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10
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 and receiver
baluns powered at both ends?
HDBaseT transmitters and receivers each require their
own 5v power sources to operate.
HDBaseT PoH-enabled transmitters require their own 12v
power supply, while PoH display receivers typically do not
need to be locally powered. However, if power issues
from the transmitter location are experienced, a 5v power
source can be used at the display receiver location.
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?
HDBaseT allows transmission of 1080p various distances
from 50m/164ft, 70m/230ft, and 100m/328ft so make
sure you cable distance matches your requirements,
model of extender, 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 an additional WyreStorm
Extender set for the signal to transmit effectively.
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.
Note: 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
– HDBaseT is less
susceptible to interference compared to regular
transmissions but the location of cables and devices
should be considered - could any form of interference
be generated? If so, attempt to remove the source of
electrical interference or move the cable run to decrease
the effects of the interference.
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.
10. Troubleshooting
Test Monitor
Part Number
TTMONITOR
Signal Generator
Part Number
TTSIgnal
TROUBLESHOOTING
