Intelix DIGI-DVI-F - Manual (Page 3)

Symptom Probable Causes Possible Solutions
No video No continuity in video
link Verify cable continuity between pairs of
baluns.
Verify the max distance has not been
exceeded.
No video Power off Check power supplies of video
equipment.
No signal Improper connection or
swapped pairs Check that baluns are connected to
correct video inputs and outputs.
Verify both ends of the twisted pair cable
conform to the EIA 568B crimp pattern.
Unusual colors
Rolling signal
Horizontal video
bars Improper grounding or
cable type Verify the source and destination devices
are grounded. Different electrical circuits
may cause a voltage differential on the
building’s electrical ground plain. The
video display or source deceive may need
to be grounded.
Background
pattern EMI interference Identify possible radiating frequency
sources (i.e.; wireless LANs, switching
power supplies) and isolate them.
Replace any unshielded twisted pair cable
with shielded twisted pair cable.