DOUGH Spectrum ES07DCA - Support and troubleshooting; Solving common problems

Support and troubleshooting
40
Support and
troubleshooting
Solving common problems
The following table lists possible problems, the possible cause of each problem, and
the recommended solutions.
Problem
Possible cause
Solution
Screen is blank or
video is flashing.
Power cord is
disconnected.
Connect the monitor power cord.
Monitor is off.
Press the monitor power button.
Video cable is not
connected.
Connect a video cable between the
source device and monitor. Be sure
the computer power is off when
connecting the video cable.
System is in sleep mode.
Press any key on the keyboard or
move the mouse to exit sleep
mode.
Video card is
incompatible.
Replace the video card or connect
the video cable to one of the
computer’s onboard video sources.
Image appears
too dark.
Brightness setting is too
low.
Open the OSD menu and select
‘Brightness’ in the ‘Picture’ menu to
adjust the brightness scale as
needed.
‘No signal’ is
displayed on the
screen.
Monitor video cable is
disconnected.
Connect the appropriate video
cable between the computer and
monitor. Be sure that the computer
power is off while you connect the
video cable.
System is powered off
Press the system’s power button.
‘Signal out of
range’ is
displayed on
screen.
Video resolution and/or
refresh rate are set
higher than what the
monitor supports.
Change the settings to a supported
setting.