AUSTRALIAN MONITOR KA1200, Руководство по эксплуатации

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Rear Panel
6 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).
6a Signal Strapping
A male 3-pin XL type connector is provided and
wired in parallel with the female input XLR for
strapping / looping signal between amplifiers.
7 Signal Ground Lift Switch
When this switch is engaged it disconnects signal
ground from the input connectors on both chan-
nels. It is intended to be used when “hum” is
caused by earth loops (due to different ground
potentials between source equipment and the
amplifier) or stray magnetic field pick up on the
input ground/shield wiring. (It does not interrupt
signal ground continuity on the strapping connec-
tor).
The amplifier should be turned off before
engaging this switch!
8 Binding Post Outputs
Touch proof 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 .
8a SPEAKON Output Connector
The NEUTRIK (NL4MP) 4way SPEAKON con-
nector is provided as an additional speaker output.
This emerging standard of loudspeaker to amplifier
connection allows access to both channels of the
amplifier via the one connector for bi-amp appli-
cations. Channel-A 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.
9 Mains Connection
Your amplifier is fitted with an internationally
recognised IEC mains inlet connector.
Please ensure that the connecting mains lead for
use with this connector is of an approved type and
is of sufficient current carrying ability.
Your
KA800 KA800 KA800 KA800 KA800 and KA1200 KA1200 KA1200 KA1200 KA1200 require a minimum mains
lead rating of 10 amps when operated from a 220
to 240 volt mains supply.
NOTE: Your unit must always be earthed!
10 Mains Fuse
A 20mm x 5mm fuse drawer is provided within the
housing of the IEC mains connector. When you
recieve your amplifier it will have a working fuse
and a spare fuse inside the fuse drawer. The
drawer can only be opened once the mains lead
is removed from the connector. The fuse is
provided to protect both the mains and your
amplifier as well as reducing the degree of damage
if an internal fault exists.
When replacing the fuse, replace with an anti-
surge (slow blow) type of the current rating
indicated on the back panel above the fuse holder.
Warranty does not cover a blown fuse or any
resulting damage due to an incorrect fuse rating
or type.
The
KA800 KA800 KA800 KA800 KA800
requires a 8 Amp Anti-Surge fuse.
The
KA1200 KA1200
KA1200 KA1200 KA1200 requires a 10 Amp Anti-Surge fuse.
11 Bridge Switch
Pushing this switch in engages the BRIDGED/
MONO mode of operation. In this mode your
amplifier will only accept signal applied to channel
A’s input XLRs and the level of both channels will
be controlled by channel A’s attenuator. The
output from channel B will automatically be of the
opposite polarity (reversed phase) and speaker
termination should be sourced from the red
binding-post outputs.
D.C. Rail Fuses
(Internally fitted)
Removing the bottom lid will show PCB mounted
fuse holders holding the rail fuse for each supply
to each channel. These 3AG “fast blow” type
fuses are in series with the positive and negative
supply rails for each channel of your amplifier’s
output stage. These fuses provide overall protec-
tion of the output stage and can also be used to
isolate individual channels in case a fault condi-
tion exists.
If you need to replace the rail fuses they must be
replaced with the same type and current rating:
KA800 KA800
KA800 KA800 KA800 = 8 Amp.
KA1200 KA1200 KA1200 KA1200 KA1200
= 10 Amp.
NOTE: Replacement of the fuses should only be
carried out by a competent and experienced
person.
Controls & Connectors 9