BGW 150 - Gain Control Adjustment; Turn-On Transient Handling

05200-2
With
the
preamplifer
gain
controls
fully
off,
advance
the
left
and
right
power
amplifier
gain
controls
about
half
way
clock-wise
(slit
in
knob
facing
upwards).
There
ahould
be
no
audible
hum;
if
a
hum is
heard,
check
the
connections
between
the
power
amplifier
and
preamplifier.
Now
advance
the
preamplifier
gain
controls
until
the
desired
maximum
volume
is
achieved.
Should
the
preamplifier
gain
control
be
in
excess
of
the 3/4
setting,
decrease
it
to
half
volume
and
increase
the
gain
controls
of
the
power
amplifier
to
the
desired
level.
Often,
turn-on
transients
originate
in
the
pre-amp
or
tuner.
This
is
especially
true
of
tube-type
units.
If
this
situation
arises,
turn
the
amplifier
on
after
the
other
units
have
had
adequate
time
to
stabilize.