Atlas AA240 Bedienungshandbuch Seite 8

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Seitenansicht 7
AtlasSound.com 8
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
Rear Panel Description
10. Dipswitch “A” Positions 1–6
Understanding the functionality of the dipswitches is key to getting the most out of the AA240. Whether the switch is in the “Up”
or “Down” position is critical to the function of the amplifier.
Note: Mispositioning any of these switches may cause harm to the speakers or amplifier. We recommended all levels be
turned down prior to making any switch selections. Pay close attention to the two assignment charts and manual for
proper settings.
Dipswitch 1 - LOW CUT
When in the “ON” position, frequencies below 400Hz are attenuated at the rate of
6dB per octave.
Note: The rotary bass control is bypassed when the LOW CUT filter is on. We
suggest that when paging horns are connected to the AA240, engage the
LOW CUT filter to prevent the horns from operating below their cut off frequency.
When “OFF”, the amplifier operates full bandwidth.
Dipswitch 2–6 - MUTE RCV (RECEIVE)
When “ON”, Input's 2–6 signals will be muted upon a signal present on Input 1 (Refer to Number 11 Input 1 Sens), or a contact
closure on the remote mute terminals (Refer to Number 16 Remote Mute).
11. Dipswitch “B” Positions 1–8
Dipswitch 1
When set to the “100mV” position, the sensitivity of Input 6 is
suitable for inputting Telephone Paging Signals. When set to the
“300mV” position, the sensitivity of Input 6 is suitable for CD/DVD
player outputs.
Dipswitch 2–5
When set to the “Line” position, input sensitivity is suitable for CD/DVD line level inputs.
When set to the “Mic” position, sensitivity is suitable for microphone inputs.
Dipswitch 6
When set the “Tel/Line” position, Input 1 sensitivity is suitable for telephone paging and line level signals.
When set to the “Mic” position, the sensitivity is set for microphone signals.
Dipswitch 7
When set to the “OFF” position, PHANTOM POWER is turned off on INPUTS 1–5.
When set to the “ON” position, PHANTOM POWER (24VDC) is available on INPUTS 1–5.
Note: The Phantom Power when activated is present for both Line and Mic modes. In some Line source input application the
Phantom Power may cause popping. This can be corrected by adding a 10uf – 100uf / 50V electrolytic capacitor in series with
the input. Contact Atlas for an application note.
Dipswitch 8
When set to the “Master” position, the VCA control port acts as an overall system remote volume control, adjusting all the input
channels present on the master section mix bus up or down simultaneously. When set to the “Input 6” position, the VCA remote
control port affects only the level of INPUT 6.
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
Trim
Input 3
Trim
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
Trim
Input 4
Trim
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
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
Trim
Input 3
Trim
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
Trim
Input 4
Trim
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
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
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