(SD0263US01-2)
LIGHTSPEED TECHNOLOGIES
11509 SW HERMAN ROAD / TUALATIN, OREGON 97062
TOLL FREE: 800.732.8999 / PHONE: 503.684.5538 / FAX: 503.684.3197
LIGHTSPEED-TEK.COM
Symptom
Problem Isolation Steps
Resolution
Feedback
Check
that the volume on the RC2 is not
set too high.
Reduce volume as needed until feedback issue is
resolved. Remember the teacher should barely be
able to hear his/her own voice at optimum volume
levels.
Check
that the microphone is being
worn properly.
The top of the microphone should be worn at the
level of the collarbone. Adjust lanyard accordingly.
Check
that the tone is set to the mid-
point.
Set the tone indicator to the 9 o’clock position
and then adjust as needed to eliminate feedback.
Test
the original microphone with
another system that is working
properly.
If the problem persists with the other system, the
microphone is likely the cause of the problem.
Low volume
Check
that the volume level on the RC2
is not set too low.
Position the volume indicator at the 12 o’clock
position and then adjust as needed for normal
operation.
Check
that the microphone is being
worn properly.
The top of the microphone should be worn at the
level of the collarbone.
Check
a known good microphone on
the same channel with the RC2.
If the volume level remains the same as the
original microphone, the most likely cause of the
problem is the RC2.
Drop-out /
intermittent
operation
Check
if two microphones are being
used that they are on different
channels.
If needed, change one microphone to the oppo-
site channel.
Check
that there is no obstruction be-
tween the RC2 and the micro-
phone.
Make sure the microphone is not blocked by
clothing or turned to face the user.
Check
RC2 placement in the room.
Evaluate the RC2 location in the room and adjust
as needed. It should be located near the center of
the room along a long wall. Avoid placing it near
obstructions.
Check
that the RC2 is located away from
possible sources of IR interfer-
ence.
Direct sunlight and Plasma monitors can adversely
affect performance.
Check
that a known good microphone
works with the system being
tested.
If the intermittent operation stops, the original
microphone is likely the cause of the problem. If
the problem continues, the RC2 is the most likely
cause.
REDMIKE2
(RMT2) will not
power on
Check
that the correct battery is being
used.
Use the Lightspeed NH2A27 NiMH rechargeable
sensing battery as it is the only kind of battery that
will properly charge with the RMT2.
Check
that the battery is installed prop-
erly.
Ensure that the polarity is observed.
