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plug.
The output is of an active, transformerless type with
an output impedance of 20 Ohms between pins 2 and 3.
When
driving
certain
transformer
coupled
loads,
It
may be
necessary to
install 287
Ohm 1%
build out
resistors in
series
with
pins 2
and
3 to
create
a 600
Ohm source
impedance
.
5.5.2
Balanced vs. Unbalanced Use
Although of balanced configuration, the inputs may be
driven single ended (unbalanced) on pin 2 or 3, tying
the
other pin to pin 1 ground.
It is recommended to use pin 3
to maintain phase matching with the outputs, which use pin
3 as high in the unbalanced mode.
A
rear
panel
switch
located
near
each
output
connector
converts
the
outputs
from
balanced
to
unbalanced.
In the unbalanced mode, Pin 2 is grounded and
Pin 3 1s driven high with a 6 dB increase in level.
This
equalizes
the
signal
level in
balanced
and unbalanced
modes, and
maintains the
output ceiling
calibration for
both modes.
5.6 AC Line Connector
A.C.
mains power is supplied
to the unit via an
integral
receptacle/fuse holder on the rear panel which meets all of
the
international safety
certification requirements.
Check to
be
sure
that
the unit
is configured
to
match your
A.C.
mains
voltage by inspecting the
voltage programming tag located
with
the fuse holder.
No power switch is provided on the unit
since
power can be removed by unplugging the power cord at the chassis
for maintenance.
5.6.1
Voltage Selection
As shipped,
the Studio
Dominator can
be adapted to
any standard AC mains
voltage simply by reprogramming
the
voltage programming card in the fuse holder.
This is
done
by the following procedure:
1. Remove the power cord from the chassis receptacle.
2. Slide the clear plastic cover to the left to uncover
the fuse compartment.
3. Remove the fuse by prying out the "fuse pull" lever.
4. Pullout the
small printed
circuit programming
The tag has four voltages
printed on it which are
tag.
100,
1 7
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