Problem

Possible cause

Solution

 

 

 

Lines appear on

Screen is out of

Adjust using the procedure described in Optimizing analog images on page 46.

the background

adjustment.

 

screen.

 

 

 

 

 

Horizontal noise

Screen is out of

Adjust using the procedure described in Optimizing analog images on page 46.

appears or the

adjustment.

 

characters look

 

 

blurred.

 

 

 

 

 

The screen

Using an

The proper input signal is not connected to the signal port. Connect the signal cable

displays

incorrect input

that matches with the source input signal.

abnormally.

signal.

 

 

 

 

An after image

Using a fixed

If you used a fixed image for a long time, the pixels might be damaged. Use a screen-

appears when

image for too

saver or one of the functions in the ISM Method option of the OSD menu.

the display is

long a period of

 

turned off.

time.

 

 

 

 

No sound.

Audio cable not

Check that the audio cable is properly connected.

 

connected.

Adjust the volume.

 

 

 

 

Check the Speaker and Audio Source settings in the OSD.

 

 

 

Sound is too

Equalizer is not

Check the audio settings for Balance, Treble, Bass, and Sound Mode.

dull.

balanced.

 

 

 

 

Sound is too

Sound needs

Adjust the volume.

low.

adjusting.

 

 

 

 

Screen has

Color is not set

Set the number of colors to more than 24 bit (true color). Select Control Panel

poor color

correctly.

(Personalization →) Display Settings Color quality in the operating system.

resolution (16

 

 

colors).

 

 

 

 

 

Screen color is

Signal cable or

Check the connection status of the signal cable, or reinsert the media player/computer

unstable or

video card

video card.

mono colored.

connection is

 

 

loose.

 

 

 

 

Black spots

Black spots are

Refer to Display quality and pixel policy on page 59 for more details.

appear on the

characteristics

 

screen.

of the LCD

 

 

panel.

 

 

 

 

The power is

Sleep timer

Check the Schedule submenu of the OSD.

suddenly turned

setting is turned

Check the power control settings.

off.

on, or power is

 

 

interrupted.

 

 

 

 

Power Button

The sleep

Press the MENU and right arrow buttons on the back of the display and hold for 5

Lockout

button on the

seconds.

message

back of the

 

appears.

display is

 

 

disabled.

 

 

 

 

Using Online Technical Support

For online access to technical support information, self-solve tools, online assistance, community forums of IT experts, broad multi-vendor knowledge base, monitoring and diagnostic tools, go to www.hp.com/support

ENWW

Using Online Technical Support 53

Page 61
Image 61
HP LD4730 47-inch Micro-Bezel Video Wall Display manual Using Online Technical Support, Power Button, Lockout

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.

One of the standout features of the HP LD4730 is its impressive Full HD resolution of 1920 x 1080 pixels, which ensures crystal-clear image quality. The display leverages advanced LED backlighting technology, delivering vibrant colors and deep blacks, making it suitable for a wide range of applications, from showcasing promotional content to displaying critical data in real-time.

The LD4730 is engineered for 24/7 operation, providing reliability and durability for continuous use in demanding environments. This makes it ideal for digital signage applications where uptime is crucial. Its robust design is complemented by a sophisticated thermal management system that ensures optimal performance while preventing overheating, thereby prolonging the lifespan of the display.

In terms of connectivity, the HP LD4730 offers multiple input options, including HDMI, DisplayPort, and DVI, allowing for easy integration with various devices and content sources. This versatility is essential for creating dynamic presentations and showcasing diverse content formats. Additionally, it supports daisy chaining, enabling users to connect multiple displays easily for larger video walls without the need for additional hardware.

The display also incorporates advanced calibration capabilities that ensure consistent brightness and color across all units in a video wall setup. This feature maintains a uniform appearance, crucial for professional environments where visual consistency is key.

For added convenience, the HP LD4730 includes a user-friendly interface, allowing for straightforward setup and configuration. The display can be easily mounted in portrait or landscape orientation, providing flexibility in design and installation.

In conclusion, the HP LD4730 47-inch Micro-Bezel Video Wall Display is a powerful solution for businesses looking to create impactful visual displays. Its high-resolution capabilities, durable design, and extensive connectivity options make it suitable for a broad array of applications, ensuring high-quality performance and reliability in any environment.