Troubleshooting - Sharp PN-L703WA Operation Manual

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 18.)
• Is the monitor in standby mode (the power LED illuminating
in orange)? (See page 18.)
• Is an input mode selected that is appropriate for the input
terminal to which the cable is connected? (See pages 25,
26.)
• 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 41.)
Sound from left and right speakers is reversed.
Sound is heard from only one side.
• Are audio cables connected properly? (See page 13.)
• 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
13.)
• Check the setting of BALANCE for AUDIO menu. (See
page 33.)
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 SETUP menu
correct? (See page 33.)
• Is the setting for SPEAKER SELECT of AUDIO OPTION on
the SETUP menu correct? (See page 34.)
Unstable video.
• The signal may be incompatible.
• Try the automatic screen adjustment when D-SUB1[RGB]
or D-SUB2 are used.
• If the top and bottom of the image are not horizontally
aligned, set TOUCH PANEL MODE on the MONITOR
menu to OFF.
• Is SCREEN MOTION set? (See page 37.)
The video from the HDMI input terminal does not appear
properly.
• Is the setting for HDMI1/HDMI2/HDMI3 of INPUT SELECT
on the SETUP menu correct? (See page 33.)
• 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
66, 67.)
62
E

Troubleshooting

The video from D-sub1 input terminal does not appear
correctly.
• Is the setting for D-SUB1 of INPUT SELECT on the SETUP
• Is the input signal compatible with this monitor? (See page
The video from D-sub2 input terminal does not appear
correctly.
• Is the input signal compatible with this monitor? (See page
The video from DisplayPort input terminal does not
appear correctly.
• Is the input signal compatible with this monitor? (See page 66.)
• Is the DisplayPort cable DisplayPort standard compliant?
Control buttons do not work.
There is no picture.
• Load noises from outside may be interfering with normal
The input mode changes automatically.
• When CONNECT AUTO INPUT SELECT is ON, the input
• When the NO SIGNAL AUTO INPUT SEL. is ON and no
The input mode may change in the following cases:
The touch panel does not respond.
• Is the USB cable connected properly? (Touch pen
This monitor has 2 USB ports (for touch panel). The USB
• Has Touch pen Management Tool been installed? (Touch
• Has the pen tip of the touch pen become worn? Replace
• Is the battery inserted in the wrong orientation (+, -) in the
• Is the touch pen battery exhausted?
• Touch actions cannot be performed while SCREEN
menu correct? (See page 33.)
66.)
66.)
The monitor will not work with cables that are not standard
compliant.
operation. Turn off the power and turn it on after waiting at
least 5 seconds, and then check the operation.
mode automatically changes to that terminal when a video
signal is input into the input terminal.
For this reason, the input mode may change when the
computer wakes up from system standby.
signal is present in a selected input mode, the monitor
automatically changes the selected mode to a mode where
a video signal is present.
- When a computer is in standby mode.
- When video play is stopped with a playback device.
Management Tool Operation Manual)
port (for touch panel) depends on the terminal to which the
computer's video signal cable is connected. (See pages 13
and 34.)
pen Management Tool Operation Manual)
the pen tip. (See page 21.)
touch pen? (See page 20.)
MOTION is in operation.