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Chapter 5 Troubleshooting
5-1. No Picture
Problem
1. No picture
• Power indicator does not light up.
• Power indicator is lighting white.
• Power indicator is lighting orange.
• Power indicator is flashing orange
and white.
2. The message below appears.
• This message appears when no
signal is input.
Example:
• The message shows that the
input signal is out of the specified
frequency range.
Example:
• This message appears when the
PC connected to the USB Type-C
connector does not support video
signal output.
Example:
Possible cause and remedy
• Check whether the power cord is connected properly.
• Turn on the main power switch on the rear side of the monitor.
• Touch
.
• Turn off the main power switch on the rear side of the monitor, and
then turn it on again a few minutes later.
• Increase "Brightness", "Contrast", or "Gain" in the Setting menu (see
"Color Adjustment" (page
• Switch the input signal.
• Turn the setting "On" for "Compatibility Mode" on the "Administrator
Settings" menu (see
"Compatibility Mode" (page
• Move the mouse or press any key on the keyboard.
• Check whether the PC is turned on.
• Turn off the main power switch on the rear side of the monitor, and
then turn it on again.
• This symptom may occur when the PC is connected to the
DisplayPort connector. Use a signal cable recommended by us for
the connection. Turn the monitor off and on.
• Check the connection and condition of the USB devices connected
to the monitor.
This message appears when the signal is not input correctly even
though the monitor is functioning properly.
• The message shown left may appear, because some PCs do not
output the signal immediately after power-on.
• Check whether the PC is turned on.
• Check whether the signal cable is connected properly.
• Switch the input signal.
• Turn off the main power switch on the rear side of the monitor, and
then turn it on again.
• Check whether the PC is configured to meet the resolution and
vertical scan frequency requirements of the monitor (see
Supported Resolutions" (page
• Reboot the PC.
• Select an appropriate setting using the graphics board's utility. Refer
to the User's Manual of the graphics board for details.
• Check whether the connected cable is a signal cable recommended
by us.
• Check whether the USB Type-C of the connected device supports
video signal output (DisplayPort Alt Mode). For details, contact the
manufacturer of the device.
• Connect a DisplayPort cable or an HDMI cable.
18)).
26)).
11)).
Chapter 5 Troubleshooting
"1-3.
29
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