HP DreamColor Z27x Professional Display manual Button Lockouts, Activation Button Lockout

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Problem	Possible Cause	Solution

Displayed colors do not	Monitor is not calibrated.	Recalibrate monitor or restore factory calibration.
look correct.

Calibration failed.	Incorrect setup or equipment	Redo calibration.
	failure.

Button Lockouts

When the Primary OSD or button labels are not displayed, holding specific buttons down for ten seconds will lock out different parts of the OSD’s functionality. You can restore the functionality by holding the specific buttons down again for ten seconds. This functionality is only available when the display is powered and is displaying an active signal.

The following table lists the available lockouts and the buttons that must be held down for ten seconds to enable and disable the lockout.

Activation Button	Lockout	Notes

Power button	Power lockout	When locked out, the power button does not function. The
		display can still be turned off via the power switch at the
		bottom of the display.

Bottom menu button	Menu lockout	The Primary OSD cannot be entered. However, any
		assigned function buttons (such as switch color space or
		input) are still available. Firmware updates and calibration
		are still available, unless disabled in the Management
		menu.

Top menu button	Menu and Function lockout	Both the Primary OSD and the function keys are locked
		out. Firmware updates and calibration are still available,
		unless disabled in the Management menu.

Second and fourth button	Management menu lockout	The Management menu option is disabled in the Primary
		OSD main menu.

64 Appendix B Support and Troubleshooting

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Contents HP DreamColor Z27x Display First Edition April Document Part Number About This Guide Iv About This Guide Table of contents Color Space Menu Z27x Model Recognizing Preset Display Resolutions Viii Product Features HP Z27x MonitorPage Safety and Maintenance Guidelines Important Safety InformationMaintenance Guidelines Cleaning the Monitor Shipping the MonitorSetting Up the Monitor Use Caution When Setting Up the MonitorInstalling the Stand Rear Components Component FunctionConnecting the Cables Page Page Page Page Front Panel Controls Adjusting the Monitor Page Setting Up the Monitor Turning on the Monitor Connecting USB Devices HP Watermark and Image Retention PolicyRemoving the Monitor Stand Mounting the Monitor Page Page Page Installing an Optional HP Hood Kit Page Locating the Serial Number and Product Number Locating the Information CardAttaching a Device to the Rear of the Monitor Installing a Cable Lock Operating the Monitor Software and UtilitiesInformation File Image Color Matching FileInstalling the .INF and .ICM Files Installing from the DiscUpdating the Firmware Downloading from the InternetPage Selecting a Color Space Preset Adjusting LuminanceUnderstanding the Z27x Image Adjustment Options Use Video LevelsOverscan the Frame Using the Z27x Aspect Ratio Management Options Show Only the Blue ChannelFill To Options Fill to Screen Width Proportional 2Fill to Aspect Ratio Working with 2K and 4K Digital Cinema Image Formats DCI Level Horizontal Pixels Vertical Pixels Frame RateUsing the Digital Cinema Display Options Crop to DCI 1.851 Aspect RatioShow Cropped Region Using Picture-in-Picture PIP and Picture-beside-Picture PBP Next 4K CornerUsing PIP as a Confidence Monitor Changing the Bezel Button FunctionsChanging the Bezel Function Button Mode Page Adjusting the Bezel Button LEDs Using Auto-Sleep ModeUsing the On-Screen Display Menu Color Space Menu LevelImage Adjustment Menu Video Input MenuOverdrive may improve PIP Control Menu Language Menu Management Menu CI?Do you want to allow display Calibration? Do you want to enable Menu and Message Control Menu Operating the Monitor Information and Factory Reset Menus Introduction to Color CalibrationPreparing to Calibrate OSD, select Management Manage Internal ProcessorCalibrating the Z27x Using the Onscreen Menus Recalibrate the Current PresetAuto Edid Update Page Technical Specifications Z27x ModelRecognizing Preset Display Resolutions Z27x ModelAppendix a Technical Specifications Support and Troubleshooting Solving Common ProblemsButton Lockouts Activation Button LockoutProduct Support Preparing to Call Technical SupportAgency Regulatory Notices Federal Communications Commission NoticeModifications CablesCanadian Notice Avis CanadienEuropean Union Regulatory Notice German Ergonomics NoticeJapanese Notice Korean Notice Power Cord Set Requirements Japanese Power Cord RequirementsProduct Environmental Notices Energy Star QualificationMaterials Disposal Appendix C Agency Regulatory Notices Turkey EEE Regulation Ukraine Restriction of Hazardous SubstancesLCD Monitor Quality and Pixel Policy