Lenovo G570 Service Manual

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Lenovo G470/G475/G570/G575
Figure 14. Removal steps of LCD unit (continued)
22
33
33
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.
StepScrew (quantity)ColorTorque
3M2.5 × 5 mm, flat-head, nylon-coated (4)Black2.0kgfcm  
						

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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 4.
4
4 
						

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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 ” on page 37
• “1050 Hard disk drive ” on page 38
• “1060 DIMM” on page 40
• “1070 Fan assembly and Heat Sink assembly” on page 41
• “1090 PCI Express Mini Card for wireless LAN” on page 45
• “1100 Keyboard” on page 47
• “1110 Keyboard bezel” on page 49
• “1130 System board” on page 53
Figure 15. Speakers, bluetooth daughter card and base cover
Remove  four  screws 1,  release  the  speaker  cables  from  the  cable  guides  in the direction shown by arrows 2, and then remove the speakers.
31
3131
31
2
StepScrew (quantity)ColorTorque
1M2.5 × 5.7 mm, flat-head, nylon-coated (4)Black2.0kgfcm 
						

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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 3.
3
When installing: Make sure that the connector is attached firmly.
Figure 15. Removal steps of bluetooth daughter card and base cover  
Remove the power assembly in the direction shown by arrow 4.
4
When installing: Make sure that the power 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 5  and  then  remove  the  USB  assembly  in  the  direction shown by arrow 6.
5
6
When installing: Make sure that the USB connector is attached firmly.
StepScrew (quantity)ColorTorque
5M2.0 × 3 mm, flat-head, nylon-coated (1)Black2.0kgfcm  
						

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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 
label: 
The following labels need to be peeled off from the old base cover, and need 
to be put on the new base cover. 
For models in China:
a Windows license label (COA)
b ENERGY label
c Rating label
d PRC CODE label
For the location of each label, refer to the following figure:
ab
c
d 
						

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Lenovo G470/G475/G570/G575
For models in other countries or regions:
a Bluetooth label (for US/CA/TW/Indonesia)
b SIRIM Bluetooth label
c SIRIM  WLAN label
d Bluetooth label (for Brazil)
e WLAN label (for Brazil/Israel)
f WLAN label (for US/CA/TW/Indonesia)
g Windows license label (COA)
h Rating label
For the location of each label, refer to the following figure:
g
h
abcdef
For some models, you also need to apply one or two FCC labels. Check the 
old base cover; if it has one or two FCC labels, find duplicates of them in the 
label kit and apply them to the new base cover. 
						

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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 ” on page 37
• “1050 Hard disk drive ” on page 38
• “1060 DIMM” on page 40
• “1070 Fan assembly and Heat Sink assembly” on page 41
• “1090 PCI Express Mini Card for wireless LAN” on page 45
• “1100 Keyboard” on page 47
• “1110 Keyboard bezel” on page 49
• “1130 System board” on page 53
• “1140 LCD unit” on page 56
Figure 16. Removal steps of LCD front bezel
Remove two screws 1. 
StepScrew (quantity)ColorTorque
1M2.5 × 5 mm, flat-head, nylon-coated (2)Silver2.0kgfcm 
Remove the LCD front bezel in the direction shown by arrows 2.
2
2
2
2 
						

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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 ” on page 37
• “1050 Hard disk drive ” on page 38
• “1060 DIMM” on page 40
• “1070 Fan assembly and Heat Sink assembly” on page 41
• “1090 PCI Express Mini Card for wireless LAN” on page 45
• “1100 Keyboard” on page 47
• “1110 Keyboard bezel” on page 49
• “1130 System board” on page 53
• “1140 LCD unit” on page 56
• “1160 LCD front bezel” on page 64
Figure 17. Removal steps of LCD panel and hinges
Remove  four  screws 1,  and  then  release  the  LCD  panel.  Lift  the  LCD  panel a  little  and  detach  the  integrated  camera  connector  in  the  direction  shown  by arrow 2. Remove the LCD panel 3.
1
1
1
12
3
3
3
StepScrew (quantity)ColorTorque
1M2.5 × 4 mm, flat-head, nylon-coated (4)Black2.0kgfcm 
						

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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 4,  and  release  the  hinges  from  the  LCD  panel  in  the direction shown by arrows 5.
4
444
5
5
4444
StepScrew (quantity)ColorTorque
4M2.0 × 3 mm, flat-head, nylon-coated (8)Black2.0kgfcm 
Detach  the  connector  on  the  back  of  the  LCD  panel  in  the  direction  shown  by arrow 6.
6
Note:  The  LCD  circuit  is  attached  to  the  LCD  panel,  and  connected  with  the LCD cable by an FPC connector.
When installing: Make sure that the connector is attached firmly.