Lenovo Ideapad 100 15iby User Guide

Chapter 4. Troubleshooting
27
Sound problems
No sound can be heard 
from the speaker even 
when the volume is turned 
up.•Make sure that:
- The Mute function is off.
- The combo audio jack is not being used.
- Speakers are selected as the playback device.
Battery pack problems
Your computer shuts down 
before the battery status 
indicator shows empty.
-or-
Your computer operates 
after the battery status 
indicator shows empty.•Discharge and recharge the battery pack.
The computer does not 
operate with...

28
Chapter 4. Troubleshooting
Other problems
Your computer does not 
respond.•To turn off your computer, press and hold the Power button 
for four seconds or more. If the computer still does not 
respond, remove the AC power adapter.
•Your computer might lock when it enters sleep mode during 
a communication operation. Disable the sleep timer when 
you are working on the network.
The computer does not 
start from a device you 
want.•See the Boot menu of the BIOS setup utility. Make sure that 
the BIOS...

29
Appendix A. CRU instructions
Removing the keyboard   - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
To remove the keyboard, do the following:
1Turn off the computer. Disconnect the AC power adapter and all cables from the computer.
2Close the computer display, and then turn the computer over.
3Remove the screws that secure the keyboard  .
Lenovo ideapad 100-14IBY
Lenovo ideapad...

30
Appendix A. CRU instructions
6Loosen the keyboard with fingers  , and then lift the keyboard slightly  .
Lenovo ideapad 100-14IBY
Lenovo ideapad 100-15IBY
bc
3
2
2
3
2
2 

Appendix A. CRU instructions
31 7
Disconnect the keyboard connector in the direction shown by arrows   and  . Then 
remove the keyboard.
Lenovo ideapad 100-14IBY
Lenovo ideapad 100-15IBY
de
45
45 

32
Appendix A. CRU instructions
Removing the optical drive (Lenovo ideapad 100-15IBY)  
- - - - - - - - - - - - - - - - - - - 
To remove the optical drive, do the following:
1Remove the keyboard. For details, see  “Removing the keyboard” on page 29.
2Remove the screw shown in the illustration  .
3Gently pull the optical drive out  .
4Remove the screw  , then remove the optical drive bracket in the direction shown by 
arrow .
a
b
2
1
c
d
34 

Appendix A. CRU instructions
33 5
Carefully remove the optical drive bezel in the direction shown by arrow  .
The following table provides a list of CRUs (Customer Replaceable Units) for your computer 
and informs you of where to find replacement instructions.
Safety, Warranty, 
and Setup GuideUser Guide
AC power adapter O
Keyboard O
Optical drive
(Lenovo ideapad 100-15IBY)Oe
5 

34
Trademarks
The following terms are trademarks or registered trademarks of Lenovo in the United States, 
other countries, or both.
Lenovo
OneKey
ideapad
Microsoft and Windows are trademarks of Microsoft Corporation in the United States, other 
countries, or both.
Other company, products, or service names may be trademarks or service marks of others. 

en-US
Rev. AA00
©Lenovo China 2015