Australian Monitor AM1200 - Manual (Page 9)

Rear Panel
7. Balanced Input
A female 3-pin XL type connector is provided on
each input:
Pin 1 = Signal Ground;
Pin 2 = Hot (non-inverting or in phase);
Pin 3 = Cold (inverting or reverse phase).
7a.Signal Strapping
A male 3-pin XL type connector is provided on
channels A and D and is wired in parallel with the
female input XLR for strapping / looping signal
between amplifiers.
8. Bridge Switch
Pushing this switch in engages the BRIDGED/
MONO mode of operation for the relative pair of
channels. In this mode, your amplifier will only
accept signal applied to the Channel-A input XLR
(for channels A and B) or signal applied to the
Channel-D input XLR (for channels D and C).
Channel-A will now control the level of the A/B
bridged pair and Channel-D will now control the
level of the D/C bridged pair.
Speaker termination should be sourced from the
red binding-post outputs.
9. SPEAKON Output Connector
The NEUTRIK (NL4MP) 4 way SPEAKON connector
is provided as the main speaker output termination.
This emerging standard of loudspeaker to amplifier
connection allows access to both channels of the
amplifier via the one connector for bi-amp
applications. Channel-A (or D) is considered the
dominant channel and has both channels wired to
the Speakon connector. See the installation section
of this manual for detailed information on Speakon
wiring.
9a.Binding Post Outputs
Binding posts (banana jacks) are provided for
speaker output termination with banana plugs or
bare wire. The red post is used as positive and the
black post is used as negative.
10.Mains Lead
Your amplifier is supplied with a heavy duty mains
Controls & Connectors 9
lead (power cord) appropriately rated for the mains
supply voltage marked on the rear panel of your
amplifier.
The wires in the mains lead are coloured in
accordance with the following code:
BROWN = ACTIVE;
BLUE = NEUTRAL;
GREEN AND YELLOW = EARTH.
! CAUTION !
Your amplifier must always be earthed!
11.Mains Circuit Breaker
A “push to reset” thermal acting circuit breaker is
supplied on your amplifier providing overall protection
of your amplifier’s power supply and the
interconnecting mains. The breaker will isolate the
"active" mains conductor in the event of a high
current internal fault or in continued overload
conditions.
The breaker will not be able to be reset immediately
after tripping. A cool down period of around 30
seconds is required before the breaker will reset
back into circuit. If the breaker "trips" immediately
after a reset, then a fault may have developed within
the amplifier.
12.D.C. Rail Fuses
Your AM1200 amplifier is fitted with 8 Amp fuses per
rail - per channel, as overload protection for the
output stage of your amplifier.
These fuses are in series with the high current
supply rails to the amplifier's output stage and will
blow when:
1) An internal fault exists;
2) There is a sustained overload;
3) There is a sustained short circuit;
4) Sustained load fault.
Note: The front panel Fault Indicator will illuminate
and pulse in sync. with the program source if the
negative supply Rail fuse blows.
Distortion will result and the front panel Status LED
will illuminate RED if the Positive Rail fuse blows.
Replace only with 8 Amp, 3AG fast acting type
fuses.