Troubleshooting
29
6. Troubleshooting
Video
The image is not sharp, or is badly smeared.
Have you adjusted the video equalization? Follow the instructions on
page 23.
Check the Interconnect cable between the Remote and Local units. Is it
of the recommended type (see page 13)? Is it intact along its entire
length and securely connected at both ends? Is it wired correctly (see
page 39)?
Ensure that all video connections throughout the system are attached
securely.
Are you using an LCD panel? You need to adjust its clock and/or phase.
Colors appear to be separated and there are colored borders on text and
icons.
Check the Interconnect cable between the Remote and Local units. Is it
a recommended ‘low skew’ type (see page 14)? Is it intact along its
entire length and securely connected at both ends? Is it wired correctly
(see page 39)?
You can check whether skew is a problem in your system by viewing
the test card at:
http://testcard.kvmextender.info.
I only need video extension – not keyboard or mouse - but I can’t get a
picture.
Have you powered the Local unit? The Local unit gets its power from
the CPU through the keyboard connection and it will not operate
without it. Use an external 5V PSU as described on page 27.
The monitor sometimes goes blank for a second or two.
Check that the interconnect cable is not routed near power lines or other
sources of electrical interference. Use shielded STP/FTP cable instead
of UTP cable and ensure the shield connection is maintained between
the Extender units.
Check system grounding.
If this is a persistent problem, contact Technical Support.
The PC won’t boot into the correct graphics mode.
Check that DDC Emulation is enabled (see page 25). If you are using a
non-standard resolution, transfer the monitor’s DDC information to the
Local Unit (see page 26).
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