Operation Manual
Table Of Contents
- Important safety information
- Read this first
- Important information about using your computer
- Conditions that require immediate action
- Service and upgrades
- Power cords and power adapters
- Extension cords and related devices
- Plugs and outlets
- Power supply statement
- External devices
- General battery notice
- Notice for built-in rechargeable battery
- Notice for non-rechargeable coin-cell battery
- Heat and product ventilation
- Electrical current safety information
- Liquid crystal display (LCD) notice
- Using headphones or earphones
- Choking hazard notice
- Plastic bag notice
- Glass parts notice
- Chapter 1. Product overview
- Chapter 2. Using your computer
- Registering your computer
- Frequently asked questions
- Operating modes
- Using the multi-touch screen
- Using the special keys
- Using the ThinkPad pointing device
- Power management
- Cabled Ethernet connections
- Wireless connections
- Using audio features
- Using the cameras
- Using a media card
- Using an external display
- Traveling with your computer
- Chapter 3. Enhancing your computer
- Chapter 4. Accessibility, ergonomic, and maintenance information
- Chapter 5. Security
- Chapter 6. Advanced configuration
- Chapter 7. Troubleshooting computer problems
- General tips for preventing problems
- Diagnosing problems with Lenovo Companion
- Troubleshooting
- Computer stops responding
- Spills on the keyboard
- Error messages
- Beep errors
- Memory module problems
- Ethernet problems
- Wireless-LAN problem
- Bluetooth problem
- ThinkPad pointing device problems
- Keyboard problems
- Computer screen problems
- External monitor problems
- Audio problems
- Fingerprint reader problems
- Battery problems
- ac power adapter problem
- Power problems
- Power button problem
- Boot problems
- Sleep and hibernation problems
- Solid-state drive problem
- ThinkPad Pen Pro problem
- Software problem
- USB problem
- Chapter 8. Recovery information
- Chapter 9. Replacing devices
- Chapter 10. Getting support
- Appendix A. Supplemental information about the Ubuntu operating system
- Appendix B. Regulatory information
- Certification-related information
- Wireless-related information
- TCO certification
- Export classification notice
- Electronic emission notices
- Federal Communications Commission Declaration of Conformity
- Industry Canada Class B emission compliance statement
- European Union conformity
- German Class B compliance statement
- Japan VCCI Class B compliance statement
- Japan compliance statement for products which connect to the power mains with rated current less than or equal to 20 A per phase
- Japan notice for ac power cord
- Lenovo product service information for Taiwan
- Eurasian compliance mark
- Brazil audio notice
- Appendix C. WEEE and recycling statements
- Appendix D. Restriction of Hazardous Substances (RoHS) Directive
- Appendix E. ENERGY STAR model information
- Appendix F. Notices
- Appendix G. Trademarks
5. Click Display adapter properties.
6. Click the Monitor tab.
7. Select the correct screen refresh rate.
• Problem: Wrong characters are displayed on the screen.
Solution: Ensure that you follow the correct procedure when installing the operating system and program.
If they are installed and configured correctly, but the problem still persists, have the external monitor
serviced.
• Problem: The Extend desktop function does not work.
Solution: Enable the Extend desktop function. See “Using an external display” on page 35.
• Problem: I am using the Extend desktop function, but I cannot set a higher resolution or higher refresh
rate on the secondary display.
Solution: Change the resolution and the color depth to lower settings for the primary display. See “Using
an external display” on page 35.
• Problem: Display switching does not work.
Solution: If you use the Extend desktop function, disable it, and change the display output location. If a
DVD movie or a video clip is playing, stop the playback, close the program, and then change the display
output location.
• Problem: The screen position on the external monitor is incorrect when that monitor is set for a high
resolution.
Solution: Sometimes, when you use a high resolution such as 1600 x 1200 pixels, the image is shifted to
the left or right on the screen. To correct this, first ensure that your external monitor supports the display
mode (the resolution and the refresh rate) that you have set. If it does not, set a display mode that the
monitor supports. If it does support the display mode you have set, go to the setup menu for the monitor
itself and adjust the settings there. Usually the external monitor has buttons for access to the setup menu.
For more information, see the documentation that comes with the monitor.
Audio problems
• Problem: Wave or MIDI sound does not play properly.
Solution: Ensure that the built-in audio device is configured correctly.
1. Go to Control Panel, and ensure that you view Control Panel by Category.
2. Click Hardware and Sound.
3. Click Device Manager. If you are prompted for an administrator password or confirmation, type the
password or provide confirmation.
4. Double-click Sound, video and game controllers.
5. Ensure that the device following Sound, video and game controllers is enabled and configured
correctly.
• Problem: Recordings made by using the microphone input are not loud enough.
Solution: Ensure that the Microphone Boost function is turned on and set by doing the following:
1. Go to Control Panel, and ensure that you view Control Panel by Category.
2. Click Hardware and Sound.
3. Click Sound.
4. Click the Recording tab in the Sound window.
5. Select Internal Microphone, and click Properties.
6. Click the Levels tab, and move the Microphone Boost slider upwards.
7. Click OK.
Chapter 7. Troubleshooting computer problems 81