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Atlas AA240 Owner's Manual Page 12

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AtlasSound.com – 12 –
Specifications are subject to change without notice.
Owner’s ManualAA240 Mixer Amplifier
1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.
Telephone: 800.876.3333 • Fax: 800.765.3435
Quick Start Examples
Example 1 — System Paging, BGM, and MOH with Remote Master Level Control
This application has the paging microphone into INPUT 1, BGM (CD player) into Input 2, and a Message Repeater or MOH into Input 6.
The Zone 2 Output is sent to the telephone system's MOH input port. A level control is placed in another area such as a front desk to
adjust the system’s level without having to go the equipment room. When a page comes through Input 1, the BGM is muted allowing
only paging to be heard through the main system. The MOH is not affected during the page.
• Connect a paging mic to INPUT 1. Set Dipswitch “B” #6, “Input 1” to the “Mic” position.
Note: The INPUT 1 Trim and Sens will need to be adjusted after all the settings and connections have been set.
• Connect a BGM (CD) player to INPUT 2.
• Set Dipswitch “A” #6, “Mute Rcv” to the “ON” position.
• Connect a Message Repeater or MOH device to INPUT 6.
Note: The input sensitivity of this channel may need to be changed for proper level balance. Dipswitch “B” #1, “Input 6” allows
you to select between a 100mV or 300mV input sensitivity. Turn down channel 6 gain control on the front panel.
• Connect Zone 2 output to the MOH input on your telephone. Adjust the Zone 2 Output level as needed.
• Connect a wall mount volume control (Atlas Part Number AAVC-10K) to the terminals marked “VCA”.
Set Dipswitch “B” #8, “VCA” to “Master”.
Dipswitch Settings
Dipswitch 1
Off (Set To The Required Gain)
Dipswitch 2
Off (Not Affected)
Dipswitch 3
Off (Not Affected)
Dipswitch 4
Off (Not Affected)
Dipswitch 5
Off (Line)
Dipswitch 6
On (Mic)
Dipswitch 7
Depends On Mic Type
Dipswitch 8
Master
10
0
10
0
0 10
On
Off
Input 6
Input 5
Input 4
Input 3
Input 2
10
0
10
0
10
+
–
0
Bass
Treble
0
10
+
–
Input 1
Master
Power
PowerLimitPeakSignal
VCA
In/Out
Bridge
Sel
Zone 2 Out
Ω
1W 8
Ω
600
Remote
Mute
Input 2
Tr im
Input 3
Tr im
Input 5
Input 6
Off
On
Off
On
Off
On
Off
On
Input 2
On
Off
Line
Mic
Line
Mic
Line
Mic
Sens
Input 1
Input 2Input 3
Input 4Input 5 Phantom
On
Off
Input 6
1
2 3
4
5
300mV
100mV
6
7
Master
Line
Mic
Mic
Tel/Line
Off
On
Mute Rcv
Input 6
Input 5
Input 4
Input 3
VCA
51
2 3
4
8
Low Cut
6
Input 1
Sens
Input 1
Tr im
Input 4
Tr im
Input 5
Trim
Zone 2
Level
B
A
Line Out
Speaker Output 240W
Ω
100V70V25V4Com
+ +
G
+
R
L
Pre Out
Pwr In
Tape Out
Input 6
Input 4 Input 3 Input 2 Input 1
Unswitched Outlet
120V
~ 60Hz
Max 500W
Outlet Breaker
125V
~ 4A
Push Reset
G
+
G
+
G
+
G
+
+
G
120V AC 60Hz 700W
1601 Jack McKay Blvd., Ennis, TX 75119
(800) 876-3333 AtlasSound.com
CLASS 2 WIRING
To 70V Speakers
To PBX
Page Port
Remote Wall Mounted
Volume Control
From BGM
CD Player
Message Repeater
Paging Mic
For Unbalanced Wiring, wire
Tip to +. Wire shield out and
(—) together with
a jumper wire.
B
A
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