LightSpeed Technologies 820iR, Руководство пользователя

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8 2 0 i R U s e r M a n u a l
21 | 820iR User Manual
4.
While
speaking in a normal voice
slowly increase the volume of the
corresponding channel on the 820iR
until your voice is barely audible.
REMEMBER: This equipment
supplements the user’s voice so they are able to speak in a conversational tone.
Having the volume set too high will result in feedback and listener fatigue.
POWER
A VOLUME B VOLUME TV/VCR CD/DVD ASSISTIVE LISTENING
IR IR AF AF
WIRELESS MICROPHONE VOLUME AUDIO INPUT VOLUME ALD VOLUME
LES 820iR Classroom Amplification System
INITIAL SET-UP: REDMIKE
SPEAKER OUTPUTS
250 400 700 1K 1K4 2K5 4K 6K
+10
0
-10
OFF OFF OFF OFF ON ON ON ON
VOL.
ADJ.
ALD OUT AUX OUT
VOL.
ADJ.
COMPUTER
AUDIO INPUTS
TV/VCR CD/DVD
800iX
INPUT
PAGING INPUT
ADJ
DC POWER CHARGERS
24VDC
L L R R
SENSOR INPUTS
SENSOR
SHORT
1 2 3
4
5. Once initial volume level is set, walk
around the room and listen for audio
dropout and overall audio quality.
Fine-tuning the audio is accomplished by
making minor adjustments to the 8-Band
Graphic Equalizer on the back panel of
the 820iR.
6. If a second REDMIKE was
purchased, repeat steps 2-4.
NOTE:
Each REDMIKE has its
Channel pre-set to either A or
B. No further adjustment is
necessary.
See page 12 for hints on setting the EQ.
1. Turn the 820iR power switch to the
ON position. The RED LED on the
switch will glow.
2. Turn on the REDMIKE. The RED IR LED on the
820iR will light to indicate a signal is being
received.
POWER
A VOLUME B VOLUME TV/VCR CD/DVD ASSISTIVE LISTENING
IR
IR
AF
AF
WIRELESS MICROPHONE VOLUME AUDIO INPUT VOLUME ALD VOLUME
LES 820iR Classroom Amplification System
POWER
A VOLUME B VOLUME TV/VCR CD/DVD ASSISTIVE LISTENING
IR IR AF AF
WIRELESS MICROPHONE VOLUME AUDIO INPUT VOLUME ALD VOLUME
LES 820iR Classroom Amplification System
3. Slip the REDMIKE with lanyard around the neck
and position the top of the microphone just below
the collarbone.
NOTE:
Positioning of the REDMIKE is
critical for proper volume adjustment.