Instruction manual

16
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TROUBLESHOOTING
WyreStorm Install Test Kit
Part Number TT-HDMI-KIT
Generally, the majority of HD distribution installation
issues are either caused by minor connection
errors, communication problems between devices,
or when the transmission of high signal bandwidth
is attempted using insufficient cable. Should you
encounter any technical difficulties when installing
and configuring the matrix, we are confident
solutions can be found by working through the
following troubleshooting checklist before seeking
alternative technical support.
No Picture or poor quality picture
1) Power – are your HDBaseT transmitter or display
receiver baluns powered both ends? Transmitters and
receivers should have their own power source i.e. the 5v
power adaptors included with your baluns.
Are all sources definitely powered and firmly connected?
2) If possible, always use test equipment prior to
installation and to troubleshoot any problems.
3) Distance – Is your cable too long for the signal to be
transmitted effectively? The Pro Plus allows transmission
of 1080p up to 70m (230ft) so make sure you cable
distance matches your requirements and is well within the
maximum transmission distance of the signal.
Note: If you are approaching the limits of the transmission
capabilities, you will need to use a WyreStorm Extender
set for the signal to transmit effectively.
11. Troubleshooting
4) Cable joins? Joins in your cable run can impact on
signal strength, resulting in reduced transmission that may
manifest itself in poor picture quality or a complete lack of
picture.
5) Signal Reduction – Are you using stranded patch
leads as interconnects between patch panels or
wall outlets? Such use reduces signal strength – we
recommend solid core straight through connections to be
used wherever possible.
6) Resolution – If you reduce the resolution of the
source, do you get a picture? If so, this suggests a
discrepancy between source and display resolution or
a bandwidth capacity issue with your cable. Check that
your inputs and outputs share the same resolution and
that the signal is being successfully transmitted along your
cable run.
7) Correct connection – It may seem obvious but
double check all UTP, HDMI, power and IR cables are
connected to the correct ports. Even a fraction off can
be the difference between a perfect picture and a blank
screen. Double check all connections are firmly made in
the correct ports.
9) Cable wired to 568B standard? Is your cable wired
and terminated correctly and are those terminations
connected to the correct ports?
10) Electrical interference – HD transmissions are
susceptible to electrostatic interference so locations of
cables and devices should be considered
11) Do you get a picture if you connect the source
directly to the display? If not then the problem could lie
with the input or output device rather than the means of
distribution i.e. the cable or matrix itself.
12) HDMI lead condition and quality – HDMI cables
and connectors are delicate and can be damaged much
easier than component or coax cable. Furthermore,
lead quality varies dramatically, particularly in lower price
brackets. Swap your HDMI leads and check operation –
damage to or quality of your leads could be the problem.
If in doubt, swap them over. Always take care inserting
and extracting your HDMI from matrix ports so as not to
damage the connectors or ports.
13) Picture snow/HD ‘noise’ – represents a poorly
established signal that may be caused by poor quality
terminations or excessive cable lengths. Try swapping the
display adaptors from a location you know is functioning
properly or swapping the outputs of the matrix switch