Lenovo Edge 2 User Guide

							37
Lenovo Edge 2 15
Figure 3. Removal steps of hard disk drive (continued)
Remove four screws 
3 and detach the metal frame from the hard disk drive.
c
c
cc
StepScrew (quantity) ColorTorque
3M3.0 × 2.8 mm, flat-head, 
nylokcoated (4) HDD to HDD BRKT Silver
1.85+/-0.15 kgf.cm
When installing:  Make sure that the HDD connector is attached firmly. 
						

							38
1040 PCI Express Mini Card for wireless LAN 
For access, remove these FRUs in order:
• “1010 Base cover” on page 33
•  “1020 Battery pack” on page 35
Important: 
The	 preinstalled	 WLAN	module	 may	only	 be	replaced	 with	a	Lenovo	 approved 	
module	 in	order	 to	comply	 with	FCC	 and	IC	regulations.	 Refer	to	Table	 4	“Parts 	
list—Overall”	on	page	58	for	Lenovo	part	numbers	for	the	approved	modules.
Figure 4. Removal steps of PCI Express Mini Card for wireless LAN 
Disconnect the two wireless LAN cables (black, white) 
1, and then remove the 
screw 2.
b
aa
Step Screw (quantity) ColorTorque
2M2 × 4 mm, flat-head,  
nylok-coated (1) WLAN to Upper Black
1.85+/-0.15 kgf.cm
Remove the card in the direction shown by arrow 3.
c
Lenovo Edge 2 15 Hardware Maintenance Manual  
						

							39
Lenovo Edge 2 15
Figure 4. Removal steps of PCI Express Mini Card for wireless LAN (continued)
In step 
1, unplug the jacks by using the removal tool antenna RF connector  
(P/N:  08K7159),  or  pick  up  the  connectors  with  your  fingers  and  gently  unplug 
them in the direction shown by the arrows.
Notes:  The wireless LAN card has 2 cables in step 
1.
  The wireless LAN card in some models might have 3 cables in step 
1.
When installing:
•  In  models  with  a  wireless  LAN  card  that  has  two  antenna  connectors,  plug 
the black cable (1st) (MAIN) into the jack labeled 1, and the white cable (2nd) 
(AUX) into jack labeled 2 on the card.
•  In  models  with  a  wireless  LAN  card  that  has  three  antenna  connectors,  plug 
the black cable (1st) (MAIN) into the jack labeled 1, the grey cable (3rd) into 
jack labeled 3, and the white cable (2nd) (AUX) into jack labeled 2 on the 
card. 
						

							40
1050 DIMM
For access, remove these FRUs in order:
• “1010 Base cover” on page 33
•  “1020 Battery pack” on page 35
Figure 5. Removal steps of DIMM
Remove the DIMM cover with fingers as shown.
Release the two latches on both edges of the socket at the same time in 
thedirection shown by arrows 
1, and then unplug the DIMM in the direction 
shown by arrow 2.
a
a
b
When installing:  Insert the notched end of the DIMM into the socket. Push the 
DIMM  firmly,  and  pivot  it  until  it  snaps  into  the  place.  Make  sure  that  it  is  firmly 
fixed in the slot and difficult to be moved.
Lenovo Edge 2 15 Hardware Maintenance Manual  
						

							41
Lenovo Edge 2 15
1060 Fan assembly and heat sink assembly
For access, remove these FRUs in order:
• “1010 Base cover” on page 33
•  “1020 Battery pack” on page 35
Figure 6. Removal steps of fan assembly and heat sink assembly
Unplug the fan connector in the direction shown by arrow 
1. Remove the screw 2 and loosen the screws 3. Lift the fan assembly and heat sink assembly in 
the direction shown by arrow 4. Be careful not to damage the connector.
b
cc
cc
c
d
a
StepScrew (quantity) ColorTorque
2M2 × 4 mm, flat-head, nylok-coated 
(1) Thermal module to FAN Silver
1.85+/-0.15 kgf.cm
When installing:  Make sure that the connectors are attached firmly. 
						

							42
1070 LCD unit
For access, remove these FRUs in order:
• “1010 Base cover” on page 33
•  “1020 Battery pack” on page 35
•  “1030 Hard disk drive” on page 36
•  “1040 PCI Express Mini Card for wireless LAN” on page 38
•  “1050 DIMM” on page 40
•  “1060 Fan assembly and heat sink assembly” on page 41
Figure 7. Removal steps of LCD unit
Disconnect the camera cable connector 
1, then disconnect the LCD cable 
2.Remove the screws 3.
cc
ccc
cc
a
b
Step Screw (quantity) ColorTorque
1M2.5 x 4 mm, flat-head,  
nylok-coated (6) Hinge to Upper Black
1.85+/-0.15 kgf.cm
Lenovo Edge 2 15 Hardware Maintenance Manual  
						

							43
Lenovo Edge 2 15
Figure 7. Removal steps of LCD unit (continued)
Open the hinges 
4, then remove the upper case from the LCD unit in the 
direction shown by arrow 
5.
e
d
d 
						

							44
1080 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.
•	 Avoid	rough	handling	of	any	kind.
•	 During	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.
For access, remove these FRUs in order:
•  “1010 Base cover” on page 33
•  “1020 Battery pack” on page 35
•  “1030 Hard disk drive” on page 36
•  “1040 PCI Express Mini Card for wireless LAN” on page 38
•  “1050 DIMM” on page 40
•  “1060 Fan assembly and heat sink assembly” on page 41
•  “1070 LCD unit” on page 42
Lenovo Edge 2 15 Hardware Maintenance Manual  
						

							45
Lenovo Edge 2 15
Figure 8. Removal steps of system board
Remove screws 
1.unplug speakers connectors in the direction shown by arrow 2. Detach keyboard connectors, touch pad connector and IO board connector\
 
in the directions shown by arrows 3 and 4. Unplug DC-IN connector in the 
direction shown by arrow 5.
c d
a
ab
e
When installing:  Make sure that all the connectors are attached firmly
StepScrew (quantity) ColorTorque
1M2 × 4 mm, flat-head,  
nylok-coated (2) MB to Upper Black
1.85+/-0.15 kgf.cm
Remove the system board in the direction shown by arrow 6.
f 
						

							46
1090 Speakers
For access, remove these FRUs in order:
• “1010 Base cover” on page 33
•  “1020 Battery pack” on page 35
•  “1030 Hard disk drive” on page 36
•  “1040 PCI Express Mini Card for wireless LAN” on page 38
•  “1050 DIMM” on page 40
•  “1060 Fan assembly and heat sink assembly” on page 41
•  “1070 LCD unit” on page 42
•  “1080 System board” on page 44
Figure 9. Removal steps of speakers
Lift the speakers in the direction shown by arrows 
1.
a
a
When installing:  Make sure that the connector is attached firmly.
Lenovo Edge 2 15 Hardware Maintenance Manual