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Lenovo ThinkPad Yoga 14 (English) User Guide - ThinkPad Yoga 14 - Page 110

Battery and power problems, Battery problems - charger

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• Problem: When you connect a headphone to your computer while playing sound, a speaker does not produce sound in the MULTI-STREAM mode at Conexant HD Audio Manager. Solution: Once the headphone is attached, the streaming is automatically redirected to it. If you want to listen to sound from the speakers again, be sure to set those speakers as the default device. The procedure is as follows: 1. Open Control Panel. Click Hardware and Sound. 2. Click the Conexant HD Audio Manager icon. The Conexant HD Audio Manager window opens. 3. Look at the tabs of playback devices. If you have attached a headphone, the headphone will be automatically set as the default device, and the headphone tab icon will be checked. 4. To set a different device as the default, click the speaker tab. Click the Set Default Device drop down list box. Select Set Default Device. That speaker tab icon will now have a check mark. 5. Play any sound by use of a music program such as Windows Media Player. Ensure that sound comes from the speakers. For details, refer to the help information system for Conexant HD Audio Manager. Battery and power problems This topic contains instructions on troubleshooting battery and power problems. Battery problems • Problem: The built-in battery cannot be fully charged in the standard charge time when the computer is powered off. Solution: The battery might be over-discharged. Do the following: 1. Turn off the computer. 2. Connect the ac power adapter to the computer and let it charge. If a quick charger is available, use it to charge the over-discharged built-in battery. If the built-in battery cannot be fully charged in 24 hours, call Lenovo Customer Service Center to have it serviced. • Problem: Your computer shuts down before the battery-status icon shows that the battery is empty, or the computer operates after the battery-status icon shows that the battery is empty. Solution: Discharge and recharge the built-in battery. • Problem: The operating time for a fully charged built-in battery is short. Solution: Discharge and recharge the built-in battery. If your battery operating time is still short, call Lenovo Customer Service Center to have it serviced. • Problem: The computer does not operate with a fully charged built-in battery. Solution: The surge protector in the built-in battery might be active. Turn off the computer for one minute to reset the protector; then turn on the computer again. • Problem: The built-in battery cannot be charged. Solution: You cannot charge the battery when it is too hot. Turn off the computer and allow it to cool to room temperature. After it cools, recharge the battery. If it still cannot be charged, call Lenovo Customer Service to have it serviced. 94 User Guide

Section	Page
Read this first	7
Important safety information	8
Conditions that require immediate action	9
Safety guidelines	9
Chapter 1. Product overview	17
Locating computer controls, connectors, and indicators	17
Front view	17
Right-side view	18
Left-side view	20
Bottom view	21
Rear view	22
Status indicators	22
Locating important product information	23
Machine type and model label	23
FCC ID and IC Certification information	24
Certificate of Authenticity label	25
Genuine Microsoft label	25
Features	26
Specifications	27
Operating environment	28
Lenovo programs	28
Accessing Lenovo programs on the Windows 7 operating system	28
Accessing Lenovo programs on the Windows 8.1 operating system	29
An introduction to Lenovo programs	30
Chapter 2. Using your computer	33
Registering your computer	33
Frequently asked questions	33
Using the tablet buttons	36
Using the multi-touch screen	36
Operating modes	39
Enabling the operating modes	39
Rotating the computer display	40
Notebook mode	41
Stand mode	41
Tablet mode	42
Tent mode	44
Using the keyboard	45
Special keys	47
ThinkPad pointing device	49
Using the ThinkPad pointing device	50
Using the trackpad touch gestures	52
Customizing the ThinkPad pointing device	53
Replacing the cap of pointing stick	53
Power management	54
Checking the battery status	54
Using the ac power	55
Charging the battery	55
Maximizing the battery life	56
Managing the battery power	56
Power-saving modes	56
Connecting to the network	57
Ethernet connections	57
Wireless connections	57
Using an external display	60
Connecting an external display	60
Choosing a display mode	61
Changing display settings	61
Using audio features	61
Using the camera	62
Using a flash media card	62
Chapter 3. Enhancing your computer	65
Finding ThinkPad options	65
ThinkPad OneLink Dock	65
ThinkPad OneLink Pro Dock	66
Chapter 4. Security	69
Using passwords	69
Typing passwords	69
Power-on password	69
Supervisor password	70
Hard disk passwords	71
Hard disk security	73
Setting the security chip	74
Notice on deleting data from your storage drive	75
Using firewalls	76
Protecting data against viruses	76
Chapter 5. Advanced configuration	77
Installing a new operating system	77
Installing the Windows 7 operating system	77
Installing the Windows 8.1 operating system	78
Installing device drivers	79
Using the ThinkPad Setup program	79
Main menu	80
Config menu	80
Date and Time menu	83
Security menu	83
Startup menu	88
Restart menu	90
Updating the UEFI BIOS	90
Using system management	90
Chapter 6. Preventing problems	93
General tips for preventing problems	93
Making sure device drivers are current	94
Taking care of your computer	95
Cleaning the cover of your computer	96
Chapter 7. Troubleshooting computer problems	99
Diagnosing problems	99
Troubleshooting	99
Computer stops responding	99
Spills on the keyboard	100
Error messages	100
Errors without messages	102
Beep errors	103
Memory module problems	103
Networking problems	103
Problems with the keyboard and other pointing devices	105
Problems with the display and multimedia devices	106
Battery and power problems	110
Problems with drives and other storage devices	113
A software problem	113
Problems with ports and connectors	114
Chapter 8. Recovery overview	115
Recovery overview for the Windows 7 operating system	115
Creating and using a recovery media	115
Performing backup and recovery operations	116
Using the Rescue and Recovery workspace	117
Creating and using a rescue medium	118
Reinstalling preinstalled applications and device drivers	119
Solving recovery problems	120
Recovery overview for the Windows 8.1 operating system	120
Refreshing your computer	120
Resetting your computer to the factory default settings	121
Using the advanced startup options	121
Recovering your operating system if Windows 8.1 fails to start	121
Creating and using recovery media	121
Chapter 9. Replacing devices	123
Static electricity prevention	123
Disabling the built-in battery	123
Replacing the keyboard	124
Replacing the base cover assembly	128
Replacing the memory module	130
Replacing the storage drive	131
Replacing the wireless LAN card	134
Replacing the button I/O card	136
Replacing the audio/USB/OneLink/ac power card	137
Replacing the speaker assembly	141
Replacing the coin-cell battery	143
Chapter 10. Getting support	147
Before you contact Lenovo	147
Getting help and service	147
Using diagnostic programs	148
Lenovo Support Web site	148
Calling Lenovo	148
Purchasing additional services	149
Chapter 11. You and your computer	151
Accessibility and comfort	151
Ergonomic information	151
Comfort	152
Accessibility information	152
Traveling with your computer	156
Travel tips	156
Travel accessories	157
Appendix A. Regulatory information	159
Wireless related information	159
Location of the UltraConnect wireless antennas	160
Locating wireless regulatory notices	161
Export classification notice	161
Electronic emission notices	161
Federal Communications Commission Declaration of Conformity	161
Industry Canada Class B emission compliance statement	161
European Union - Compliance to the Electromagnetic Compatibility Directive	162
German Class B compliance statement	162
Korea Class B compliance statement	163
Japan VCCI Class B compliance statement	163
Japan compliance statement for products which connect to the power mains with rated current less than or equal to 20 A per phase	163
Lenovo product service information for Taiwan	163
Eurasian compliance mark	163
Brazil regulatory notice	163
Mexico regulatory notice	163
Appendix B. WEEE and recycling statements	165
Important WEEE information	165
Japan recycling statements	165
Recycling information for Brazil	166
Battery recycling information for the European Union	166
Battery recycling information for Taiwan	167
Battery recycling information for the United States and Canada	167
Recycling information for China	167
Appendix C. Restriction of Hazardous Substances Directive (RoHS)	169
European Union RoHS	169
China RoHS	170
Turkish RoHS	171
Ukraine RoHS	171
India RoHS	171
Appendix D. ENERGY STAR model information	173
Appendix E. Notices	175

