Muxlab Stereo PC-Audio Balun - Manual (Page 2)

© MuxLab Inc.
Note: The Stereo PC-Audio Balun is phase polarity sensitive. Therefore, in order to
achieve full stereo audio quality, please ensure that the wiring is straight-through
and according to EIA568 (A or B) standard.
3. Verify the colors of the RCA plugs and connect one (1) Stereo PC-Audio
Balun to the PC audio 3.5mm connector of the PC output.
4. Verify the colors of the RCA plugs and connect a compatible MuxLab Stereo
Audio Balun (i.e. 500027) to the left-audio and right-audio RCA connectors of
the TV or audio receiver at the remote end.
5. Complete the connection between the two (2) baluns, using standard UTP
cable, connector blocks and appropriate modular RJ45 outlets.
6. Power-on the audio equipment and check the audio quality. The audio should
be clear within the maximum specified distances. The following diagram
shows a typical configuration using the 500030 and the 500027.
Troubleshooting
The following table describes some of the symptoms, probable causes and possible solutions
in respect to the installation of the Stereo PC-Audio Balun. If you still cannot diagnose the
problem, please call MuxLab Customer Technical Support at 877-689-5228 (toll-free in North
America) or 514-905-0588 (International).
Symptom Probable Causes Possible Solutions
Poor audio
quality EMI interference. Check that wiring is not too close to
transformers and ballasts.
Split pair Ensure that the UTP pairs are not
split and that each pair of wires is
twisted.
No audio No power Check your audio system for power.
Open circuit Check wiring to ensure continuity
Defective balun Change Stereo PC-Audio Baluns for
another pair.
Audio phase
cancellation Reversed wires Check for straight-through wiring.
Audio weak Distance specifications
exceeded Check DC loop resistance and verify
if distance spec is exceeded. Reduce
cable length or eliminate high-loss
components.