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
Table 1. Specifications (continued)
Feature Description
Audio •	 1/8"	Combo	audio	jack
•	 1.5	W	speakers	×	2
•	 Single/Array	Digital	MIC
Ethernet	(on	the	
system	board)	 •	 1,000	Mbps
Bluetooth	
wireless	 •	 Combined	in	combo	card
Keyboard •	 6	row	ISO	full	size	keyboard
Touchpad	 •	 Multi-touch	type
Integrated	
camera •	 HD/0.3	M
Battery •	 3	cells	/	2	cells,	45	Wh	/	30	Wh
AC	adapter •	 DIS	65	W,	UMA...

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Flex 3-1570 (HSW)/Flex 3-1535 Hardware Maintenance Manual
Status indicators
The	system	status	indicators	below	show	the	computer	status:
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Table 2. Status indicators
IndicatorIndicator
status Meaning
1  Battery	status	indicator
On	(solid	white) The	battery	has	more	than	20%	
charge.
On	 (solid	 amber) The	battery	has	between	5%	and	
20%	charge.
Blinking	quickly	
(amber) The	battery	has	less	than	5%	
charge.
Blinking	slowly	
(amber)...

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Fn key combinations/Hotkeys
The	following	 table	shows	 the	function 	of	 each	 combination	 of	Fn	 with	 a	
function	key.
Table 3. Fn key combinations
Lenovo Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475
Fn + Home: Activates	the	pause	function.
Fn + End: Activates	the	break	function.
Fn + PgUp : Enables/disables	the	scroll	lock.
Fn + PgDn : Activates	the	insert	function.
Fn + Space   
(on select...

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Flex 3-1570 (HSW)/Flex 3-1535 Hardware Maintenance Manual
FRU replacement notices
This	section 	presents	 notices	related	to	removing	 and	replacing	 parts.	Read	
this	section	carefully	before	replacing	any	FRU.
Screw notices 
Loose	 screws	 can	cause	 a	reliability	 problem.	In	the	 Lenovo	 computer,	 this	
problem	 is	addressed	 with	special	 nylon-coated	 screws	that	have	 the	following	
characteristics:
•	 They	maintain	tight...

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Removing and replacing an FRU
This	section	 presents	 exploded	 figures	with	the	instructions	 to	indicate	 how	to	
remove	 and	replace	 the	FRU. 	Make	 sure	to	observe	 the	following	 general	rules:
1.	 Do	 not	attempt	 to	service	 any	computer	 unless	you	have	 been	 trained	 and	
certified.	 An	untrained	person	runs	the	risk	of	damaging	parts.
2.	 Before	replacing 	any	FRU,	review	“FRU	replacement...

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1010 Base cover
Figure 1. Removal steps of base cover 
Remove	the	screws	1.
Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475
1
1
11
1
1
1
11
1
Flex 3-1570/Flex 3-1570 (HSW)/Flex 3-1535
1
1
11
1
1
1
1
1
1
1
Step
Screw (quantity) ColorTorque
1M2.0	×	6.0	 mm, 	Phillips	 head,	nylok-coated	 (10)	
LCASE	to	UCASE	(Flex	3-1470/	
Flex	3-1470	(HSW)/Flex	3-1435/Flex	3-1475) Black
2.0...

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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 1. Removal steps of base cover (continued)
Remove	the	base	cover	in	the	directions	shown	by	arrows	 2	and	
3.
Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475
32
2
Flex 3-1570/Flex 3-1570 (HSW)/Flex 3-1535
32
2 

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Note: Applying labels to the base cover
The	new	 base	 cover	 FRU	is	shipped	 with	a	kit	 containing	 labels	of	several 	
kinds.	When	you	replace	the	base	cover,	you	need	to	apply	the	following	labels:	
The	following	 labels	need	to	be	peeled 	off	from	the	old	 base	cover	 and	put	on	
the	new	base	cover.	
a	 Barcode	label	b	 Rating	labelc	 GML 	label	d	 BT	label	(for	US/CA/TW)e...

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1020 Battery pack
For	access,	remove	this	FRU:
•	“1010	Base	cover ”	on	page	32
 DANGER
Only use the battery specified in the parts list for your computer. Any other battery 
could ignite or explode. 
Figure 2. Removal steps of battery pack
Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475
Disconnect	the	FPC	 connector	 in	the	 direction	 shown	by	arrows	
1	
and	
2.	
Unplug	 the	battery	 connector	 in...

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Figure 2. Removal steps of battery pack (continued)
Flex 3-1570/Flex 3-1570 (HSW)/Flex 3-1535
Unplug	the	battery	 connector	 in	the	 direction	 shown	by	arrow	
1,	
then	 remove	
the	screws	 2.	Remove	the	battery	pack	
3.
1
223
Step
Screw (quantity) ColorTorque
2M2.0	×	2.5	mm,	Phillips	head,	nylok-coated	(2)	
Battery	to	UCASE	(Flex	3-1570/	
Flex	3-1570	(HSW)/Flex	3-1535)	 Black...