any FRU, turn off the computer, unplug all power cords from

electrical outlets, remove the battery pack, and then disconnect any of the

interconnecting cables.

Attention: After replacing an FRU, do not turn on the computer until you have

made sure that all screws, springs, and other small parts are in place and none

are loose inside the computer. Verify this by shaking the computer gently and

listening for rattling sounds. Metallic parts or metal ﬂakes can cause electrical

short circuits.

Attention: The system board is sensitive to, and can be damaged by,

electrostatic discharge. Before touching it, establish personal grounding by

touching a ground point with one hand or using an electrostatic discharge (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

for the G470&G475&G570&G575.

Lenovo G470/G475/G570/G575

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Summary of Contents for Lenovo G470

Page 1 (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 for the G470&G475&G570&G575.
Page 2: 1010 Battery Pack
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 .
Page 3: 1020 Dummy Card
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 www.battery-adapter.com...
Page 4: 1030 Optical Drive
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...
Page 5: 1040 Hard Disk Drive (Hdd)/Memory/Cpu (Central Processing Unit)/Mini Pci Expresscard Slot Compartment Cover
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.
Page 6: 1050 Hard Disk Drive
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: •...
Page 7 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. www.battery-adapter.com...
Page 8 Lenovo G470/G475/G570/G575 Hardware Maintenance Manual 1060 DIMM 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 6.
Page 9: 1070 Fan Assembly And Heat Sink Assembly
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.
Page 10 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 can cause distortion or deformation and imperfect contact with components.
Page 11 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.
Page 12 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 •...
Page 13: 1090 Pci Express Mini Card For Wireless Lan
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.
Page 14 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)
Page 15 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.
Page 16 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 lock the FPC connector.
Page 17: 1110 Keyboard Bezel
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 •...
Page 18 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...
Page 19 Lenovo G470/G475/G570/G575 Figure 11. Removal steps of keyboard bezel (continued) Remove the keyboard bezel in the direction shown by arrows www.battery-adapter.com...
Page 20: 1120 Power Board And Touch Inductive Panel
Lenovo G470/G475/G570/G575 Hardware Maintenance Manual 1120 Power board and touch inductive panel 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 ”...
Page 21: 1130 System Board
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.
Page 22 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)
Page 23 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...
Page 24: 1140 Lcd Unit
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 ”...
Page 25 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.
Page 26 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 www.battery-adapter.com...
Page 27: 1150 Speakers, Bluetooth Daughter Card And Base Cover
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 ”...
Page 28 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.
Page 29 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.
Page 30 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...
Page 31 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.
Page 32: 1160 Lcd Front Bezel
Lenovo G470/G475/G570/G575 Hardware Maintenance Manual 1160 LCD front bezel 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 ”...
Page 33: 1170 Lcd Panel And Hinges
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 ”...
Page 34 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...
Page 35: 1180 Integrated Camera
Lenovo G470/G475/G570/G575 1180 Integrated camera 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 ”...
Page 36: 1190 Antenna Assembly And Lcd Cover
Lenovo G470/G475/G570/G575 Hardware Maintenance Manual 1190 Antenna assembly and LCD 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 •...

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Lenovo G470 Hardware Maintenance Manual

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