Lenovo Y 500 Owners Manual

							Lenovo Y400/Y500
47 1090 Keyboard bezel
For access, remove these FRUs in order:
 see “1010 Battery pack” on page 35
 see “1020 Dummy card” on page 36
 see “1030 Optical drive” on page 37
 see “1040 Hard disk drive(HDD)/Memory/Mini PCI Express Card slot 
compartment cover” on page 38
 see “1050 Hard disk drive” on page 39
 see “1060 DIMM” on page 41
 see “1070 PCI Express Mini Card for wireless LAN/WAN” on page 42
 see “1080 Keyboard” on page 44
Figure 9. Removal steps of keyboard bezel
Y400: Remove three screws   and three screws   on the bottom.
StepScrew (quantity)ColorTorque
M2.5 × 8 mm, flat-head, nylok-coated (3)
M2 × 3 mm, flat-head, nylok-coated (3) Black
Black1.5 ~ 2.0 kgfcm
1.0 ~ 1.5 kgfcm
ab
a
abbb
a
a 
						

							Lenovo Y400/Y500 Hardware Maintenance Manual
48
Figure 9. Removal steps of keyboard bezel (continued)
Y500: Remove four screws  , three screws   on the bottom.
Y400: Detach the power board connector and TouchPad cable in the direction 
shown by arrows  .
StepScrew (quantity)ColorTorque
M2.5 × 10 mm, flat-head, nylok-coated(4)
M2 × 3 mm, flat-head, nylok-coated (3) Black
Black1.5 ~ 2.0 kgfcm
1.0 ~ 1.5 kgfcm
ab
a
a
aa
bbb
a
cd
Y
4
00
d
c 
						

							Lenovo Y400/Y500
49
Figure 9. Removal steps of keyboard bezel (continued)
Y500: Remove the screw  . Detach the power board connector and TouchPad 
cable in the direction shown by arrows  . IO board connector in the 
direction shown by arrow  .
When installing: Make sure that the power board connector, TouchPad and IO 
board cable are attached firmly.
StepScrew (quantity)ColorTorque
M2.5 × 4 mm, flat-head, nylok-coated (1) Black 1.5 ~ 2.0 kgfcm
cdef
Y500c
e
d
f
a 
						

							Lenovo Y400/Y500 Hardware Maintenance Manual
50
Figure 9. Removal steps of keyboard bezel (continued)
Remove the keyboard bezel in the direction shown by arrow  .
g
Y50
0
g 
						

							Lenovo Y400/Y500
51 1100 System board
For access, remove these FRUs in order:
 see “1010 Battery pack” on page 35
 see “1020 Dummy card” on page 36
 see “1030 Optical drive” on page 37
 see “1040 Hard disk drive(HDD)/Memory/Mini PCI Express Card slot 
compartment cover” on page 38
 see “1050 Hard disk drive” on page 39
 see “1060 DIMM” on page 41
 see “1070 PCI Express Mini Card for wireless LAN/WAN” on page 42
 see “1080 Keyboard” on page 44
 see “1090 Keyboard bezel” on page 47Important 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.
 Avoid rough handling of any kind.
 In the whole process, make sure not to drop or stack the system board.
 If you put a system board down, make sure to put it only on a padded 
surface such as an ESD mat or conductive corrugated material. 
						

							Lenovo Y400/Y500 Hardware Maintenance Manual
52
Figure 10. Removal steps of system board
Y400: Remove screws  . Detach camera connector in the direction shown by 
arrow  , unplug DC-IN connector in the direction shown by arrow  , LCD 
connector in the direction shown by arrow  .
StepScrew (quantity)ColorTorque
M2.5 × 4 mm, flat-head, nylok-coated (2) Black 2.0 ~ 2.5 kgfcm
abcd
Y40
0
b
aa
cd
a 
						

							Lenovo Y400/Y500
53
Figure 10. Removal steps of system board
Y500: Loosen three screws  . Unplug LCD, speakers cable connector, DC-IN, 
camera connectors in the direction shown by arrows  .
ab
Y50
0
b
aa
b
b 
						

							Lenovo Y400/Y500 Hardware Maintenance Manual
54
Figure 10. Removal steps of system board
When installing: Make sure that all the connectors are attached firmly.
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 ports as shown in  . Improper placement of the ports or those 
jacks might cause a damage.
StepScrew (quantity)ColorTorque
M2.5 × 4 mm, flat-head, nylok-coated (3) Black 1.5 ~2.0 kgfcm
a
b
a
c
Y50
0c
aa 
						

							Lenovo Y400/Y500
55 1110 LCD unit
For access, remove these FRUs in order:
 see “1010 Battery pack” on page 35
 see “1020 Dummy card” on page 36
 see “1030 Optical drive” on page 37
 see “1040 Hard disk drive(HDD)/Memory/Mini PCI Express Card slot 
compartment cover” on page 38
 see “1050 Hard disk drive” on page 39
 see “1060 DIMM” on page 41
 see “1070 PCI Express Mini Card for wireless LAN/WAN” on page 42
 see “1080 Keyboard” on page 44
 see “1090 Keyboard bezel” on page 47
 see “1100 System board” on page 51
Figure 11. Removal steps of LCD unit
Y400: Release the antenna cables from the cable guides in the direction shown by 
arrows . Remove screws .
StepScrew (quantity)ColorTorque
M2.5 × 4 flat-head, nylok-coated (4)  Black  1.5 ~2.0 kgfcm
ab
Y40
0
b
b
b
b
a
a
b 
						

							Lenovo Y400/Y500 Hardware Maintenance Manual
56
Figure 11. Removal steps of LCD unit (continued)
Y500: 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)Silver 1.5 ~ 2.0 kgfcm
ab
Y50
0
bb
bb
a
a
a
b