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PLA 240 Small Room Loop Amplifier
Volume
Level
Indicator
LEDs
Volume
Control
Volume Control
Use to adjust the volume of the signal received by the hearing aid. As the volume control
is moved the blue light will travel around the control indicating the volume level in use.
Tone Control
Power
Input
Use to vary the tone of the signal. When turned in a clockwise direction the higher
Jack
Terminals
frequencies will be emphasized, and in the counterclockwise position the lower
frequencies will be emphasized. As the tone control is moved the blue light will travel
around the control indicating the tone level in use.
Source Selection Buttons
Pressing any one of the input buttons (Mic Input, Line Input A Line Input B, Digital Input
C) will select the audio source connected to the amplifier on the corresponding jack on
the rear of the amplifier. One or more of these can be selected at any one time. When
the source is selected a blue light will show in the button. Press the button again and the
blue light will go out, indicating that source is off.
Microphone
Selecting this source will allow sound from the microphones connected to the mic jacks
on the rear of the amplifier to be heard through the system. When a microphone is
plugged into the "Mic B" jack, and the priority button is pushed, any sound received by
this microphone will override all other sources connected to the system. This can be
Volume
Level
Indicator
LEDs
Tone
IR Receiver
Control
(Remote control)
Loop
Headphone
Output
Jack
Audio Level
Indicator
Mic Input
Switch
Input A
Digital
Line
Input C
Input B
Jacks
Jacks
Power Button
Blue=On
Red=Off
Line
Line
Digital
Input B
Input C
Switch
Switch
Switch
Line
Mic
Input A
Priority
Jacks
Switch
Microphone
A & B
Jacks
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