Instruction manual

6
TEST THE PRE-INSTALLATION FOR ANY ELECTRICAL
NOISE, AND MOVE PARTS IF REQUIRED BEFORE FIXING
UNDERSTANDING AND TESTING THE HEADSETS
BEFORE HELMET INSTALLATION
Connect a headset speaker harness (via an optional headset extension lead if bike mounting the
system) to the riders lead on the main control hub (longest lead) also connect the optional passengers
headset (if being used) again via another optional extension lead if bike mounting the system, to the
passengers lead on the main control hub. DO NOT CONNECT the boom microphone/s just yet, or any
other audio interface leads to the main control hub.
Set the rider and passenger master
volume controls so that the pointers on
the end of each control knob point to the
central positions as marked on the label).
(Picture A).
Open the battery compartment and set
the small VOX pre-set control per the
illustration (B).
Start the bike in a well ventilated area,
after checking that no parts will fall off
onto a hot exhaust etc. Hold the rider’s
headset speakers firmly and directly over both ear holes
(noting the centre of each speaker is slightly offset in the
plastic housings) and listen carefully for any electrical
interference through the speakers. HT (sparkplug/leads and
coils etc) may induce a rapid tick, tick, tick noise which changes
with engine RPM. Alternator noise if heard is normally a higher
frequency constant whine, which again changes with engine
RPM, so try to vary the engine RPM while listening carefully
through the speakers for any induced electrical noise. It should
be completely clean and in which case you can now turn the
rider’s volume control fully clockwise (FULL VOLUME) and do
the same test again, it should be completely clean. Now do the
same tests using the passenger headset to again prove it is
complete clear of any electrical interference. It is very unlikely
that you will hear any electrical interference while doing these
tests, but if you do you should carefully move the lead/s about, one at a time, and/or the main control
hub, while still listening to the speakers with the engine running at varying RPM to identify which part
is picking up the noise and then move it to a clean noise free location.
When you have done this and are happy with the location of the main control hub, headset leads and
power leads etc, you can turn the ignition off and Velcro the main control hub into place, tie-wrap the
headset leads and power lead neatly in place, double checking to avoid any problems/areas as
mentioned in Top Tips (1, 2 and 3).
Fit optional on-bike rubber socket storage holders and clip the sockets into them.
We strongly recommend that you test your headsets out of the
helmet (before installation) to make it easier for you to experience
how even small movements in microphone and speaker positioning
can considerably reduce or improve the sound quality and ease of
use. With this knowledge you will have a benchmark to work to during
final helmet installation later and be sure you are getting the very
best out of your system. Do not use earplugs during this test as
they will hide and/or disguise much of what we are trying to
listen for.
Avoid pressure directly to the front or back covers of the microphones
as this could cause damage. The microphone is floating in an
acoustically dampening material to help prevent any helmet vibration
being transmitted through the boom to the microphone as part of the
noise cancelling measures. To move or adjust the microphone please
hold it by the outer edges or rubber neck, making sure that the beige
side of the fabric sits flat against and central to your lips. Try
to avoid the microphone covers touching the Velcro on the back of the
speakers.
Set both the rider and passenger master volume controls anti-
clockwise (per picture C) and set the VOX preset control (in the
battery compartment) as shown in picture D.
WARNING; because the system is capable of being VERY LOUD for
use with earplugs CAUTION should be used when turning the volume
control clockwise above the mid-way position unless you are using
conventional earplugs.
Connect a boom microphone to the headset loom, noting the red connector will only connect together
if aligned the right way round, making sure that it clicks right in.
A
B
C
D
Logic Instructions 8/5/09 3:28 pm Page 6