Muxlab Component Video/Digital Audio Balun - Manual (Page 2)

© MuxLab Inc.
Installation
One (1) pair of baluns is needed to complete one component (YPbPr/RGB) connection
via Cat 5E/6 twisted pair. To install the baluns, perform the following steps:
1. Identify the pin configuration of the baluns. Three (3) twisted pairs are required for
video and one (1) twisted pair is required for optional digital audio. The pin
configuration follows the EIA/TIA 568A/B standard. The Component
Video/Digital Audio Balun is reverse polarity sensitive. Please ensure that wiring
is straight-through (Ring to Ring, Tip to Tip).
2. Plug one (1) balun into the component video coaxial cable output of the video
source according to the color code of the RCA cable leads.
3. Plug the second balun into the component video coaxial cable input of the video
screen or receiver at the remote end.
4. Complete the connection between the two baluns, using standard Cat 5E/6 twisted
pair cable and connecting hardware, terminated on RJ45 plugs at both ends. Ensure
that there are no split pairs or taps.
5. If Digital Audio is to be connected (optional), connect an RCA lead between the
balun and the digital audio equipment at both ends.
6. Power-on the component video equipment. Check the image quality and refer to
the troubleshooting table below if the image quality is unsatisfactory. The
following diagram shows a typical installation.
Troubleshooting
The following tables describe some of the symptoms, probable causes and possible
solutions in respect to the installation of the Component Video/Digital Audio Balun:
Video Symptom Probable Cause Possible Solutions
No continuity in video link
Verify cable continuity between pairs of
baluns.
Power off Check power supplies of video equipment. No video
Improper connection and/or
swapped pair Check that baluns are connected to correct
video inputs and outputs.
Unusual colors Reversed polarity
Check wiring and ensure straight-through
polarity.
Background pattern EMI interference
Identify possible radiating frequency sources
(i.e., wireless LANs, switching power
supplies). Try to isolate them from the video
connection. Use shielded twisted pair
grounded at both ends.
Smearing Exceeded distance
Verify cable grade. Use higher grade cable if
necessary.
Exceeded distance
Verify cable grade. Use higher grade cable if
necessary. Increase contrast on monitor.
Weak contrast
Unusual link attenuation
Verify cable distance using ohmmeter or cable
tester.
Image not stable Defective link or equipment Verify video equipment interface integrity.
Horizontal bars
moving slowly
Substantial crosstalk
between multiple video
sources Consecutively turn off other video sources to
determine which video source is the cause of
interference.
Snowy picture Distance is near limit
Verify cable grade. Use higher grade cable if
necessary. Reduce color intensity at monitor.
Audio Symptom Probable Cause Possible Solutions
Distance exceeded Verify cable length between the two baluns.
Split pair
Check if the UTP pairs are split and correct.
Each signal pair must be twisted.
No audio
Power-off
Check power supplies of digital audio
equipment.
Missing channels
Cabling problem between
the decoder/amp and the
audio speakers
Check audio speaker cabling.
EMI interference
Check that wiring is not too close to
transformers and ballasts.
Noise, static
Distance exceeded or
unusual cable attenuation
Check cable distance and cable grade.
If you still cannot diagnose the problem, please call MuxLab Customer Technical
Support at 877-689-5228 (toll-free in North America) or (+1) 514-905-0588
(International).