DOUGH Spectrum ES07D03 User Manual

Support and troubleshooting
39
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.

DOUGH Spectrum ES07D03 Specifications

General

Brand	DOUGH
Model	Spectrum ES07D03
Category	Monitor
Language	English