Dell 4691253, 320-2807 manual Troubleshooting, Dell U2312HM Flat Panel Monitor Users Guide

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Troubleshooting

Dell™ U2312HM Flat Panel Monitor User's Guide

Self-Test

Built-in Diagnostics

Common Problems

Product Specific Problems

Universal Serial Bus Specific Problems

Dell Soundbar Problems

WARNING: Before you begin any of the procedures in this section, follow the Safety Instructions.

Self-Test

Your monitor provides a self-test feature that allows you to check whether your monitor is functioning properly. If your monitor and computer are properly connected but the monitor screen remains dark, run the monitor self-test by performing the following steps:

1.Turn off both your computer and the monitor.

2.Unplug the video cable from the back of the computer. To ensure proper Self-Test operation, remove all Digital (white connector) and the Analog (blue connector) cables from the back of computer.

3.Turn on the monitor.

The floating dialog box should appear on-screen (against a black background) if the monitor cannot sense a video signal and is working correctly. While in self-test mode, the power LED remains blue. Also, depending upon the selected input, one of the dialogs shown below will continuously scroll through the screen.

or

or

4.This box also appears during normal system operation if the video cable becomes disconnected or damaged.

5.Turn off your monitor and reconnect the video cable; then turn on both your computer and the monitor.

If your monitor screen remains blank after you use the previous procedure, check your video controller and computer, because your monitor is functioning properly.

Built-in Diagnostics

Your monitor has a built-in diagnostic tool that helps you determine if the screen abnormality you are experiencing is an inherent problem with your monitor, or with your computer and video card.

NOTE: You can run the built-in diagnostics only when the video cable is unplugged and the monitor is in self-test mode.

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Contents Model U2312HMt June 2011 Rev. A00 Dell U2312HM Flat Panel MonitorDell U2312HM Flat Panel Monitor Users Guide Setting Up Your Monitor About Your Monitor Page Product Features Back View Front ViewFront View Front panel controls Back view Back view with monitor stand Side ViewDescription Use Left view Right view Bottom ViewBottom view Label Description Bottom view with monitor stand UseFlat Panel Specifications Monitor SpecificationsPreset Display Modes Resolution SpecificationsElectrical Specifications Display ModePhysical Characteristics Power Management Modes Environmental CharacteristicsPin Side of the Connected Signal Cable VGA ConnectorPin Assignments Pin Number Pin Side of the Connected Signal Cable DVI ConnectorPin DisplayPort ConnectorNumber Plug and Play Capability Transfer speed Data Power Consumption RatePin Number Pin Side of the Signal Cable Pin Number 4-pin Side of the ConnectorLCD Monitor Quality and Pixel Policy Cleaning Your MonitorAttaching the Stand Connecting Your MonitorOrganizing Your Cables Removing the Stand Attaching the Soundbar OptionalWall Mounting Optional Using the On-Screen Display OSD Menu Using the Front PanelContrast Icon MenuDisplayPort Color Settings Auto Adjust Input Source Auto SelectGamma Preset ModesHue Reset Display PhaseSettings Other Settings SaturationPower Save Audio Menu TimerMenu Transparency Menu LockOSD Warning Messages VGA/DVI-D/DP input PowerNap with Enhanced Menu Rotation SoftwareUsing the Dell Soundbar Optional Setting the Maximum ResolutionClick Change Display Settings Tilt, Swivel Using the Tilt, Swivel, and Vertical ExtensionRotating the Monitor Adjusting the Rotation Display Settings of Your System Dell U2312HM Flat Panel Monitor Users Guide TroubleshootingSupport.dell.com Common Symptoms What You Experience Possible SolutionsSpecific Symptoms What You Experience Specific SymptomsCommon Symptoms What You Experience Indicator is on Appendix Setting Up Your Monitor Click Change Display Settings Click Advanced Settings
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