44
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 17.)
• Is the monitor in standby mode (the power LED illuminating
in orange)? (See page 17.)
• Is an input mode selected that is appropriate for the input
terminal to which the cable is connected? (See page 20.)
• 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 15.)
• Are the batteries exhausted?
• Point the remote control unit toward the monitor’s remote
control sensor. (See page 15.)
• Is the menu display hidden or is operation disabled? (See
page 33.)
• Do the remote control numbers on the remote control unit
and on the monitor match?
Check the numbers on INFORMATION. (See page 32.)
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 D-SUB[RGB] is
in use.
The video from the HDMI input terminal does not appear
properly.
• 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
47 and 48.)
The video from D-Sub input terminal does not appear
correctly.
• Is the setting for D-SUB of INPUT SELECT on the SETUP
menu correct? (See page 26.)
• Is the input signal compatible with this monitor? (See pages
47 and 48.)
The video from the DisplayPort does not appear properly.
• Is the DisplayPort cable DisplayPort standard compliant?
The monitor will not work with cables that are not standard
compliant.
• Is the input signal compatible with this monitor? (See page
47.)
• 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.
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 input mode changes automatically.
• When NO SIGNAL AUTO INPUT SEL. is ON and
the current video signal input stops, the input mode
automatically changes to the mode of an active video
signal.
Consequently, the input mode may change even in the
following cases:
- When a computer enters 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 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.
The Power LED is flashing in red and green alternately.
When “TEMPERATURE” is displayed in the corner of the
screen.
• When the internal temperature of the monitor rises
excessively, the brightness of the backlight decreases
automatically in order to prevent high-temperature-
related problems. When this occurs, “TEMPERATURE” is
displayed on the screen and the Power LED flashes red
and green alternately. (When TEMPERATURE ALERT is
set to OSD & LED. This varies depending on the setting.)
• If the internal temperature rises further, the monitor
automatically enters standby mode. (The Power LED
continues flashing 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 7.)
- 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.