Lenovo C445, 57315617, 57312695, 57315603, C440 Solving Problems, Troubleshooting Display Problems

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Solving Problems

Follow these tips when troubleshooting your computer:

If you added or removed a part before the problem started, review the installation procedures to ensure that the part is correctly installed.

If a peripheral device does not work, ensure that the device is properly connected.

If an error message appears on the screen, write down the exact message.

This message may help support personnel diagnose and fix the problem(s).

If an error message occurs in a program, see the Help document of this program.

Troubleshooting Display Problems

Problem: Blank screen or no image is displayed on the monitor.

Troubleshooting and problem resolution:

Check that the LCD screen has been turned on; If not, press the LCD On/Off button to turn on the LCD.

If still cannot solve the problem, contact Lenovo Customer Service.

Problem: You need to change the display property settings.

Setting display background and icon properties:

1.Right-click the desktop anywhere except over an icon, then select Personalize from the pop-up menu.

2.From here, select the appropriate options to:

Change the desktop background

Select a screen saver

Select Windows color options for borders and taskbar

Select a themes

3.Right-click the desktop anywhere except over an icon, then select Screen resolution from the pop-up menu to change the appearance.

20User Guide

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Contents Lenovo C3/C4/C5 Series Important Safety Information Page Contents Hardware Replacement Guide Using the Computer Hardware Front view of the computer Left and right views of the computer Rear view of the computer Installing the computer stand Computer stand Connecting your computer Connecting the power cord Important information about using the computer Connecting to the Internet Wired keyboard selected models onlyUsing Windows Switching between apps Switching between the main Windows 8 interfacesCharms Bar Shutting down the computerOpening other system programs Closing an appWindows Help and Support User Guide Using the Rescue System OneKey Recovery Method 1 Automatic Installation Driver and Application InstallationMethod 2 Manual Installation User Guide Troubleshooting Confirming Setup Troubleshooting Display Problems Solving ProblemsTroubleshooting Audio Problems Troubleshooting Software Problems Troubleshooting Problems with Optical Drives and Hard Disks Special considerations for troubleshooting Windows When do I need to change the boot mode? Bios setup utilityPerforming Daily Maintenance Tasks Hardware Replacement Guide Overview Safety information for replacing CRUsTools required Additional information resourcesHandling static-sensitive devices General information Replacing hardwareRemoving the stand base Removing the foot cover Replacing a memory module Replacing the hard disk drive User Guide Replacing the optical drive User Guide Replacing the adapter Connect the new adapter as shown To replace the keyboard Replacing the keyboard and mouseDeclaration AppendixTrademarks 10102/4773 10103/4751 10104/6595 10105/6596 10110/6267 Energy Star StatementEnabling ErP compliance mode