Catlbratlon Procedure-SC 502
Adjustment
Procedure
Adj ust
Time
C 1 005
until
a
d
i
s
p
l
a
y
of
o
n
e-
t
im
e m arker
per
major
g
r
a
t
i
c
u
l
e
division
is
obtai ned.
The
s
e
c
o
n
d
and
tenth m arkers
m ust
line
up
exactly
with
t hei r res
p
e
ct
i
ve
graticul e
l i nes.
C
h
an
g
e
the SECONDS/D I V
switch
and
t
h
e
marker
output
of
the
time-mark
generator
to
0. 2 liS.
Check the
SC
502
display
for
one-time m arker
per
major g
r
a
t
ic
u
l
e
division
(within 3%) i n
the
center 8
gr
a
t
i
c
ul
e
div
i
sions
.
Check
all
sweep
rates
between
0.2
JlS and S JlS.
usi n g
appropriate
time
markers,
a n d check di
s
p
l
a
y again
for one
marker
per
maj or graticule
d
i
v
is
i
o
n
(wit h i n
3%
for
O.S JlS
and 0. 2
J.lS
and
within
2%
from
1 liS
to
S
JlS) .
The
fi nal adjustm ent
of
Cl 00S m ay
need
to
be
a
com prom i se
so
that
the
t
im
e
markers
i n
the
center
8
gr
a
ti
c
u
l
e
divi sions
for
the above
s
w
e
e
p
ra
te
s
are
all
withi n
t
o
l
e
r
a
n
c
e
.
Disconnect
the time m
a
r
k
g
e
n
e
r
a
to
r
.
18.
Adjust
External
Balance R535 (Trfgger Circuit
Board)
�
To avoid possible damage to the crt
phosphor,
do
not allow a
bright spot to
remain stationary for an
extended period of time
within
the
viewing
area.
Set
the
SC
502
SECONDS/DI V
switch
to
5 m
and
r
o
ta
t
e
the
horizontal
positi on
c
o
n
tr
o
l
to
ali g n
the
start of
the
crt
trace
with
the far
left
gr
a
t
i
c
u
le
li ne.
Change
the
SECONDS/DIV
switch to A M P.
Set
the
I NTENSITY
l evel
such
that
the
crt
phosphor
wi l l
not
be
damaged.
Adj ust
EXT
Sal R53S
to
position
the
crt
spot
to
the
verti cal
graticule center l i ne.
1 9.
Adjust
External
Horizontal Attenuator
Com pensation
and
Gain C51 6
(Trigger Circuit
Board)
and R723
(Main
Circuit
Board)
Set the
SC 502
SECO N D S/DI V
switch
to
.2
m
and
the
t
r
i
g
g
e
r
i
ng SOU RCE
switch
to
EXT. Set
t
h
e
AUTO
trigger
mode push button to
its
out
positi on.
Connect
a
properly
termi nated
fast-ri se
signal
of
1
ms
peri od
from
the pulse
generator
to
the
EXT TRIG
i nput
connector.
Push the
TRI G VI EW
pushbutton
in and
hold
duri ng
t he foll owi ng
adj
ustm ent.
Adj ust
the
TR IGG ERI NG LEVEL
as
necessary
to
p
o
s
iti
o
n
the
w
a
v
e
f
o
rm
at
the
center
of
the crt.
Adj ust
pulse
generator
for a
5
div
d
i spl ay
.
Adj ust ATT C, CS1 6 for
a f l at
top on
the
waveform
without
any
overshoot
or
rol l off.
4· 1 4
Rel ease
the
TRI G
V I EW
p
u
sh
b
utton
and
set
t he
SECON DS/DIV
switch
to
AM P
and the
tri ggeri ng
SO URCE
switch
to CH 1 .
Discon nect
the
fast-rise
pulse
generator
si gnal
from
t
h
e
EXT
TR IG
i nput
connector
and
connect a
O. S
V
standardized
am pl it ude
Si gnal
from
the
pulse
g
e
n
e
r
a
t
o
r
to
the
connector.
Adj ust
horizontal POSITI O N
to
c
e
n
te
r
two
dots
on
screen.
Adj ust Ext
Gain
R723
for
exactly
10
maj or
graticule
divi sions
between t h e
t
w
o
crt spots.
D i scon nect
the pulse
generator.
20.
Adjust
Trigger
View
Centering
R433 (F & I
Circuit Board)
Set
the SC
S02
SECON DS/DIV
SWI TCH
to
5
f.J
and
push
the
AUTO
trigger
mode
pus hbutton i n . Connect a
proper l y
termi nated
si ne-wave
generator to
t h e CH 1
i nput
connector.
Set
the
output
frequency
of
the
si ne-wave
generat or
to
50 kHz
and adj ust
i
t
s
o
utpu
t
a
m
p
l
i
t
u
d
e
to
obtai n
6
major
divi sions
of
SC
S0
2
crt
d
i
s
p
l
a
y
.
Adj ust
the
tri ggeri ng
LEVEL to
t
rigg
e
r
the
si ne-wave si gnal
at
its
50%
point;
i.e.,
mi
dway
between
peaks. Depress
the
T
R
I G VI
EW
push
but
ton
and hold
it
in
during
the foll owi ng
adj ustment.
Adj ust
Trig
View (TV)
Center
R433
so
the
start
of
the
waveform
trace
on the
SC
502 crt
displ ay
i s
at the
horizontal
gr
a
t
i
c
u
l
e
center
l i ne.
Change
the
triggering
SLOPE
switch
to
m i n us
a
n
d
recheck
the
starti ng p
o
s
i
t
i
o
n
of
the
d i s p l ay
(TRIG
V I EW
pushbutton
sti l l
depressed).
The
fi nal
adj ustment
o f
R433
sho u l d
be
a
com prom i se
be
t
w
e
en the
display
starts
for
both
t he
+ and
-
SLO PE
switch
p
o
si
tio
n
s
.
Rel ease the TR IG VI
EW
pushbutton
and
c
h
a
n
g
e
the
position
of
the
tri ggeri ng
LEVEL
to
sel ect
anot her
t ri gger
i ng
p
o
i
nt
on
the waveform.
De
p
r
e
s
s
t he
TRI G
VI EW
pushbutton
and
check
that
the
displ ay corres ponds
to
the
pr
e
v
i
o
u
s
setti ng.
R
e
p
e
a
t
at
v
a
r
i
o
u
s
tri ggeri ng
LEV EL
poi nts.
Discon nect
the
s
i
n
e-
w
a
ve
generator.
This completes
the
adj ustm ent
p
r
o
c
e
d
u
r
e
for the
SC
502.
REV E APR 1 980
Summary of Contents for SC 502
Page 1: ...SC 502 OSCILLOSCOPE ...
Page 2: ......
Page 9: ...SC 502 1878 1 The SC 502 Oscilloscope xi REV APR 1982 ...
Page 10: ...Verso Filler Page z z ...
Page 32: ...Verso Filler Page z z ...
Page 34: ...Verso Filler Page z z ...
Page 63: ...Section 6 SC 502 OPTIONS There are no options available at this time REV A APR 1980 6 1 ...
Page 84: ...Beam R873 C473 Ext Bal R535 CH 1 Vert Po R335 CH 2 Vert Pos R394 ADJUSTft TP980 5 ...
Page 125: ...REV MAR 1 984 ...
Page 126: ...SC 502 m m o ...
