Manual Sharp PN-K321H (page 27 of 33) (English)

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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.

• AretheACadapterandpowercordproperlyconnected?

(See page 13.)

• Isthemainpowerswitchoff?(Seepage15.)

• Isthemonitorinstandbymode(powerlampisoff)?(See

page15.)

• Ifanyexternalequipmentisconnected,makesurethe

equipmentisoperating(playingback).

Sound from left and right speakers is reversed.

Sound is heard from only one side.

• Areaudiocablesconnectedproperly?(Seepage12.)

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20.)

• Istheheadphone(etc.)cableconnectedtotheheadphone

terminal?

The sound crackles.

• Turndownthevolume.

Withsomeinputdevices,thesoundmaycrackleathigh

volume.

Unstable video.

• Thesignalmaybeincompatible.

The video from DisplayPort input terminal does not

appear properly.

• IsthecableacertiedDisplayPortcable?Usethesupplied

cable.Themonitorwillnotworkunlessastandards-

compliant cable is used.

• Istheinputsignalcompatiblewiththismonitor?

(Seepage30.)

The video does not appear properly even after the

DisplayPort STREAM setting is changed.

• Tryrestartingthemonitorandcomputer.

• IsthevideocardMST(MultiStream)compatible?Ifnot,set

toSST(SingleStream).

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.

• Whenyoudisplaythescreenorclearthescreen,theleft

and right screen display timing may be slightly off; however,

this is not a problem.

Power LED ashes red.

“STATUS [xxxx]” appears in the corner of the screen.

• Hardwarehasaproblem.Turnoffthemonitorandrequest

repairfromyourSHARPdealer.

(WhenSTATUSALERTissettoOSD&LED.Thisvaries

depending on the setting.)

When “AUTO DIMMING” is displayed.

•

When the internal temperature of the monitor rises excessively,

thebrightnessofthebacklightautomaticallydecreasesin

order to prevent a further temperature rise.

If you attempt to use brightness adjustment button (

/ ) to

adjustthebrightnesswhilethemonitorisinthisstate,“AUTO

DIMMING”isdisplayedandyoucannotchangethebrightness.

• Removethecauseoftheexcessivetemperaturerise.

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.

The Power LED is ashing in red and green alternately.

When “TEMPERATURE” is displayed in the corner of the

screen.

• Whentheinternaltemperatureofthemonitorrises

excessively,thebrightnessofthebacklightdecreases

automaticallyinordertopreventhigh-temperature-

relatedproblems.Whenthisoccurs,“TEMPERATURE”is

displayedonthescreenandthePowerLEDashesred

andgreenalternately.(WhenTEMPERATUREALERTis

settoOSD&LED.Thisvariesdependingonthesetting.)

• Iftheinternaltemperaturerisesfurther,themonitor

automaticallyentersstandbymode.(ThePowerLED

continuesashingredandgreenalternately.)

• Removethecauseoftheexcessivetemperaturerise.

-Ifthemonitorentersstandbymodeduetoarisein

temperature, to return to normal display, turn the power

switchoffandthenbackonagain.Themonitor,however,

will enter standby mode again if the cause of the

temperature rise is not eliminated. (See page 7.)

-Checkwhetherthemonitorisplacedatalocationwhere

aquickriseintemperatureislikely.Internaltemperature

risesquicklyiftheventsonthemonitorareblocked.

-Internaltemperaturerisesquicklyifdustaccumulates

insidethemonitororaroundthevents.Removedustif

possible.AskSHARPdealeraboutremovinginternaldust.

A residual image has occurred.

After the image has changed, the previous image is faintly

visible.

• Displayingthesameimageforanextendedtimemay

cause a residual image.

• Toimprovearesidualimage,keepthepoweroff.Withthe

power off state, the residual image will gradually disappear

as time passes. If there is no improvement, display a full

white screen or an animated image.

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Others manual(s) of Sharp PN-K321H

Sharp PN-K321H Quick start guide - English, German - 44 pages

Sharp PN-K321H User Manual - German - 33 pages

Sharp PN-K321H Quick start guide - French, Spanish - 44 pages

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Sharp PN-K321H Manual

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