Lenovo Flex 3 Service Manual

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Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475/Flex 3-1570/Flex 3-1570 (HSW)/Flex 3-1535
1030 Hard disk drive
For	access,	remove	these	FRUs	in	order:
•	“1010	Base	cover ”	on	page	32
•	 “1020	Battery	pack”	on	page	35
Attention: 
•	 Do	 not	drop	 the	hard	 disk	drive	 or	apply	 any	physical	 shock	to	it. The hard 
disk drive is sensitive to physical shock. Improper handling can cause damage and 
permanent loss of data.
•  Before removing the drive, suggest the customer to backup all the information on 
it if possible.
•  Never remove the drive while the system is operating or in suspend mode.
Figure 3. Removal steps of hard disk drive
Remove	the	three	screws	
1.	Pull	the	hard	disk	driver	in	the	direction	shown	by	
arrow	 2.	
Then	remove	the	hard	disk	drive.
Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475
1
1
1
2 
						

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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 3. Removal steps of hard disk drive (continued)
Flex 3-1570/Flex 3-1570 (HSW)/Flex 3-1535
11
1
2
StepScrew (quantity) ColorTorque
1M2.0	×	2.5	mm,	Phillips	head,	nylok-coated	(3)	
HDD	Brkt	to	UCASE Black
2.0	kgf*cm
When installing: 	Make	sure	that	the	HDD	connector	is	attached	firmly.	 
						

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Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475/Flex 3-1570/Flex 3-1570 (HSW)/Flex 3-1535
Figure 3. Removal steps of hard disk drive  (continued)
Peel	off	the	hard	disk	drive	mylar	label	in	the	direction	shown	by	arrow	 3.	
Remove	the	screws	 4	and	detach	the	metal	frame	from	the	hard	disk	drive.	
Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475
3
4
4
4
4
Flex 3-1570/Flex 3-1570 (HSW)/Flex 3-1535
34
4
4
4
Step
Screw (quantity) ColorTorque
4M3.0	×	4.0	mm,	Phillips	head,	nylok-coated	(4)	
HDD	Brkt	to	HDD Silver
2.5	kgf*cm 
						

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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
1040 PCI Express Mini Card for wireless LAN
For	access,	remove	these	FRUs	in	order:
•	“1010	Base	cover ”	on	page	32
•	 “1020	Battery	pack”	on	page	35
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.
2
11
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.
Step
Screw (quantity) ColorTorque
2M2.0	×	2.5	mm,	Phillips	head,	nylok-coated	(1)		
NGFF	to	MB Black
2.0	kgf*cm 
						

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Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475/Flex 3-1570/Flex 3-1570 (HSW)/Flex 3-1535
Figure 4. Removal steps of PCI Express Mini Card for wireless LAN (continued) 	
Remove	the	card	in	the	direction	shown	by	arrow	 3.
3
When installing:
•	
In	 models	 with	a	wireless	 LAN	card	 that	has	two	antenna	 connectors,	 plug	
the	 black	 cable	 (1st)	(MAIN)	 into	the	jack	 labeled	 MAIN,	and	 the	white	 cable	
(2nd)	(AUX)	into	the	jack	labeled	 AUX	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	
the	 jack	 labeled	 3,	and	 the	white	 cable	 (2nd)	(AUX)	 into	the	jack	 labeled	 2	on	
the	card. 
						

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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
1050 DIMM
For	access,	remove	these	FRUs	in	order:	
•	“1010	Base	cover ”	on	page	32
•	 “1020	Battery	pack”	on	page	35
Figure 5. Removal steps of DIMM 
Release 	the	 two	latches	 on	both 	edges	 of	the	 socket	 at	the	 same	 time	in	 the 	
directions	 shown	by	arrows	
1,	
and	 then	 unplug	 the	DIMM	 in	the	 direction 	
shown	by	arrow	 2.
11
2
When installing:
	Insert	 the	notched	 end	of	the	 DIMM	 into	the	socket.	 Push	the	
DIMM	firmly,	and	 pivot	it	until	it	snaps	into	place.	 Make	sure	 that	it	is	firmly	fixed	
in	the	slot	and	is	difficult	to	move. 
						

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Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475/Flex 3-1570/Flex 3-1570 (HSW)/Flex 3-1535
1060 IO board
For	access,	remove	these	FRUs	in	order:	
•	“1010	Base	cover ”	on	page	32
•	 “1020	Battery	pack”	on	page	35
Figure 6. Removal steps of IO board
Detach	 the	LED	 board	 connector	 in	the	 directions	 shown	by	arrows	
1	
and	
2.	
Remove	the	screw	 3.
123
Step
Screw (quantity) ColorTorque
3M2.0	×	4.0	mm,	Phillips	head,	nylok-coated	(1)		
IO	to	Hinge	to	U	case	(Flex	3-1470/	
Flex	3-1470	(HSW)/Flex	3-1435/Flex	3-1475) Black
2.0	kgf*cm
3M2.0	×	2.5	mm,	Phillips	head,	nylok-coated	(1)	
IO	to	U	case	(Flex	3-1570/Flex	3-1570	(HSW)/
Flex	3-1535) Black
2.0	kgf*cm
Remove	the	LED	board	in	the	direction	shown	by	arrow	
4.
4
When installing:
	Make	sure	that	the	connector	is	attached	firmly. 
						

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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
1070 Speakers
For	access,	remove	these	FRUs	in	order:
•	“1010	Base	cover ”	on	page	32
•	 “1020	Battery	pack”	on	page	35
Figure 7. Removal steps of speakers
Detach	the	connector	in	the	direction	shown	by	arrow	 1.
1
Remove	the	speakers	in	the	direction	shown	by	arrows	
2.
2
2
When installing:
	Make	sure	that	the	connector	is	attached	firmly. 
						

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Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475/Flex 3-1570/Flex 3-1570 (HSW)/Flex 3-1535
1080 Fan assembly and Heat Sink assembly
For	access,	remove	these	FRUs	in	order:
•	“1010	Base	cover ”	on	page	32
•	 “1020	Battery	pack”	on	page	35
Figure 8. Removal steps of fan assembly and heat sink assembly
Unplug	 the	fan	connector	 in	the	 direction	 shown	by	arrow	
1.	
Loosen	 the	five	
screws 	
2 .	Release	the	cables	from	the	cable	guides	
3.	
22222
1
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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 8. Removal steps of fan assembly and heat sink assembly (continu\
ed)
Remove	the	Fan	and	Heat	Sink	in	the	direction	shown	by	arrow	4.
4
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	connector	is	attached	firmly.
ab
When installing:
Before	 you	attach	 the	fan	assembly	 to	the	 computer,	 apply	thermal	 grease,	
at	 an	 amount	 of	0.2	 grams,	 to	the	
		part	 shown	 in	the	 figure	 above.	 Either	
too	 much	 or	too	 less	 grease	 application	 can	cause	 a	thermal	 problem	 due	to	
imperfect	contact	with	a	component.