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NOTE! Most problems are directly related to low
battery power. Please run through the “Battery
Check” items rst. For remaining troubleshoot-
ing, use known good, fully-charged batteries.
TROUBLESHOOTING GUIDE
1
TIPS ON CLASSROOM AUDIO
Avoid wearing jewelry that may rub or bump against
the microphone.
Turn off the REDMIKE during private conversations with a student,
parent, or other classroom visitor. You can also cover the LED
lens on top of the REDMIKE to block the signal.
Recharge batteries each night. When recharged nightly, operating
time (actual usage) for the transmitters will last through a typical
school day.
Five-year Limited Warranty
Lightspeed Classroom Audio Systems are guaranteed against malfunction due to defects
in materials and workmanship for a period of FIVE (5) YEARS, beginning at the date of
the purchase invoice. If such malfunction occurs, the product will be repaired or replaced
(at Lightspeed’s option) without charge during the warranty period.
1. Warranty on infrared microphones is FIVE (5) YEARS.
2. Warranty on Lightspeed rechargeable batteries, all external cables and wires provided
by Lightspeed is one (1) year.
3. Prepaid shipping labels are provided by Lightspeed factory or an authorized warranty
service center for warranty repairs.
4. Warranty does not extend to nish, appearance items, or malfunctions due to abuse
or operation other than specied conditions, nor does it extend to incidental or
consequential damages. Repair by other than Lightspeed or its authorized service
agencies will void this guarantee. Information on authorized service agencies is
available from Lightspeed Technologies, Inc.
2
3
4
Speak in a natural voice. A normal conversational speech level
will provide an adequate signal. It is not necessary to increase
the intensity of your voice—the audio system provides
adequate amplication (approximately 5 – 10 dB) above
ambient room noises.
Our Service Department (800.732.8999, 5 a.m. – 5 p.m., PST)
will handle all your repair/replacement needs.
LIGHTSPEED TECHNOLOGIES, INC. | WWW.LIGHTSPEED-TEK.COM | 800.732.8999
Contact us:
LIGHTSPEED TECHNOLOGIES
11509 SW HERMAN ROAD
TUALATIN, OREGON 97062
TOLL FREE: 800.732.8999
PHONE: 503.684.5538
FAX: 503.684.3197
WWW.LIGHTSPEED-TEK.COM
MN0007US01-0
Classroom Audio System
Battery Check
•Conrm batteries are charged
each night.
•Conrm proper batteries are used.
The REDMIKE requires the Lightspeed
BA-NH2A27 sensing battery for
proper charging.
•Make sure the REDMIKE is turned off
while charging so that it will attain a
full charge. Full charge will last
seven hours.
•Inspect the battery contacts. Clean
and adjust if necessary.
Hearing Static
•Ensure REDCAT is in optimum
location (refer to REDCAT placement
in manual). A single REDCAT will
cover a 1200 sq. ft. enclosed
classroom.
•Ensure that no other REDMIKE/LT71/
HM70 is operating on the
same channel.
•If an external microphone is in use,
try another REDMIKE that is known
to be working (if available) to isolate
the problem. If static persists with
“known good” microphone, the
REDMIKE input jack will need service.
Low Volume or Feedback
• Ensure microphone is positioned
appropriately, just below the
collar bone.
•Check volume level on the amplier.
If the volume is too high, feedback
will occur. Adjust accordingly.
No Sound From Speaker
•Ensure the REDCAT is plugged in
and is turned on. Conrm that the
POWER light located on the power
switch is on.
•Conrm signal is being received at
the REDCAT. The IR signal light will
be lit (RED) indicating a signal is
being received.
•Conrm that REDMIKE is turned on.
There will be a BLUE LED on
the microphone to indicate it is
powered on.