Lenovo 10086, 3109, 4743 K430 manual 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 program’s documentation.

Note: The procedures in this document were written for the Windows default view, so they may not apply if you set your Lenovo® computer to the Windows Classic view.

3.1 Troubleshooting Display Problems

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

Troubleshooting and problem resolution:

1.Check to see if the monitor has been turned on; if not, press the Power button.

2.Check to see if the monitor power cord is loose; if so, plug the power cord securely into the monitor.

3.Check to see if the signal cable to the monitor is securely connected to the connector on the computer graphics card; if not, shut down the computer then connect the signal cable of the monitor securely to the connector on the computer graphics card.

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 colors and appearance options for icons and text

Set resolution and colors in the Display Settings options

24User Guide

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Contents IdeaCentre K4 Series Important Safety Information Page Contents Hardware Replacement Guide This chapter contains the following topics Chapter Using the Computer HardwareFront view of the chassis Rear view of the chassis User Guide User Guide Basic connector instructions Connecting your computerLine-in connector on a stereo system or other Sound configuration is as follows 7.1 Audio configuration instructionsConfigurations are as followings 5.1 Audio configuration instructionsDVI-HDMI Hot-swappable hard disk selected models only Wired keyboard selected models onlyUser Guide User Guide Power Control Switch selected models only User Guide Auto Turbo User Guide Chapter Using the Rescue System Driver and Application Installation OneKey RecoveryMethod 1 Automatic Installation System SetupMethod 2 Manual Installation Network SettingsSystem Recovery System BackupCreate Recovery Disc Password ManagementTroubleshooting and Chapter Confirming Setup Troubleshooting Display Problems Solving ProblemsTroubleshooting Software Problems Troubleshooting Audio ProblemsTroubleshooting Problems with Optical Drives and Hard Disks Special considerations for troubleshooting Windows Performing Daily Maintenance Tasks Chapter Hardware Replacement Guide Overview Safety information for replacing CRUsTools required Additional information resourcesHandling static-sensitive devices Identifying internal components LocationsPCI express X 16 adapter slots Identifying parts on the system boardMicroprocessor fan header 12V power connector Battery Microprocessor and heat sink General information Pre-disassembly instructionsReplacing hardware To remove the computer cover Removing the computer coverTo remove the front bezel Removing the front bezelTo replace a memory module Replacing a memory moduleTo replace a hard disk drive Replacing a hard disk driveTo replace an optical drive Replacing an optical driveTo replace a graphics card Replacing a graphics cardUser Guide User Guide To replace the TV-Tuner card Replacing the TV-Tuner cardUser Guide To replace the keyboard Replacing the keyboard and mouseDeclaration AppendixTrademarks Energy Star StatementUser Guide User Guide