Sharp PN-H801 Operation Manual

Also see for PN-H801: Setup manual Setup manual

38ETroubleshootingIf you are experiencing any problem with your display, beforecalling for service, please review the following troubleshootingtips.There is no picture or sound.• Is the power cord disconnected? (See page 14.)• Is the main power switch off? (See page 17.)• Is the monitor in standby mode (the power LED illuminatingin orange)? (See page 17.)• Make sure correct input mode is selected. (See page 18.)• If any external equipment is connected, make sure theequipment is operating (playing back).Remote control does not work.• Are the batteries inserted with polarity (+,-) aligned? (Seepage 16.)• Are the batteries exhausted?• Point the remote control unit toward the monitor’s remotecontrol sensor. (See page 16.)• Is ON SCREEN DISPLAY set to OFF or is operationdisabled? (See page 30.)Sound is heard from only one side.• Are audio cables connected properly?• Check the setting of BALANCE for AUDIO menu. (Seepage 26.)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 INPUT SELECT on the SETUP menucorrect? (See page 27.)Unstable video.• The signal may be incompatible. (See page 41.)• Try the automatic screen adjustment when the D-SUB areused. (See page 29.)The video from the HDMI input terminal does not appearproperly.• Is the setting for HDMI SETTING of INPUT SELECT on theSETUP menu correct? (See page 27.)• Is the HDMI cable HDMI standard compliant? The monitorwill not work with cables that are not standard compliant.• Is the input signal compatible with this monitor? (See page41.)• To show 4K2K video or 1080p video, use a high-speedHDMI cable.• If connected to a HDMI1 - 3 input terminal while inputting4:2:0 format, connect to the HDMI4 input terminal. Thevideo and audio of some connected devices may not outputcorrectly because the HDMI1 - 3 input terminals support3840 x 2160 (60Hz) 4:4:4 or 4:2:2 format. (See page 12.)The video from PC D-Sub input terminal does not appearcorrectly.• Is the setting for SCREEN POSITION of INPUT SELECTon the SETUP menu correct? (See page 27.)• Is the input signal compatible with this monitor? (See page41.)Control buttons do not work.There is no picture.• Load noises from outside may be interfering with normaloperation. Turn off the power and turn it on after waiting atleast 5 seconds, and then check the operation.Power LED flashes red.• Hardware has a problem. Turn off the monitor and requestrepair from your SHARP dealer.The monitor makes a cracking sound.• You may occasionally hear a cracking sound from themonitor. This happens when the cabinet slightly expandsand contracts according to change in temperature. Thisdoes not affect the monitor’s performance.The Power LED is flashing in red and green alternately.• When the internal temperature of the monitor risesexcessively, the brightness of the backlight decreasesautomatically in order to prevent high-temperature-relatedproblems. If the internal temperature rises further, themonitor automatically enters standby mode and the PowerLED blinks red and green alternately.• Remove the cause of the excessive temperature rise.- If the monitor enters standby mode due to a rise intemperature, to return to normal display, turn the powerswitch off and then back on again. The monitor, however,will enter standby mode again if the cause of thetemperature rise is not eliminated. (See page 8.)- Check whether the monitor is placed at a location wherea quick rise in temperature is likely. Internal temperaturerises quickly if the vents on the monitor are blocked.- Internal temperature rises quickly if dust accumulatesinside the monitor or around the vents. Remove dust ifpossible. Ask SHARP dealer about removing internal dust.