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Technical Support: [email protected] US: +1 866 677 0053 EU: +44 (0) 1793 230 343
TROUBLESHOOTING
11. Troubleshooting
Test Monitor
Part Number
TTMONITOR
Signal Generator
Part Number
TTSignal
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 all HDBaseT transmitters or matrices
powered? All units should have their own power
source connected ie. 12v for 70m/230ft HDBaseT PoH
transmitters – Please use power supplies included.
Note:
Display receivers do not need to be independently
powered if part of an HDBaseT PoH extender set or MX-
PP-POH Matrix solution. Non-PoH display receivers can
also be powered via the display USB port by using the
USB to 5v power cable also supplied with this model.
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 the cable too long for the signal to be
transmitted effectively? The HDBaseT classification used
within the transmitters and receivers allow transmission of
1080p up to 70m/230ft so make sure the cable distance
matches the project requirements and is well within the
maximum transmission distance of the signal.
Note:
If approaching the limits of the transmission
capabilities, transmission should be extended by using
another extender set to ensure the signal reaches its
destination effectively.
4) Cable Joins
– Joins in the cable run or RJ45
connectors can impact on signal strength, resulting in
reduced transmission that may manifest itself in incorrect
picture quality, picture dropping out or a complete lack of
picture
5) Cable Choice and Signal Reduction
– Are stranded
patch leads being used as interconnects between patch
panels or wall outlets? CCA (Copper Clad aluminium)
cables being used? These can reduce transmission
rates by up to 40% – we recommend solid core straight
through with minimum connections used wherever
possible.
6) 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
aperfect picture and a blank screen. Double check all
connections are firmly made in the correct ports.
7) Cable wired to 568B standard?
Is the cable wired
and terminated correctly and are those terminations
connected to the correct ports? Incorrect wiring and
termination will result in unstable operation or a blank
screen.
8) 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.
9) Is a picture achieved when connecting 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, receiver or matrix itself.
