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9 Troubleshooting
In normal operation, an image is displayed when the sources are set correctly. In the event
of a fault, the following checks can help localize the cause, based on the screen display and
the signal information in the OSD.
1. Check the device for the possible causes listed in the following.
2. Carry out the remedial measures before contacting service personnel.
9.1 Fault correction
Fault
No picture appears on
the monitor
Fuzzy picture, interfer-
ence in vertical lines
Picture is without con-
trast and has a strong
green shading
Other
CuratOR LX490W
Instructions for Use, 06/2017
Cause
Monitor is in standby
Power cable not connected
or connected incorrectly
No sync signal or video sig-
nal
Sync cable connected incor-
rectly
The video source is not
sending a video signal, or is
sending an unknown timing.
The video source is sending
an unknown timing
Blown fuse
Scanning frequency or
phase incorrectly set.
The video source is only
transmitting a green signal
Loose plug
Defective cable
Remedy
•
Check whether the monitor is in energy
saving mode; for example, has Power
Management been activated by the signal
source and monitor?
•
End standby by holding down "Standby" on
the remote control.
•
Check the power cable.
•
Is the power switch in the "On" position?
•
Can the OSD menu be activated?
•
Check whether source sweep has been
switched on and the source chosen under
source selection is connected.
•
Check the video cable.
Exchange the sync cable connectors.
•
Check the video source.
•
In the "Info" OSD menu, check whether the
source was detected and that the source
signal is in the displayable range.
Set a different timing for the video source.
Contact service.
Set the frequency and phase.
•
In the OSD "Signal" menu, switch from
"Color" to "Monochrome".
•
Check the selected LUT and whether the
USER settings can be changed.
•
Has the device been running for at least 20
minutes without Power Management acti-
vated?
Connect the loose plug and secure it.
Replace the defective cable.
Troubleshooting
9.1 Fault correction
49
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