Match case Limit results 1 per page

•

Problem

: When you connect a headphone to your computer while playing sound, a speaker does not

produce sound in the MULTI-STREAM mode at Conexant HD Audio Manager.

Solution

: Once the headphone is attached, the streaming is automatically redirected to it. If you want

to listen to sound from the speakers again, be sure to set those speakers as the default device. The

procedure is as follows:

1. Open Control Panel. Click

Hardware and Sound

2. Click the

ConexantHDAudioManager

icon. The Conexant HD Audio Manager window opens.

3. Look at the tabs of playback devices. If you have attached a headphone, the headphone will be

automatically set as the default device, and the headphone tab icon will be checked.

4. To set a different device as the default, click the speaker tab. Click the

Set Default Device

drop

down list box. Select

SetDefaultDevice

. That speaker tab icon will now have a check mark.

5. Play any sound by use of a music program such as Windows Media Player. Ensure that sound

comes from the speakers.

For details, refer to the help information system for Conexant HD Audio Manager.

Battery and power problems

This topic contains instructions on troubleshooting battery and power problems.

Battery problems

•

Problem

: The built-in battery cannot be fully charged in the standard charge time when the computer is

powered off.

Solution

: The battery might be over-discharged. Do the following:

1. Turn off the computer.

2. Connect the ac power adapter to the computer and let it charge.

If a quick charger is available, use it to charge the over-discharged built-in battery.

If the built-in battery cannot be fully charged in 24 hours, call Lenovo Customer Service Center to have

it serviced.

•

Problem

: Your computer shuts down before the battery-status icon shows that the battery is empty, or

the computer operates after the battery-status icon shows that the battery is empty.

Solution

: Discharge and recharge the built-in battery.

•

Problem

: The operating time for a fully charged built-in battery is short.

Solution

: Discharge and recharge the built-in battery. If your battery operating time is still short, call

Lenovo Customer Service Center to have it serviced.

•

Problem

: The computer does not operate with a fully charged built-in battery.

Solution

: The surge protector in the built-in battery might be active. Turn off the computer for one minute

to reset the protector; then turn on the computer again.

•

Problem

: The built-in battery cannot be charged.

Solution

: You cannot charge the battery when it is too hot. Turn off the computer and allow it to cool to

room temperature. After it cools, recharge the battery. If it still cannot be charged, call Lenovo Customer

Service to have it serviced.

User Guide