HP LP2275w manual A Troubleshooting, Solving Common Problems, Possible Cause, Solution

Page 41
A Troubleshooting

A Troubleshooting

Solving Common Problems

The following table lists possible problems, the possible cause of each problem, and the recommended solutions.

Problem

Possible Cause

Solution

 

 

 

Screen is blank.

Power cord is disconnected.

Connect the power cord.

 

 

 

 

Power button on front panel of the

Press the front panel power button.

 

monitor is turned off.

NOTE: If pressing the power button has no effect, press

 

 

 

 

and hold the power button for 10 seconds to disable the

 

 

power button lockout feature.

 

 

 

 

Master power switch on rear panel

Turn the master power switch to On.

 

of the monitor is turned Off.

 

 

 

 

 

Video cable is improperly

Connect the video cable properly. Refer to Setting Up the

 

connected.

Monitor on page 6 for more information.

 

 

 

 

Screen blanking is active.

Press any key on the keyboard or move the mouse to

 

 

inactivate the screen blanking utility.

 

 

 

Image appears blurred,

Brightness and contrast are too low.

Press the —/Autobutton on the front panel. If this does not

indistinct, or too dark.

 

correct the image, press the Menu button to open the OSD

 

 

Menu, and adjust the brightness and contrast scales as

 

 

needed.

 

 

 

Image is not centered

Position may need adjustment.

Press the Menu button to access the OSD menu. Select

 

 

Image Control/Horizontal Position or Vertical Position to

 

 

adjust the horizontal or vertical position of the image.

 

 

 

Check Video Cable is

Monitor video cable is

Connect the appropriate video signal cable between the

displayed on screen.

disconnected.

computer and monitor. Be sure that the computer power is

 

 

off while connecting the video cable.

 

 

 

Input Signal Out of Range.

Video resolution and/or refresh rate

Restart the computer and enter Safe Mode. Change the

Change resolution setting

are set higher than what the monitor

settings to a supported setting (see Recognizing Preset

to 1680 × 1050 @ 60Hz (HP

supports.

Display Resolutions on page 41). Restart the computer

LP2275w Model) or Input

 

so that the new settings take effect.

Signal Out of Range.

 

 

Change resolution setting

 

 

to 1920 × 1200 @ 60Hz (HP

 

 

LP2475w Model) is

 

 

displayed on screen.

 

 

HP Display LiteSaver doesn't turn off the monitor screen.

The Activity Extension time has not elapsed.

The default Activity Extension value is set to 10 minutes. The HP Display LiteSaver will wait to detect no input or movement from the keyboard or mouse for 10 consecutive minutes after the Display Off time has passed, before the

Solving Common Problems 35

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Contents User Guide HP LP2275w and LP2475w LCD MonitorsFirst Edition March Document Part Number 2008 Hewlett-Packard Development Company, L.PAbout This Guide iv About This Guide 1 Product Features Table of contents2 Safety and Maintenance Guidelines 3 Setting Up the MonitorAppendix B Technical Specifications Appendix A TroubleshootingAppendix C Agency Regulatory Notices Appendix D LCD Monitor Quality and Pixel PolicyHP LP2275w Model 1 Product FeaturesHP LP2475w Model Energy Star European Union CE Directives Swedish MPR II Swedish TCO RequirementsImportant Safety Information 2 Safety and Maintenance GuidelinesShipping the Monitor Maintenance GuidelinesCleaning the Monitor Installing the Monitor Pedestal Base 3 Setting Up the MonitorHP LP2275w Model Rear ComponentsTable 3-1 HP LP2275w Rear Components Component8 Chapter 3 Setting Up the Monitor HP LP2475w ModelFigure 3-3 Rear Components Table 3-2 HP LP2475w Rear ComponentsSelecting and Connecting the Signal Cables Table 3-3 Signal Connectors and Cables continued 10 Chapter 3 Setting Up the MonitorConnecting the Monitor Power Connecting USB Devices Cable Management Adjusting the Monitor14 Chapter 3 Setting Up the Monitor Figure 3-9 Adjusting the Heightb. Gently push down on the display head d. Guide the display head up to the desired heightTurning on the Monitor Removing the Monitor Pedestal Base Using the Accessory RailsMounting the Monitor 18 Chapter 3 Setting Up the Monitor Figure 3-14 Installing the Quick ReleaseLocating the Rating Labels Software and Utilities 4 Operating the MonitorThe Information File The Image Color Matching FileDownloading from the Worldwide Web Installing the .INF and .ICM FilesInstalling from the CD Using the Auto-Adjustment Function Front panel controls vary by model Front Panel ControlsFront Panel Controls Table 4-1 HP LP2275w Monitor Front Panel ControlsTable 4-2 HP LP2475w Monitor Front Panel Controls 24 Chapter 4 Operating the MonitorOSD Menu Selections Adjusting the Monitor SettingsUsing the On-Screen Display Menu Icon Table 4-3 OSD MenuMain Menu SubmenuTable 4-3 OSD Menu continued Icon Table 4-3 OSD Menu continuedMain Menu SubmenuIcon Optimizing Digital Conversion Using the HP Display Assistant UtilityIdentifying Monitor Conditions Sleep Timer ModeHP Display LiteSaver Installing the HP Display LiteSaver SoftwareChanging the Color Temperature sRGB Support4. Click the Advanced Settings button Installing the sRGB ICM File for Microsoft Windows Vista2. Click Personalization 3. Click Display Settings Solving Common Problems A TroubleshootingProblem SolutionPower Button Lockout is 36 Appendix A TroubleshootingPreparing to Call Technical Support Using the Worldwide WebTable B-1 HP LP2275w Specifications B Technical Specifications38 Appendix B Technical Specifications Table B-2 HP LP2475w Specifications Table B-1 HP LP2275w Specifications continuedTable B-2 HP LP2475w Specifications continued 40 Appendix B Technical SpecificationsTable B-4 HP LP2475w Factory Preset Modes Recognizing Preset Display ResolutionsTable B-3 HP LP2275w Factory Preset Modes Entering User Modes Energy Saver Feature Federal Communications Commission Notice C Agency Regulatory NoticesModifications CablesEuropean Union Regulatory Notice Canadian NoticeAvis Canadien German Ergonomics Notice Japanese Notice Korean Notice Power Cord Set RequirementsJapanese Power Cord Requirements Materials Disposal Product Environmental NoticesEnergy Star Compliance 11363-2006 11363-2006 Restriction of Hazardous Substances RoHS48 Appendix C Agency Regulatory Notices D LCD Monitor Quality and Pixel Policy
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