User guide

A17
Troubleshooting
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Check the following before calling for service.
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Do you see an "OSD LOCKED" message on the screen?
● Is the power cord of the
display connected?
● Is the power on and the
power indicator blue or
green?
● Is the power indicator
amber?
● Do you see an "OUT OF
RANGE" message on
the screen?
● Do you see a "CHECK
SIGNAL CABLE"
message on the
screen?
• Check and see if the power cord is connected
properly to the power outlet.
•
Adjust the brightness and the contrast.
•
If the display is in power saving mode, move the
mouse or press any key on the keyboard to
activate the screen.
• Turn on the PC .
• This message appear when the signal from the PC
(video card) is out of the diplay's horizontal or
vertical frequency range. See the 'Specifications'
section of this manual and configure the display
again.
• This message appears when the signal cable
between your PC and the display is not connected.
Check the signal cable and try again.
• You can secure the current control settings,
so that they cannot be inadvertently changed.
You can unlock the OSD controls at any time
by pushing the MENU button for several
seconds: the message
“OSD UNLOCKED” will appear.
●
Do you see “OSD
LOCKED” when you
push MENU button?