Lenovo Edge 2 User Guide

17
Important service information
Use the following strategy to prevent unnecessary expense for replacing and 
servicing FRUs:
• If you are instructed to replace an FRU, but the replacement does not solve 
the problem, reinstall the original FRU before you continue.
•  Some computers have both a processor board and a system board. If you 
are instructed to replace either of them, and replacing one of them does not 
solve the problem, reinstall that board, and then replace the other one.\
 
•  If an...

18
Important information about replacing RoHS compliant FRUs
RoHS, The Restriction of Hazardous Substances in Electrical and 
Electronic Equipment Directive (2002/95/EC) is a European Union legal 
requirement affecting the global electronics industry. RoHS requirements 
must be implemented on Lenovo products placed on the market after 
June 2006. Products on the market before June 2006 are not required to 
have RoHS compliant parts. If the original FRU parts are non-compliant, 
replacement parts can also...

19
General checkout 
General checkout 
This chapter presents the following information:
• “What to do first” on page 20
•  “Power system checkout” on page 21
Before you go to the checkout, make sure to read the following important\
 notes:
Important notes:
•	 Only	certified	trained	personnel	can	service	the	computer.
•	 Before	 replacing	 any	FRU,	 read	the	 entire	 page	on	removing	 and	replacing 	
FRUs.
•	 Carefully	remove	screws	for 	reuse	when	replacing	FRUs.
•	 Be	 extremely	 careful	during	such...

20
What to do first
When you do return an FRU, you must include the following information in the 
parts exchange form or parts return form that you attach to it:
1. Name and phone number of servicer
2.  Date of service
3.  Date on which the machine failed
4.  Date of purchase
5.  Procedure index and page number in which the failing FRU was detected 
6.  Failing FRU name and part number
7.  Machine type, model number, and serial number
8.  Customer’s name and address
Note for warranty:  During the...

21
General checkout 
Power system checkout
To verify a symptom, follow the steps below:
1. Turn off the computer.
2.  Connect the AC adapter.
3.  Make sure that power is supplied when you turn on the computer.
4.  Turn off the computer.
5.  Disconnect the AC adapter.
6.  Make sure that the battery pack supplies power when you turn on the 
computer.
If you suspect a power problem, see the appropriate power supply checkou\
t:
•  “Checking the AC adapter” on page 21
•  “Checking operational charging” on...

22
Perform operational charging. If the battery status indicator or icon is\
 not lit, 
remove the battery pack and let it return to room temperature. Reinstall\
 the 
battery pack. If the charge indicator or icon is still off, replace the battery pack.
If the charge indicator is still not lit, replace the system board.
Lenovo Edge 2 15 Hardware Maintenance Manual  

23
Related service information
Related service information
This chapter presents the following information:
• “Restoring the factory contents by using OneKey Recovery” on page \
23
•  “Passwords” on page 24
•  “Power management” on page 25
 Restoring the factory contents by using OneKey Recovery
Restore of factory default
The Lenovo Edge 2 15 computer comes with pre-installed OneKey Recovery 
System.In  order  to  save  application  files  and  the  initial  backed  up  files  of  the 
system, the hard...

24
Passwords
As many as three passwords may be needed for any Lenovo computer: the 
power-on password (POP), the hard disk password (HDP), and the supervisor 
password.
If any of these passwords has been set, a prompt for it appears on the screen 
whenever the computer is turned on. The computer does not start until the 
password is entered.
Power-on password
A power-on password (POP) protects the system from being powered on by 
an unauthorized person. The password must be entered before an operating...

25
Related service information
Power management
Note: Power management modes are not supported for an APM operating 
system.
To reduce power consumption, the computer has two power management 
modes: screen blank and sleep (standby).
Screen blank state
If the time set on the “Turn off monitor” timer in the operating system expires, 
the LCD backlight turns off. You can also turn off the LCD backlight by   
pressing 
.
To end screen blank state and resume normal operation, press .
Putting the computer to...

26
Shutting down the computer
f you are not going to use your computer for a long time, shut it down.To shut 
down the computer, do one of the following:
• Move the cursor to the lower-left corner, and then select the Start button. 
Select  Power 
 → Shut down .
• Right-click the Start button in the lower-left corner and select Shut do\
wn or 
sign out → Shut down.
Lenovo Edge 2 15 Hardware Maintenance Manual