Sharp PN-U473, PN-U553, PN-U423 operation manual Troubleshooting, 45 E

Page 45

Troubleshooting

If you are experiencing any problem with your display, before calling for service, please review the following troubleshooting tips.

There is no picture or sound.

•Is the power cord disconnected? (See page 13.)

•Is the main power switch off? (See page 16.)

•Is the monitor in standby mode (the power LED illuminating in orange)? (See page 16.)

•Make sure correct input mode is selected. (See page 18.)

•If any external equipment is connected, make sure the equipment is operating (playing back).

Remote control does not work.

•Are the batteries inserted with polarity (+,-) aligned? (See page 15.)

•Are the batteries exhausted?

•Point the remote control unit toward the monitor’s remote control sensor. (See page 15.)

•Is the menu display hidden or is operation disabled? (See page 29.)

Sound from left and right speakers is reversed. Sound is heard from only one side.

•Are audio cables connected properly?

•Check the setting of BALANCE for AUDIO menu. (See page 23.)

There is a picture but no sound.

•Is the sound muted?

•Make sure the volume is not set to minimum.

•Are audio cables connected properly?

•Is the setting of AUDIO SELECT on the SETUP menu correct? (See page 23.)

Unstable video.

•The signal may be incompatible.

•Try the automatic screen adjustment when the D-SUB is used.

The video from the HDMI input terminal does not appear properly.

•Is the HDMI cable HDMI standard compliant? The monitor will not work with cables that are not standard compliant.

•Is the input signal compatible with this monitor? (See page

51.)

The video from the DVI-D input terminal does not appear properly.

•Is the input signal compatible with this monitor? (See page

51.)

•Turn off the power to the connected equipment and then turn the power on again.

•If the monitors are connected in a daisy chain, turn off the power to all the monitors connected in a daisy chain and then turn the power on again.

The video from D-Sub input terminal does not appear properly.

•Is the input signal compatible with this monitor? (See page

51.)

The video from the DisplayPort does not appear properly.

•Is the input signal compatible with this monitor? (See page

51.)

The video from component input terminals does not appear properly.

•Is the video cable (Y/Cb/Cr) connected correctly?

•Is the input mode set to COMPONENT?

The video will not appear correctly if the input mode is set to VIDEO.

The video from video input terminal does not appear properly.

•Is the input mode set to VIDEO?

The video will not appear correctly if the input mode is set to COMPONENT.

Control buttons do not work.

There is no picture.

•Load noises from outside may be interfering with normal operation. Turn off the power and turn it on after waiting at least 5 seconds, and then check the operation.

The monitor makes a cracking sound.

•You may occasionally hear a cracking sound from the monitor. This happens when the cabinet slightly expands and contracts according to change in temperature. This does not affect the monitor’s performance.

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Contents PN-U553 PN-U473 PN-U423 Information on Disposal for Business Users Information on Disposal for Users private householdsEuropean Union Other Countries outside the EUGREEN-AND-YELLOW For Customers in U.KBlue BrownDear Sharp Customer Safety Precautions Tips and Safety Instructions For the monitor in portrait orientation For the monitor in landscape orientationSupplied Components ContentsPart Names Remote control sensor See Input switch See Power switch SeeNFront view NRear view LCD panelPart Names NRemote control unit Signal transmitterReturn button See Size button See 11 E Connecting Peripheral EquipmentConnecting Peripheral Equipment 13 E Connecting the Power CordPN-U553 Cables connected to the terminals on the rear Binding CablesInstalling the batteries Preparing the Remote Control UnitRemote control operation range 15 ETurning on the main power Turning Power On/OffTurning power on/off Status Status of the monitorTurning Power On/Off NOperation mode NDate/time setting17 E Basic Operation 19 E Basic Operation NSwitching the screen sizeWide Normal Dot by DotDisplaying the menu screen Menu ItemsNMenu screen display NExample of operationMenu item details 21 EMenu Items NSCREENMenu Items NPICTURE NSETUP 23 EMenu Items NAUDIO NMULTI/PIP Menu Items NMONITORMenu Items NOTHERS 25 EMenu Items NDual screen display NEnlargePIP 27 E NSCHEDULEInput NAutomatic adjustment Adjustments for PC screen displayNScreen display for adjustment Opening the adjustment patternAdjustment Lock ALL Reset29 E OSD DisplayCommunication procedure PC connection Controlling the Monitor with a PC RS-232CCommunication conditions 31 E NResponse code formatNID numbers OK 002 ← VOLM0010 OK 001 ← Wait ←NRepeater control command 33 EControlling the Monitor with a PC RS-232C NRepeater control Power control/Input mode selection RS-232C command tableHow to read the command table Controlling the Monitor with a PC RS-232C35 E Controlling the Monitor with a PC RS-232C Picture menuAudio menu Monitor menu Controlling the Monitor with a PC RS-232C Setup menu37 E Initialization/Functional Restriction Setting Function menuControlling the Monitor with a PC RS-232C MULTI/PIP menu Others menuControlling the Monitor with a PC RS-232C Others Temperature Sensor DstaControlling the Monitor with a PC LAN Settings to connect to a LAN39 E To set on the monitorControlling the Monitor with a PC LAN To set from a PC Set up processControlling with a PC 41 EControlling the Monitor with a PC LAN Basic operationControlling the Monitor with a PC LAN PC operation SetupScreen Picture Audio43 E Advanced operation Command-based control 45 E TroubleshootingPower LED is flashing in red and green alternately TroubleshootingSpecifications NProduct Specifications47 E Specifications NDimensional Drawings Specifications NPower management 49 ENDDC plug and play NCompatible signal timing AV Specifications NCompatible signal timing PC51 E NRS-232C output terminal pins Specifications NDVI-D output terminal pins53 E PN-U553U473U423 Me EN13G1
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PN-U423, PN-U473, PN-U553 specifications

The Sharp PN-U473 is a sophisticated large-format display ideal for a variety of commercial environments, offering both stunning visuals and robust features. This 47-inch LCD panel is designed with versatility in mind, making it suitable for digital signage, presentations, and information displays across various sectors.

One of the standout features of the PN-U473 is its ultra-thin bezel, which enhances immersion when used in multi-screen configurations. This design element minimizes distractions, allowing viewers to focus on the content being displayed. The Full HD resolution of 1920 x 1080 ensures that images and text are crisp and clear, providing superior visual performance that is crucial for conveying important information.

The PN-U473 is equipped with advanced display technologies, including a high brightness level of up to 500 cd/m². This makes it particularly effective in high-ambient light environments, where visibility is often a concern. The display utilizes LED backlighting, which not only enhances brightness and contrast but also contributes to energy efficiency, helping businesses reduce operational costs.

Connectivity options are extensive, featuring multiple inputs including HDMI, DisplayPort, and VGA, which provide flexibility for various multimedia sources. The built-in USB media player further enhances its functionality, allowing users to display files directly without the need for a separate computer.

Additionally, the PN-U473 supports advanced image processing technologies that ensure smooth video playback and excellent color accuracy. This capability is essential for applications where detail and clarity are paramount, such as retail or corporate environments.

Moreover, the display is designed for 24/7 operation, making it a reliable choice for continuous use scenarios where downtime can be costly. Its robust thermal management system helps maintain optimal performance under prolonged use.

In conclusion, the Sharp PN-U473 combines cutting-edge display technology with practical features tailored for commercial applications. Its impressive visual quality, versatile connectivity, and durability make it a valuable asset for businesses looking to enhance communication and engagement through impactful visual presentations. Whether in retail, corporate settings, or public spaces, this display stands out as a reliable solution for effective messaging and information dissemination.
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