LightSpeed Technologies 850iR, User Manual

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8 5 0 i R U s e r M a n u a l
35 | 850iR User Manual
TROUBLESHOOTING GUIDE
If you review these instructions and still have questions, write down the serial number and model
number of your system and call Lightspeed Technical Services at 800.732.8999, 5 a.m. – 5 p.m., PST.
Note: Most problems are directly related to low battery power. Please run through the “Battery
Check” items first. For remaining troubleshooting, use known good, fully-charged batteries.
Battery Check
• Confirm
batteries are charged
each night.
• Confirm proper batteries are used. The
REDMIKE requires the Lightspeed
BA-NH2A27 rechargeable sensing battery for
proper charging. The LT-71 & HM-70 require
NiMH AA rechargeable batteries.
• Make sure the microphones are turned off
while charging so a full charge is attained. Full
charge will last eight hours.
• Inspect the battery contacts. Clean and
adjust if necessary.
Hearing Static
• Ensure
sensor is in optimum location (refer to
sensor placement in manual). A single sensor
will cover a 1600 sq. ft. enclosed classroom.
• Ensure
that no other REDMIKE/LT71/HM70 is
operating on the same channel.
• If the optional iR media connection is in use,
set the microphone to Channel A.
Low Volume or Feedback
•
Ensure
microphone is positioned
appropriately, just below the collar bone.
• Check volume level on the amplifier. If the
volume is too high, feedback will occur.
Adjust accordingly.
• Adjust the volume level on the back of the
optional REDMIKE VC.
No Sound From Speaker
• Turn
the 850iR on. Confirm that the POWER
light located on the front panel switch is on.
• Confirm signal is being received at the
850iR. The IR signal light will be RED
indicating a signal is being received.
• Confirm that REDMIKE is turned on. There
will be a BLUE LED on the microphone to
indicate it is powered on.