Lenovo Ideapad 110 Touch 15acl 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...

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
Note:The CRU service is only applicable to certain countries.
Removing the optical drive   
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
To remove the optical drive, do the following:
1Turn off the computer. Disconnect the AC powe r adapter and all cables from the computer.
2Close the computer display, and then turn the computer over.
3Remove the screw shown in the...

30
Appendix A. CRU instructions
6Carefully 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 fi nd replacement instructions.
Safety, Warranty, and Setup  Guide User Guide
AC power adapter O
Optical drive O 

31
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. 

©Lenovo China 2016
en-US
Rev. AA00