LightSpeed Technologies Personal FM System LES 370 Series - Manual (Page 6)

Operation
Battery Charging
Your system will work best with fully charged batteries each day. Batteries
last longest (up to three years) when charged each night. It’s best if
batteries are not drained completely before charging. When you first re-
ceive your system, charge the batteries overnight.
1. Use only the BC 370 Battery Chargers
(included) to charge the batteries.
2. Fold out the wall-plug 90 degrees.
3. Plug the Battery Charger into a standard
120-volt electrical outlet.
4. After the Transmitter and Receiver are turned
OFF, insert the charging cord into the DC 3V
charging jack. The green LED on the charger
will light.
5. Let the Transmitter and Receiver batteries charge for 8 hours.
Transmitter Set-Up
1. Slide power switch all the way right to OFF.
2. Plug the microphone cable plug securely into the MIC jack on top
of the Transmitter. Be sure plug is seated all the way into the jack.
3. Select the desired channel (A or B) on the side of the Transmitter.
This must match the channel on the Receiver you are using.
4. Position microphone according to type selected. (See Microphones
in the Control & Function section.)
5. Rotate the volume knob to approximately mid-way. You may need
to adjust this later, dependent on the teacher’s voice volume and
the student’s hearing needs.
6. Slide power switch all the way left to the ON position. (Avoid the
center MUTE position.)
7. Transmitter can be worn clipped to a pocket or belt.
Operation
Receiver Set-Up
1. Slide power switch to OFF.
2. Plug headphone plug securely into EARPHONE jack on the top
of the Receiver.
3. Check that the channel switch is set to the same channel (A or B)
as the Transmitter.
4. Put on the headphones, checking for correct/comfortable fit and
placement over ears.
5. Rotate Receiver volume control to mid-point. You may need
to adjust this once the system is operational, dependent on the
teacher’s voice volume and the student’s hearing needs.
6. Slide the power switch to ON, and adjust volume. The Transmitter
may be clipped to a belt or pocket, or placed in the protective
Carry Case and worn at the waist.
LES 370 systems are available with eight different frequencies in four
pairs. Multiple Receivers will operate from one Transmitter, provid-
ing that all Receivers are channel-selected to match the Transmitter.
If you are experiencing interference on channel A, switch the Trans-
mitter and Receiver to channel B.
The frequency numbers listed below correspond with MicroLink™
frequency channels. Frequencies are paired as follows:
No 1 216.0125 & No 9 216.2125
No 12 216.2875 & No 18 216.4375
No 64 216.5875 & No 72 216.7875
No 77 216.9125 & No 80 216.9875