PAGE 17
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
ADDRESSABLE MUTING SYSTEM
DIRECT MUTING
- Direct Muting may be accomplished by short-
ing the MUTE Terminal to the G Terminal through an external
switch. Each time the Muting Switch is closed the MUTE BUSS is
activated.
Fig. 17 - Direct Muting Terminals and Diagram
DIRECT MUTING
WIRING
DMA2015 M1 01
UNMUTE
MUTE
24V DC
250 MA
G
MUTING SWITCH M 1
5
23
MUTE
DELAY
3-6- SEC
Fig. 17B - M 1 Function Timing Diagram
MUTING TIMING
- The MUTING is preset for -60 db Attenuation.
When MUTE 1 isactivated the MUTE BUSS is instantaneously
Switched-ON. When the Muting is deactivated the program
source is gradually restored.
MUTE 1 (MUTE) = TIMING ADJUSTABLE 3-60 SECONDS
MUTE 1 DELAY = USE REAR PANEL CONTROL Reference 23
INSTALLATION AND WIRING
MUTE JUMPERS DEFAULT SETTING TABLE
S111
INPUT 4/AUX 2
-
MUTE 1 - OFF
M1
S112
INPUT 3/AUX 1
-
MUTE 1 - OFF
M1
S113
INPUT 1
-
MUTE 1 - OFF
OFF
S204
TEL
-
MUTE 1 - OFF
OFF
JUMPER
JUMPER
FUNCTION
FACTORY
FACTORY
ID NO.
REFERENCE
DESCRIPTION
SETTING
SETTING
MAIN PCB JUMPERS
MUTING SYSTEM -
The Amplifier is equipped with a noiseless,
fast acting Logic MUTING Switching System. When any of the
INPUTS are activated and a Signal is present on a given INPUT
and the VOX 1 is Switched-ON (using internal Jumpers) then the
MUTE 1 is ACTIVE. If any of the INPUTS have the MUTE 1
Switched-ON (by Internal Jumpers) then the INPUT (or INPUTS)
will be MUTED according to the Jumpers Setting. Once the SIG-
NAL-ON on the ACTIVE INPUT is terminated the normal functions
are automatically restored on all muted inputs.
ACCESS TO MUTE JUMPERS
REFER TO JUMPERS AND SWITCHES INTERNAL ACCESS.
CAUTION: PRIOR TO PERFORMING THE ABOVE OPERATION
BE SURE TO FOLLOW THE SAFETY NOTES REFERRING TO
THE REMOVAL OF THE AMPLIFIER COVER.
Signal
Level
MUTE
Terminals
shorted
Program
gradually
restored
Adjustable
from
3 to 60
seconds
Mute terminals
opened
time
DMA MUTE FUNCT 01
Program
Attenuation
60 dB
MUTE DELAY
- The MUTE Delay can be adjusted by using the
MUTE DELAY CONTROL on the rear panel (reference 23).
PROFESSIONAL AUDIO & SOUND
®
DIGITAL MUSIC AMPLIFIERS
DMA2015/2030/2060/2120