Operation Manual

41
E
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.
• ThepowerLEDisoff.
- Is power supplied to this monitor?
- Is the power cord disconnected? (See page 14.)
- Is the main power switch off? (See page 16.)
• ThepowerLEDlightsred.
-Thismonitorisinstandbymode.Turnonthepower.(See
page 16.)
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operationwiththeremotecontrolunitdisabled?(See
page 36.)
The remote control unit’s buttons for operating the HDMI-
connected device do not work.
• IsHDMICECsettoOnunderHDMISettingsontheImage
menu?
• Onthismonitor,onlythePOWERbuttonisenabled.
• Switchtoadifferentinputmode,andthentryswitchingthe
inputmodebacktoHDMI.
Sound from left and right speakers is reversed.
Sound is heard from only one side.
• Areaudiocablesconnectedproperly?
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?
Unstable video.
• Thesignalmaybeincompatible.
• TrytheautomaticscreenadjustmentwhenVGA(D-SUB)is
in use.
The video from the HDMI input terminal does not appear
properly.
• DoestheHDMIcablesupport4K,andisitHDMIstandard
compliant?Themonitorwillnotworkwithcablesthatare
not standard compliant.
• Istheinputsignalcompatiblewiththismonitor?(Seepages
45 and 46.)
• Whenconnectingadevicethatdoesnotsupport4KVsync
50/60Hzsignals,settheHDMIModetoMode2.
The video from D-Sub input terminal does not appear
correctly.
• Istheinputsignalcompatiblewiththismonitor?(Seepage
45.)
Control buttons do not work.
There is no picture.
• Loadnoisesfromoutsidemaybeinterferingwithnormal
operation.Turnoffthemainpowerandturnitonafter
waiting at least 5 seconds, and then check the operation.
The touch panel does not respond.
• IstheUSBcableconnectedproperly?
• Didyouconnectyourcomputertothevideoinputterminal
onthefrontwhenconnectedtoTOUCHPANELterminal1
on the front, or to the video input terminal on the rear when
connectedtoTOUCHPANELterminal2onthetherear?
• IstheTouchOn/OffbuttonsettoOff? (See page 10.)