Atlas AA120, Руководство пользователя

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Specifications are subject to change without notice
AtlasSound.com
1601 JACK MCKAY BOULEVARD ENNIS, TEXAS 75119 U.S.A. • TELEPHONE: (800) 876-3333 • FAX: (800) 765-3435
©2006 ATLAS SOUND LP Printed in U.S.A. 000106 ATS002187 RevA 01/06 PP
OWNER'S MANUAL
AA120/AA240 MIXER AMPLIFIER
8
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
(mic position only).
Dipswitch 8 - When set to the " Master " position, the VCA control port acts as a over all 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.
11. Input 1 Sens
This control adjusts how sensitive the mute send circuitry on INPUT 1 reacts. Setting the control fully
counter-clockwise will lower the sensitivity, and a higher amplitude signal will be required at INPUT 1
to trigger the mute send circuits. Fully clockwise will raise the sensitivity of the mute circuits, where a
lower amplitude signal will trigger a mute send. Careful calibration of this control may be required to
fully utilize the mute circuits’ capabilities. Adjustment of this control should occur after the input trim
(12) for channel 1 is set.
12. Inputs 1-5 Trim
These variable controls allows fi ne tuning of the gain of INPUTS 1 – 5. There is 20dB of variable gain
available. The trim only applies when the input is set to the "Mic" position on the dipswitch.
13. Zone 2 Level
This rotary control will vary the signal level at the Zone 2 output terminals. Fully counter-clockwise (0)
is off; fully clockwise (10) is the maximum output level. The Zone 2 output gets its signal from INPUT
6, volume control.
Input 6
Line
Mic
Line
Mic
Line
Mic
Sens
Input 1 Input 2 Input 3 Input 4 Input 5 Phantom
On
Off
Input 6
1 2 3
4
5
300mV
100mV
6 7
Master Line
Mic Mic
Tel/Line
VCA
8
VCA
In/Out
Bridge
Sel
Zone 2 Out
¡
1W 8
¡
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 2 Input 3 Input 4 Input 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
5 1 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 120W
¡ 100V 70V 25V 8 Com
+ +
G +
R
L
Pre Out
Pwr In
Tape Out
Input 6
Input 4 Input 3 Input 2 Input 1
Unswitched Outlet
120V AC 60Hz
Max 500W
Outlet Breaker
125V AC 4A
Push Reset
G
+
G
+
G
+
G
+ +
G
120V AC 60Hz 300W
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