User guide

32 CATx KVM Extender Range
6. Troubleshooting
Video
The image is not sharp, or is badly smeared.
Have you adjusted the video equalization? Follow the instructions on
page 19.
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 43)?
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.
Have you tuned the video signal and set delays to correct skew? Follow
the instructions on page 19. See Appendix D: Advanced Cabling
Issues (Skew) for advanced cabling information.
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 43)?
You can check whether skew is a problem in your system by viewing
the test card at: http://testcard.kvmextender.info
I can’t get enough color delay to correct skew.
See Appendix D: Advanced Cabling Issues (Skew), page 42.
I can’t get rid of bright ‘ringing’ after characters.
See Appendix D: Advanced Cabling Issues (Skew), page 42.
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 30.