DOUGH Spectrum One - Solving common problems

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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.
Power cord is disconnected.
Connect the monitor power cord.
Monitor is off.
Press the monitor power button .
Screen is blank, or
‘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.
The monitor is set to the
wrong input.
Press joystick down to switch video inputs,
until a valid signal is found.
System is in sleep mode.
Press any key on the keyboard or move the
mouse to exit sleep mode.
System is powered off
Press the system’s power button.
Screen is blank, or
‘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.
Screen is blank, or
video is flashing.
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.