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Lenovo Flex 3 Service Manual

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    Page 51

    Page 51 47 Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475/Flex 3-1570/Flex 3-1570 (HSW)/Flex 3-1535 1090 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... 
    47
Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475/Flex 3-1570/Flex 3-1570 (HSW)/Flex 3-1535
1090 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...

    Page 52

    Page 52 48 Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475/Flex 3-1570/ Flex 3-1570 (HSW)/Flex 3-1535 Hardware Maintenance Manual Figure 9. Removal steps of system board (continued) Flex 3-1570/Flex 3-1570 (HSW)/Flex 3-1535 12 When installing: Make sure that the connector is attached firmly. Remove the screws 3. Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475 3 3 3 3 3 
    48
Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475/Flex 3-1570/
Flex 3-1570 (HSW)/Flex 3-1535 Hardware Maintenance Manual
Figure 9. Removal steps of system board (continued)
Flex 3-1570/Flex 3-1570 (HSW)/Flex 3-1535
12
When installing:	Make	sure	that	the	connector	is	attached	firmly.
Remove	the	screws	 3.
Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475
3
3
3
3
3

    Page 53

    Page 53 49 Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475/Flex 3-1570/Flex 3-1570 (HSW)/Flex 3-1535 Figure 9. Removal steps of system board (continued) Flex 3-1570/Flex 3-1570 (HSW)/Flex 3-1535 33 3 33 33 StepScrew (quantity) ColorTorque 3M2.0 × 4.0 mm, Phillips head, nylok-coated (5) Hinge to UCASE (Flex 3-1470/Flex 3-1470 (HSW)/ Flex 3-1435/Flex 3-1475) Black 2.0 kgf*cm 3M2.5 × 4.0 mm, Phillips head, nylok-coated (7) Hinge to UCASE (Flex 3-1570/Flex 3-1570 (HSW)/ Flex 3-1535) Silver 2.5 kgf*cm Open... 
    49
Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475/Flex 3-1570/Flex 3-1570 (HSW)/Flex 3-1535
Figure 9. Removal steps of system board (continued)
Flex 3-1570/Flex 3-1570 (HSW)/Flex 3-1535
33
3
33
33
StepScrew (quantity) ColorTorque
3M2.0	×	4.0	mm,	Phillips	head,	nylok-coated	(5)		
Hinge	to	UCASE	(Flex	3-1470/Flex	3-1470	(HSW)/
Flex	3-1435/Flex	3-1475) Black
2.0	kgf*cm
3M2.5	×	4.0	mm,	Phillips	head,	nylok-coated	(7)		
Hinge	to	UCASE	(Flex	3-1570/Flex	3-1570	(HSW)/
Flex	3-1535) Silver
2.5	kgf*cm
Open...

    Page 54

    Page 54 50 Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475/Flex 3-1570/ Flex 3-1570 (HSW)/Flex 3-1535 Hardware Maintenance Manual Figure 9. Removal steps of system board (continued) Flex 3-1570/Flex 3-1570 (HSW)/Flex 3-1535 4 4 4 Disconnect the DC-in cable in the direction shown by arrow 5. Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475 5 
    50
Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475/Flex 3-1570/
Flex 3-1570 (HSW)/Flex 3-1535 Hardware Maintenance Manual
Figure 9. Removal steps of system board (continued)
Flex 3-1570/Flex 3-1570 (HSW)/Flex 3-1535
4
4
4
Disconnect	the	DC-in	cable	in	the	direction	shown	by	arrow	5.
Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475
5

    Page 55

    Page 55 51 Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475/Flex 3-1570/Flex 3-1570 (HSW)/Flex 3-1535 Figure 9. Removal steps of system board (continued) Flex 3-1570/Flex 3-1570 (HSW)/Flex 3-1535 5 When installing: Make sure that the connector is attached firmly. Remove the DC-in cable in the direction shown by arrows 6. Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475 6 6 
    51
Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475/Flex 3-1570/Flex 3-1570 (HSW)/Flex 3-1535
Figure 9. Removal steps of system board (continued)
Flex 3-1570/Flex 3-1570 (HSW)/Flex 3-1535
5
When installing: 	Make	sure	that	the	connector	is	attached	firmly.
Remove	the	DC-in	cable	in	the	direction	shown	by	arrows	 6.
Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475
6
6

