Sharp PN-C703B User Manual

31

E

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 on? (See page 17.)

•   Make sure correct input mode is selected. (See page 21.)

•   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 the remote control operation in FUNCTION menu 

enabled? (See page 28.)

•  Are audio cables connected properly? (See page 13.)

•  Check the setting of BALANCE of AUDIO SETTINGS for 

AUDIO menu. (See page 25.)

•  Is the sound muted? (See page 21.)

•  Make sure the volume is not set to minimum. (See page 

21.)

•  Are audio cables connected properly?

•  Is the setting of AUDIO OUTPUT on the OTHERS menu 

correct? (See page 26.)

•  The signal may be incompatible. (See pages 35 to 36.)

•  Try the automatic screen adjustment when PC (INPUT6) is 

used. (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 pages 

35 to 36.)

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

35.)

•  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. (See page 

17.)

•  Turn on the monitor first before turning on the computer or 

playback device.

•  If you turn the power switch off and then back on again 

connecting the computer with a graphic card, the resolution 

may change to 640 x 480. The resolution changes back to 

1920 x 1080 according to the following steps.

   -  Disconnect and connect the video cable.

   -   Press the DETECT button when the SCREEN 

RESOLUTION is displayed. (For Windows)

   -  Reboot the computer.

•   Is the USB cable connected properly?

•   If you want to position the monitor further away than the 

USB cable will allow, extend the cable using a USB cable 

with a repeater.

•   Is the screen exposed to direct sunlight or other strong 

light? The touch panel uses infrared rays and thus may not 

operate correctly.

•  Is there an obstacle between the infrared transmitter/

receiver and the touch pen or your finger? An obstacle will 

prevent correct operation. If your fingers or a sleeve are too 

close to the screen, correct operation will not be possible.

•  Is the infrared transmitter/receiver dirty? Gently wipe off 

any dirt with a soft cloth.

•   If the touch panel is touched with a small tip less than about 

5/16 inch (8 mm) x 5/16 inch (8 mm), the touch may not be 

detected by infrared and correct operation will not take place.

•   When starting your computer or connecting the USB cable, 

do not touch the touch panel. If you touch the touch panel, 

this may be detected as an element failure in the infrared 

transmitter/receiver and incorrect operation will result.

•   When two touch pens are used, it may not be possible to 

write correctly.

   -  When touch pens are moved near each other.

   -  When a pen is held at an angle while writing.

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

repair from your SHARP dealer.

•   High temperature inside the monitor. 

Remove the cause of the excessive temperature rise.

•   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.