Lenovo G40 Manual

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Lenovo G40-30/G40-45/G40-70/G40-70m/Z40-70/Z40-75
Figure 13. Removal steps of speakers and DC-in cable (continued)
Remove the DC-in cable in the direction shown by arrow 2.
2  
						

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G40-30/G40-45/G40-70/G40-70m/Z40-70/Z40-75 Hardware Maintenance Manual
1140 LCD unit
For access, remove these FRUs in order: 
• “1010 Battery pack” on page 33
• “1020 Base cover” on page 34
• “1030 Optical drive” on page 36
• “1040 Hard disk drive” on page 37
• “1050 PCI Express Mini Card for wireless LAN” on page 39
• “1070 Fan assembly” on page 42
• “1080 Keyboard” on page 44
• “1090 Keyboard bezel” on page 47
• “1100 USB&audio board” on page 50
• “1110 System board” on page 52
• “1130 Speakers and DC-in cable” on page 56
Figure 14. Removal steps of  LCD unit
Release the antenna cables from the cable guides and then remove the scr\
ews 
1.
1
1
Step
Screw (quantity) ColorTorque
1M2 × 3.5 mm, flat-head, nylok-coated (4)  
LCD Module to D Black
1.5 ~ 2.0 kgf*cm
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 that you do not 
pinch the antenna cables when you attach the LCD assembly. Route the 
LCD cable along the cable guides.  
						

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Lenovo G40-30/G40-45/G40-70/G40-70m/Z40-70/Z40-75
Figure 14. Removal steps of LCD unit (continued)
Remove the LCD unit in the direction shown by arrow  2.
2  
						

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G40-30/G40-45/G40-70/G40-70m/Z40-70/Z40-75 Hardware Maintenance Manual
1150 LCD front bezel, LCD panel, and hinges
For access, remove these FRUs in order: 
• “1010 Battery pack” on page 33
• “1020 Base cover” on page 34
• “1030 Optical drive” on page 36
• “1040 Hard disk drive” on page 37
• “1050 PCI Express Mini Card for wireless LAN” on page 39
• “1070 Fan assembly” on page 42
• “1080 Keyboard” on page 44
• “1090 Keyboard bezel” on page 47
• “1100 USB&audio board” on page 50
• “1110 System board” on page 52
• “1130 Speakers and DC-in cable” on page 56
• “1140 LCD unit” on page 58
Figure 15. Removal steps of LCD front bezel, LCD panel, and hinges
Remove the LCD front bezel in the direction shown by arrows  1.
1
1
1
1  
						

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Lenovo G40-30/G40-45/G40-70/G40-70m/Z40-70/Z40-75
Figure 15. Removal steps of LCD front bezel, LCD panel, and hinges 
(continued)
Remove the screws 2.
2
2
2
2
Step
Screw (quantity) ColorTorque
2M2 × 3.5 mm, flat-head, nylok-coated (4)  
LCD Module to Hinge & A Black
1.5 ~ 2.0 kgf*cm
Lift the LCD panel slightly 
3. Peel off the adhesive tape and detach the 
connector in the direction shown by arrow  4. Then remove the LCD panel.
3
4
When installing:
 Make sure that the metal connector is attached firmly.  
						

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G40-30/G40-45/G40-70/G40-70m/Z40-70/Z40-75 Hardware Maintenance Manual
Figure 15. Removal steps of LCD front bezel, LCD panel, and  
hinges (continued)
Remove the screws  5. Then release the hinges in the direction shown by 
arrows  6.
5
5
6
6
Step
Screw (quantity) ColorTorque
5M2 × 3.5 mm, flat-head, nylok-coated (4)  
Hinge L  & R to A Black
1.5 ~ 2.0 kgf*cm  
						

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Lenovo G40-30/G40-45/G40-70/G40-70m/Z40-70/Z40-75
1160 Camera
For access, remove these FRUs in order: 
• “1010 Battery pack” on page 33
• “1020 Base cover” on page 34
• “1030 Optical drive” on page 36
• “1040 Hard disk drive” on page 37
• “1050 PCI Express Mini Card for wireless LAN” on page 39
• “1070 Fan assembly” on page 42
• “1080 Keyboard” on page 44
• “1090 Keyboard bezel” on page 47
• “1100 USB&audio board” on page 50
• “1110 System board” on page 52
• “1130 Speakers and DC-in cable” on page 56
• “1140 LCD unit” on page 58
Figure 16. Removal steps of camera
Detach the integrated camera connector in the direction shown by arrow  1.
1  
						

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G40-30/G40-45/G40-70/G40-70m/Z40-70/Z40-75 Hardware Maintenance Manual
Figure 16. Removal steps of camera (continued)
Remove the camera in the direction shown by arrow 2.
Note:  The integrated camera is stuck on the top center of the LCD cover.
2
When installing:  Stick the integrated camera to the top center of the LCD 
cover and adjust its placement to make sure the connector is attached firmly .  
						

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Lenovo G40-30/G40-45/G40-70/G40-70m/Z40-70/Z40-75
1170 LCD cable and antenna assembly
For access, remove these FRUs in order:
• “1010 Battery pack” on page 33
• “1020 Base cover” on page 34
• “1030 Optical drive” on page 36
• “1040 Hard disk drive” on page 37
• “1050 PCI Express Mini Card for wireless LAN” on page 39
• “1070 Fan assembly” on page 42
• “1080 Keyboard” on page 44
• “1090 Keyboard bezel” on page 47
• “1100 USB&audio board” on page 50
• “1110 System board” on page 52
• “1130 Speakers and DC-in cable” on page 56
• “1140 LCD unit” on page 58
• “1150 LCD front bezel, LCD panel, and hinges” on page 60
Figure 17. Removal steps of LCD cable and antenna assembly
Remove the LCD cable and antenna assembly in the direction shown by 
arrows  1.
1
1
1  
						

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G40-30/G40-45/G40-70/G40-70m/Z40-70/Z40-75 Hardware Maintenance Manual
Locations
Front view and right-side view
1 Integrated camera
2 Built-in microphone
Note: Select models may have two microphones, please refer to the actual produ\
ct.
3
 Wireless LAN antennas
4 Computer display
5 Power button
6 Touchpad
7 System status indicators
Note:  For the description of each indicator, see “Status indicators” on page 29 .
8
 Combo audio jack
9 Memory card slot
J USB port
K Optical drive
L Kensington lock slot
1
2
3
4
5
6
7
8
3
9
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12