User guide

TROUBLESHOOTING & FAQ
35
6. Troubleshooting & FAQ
6.1 Video
The image is not sharp, or is badly smeared.
Check that the cable length DIP switch is correct for the length of your Interconnect
cable (see page 20).
Check the Interconnect cable between the Remote and Local Units. Is it of the
recommended type (see page 17)? Is it intact along its entire length and securely
connected at both ends? Is it wired correctly?
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 of the
recommended type (see page 19)? Is it intact along its entire length and securely
connected at both ends? Is it wired correctly?
Are you using low skew cable (see page 19)?
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 32.
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 ensuring
that the shield connection is maintained between the Extender Units.
Check system grounding. If your remote monitor has an external PSU you may
need to consider grounding the Remote Unit chassis (to power ground)..
If this is a persistent problem, contact Technical Support.
The PC won’t boot into the correct graphics mode
The extender includes DDC emulation for all standard resolutions and there should
not normally be any issues.
For non-standard resolutions, you will need to explicitly set the resolution in your
operating system configuration ignoring the DDC data read from the Local Unit.
Contact Technical Support if you have problems selecting your required graphics
mode.