Manual

6
Troubleshooting
Regardless of manufacturer or product, the majority
of installation difficulties can typically be attributed
to communication problems between devices or
when high bandwidth transmissions are attempted
with insufficient cable/connections. Should you find
yourself in such a situation, we have drawn up the
following checklist of general issues and causes
that should help you shoot your way out of trouble
without seeking further assistance.
No or poor quality picture?
1) Device Connection - Are you connected and
powered? Double check all HDMI and 5v power
connections are firmly inserted into correct ports and that
all devices are powered.
2) Cable Length – Your signal could be struggling to
transmit over the length of your HDMI cable? If possible,
try using a shorter HDMI cable.
3) Signal strength – the use of cable joins, stranded
patch panels, wall outlets and stranded patch leads
as interconnects between them, can significantly
reduce signal strength. Use solid core, straight-through
connections wherever possible.
4) Resolution - If you reduce the resolution of the
source, do you get a picture? If so, this suggests a
conflicting resolution between source and display or
a bandwidth capacity issue with your cable. Check all
inputs and outputs share the same resolution and make
sure the signal is being successfully transmitted the full
length of your HDMI cable.
5) Cable quality and condition – HDMI cable/
connectors can be easily damaged and the quality of
material can vary, especially in lower price brackets.
Successful transmission of video, audio and control can
all be affected by cable and termination quality. Always
use good quality leads and cables. Should transmission
problems be experienced, try swapping cables/leads for
those already working to see if this improves your image
to identify cable issue as source of problem.
6) Blu-Ray, 3D - is the equipment used 3D enabled/
compatible? Is a 3D disc being played in a 3D enabled
Blu-ray player or through a compatible AV receiver?
Are resolutions between source and display compatible
with adequate cable bandwidth for the larger 3D
transmissions?
7) 4K - Are you trying to pass a 4K signal? Ensure
connected devices are 4K enabled, correctly configured
and outputting compatible transmissions
4K: 3840 (UHD) or 4096 (DCI) 2160 @ 30Hz with chroma
(colour) subsampling rate of 4:2:2
1080p: 1920x1080p, 60Hz (if problems are experienced
at 60Hz, try lowering to 50Hz)
8) Power LED off - Check power supply is on
and cables are connected properly and of required
specification
9) Input or Output LED off – Check power is supplied
to all connected devices and cables are connected
properly and of required specification
10) Display not showing image – Check all devices
are turned on and cables are connected properly and of
required specification and corresponding Output LED on
splitter is lit. Also check display and source are operating
properly and Source is outputting a signal, making sure
devices support HDCP.
Ensure the length of HDMI cables between devices are
within limits – see Specification section for details.
If compatibility issues are suspected between display and
splitter, swap out for a display you know is fully functional
with the system.
11) Display device displays ‘HD ‘noise’ such as
picture ‘snow’ or ‘mosaic’ – signifies a failure to fully
establish a signal and can often be caused by excessive
cable lengths.
Check power is supplied to all connected devices
and cables are connected properly and of required
specification.
Ensure the display device supports HDCP
Check input source does not have the same picture
issues, if so, check settings of source device or replace
source.
Ensure the length of HDMI cables between devices are
within limits – see Specification section for details.
Try swapping or shortening your HDMI cable – if the
problem continues on the same output, turn off all
equipment and swap your signal carrying cables at both
ends.