Sharp PN-E802 Professional, Operation Manual

49

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.

•  Is the power cord disconnected? (See page 13.)
•   Is the main power switch off? (See page 15.)
•   Is the monitor in standby mode (the power LED illuminating 

in orange)? (See page 15.)

•   Make sure correct input mode is selected. (See page 17.)
•   If any external equipment is connected, make sure the 

equipment is operating (playing back).

Remote control does not work.

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

page 14.)

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

control sensor. (See page 14.)

•   Is the menu display hidden or is operation disabled? (See 

page 28.)

Sound from left and right speakers is reversed.

Sound is heard from only one side.

•  Are audio cables connected properly? (See pages 11 to 12.)
•  Make sure audio cables for external speakers are connected 

properly: left and right cables may be reversed or one of the 
two cables may not be connected. (See page 12.)

•  Check the setting of BALANCE for AUDIO menu. (See 

page 21.)

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 OPTION menu 

correct? (See page 22.)

•  Is the setting of SPEAKER SELECT on the SETUP menu 

correct? (See page 22.)

Unstable video.

•  The signal may be incompatible.
•  Try the automatic screen adjustment when the PC D-sub 

input terminal or PC RGB input terminals are used.

The video from the PC/AV HDMI input terminal does not 

appear properly.

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

menu correct? (See page 22.)

•  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 

53.)

The video from the PC/AV DVI-D input terminal does not 

appear properly.

•  Is the setting for DVI of INPUT SELECT on the OPTION 

menu correct? (See page 22.)

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

53.)

•  Turn off the power to the connected equipment and then 

turn the power on again.

•  If the monitors are connected in a daisy chain, turn off the 

power to all the monitors connected in a daisy chain and 
then turn the power on again.

The video from PC D-SUB, PC RGB, AV COMPONENT, or 

AV VIDEO does not appear correctly.

•  Is the setting for BNC or D-SUB of INPUT SELECT on the 

OPTION menu correct? (See page 22.)

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

53.)

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.

The input mode changes automatically.

•  When the AUTO INPUT CHANGE is ON and no signal 

is present in a selected input mode, the AUTO INPUT 

CHANGE automatically changes the selected mode to a 
mode where a video signal is present.

  The input mode may change in the following cases:

- When a computer is in standby mode.
- When video play is stopped with a playback device.

Power LED flashes 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 

 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.