BK Precision 1403A User Manual

ADJUSTMENTS
v
It
(A)
holding
the
CRT
mounting
plate
at
the rear.
4. Plaee a wide blade serewdriver
into
slit
(g)
to
turn the
CRT
mounting
plate,
until
the traee
is
parallel
with the
horizontal
gratieule
line.
5. Carefully tighten serews
(A),
observing
that the
traee does
not rotate
when the
serews
are tightened.
FREQUBN CY COMPENSATION
ADJUSTMENTS
1. Remove
the
ease
from the unit.
2.
Set
oseilloseope eontrols as
follows:
V ATT switeh to
1
(10
mV/DIV).
V GAIN
eontrol
fully eloekwise.
SYNC switeh
to
INT.
SWEEP RANGE switeh to
100-1
k.
3.
Appty
a
1
kHz
square
wave to the
VERT
INPUT
jaek.
Conneet the
signal eommon
to the
jaek.
Terminate
the
square
wave
It
generator
into its
eharaeteristie
impe-
o@
@a
Fig. 8.
Tlaee
Rotation
Adjustment.
4.
danee
(i.e.,
for a square
wave
generator
with an output
impedanee
of 50
ff termi-
nate
into
50 n).
Adjust
the output
level
of the
square
wave
generator
for a waveform
ampli-
tude of
6 divisions on
the CRT sereen.
Adjust
the SWEEP
VARI/EXT
GAIN
eontrol to
display two
to
four eyeles
of
the square wave.
Adjust
tne
$
POS and
+
POS
eontrols
to
position
thd display
in the eenter
of
the
CRT.
Adjust
trimmer
eapaeitor
TC103
for the
most ideal square wave
waveshape,
as
shown in
Fig.
9.
If
desired,
il additional
eheek for
proper
adjustment
of
high frequeney
eompensa-
tion trim m
er
TC103
may be
rnade as
follows. Conneet
a sweep
generator
having
a
flat
response
from
1
kHz to at
least
5 MHz
to
the
vertieal
input.
Adjust
the sweep
generator to
sweeP
from
1 kHz to 5 MHz and
externally
synehron-
ize the oseilloseope
sweep
to
the
trigger
output
of
the
sweep
generator.
The
fre-
5.
6.
1.
15

BK Precision 1403A Specifications

General

Brand	BK Precision
Model	1403A
Category	Test Equipment
Language	English