Sharp PN-H701 用户手册

38

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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 14.)
•   Is the main power switch off? (See page 17.)
•   Is the monitor in standby mode (the power LED illuminating 

in orange)? (See page 17.)

•   Make sure correct input mode is selected. (See page 18.)
•   If any external equipment is connected, make sure the 

equipment is operating (playing back).

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

page 16.)

•   Are the batteries exhausted?
•   Point the remote control unit toward the monitor’s remote 

control sensor. (See page 16.)

•   Is ON SCREEN DISPLAY set to OFF or is operation 

disabled? (See page 30.)

•  Are audio cables connected properly?
•  Check the setting of BALANCE for AUDIO menu. (See 

page 26.)

•  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 menu 

correct? (See page 27.)

•  The signal may be incompatible. (See page 41.)
•  Try the automatic screen adjustment when the D-SUB are 

used. (See page 29.)

•  Is the setting for HDMI SETTING of INPUT SELECT on the 

SETUP menu correct? (See page 27.)

•  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 

41.)

•  To show 4K2K video or 1080p video, use a high-speed 

HDMI cable.

•  If connected to a HDMI1 - 3 input terminal, connect to 

the HDMI4 input terminal. The video and audio of some 
connected devices may not output correctly because the 
HDMI1 - 3 input terminals support 3840 x 2160 (60Hz) 
4:4:4 format. If input in this format is not necessary, use the 
HDMI4 input terminal. (See page 12.)

•  Is the setting for SCREEN POSITION of INPUT SELECT 

on the SETUP menu correct? (See page 27.)

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

41.)

•  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.

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

repair from your SHARP dealer.

•   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.

•   When the internal temperature of the monitor rises 

excessively, the brightness of the backlight decreases 
automatically in order to prevent high-temperature-related 
problems. If the internal temperature rises further, the 
monitor automatically enters standby mode and the Power 
LED blinks 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 8.)

-  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.