HP LD4730 47-inch Micro-Bezel Video Wall Display manual Troubleshooting, Solving common problems

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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

 

 

 

No image is

Power cord is

Be sure the power cord is properly connected to the outlet.

displayed.

not connected.

Verify that the outlet has power to it.

 

 

 

 

Check that the fuse or breaker has not tripped or burned out.

 

 

See if the power switch is turned on.

 

 

Might need service.

 

 

 

Power is on,

Screen needs

Adjust brightness, backlight and contrast again.

power indicator

adjustment.

Backlight might need repair.

is green, but the

 

 

 

screen appears

 

 

extremely dark.

 

 

 

 

 

Power indicator

Display is in

Press power button ( ) on the back of the display.

is red.

power saving

 

 

mode.

Activate a signal source.

 

No video signal

Turn off equipment and then back on.

 

is active.

Select an active input or set Auto Detection in the OSD menu to on.

 

 

 

 

 

Out of Range

Input signal is

The signal from the media player/computer (video card) is out of the vertical or

message

out of frequency

horizontal frequency range of the display. Adjust the frequency range.

appears.

range.

NOTE: Vertical Frequency — To enable the user to watch the display, the screen

 

 

 

 

image should change multiple times every second like a fluorescent lamp. The vertical

 

 

frequency or refresh rate is the number of times the image displays per second. The

 

 

unit is measured in Hz.

 

 

Horizontal Frequency — The horizontal interval is the time to display one vertical line.

 

 

When 1 is divided by the horizontal interval, the number of horizontal lines displayed

 

 

every second can be tabulated as the horizontal frequency. The unit is measured in

 

 

kHz.

 

 

 

Check video

Signal cable is

The signal cable between the media player/computer and display is not connected.

cable message

not connected.

Make sure that the signal cable is properly connected.

appears.

 

 

 

 

 

 

OSD Lockout

Key Lock

To unlock the menu, press the up and down arrows on the back of the display

message

function is

simultaneously and hold for 5 seconds.

appears when

turned on.

 

pressing the

 

 

Menu button.

 

 

 

 

 

The screen

Screen is out of

Adjust the position using the OSD menu options H Position and V Position in the

looks abnormal;

adjustment.

Option 1 menu.

screen position

 

Check that the video card resolution and frequency are supported by the display. If the

is wrong.

 

 

frequency is out of range, set to the recommended resolution in the Control Panel

 

 

 

 

Display Settings of the operating system.

 

 

 

52 Appendix A Troubleshooting

ENWW

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Contents User Guide First Edition January Document Part Number About this guide Iv About this guide Table of contents Operating the display Japanese power cord requirements Viii Product features HP Digital Signage DisplaysAccessories Optional accessoriesSafety and maintenance guidelines Important safety informationMaintenance guidelines Enww Cleaning the LD4730 Cleaning the LD4730GShipping the display Setting up the display UnpackingIdentifying display components Component FunctionConnecting the speakers sold separately 4Connecting to the input terminal Setting up the displayDisplay control panel Control Label FunctionIdentifying remote control buttons Label Function DescriptionSetting up the remote control Installing the HP LD4730 Frame System Sold Separately Mounting a single display on a stand Sold Separately11Attaching corners Enww Connecting cables Securing the displayLabel Function LINE-IN19Audio connection 22 RS-232 25 DisplayPort 26 Ethernet Enww Connecting multiple displays to one player Connecting multiple displays with Video Over Ethernet VOEConnecting multiple displays to one player Connecting multiple displays with Tile Mode 34Multiple displays with tile mode 37Daisy chain connection RS232-C Mounting the display Mounting in portrait position Considerations for wall mountingInstalling the driver, .INF and .ICM files Software and utilitiesInformation file Image color matching fileDownloading from the Web Using the On-Screen Display menu Operating the displaySetting up IR Daisy Chain Controlling displays with IR Daisy ChainMenu Setting Function 3IR Lock MessageNavigating with the infrared remote control Navigating with the control panelTo enable/disable this Hold these buttons SettingsOSD menu selections Contrast BrightnessSharpness BacklightTemperature Audio Volume1280 x 768 pixels 1360 x 768 pixelsSound Mode ConfigurationPhase Level 1 Menu Level 2 Menu Level 3 Menu Description TrebleSensor Interface SelectAuto Detection NSM NetworkVOE Setup OSD ModeLevel 1 Menu Level 2 Menu Level 3 Menu Description Option LanguagePower On Delay Level 1 Menu Level 2 Menu Level 3 Menu Description ScheduleDPM Select Key LockFactory Reset DiagnosticInformation Serial numberFirmware Update Tile Mode MonitorsNatural Mode ResetPower On Delay Using Key LockSetting the backlight level Using Tile ModeH1,V1 H1,V2 H1,V3 H1,V4 H1,V5 Optimizing analog images Tuning color + + 10Rotating the filter 11Positioning the colorimeter Operating the display Enww Troubleshooting Solving common problemsUsing Online Technical Support Power ButtonLockout Preparing to call technical support Technical specifications HP Digital Signage DisplayHP LD4730 HP LD4730G Resolution Connectors Other inputConnector Environmental Operating Packed WeightRecognizing preset display resolutions Preset display modesHigh definition video formats Power indicator Mode LED indicator lightDisplay quality and pixel policy Defect Type Allowable OccurrencesAgency regulatory notices Federal Communications Commission noticeModifications CablesCanadian notice Avis CanadienEuropean Union regulatory notice Japanese notice Korean notice Power cord set requirements Japanese power cord requirementsGerman ergonomics notice Product environmental notices Chemical substancesTurkey EEE regulation Ukraine Restriction of Hazardous Substances
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LD4730 47-inch Micro-Bezel Video Wall Display specifications

The HP LD4730 is a state-of-the-art 47-inch Micro-Bezel Video Wall Display designed to enhance visual experiences in various settings, including retail, control rooms, and corporate environments. With its ultra-narrow bezels, the LD4730 offers an immersive viewing experience by minimizing the gaps between screens, allowing for seamless video wall configurations.

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