    Page 56

    Page 56 52 Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475/Flex 3-1570/ Flex 3-1570 (HSW)/Flex 3-1535 Hardware Maintenance Manual Figure 9. Removal steps of system board (continued) Flex 3-1570/Flex 3-1570 (HSW)/Flex 3-1535 6 6 Disconnect the connectors in the direction shown by arrows 7, 8 and 9 . Remove the screws j. Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475 10 10 7 8 9 89 
    52
Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475/Flex 3-1570/
Flex 3-1570 (HSW)/Flex 3-1535 Hardware Maintenance Manual
Figure 9. Removal steps of system board (continued)
Flex 3-1570/Flex 3-1570 (HSW)/Flex 3-1535
6
6
Disconnect	the	connectors	 in	the 	direction 	shown 	by	 arrows	
7,	
8 	
and 	
9 .	
Remove	the	screws	 j.
Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475
10
10
7
8
9
89

    Page 57

    Page 57 53 Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475/Flex 3-1570/Flex 3-1570 (HSW)/Flex 3-1535 Figure 9. Removal steps of system board (continued) Flex 3-1570/Flex 3-1570 (HSW)/Flex 3-1535 7 89 889 9 10 10 StepScrew (quantity) ColorTorque jM2.0 × 2.5 mm, Phillips head, nylok-coated (2) M/B to U case Silver/ Black2.0 kgf*cm When installing: Make sure that the connectors are attached firmly. Remove the system board k. Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475 11 
    53
Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475/Flex 3-1570/Flex 3-1570 (HSW)/Flex 3-1535
Figure 9. Removal steps of system board (continued)
Flex 3-1570/Flex 3-1570 (HSW)/Flex 3-1535
7
89
889
9
10
10
StepScrew (quantity) ColorTorque
jM2.0	×	2.5	mm,	Phillips	head,	nylok-coated	(2)	
M/B	to	U	case Silver/
Black2.0	kgf*cm
When installing:
	Make	sure	that	the	connectors	are	attached	firmly.
Remove	the	system	board	 k.
Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475
11

    Page 58

    Page 58 54 Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475/Flex 3-1570/ Flex 3-1570 (HSW)/Flex 3-1535 Hardware Maintenance Manual Figure 9. Removal steps of system board (continued) Flex 3-1570/Flex 3-1570 (HSW)/Flex 3-1535 11 
    54
Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475/Flex 3-1570/
Flex 3-1570 (HSW)/Flex 3-1535 Hardware Maintenance Manual
Figure 9. Removal steps of system board (continued)
Flex 3-1570/Flex 3-1570 (HSW)/Flex 3-1535
11

    Page 59

    Page 59 55 Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475/Flex 3-1570/Flex 3-1570 (HSW)/Flex 3-1535 1100 Touchpad module and upper case For access, remove these FRUs in order: • “1010 Base cover ” on page 32 • “1020 Battery pack” on page 35 • “1030 Hard disk drive ” on page 37 • “1040 PCI Express Mini Card for wireless LAN ” on page 40 • “1060 IO board ” on page 43 • “1070 Speakers ” on page 44 • “1080 Fan assembly and Heat Sink assembly ” on page 45 • “1090 System board ” on page 47 Figure 10.... 
    55
Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475/Flex 3-1570/Flex 3-1570 (HSW)/Flex 3-1535
1100 Touchpad module and upper case
For	access,	remove	these	FRUs	in	order:	
•	“1010	Base	cover ”	on	page	32
•	 “1020	Battery	pack”	on	page	35
•	 “1030	Hard	disk	drive ”	on	page	37
•	 “1040	PCI	Express	Mini	Card	for	wireless	LAN ”	on	page	40
•	 “1060	IO	board ”	on	page	43
•	 “1070	Speakers ”	on	page	44
•	 “1080	Fan	assembly	and	Heat	Sink	assembly ”	on	page	45
•	 “1090	System	board ”	on	page	47
Figure 10....

    Page 60

    Page 60 56 Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475/Flex 3-1570/ Flex 3-1570 (HSW)/Flex 3-1535 Hardware Maintenance Manual Figure 10. Removal steps of touchpad module and upper case (continued) Flex 3-1570/Flex 3-1570 (HSW)/Flex 3-1535 212 StepScrew (quantity) ColorTorque 2M2.0 × 2.5 mm, Phillips head, nylok-coated (2) TP Bracketr to U case Black 2.0 kgf*cm 
    56
Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475/Flex 3-1570/
Flex 3-1570 (HSW)/Flex 3-1535 Hardware Maintenance Manual
Figure 10. Removal steps of touchpad module and upper case (continued)
Flex 3-1570/Flex 3-1570 (HSW)/Flex 3-1535
212
StepScrew (quantity) ColorTorque
2M2.0	×	2.5	mm,	Phillips	head,	nylok-coated	(2)	
TP	Bracketr	to	U	case Black
2.0	kgf*cm
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