Lenovo Yoga 3 Pro-1370 Laptop User Guide - Lenovo YOGA 3 Pro-1370 - Page 36

Chapter 4. Troubleshooting The computer does not • If your computer is in sleep mode, connect the AC return from sleep mode and power adapter to the computer, then press the the computer does not Windows button or the Power button. work. • If the system still does not return from sleep mode, your system has stopped responding, and you cannot turn off the computer; reset the computer. Unsaved data may be lost. To reset the computer, press and hold the Power button for eight seconds or more. If the computer still does not reset, remove the AC power adapter. Display panel problems The screen is blank. • Do the following: - If you are using the AC power adapter or the battery, and the battery status indicator is on, press Fn + ↑ to make the screen brighter. - If the power indicator is blinking, press the Power button to resume from sleep mode. - Press Fn + ` to confirm whether the backlight of the LCD screen has been turned off. - If the problem persists, follow the solution in the next problem "The screen is unreadable or distorted." The screen is unreadable or • Make sure that: distorted. - The screen resolution and color quality are correctly set. - The monitor type is correct. Incorrect characters appear • Is the operating system or programs installed on the screen. correctly? If they are installed and configured correctly, have the computer serviced. Sound problems No sound can be heard from the speakers 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. 32