Pub. 42004-730D
ICS Page/Party
®
AC Plug-in Amplifiers
Page 9 of 21
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Receiver Volume
To adjust the receiver volume:
1.
Remove the amplifier from the enclosure and place it on a stable surface.
2.
Open the amplifier (see the Open and Close the Amplifier section).
3.
The receiver volume potentiometer,
R5,
on the main PCBA, adjusts the signal level to the handset
receiver from the page or party lines.
N
OTE
:
The receiver volume potentiometer,
R5
, does not adjust the signal level to the Model 701-
304ICSVC auxiliary headset.
Audio Alignment
Set the normal speaker output level using a small screwdriver to make the adjustments through the access
hole, on the bottom of the amplifier (see Figure 10):
1.
Set DIP switch
SW2-1
to the off position.
2.
Set DIP switch
SW2-2
to the on position to enable a reference test tone.
3.
Adjust the speaker volume potentiometer,
R91
, on the main PCBA, to the desired audio level (see
4.
Turn the speaker volume potentiometer,
R91
, fully counterclockwise to mute the audio.
N
OTE
:
The station will not allow the adjustment if
LED2
on the VLC PCBA is on; indicating the system
VLC tone is present.
To set the VLC controlled speaker output level (see Figure 10):
1.
Set
SW2-1
to the on position.
2.
Set
SW2-2
to the on position to enable a reference test tone.
3.
Adjust the VLC volume level potentiometer,
R12
, (on the VLC PCBA) to the desired audio level.
4.
Turn the VLC volume level potentiometer,
R12
, fully counterclockwise to mute the audio.
5.
Set
SW2-1
and
SW2-2
to the off position to return to normal system operation.
Page Disable Control
Set
SW2-3
(see Figure 10) to the on position to disable local paging when the system VLC tone is
present.
Remote Output Switching (Available with RTU Only)
Set
SW2-4
(see Figure 10) to the on position to activate the RTU relay when the system VLC tone is
present.
