Lenovo G50 Manitenance Manual

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Lenovo G50-70/G50-70m/Z50-70
Table 1. Specifications (continued)
FeatureDescription
Keyboard•	 6	rows	Lenovo	KeyboardTouchpad	•	 Multi-touch	typeIntegrated	camera•	 HD	(720p)/0.3	M
Battery•	 4	cell,	2,200	mAh	/	2,800	mAhAC	adapter•	 20	V,	65	W	or	45	WPre-installed	operating	system	•	 Windows	8.1 

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G50-70/G50-70m/Z50-70 Hardware Maintenance Manual
Status indicators
The	system	status	indicators	below	show	the	computer	status:

Table 2. Status indicators
IndicatorIndicatorstatusChargestatusMeaning
1
Power
On	(solid	white)---The	computer	is	powered	on.Blinking---The	computer	is	in	sleep	mode.
Off---The	computer	is	powered	off.
2
Battery
On	(solid	white)ChargingThe	battery	has	more	than	80%	charge.
DischargingThe	battery	has	more	than	20%	charge.
On	(solid	amber)DischargingThe	battery	has	between...

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Lenovo G50-70/G50-70m/Z50-70
Hotkeys
You	can	access	certain	system	settings	quickly	by	pressing	the	appropriate
hotkeys.
Table 3. Hotkeys
	:Mutes/unmutes	the	sound.
:Decreases	the	volume	level.
:Increases	the	volume	level.
:Closes	the	currently	active	window.
:Refreshes	the	desktop	or	the	currently	active	window.
:Enables/disables	the	touchpad.
:Enables/disables	Airplane	mode.
:Displays	all	currently	active	apps.
:Turns	on/off	the	backlight	of	the	LCD	screen.
:Toggles	the	display	 between	 the...

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G50-70/G50-70m/Z50-70 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	connections.
•	They	do	not	easily	come	loose,	even	with	shock	or	vibration.
•	They...

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Lenovo G50-70/G50-70m/Z50-70
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	notices”	on	page	30.
3.	 Begin	by	removing	 any	FRUs	 that	have	 to	be...

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G50-70/G50-70m/Z50-70 Hardware Maintenance Manual
1010 Battery pack
 DANGER
Only use the battery specified in the parts list for your computer. Any other battery 
could ignite or explode. 
Figure 1. Removal steps of battery pack
Unlock	the	manual	 latch	1.	Slide	 the	spring-loaded	 latch	to	the	 unlocked 	position	2	to	 eject	 the	battery	 pack.	Lift	up	the	 inner	 edge	 of	the	 battery	 pack,	pivoting	 it	on	 the	 outer	 edge	3.	Gently	 raise	the	battery	 pack	in	the	 indicated	direction	4	to	remove...

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Lenovo G50-70/G50-70m/Z50-70
1020 Base cover
For	access,	remove	this	FRU:
•	“1010	Battery	pack”	on	page	32
Figure 2. Removal steps of base cover 
Remove	the	screws	1.	Then	remove	the	base	cover	2.




StepScrew (quantity)ColorTorque
1M2.5	×	6	mm,	flat-head,	nylok-coated	(3)	Big	Door	to	DBlack2.5	~	3.0	kgf*cm 

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G50-70/G50-70m/Z50-70 Hardware Maintenance Manual
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 	
label:	
The	following	 labels	need	to	be	peeled 	off	from	the	old	 base	cover	 and	put	on	
the	new	base	cover.	
a	 Rating	label
b	 Indonesia	 D	side	label
c	 Brazil	BT	label
d	 Brazil	WL 	label
e	 Israel	WL	label
f	 SIRIM	BT 	labelg	 SIRIM	WL 	label
h...

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Lenovo G50-70/G50-70m/Z50-70
1030 Optical drive
For	access,	remove	this	FRU:
•	“1010	Battery	pack”	on	page	32•	“1020	Base	cover”	on	page	33
Figure 3. Removal steps of optical drive
Remove	the	screw	1.	Pull	 the	optical	 drive	out	in	the	 direction	 shown	by		arrow	2.	


StepScrew (quantity)ColorTorque
1M2	×	6	mm,	flat-head,	nylok-coated	(1)ODD	BRK	+	DBlack1.5	~	2.0	kgf*cm
Remove	 the	screw	3,	then	 remove	 the	optical	 drive	bracket	 in	the	 direction 	shown	by	arrow	4.
3
4
StepScrew...

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G50-70/G50-70m/Z50-70 Hardware Maintenance Manual
1040 Hard disk drive
For	access,	remove	these	FRUs	in	order:
•	“1010	Battery	pack”	on	page	32•	“1020	Base	cover”	on	page	33
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...