promethean Activesound One, Instruction Manual, Page: 16 / 44

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(9) Volume for external input (inside the battery case)
Signals from the external input terminal are adjustable with the volume.
(10) Frequency switch (inside the battery case)
Set the frequency of the infrared wireless microphone to the desired channel.
◎
“1” = 1ch “2” = 2ch “3” = 3ch “4” = 4ch
Typically set to Ch. 1 as primary Teacher Microphone.
(11) Volume controller selector switch
［
MIC SELECT
］
Select either [OWN] to control the microphone's volume directly or [OTHER] to control
another microphone's volume when the microphone's UP/DOWN volume switch is pressed down.
(12) Microphone infrared volume control
Adjust the audio level of the infrared wireless receiver in 2 dB steps in a range of +6 dB to -16
dB.
◎
Increase volume level when the
△
switch is pressed.
◎
Decrease volume level when the
▽
switch is pressed.
(13) Auxiliary input infrared volume control
Adjusts the audio level of the infrared wireless receiver in 2 dB steps in a range of +6 dB to -
16 dB. This control adjusts the overall level of the mixed auxiliary inputs.
◎
Increase volume level when the
△
switch is pressed.
◎
Decrease volume level when the
▽
switch is pressed.
● Uses two Panasonic NIMH AA rechargeable batteries.
● Use the specialized battery charger or the AC adapter for charging the NiMH batteries.
Charging time is approximately seven hours but may vary depending on the conditions of the
battery.
Operating Controls
AERC-07
Front View
4
1
12
2
8
6
5
7
13
11
9
10
Rear View
3