dbx 3BX - LED Display Board Calibration

7.3)
LED DISPLAY
BOARD
CALIBRATION
Short
the
input
to the 3B?.
(Note: The
input
can be
shorted
by placing
all
the
DB
step
switches
on the
Kron-Hite
4200
Oscillator
to
their "out"
positions.
Place
expansion
control
fully
to the left (1.0)
Rotate
R14 fully
CCW.
Rotate
RIO
CCW
until
red
led
lights;
note
position of
RIO
wiper.
Rotate
RIO
CCW
until yellow
led
lights;
note
position
of RIO
wiper
.
Position
RIO
wiper
equally
between
previously
noted
position
wax
RIO
and
R14.
(Note:
On
some
led
boards
it may be
necessary
to
rotate R14
slightly
CW
to
get the
yellow led to
light)
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