Lenovo Flex 2 Instruction Manual

							Lenovo Flex 2-14/Flex 2-14D/Flex 2-15/Flex 2-15D
47
Figure 8. Removal steps of fan assembly and heat sink assembly (continued)
Unplug the fan connector in the direction shown by arrow  .
When installing: Make sure that the fan connector is attached firmly to the 
system board.
Lift the fan assembly in the direction shown by arrow  . Be careful not to 
damage the connector.
Flex 2-14/Flex 2-14D:
b
b
c
c 
						

							Lenovo Flex 2-14/Flex 2-14D/Flex 2-15/Flex 2-15D Hardware Main-
tenance Manual
48
Flex 2-15/Flex 2-15D:
c 
						

							Lenovo Flex 2-14/Flex 2-14D/Flex 2-15/Flex 2-15D
49 1090 System board
For access, remove these FRUs in order:
 “1010 Keyboard” on page 34
 “1020 Optical drive” on page 36
 “1030 Hard disk drive(HDD)/Memory/Mini PCI Express Card slot 
compartment cover” on page 37
 “1040 Battery pack” on page 39
 “1050 Hard disk drive” on page 40
 “1060 DIMM” on page 42
 “1070 PCI Express Mini Card for wireless LAN/WAN” on page 43
 “1080 Fan assembly and Heat Sink assembly” on page 45Important 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 Flex 2-14/Flex 2-14D/Flex 2-15/Flex 2-15D Hardware Main-
tenance Manual
50
Figure 9. Removal steps of system board (continued)
Flex 2-15/Flex 2-15D: Remove five screws  .
Flex 2-14/Flex 2-14 D: Remove two screws   and five screws  .
StepScrew (quantity)ColorTorque
M2 × 3 mm, flat-head, nylok-coated (2) 
(Flex 2-14/Flex 2-14D)
M2 × 4 mm, flat-head, nylok-coated (5) 
(Flex 2-14/Flex 2-14D)
M2.0 × 3.5 mm, flat-head, nylok-coated (5) 
(Flex 2-15/Flex 2-15D)Black
Silver
Black1.5~1.8 kgfcm
1.8~2.0 kgfcm
1.85+/-0.15 kgfcm
a
a
a
a
a
a
ab
a
a
b
bb
b
b
a 
						

							Lenovo Flex 2-14/Flex 2-14D/Flex 2-15/Flex 2-15D
51
Figure 9. Removal steps of system board (continued)
Flex 2-15/Flex 2-15D: Unplug DC-IN cable connector in the direction shown by 
arrow  , speakers connector in the direction shown by arrow  , detach ODD 
transfer board connector in the direction shown by arrow  , touch pad 
connector in the direction shown by arrow  , disconnect LCD connector in the 
direction shown by arrow  .
Flex 2-14/Flex 2-14 D: Unplug DC-IN cable connector in the direction shown by 
arrow  , speakers connector in the direction shown by arrow  , detach touch 
pad connector in the direction shown by arrow  , disconnect LCD connector 
in the direction shown by arrow  .
When installing: Make sure that all the connectors are attached firmly.
fcedg
d
c
g
e
f
fcde
d
e
g
f 
						

							Lenovo Flex 2-14/Flex 2-14D/Flex 2-15/Flex 2-15D Hardware Main-
tenance Manual
52
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 USB, RJ-45, HDMI ports as shown in  , and make sure 
that they are attached to the holes on the base cover as shown. Improper 
placement of those jacks might cause a damage.h
h
abc 
						

							Lenovo Flex 2-14/Flex 2-14D/Flex 2-15/Flex 2-15D
53 1100 LCD unit
For access, remove these FRUs in order
 “1010 Keyboard” on page 34
 “1020 Optical drive” on page 36
 “1030 Hard disk drive(HDD)/Memory/Mini PCI Express Card slot 
compartment cover” on page 37
 “1040 Battery pack” on page 39
 “1050 Hard disk drive” on page 40
 “1060 DIMM” on page 42
 “1070 PCI Express Mini Card for wireless LAN/WAN” on page 43
 “1080 Fan assembly and Heat Sink assembly” on page 45
 “1090 System board” on page 49
Figure 10. Removal steps of LCD unit
Remove five screws  .
Flex 2-15/Flex 2-15D:
a
a
a
aa
a 
						

							Lenovo Flex 2-14/Flex 2-14D/Flex 2-15/Flex 2-15D Hardware Main-
tenance Manual
54
Flex 2-14/Flex 2-14 D:
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 × 4 mm, flat-head, nylok-
coated (5) (Flex 2-14/
Flex 2-14D)
M2.5 × 4.5 mm, flat-head, 
nylok-coated (4) (Flex 2-15/
Flex 2-15D)
M2.5 × 4.5 mm, flat-head, 
nylok-coated (Flex 2-15/
Flex 2-15D)
M2.0 × 3.5 mm, flat-head, 
nylok-coated (Flex 2-15/
Flex 2-15D)Silver
Silver
Silver
Black18~2.0 kgfcm
3.0+/-0.3 kgfcm
3.0+/-0.3 kgfcm
1.85+/-0.15 kgfcm
a
aa
a
a
a 
						

							Lenovo Flex 2-14/Flex 2-14D/Flex 2-15/Flex 2-15D
55
Figure 10. Removal steps of LCD unit (continued)
Detach the LCD unit from the upper case. 
						

							Lenovo Flex 2-14/Flex 2-14D/Flex 2-15/Flex 2-15D Hardware Main-
tenance Manual
561110 Speakers, base cover, IO board, DC-IN, power board and 
ODD transfer board
For access, remove these FRUs in order:
 “1010 Keyboard” on page 34
 “1020 Optical drive” on page 36
 “1030 Hard disk drive(HDD)/Memory/Mini PCI Express Card slot 
compartment cover” on page 37
 “1040 Battery pack” on page 39
 “1050 Hard disk drive” on page 40
 “1060 DIMM” on page 42
 “1070 PCI Express Mini Card for wireless LAN/WAN” on page 43
 “1080 Fan assembly and Heat Sink assembly” on page 45
 “1090 System board” on page 49
 “1100 LCD unit” on page 53
Figure 11. Speakers, base cover, IO board, DC-IN, power board and ODD transfer board
Remove screws  , and then remove the speakers in the direction shown by 
arrows .
Flex 2-15/Flex 2-15 D:
ab
a
b
ab