Tektronix 5440 Instruction Manual page 35

13 . C
h
ec
k
10 ns Timing
ΝΟΤΕ
Α 5842 time-base or α time-base
h
aving α 10 ns
swee
p
must be use
d
.
15 . C
h
ec
k R
eadout
M
o d es
α . Disconnect t
h e bnc cable a
n
d 50 o
h
m termi
n
ation
from t
h e amplifier i
n
put con
n
ector and co
nn ect t
h
e time-
mar
k
ge
n
erator signal to t
h e input co
nn
ector .
b . Set t
h
e time-mar
k
ge
n erator for 10 nanosecond
mar
k
ers . Set t
h e d eflection factor of t
h
e amplifier so t
h
e
mar
k ers are at least five d ivisions in am p litu d e .
c . Set t
h e time-base unit for α swee p rate of 10 ns/div .
A d
j
ust t
h
e time-base triggeri
n
g control for α stable
display .
d . C
HE
C
K
-
F
or o
n e 10 nanosecon d mar
k
er per divi-
sion over t
h
e center eig
h
t graticule divisions of t
h
e d is p lay
(positio
n as necessary) . Swee p accuracy is ±5 ο/ο over t
h
e
entire swee
p
, exclu d ing t
h e first 30 and t
h
e last 100 ns of
t
h
e magnifie
d
sweep .
14 . Chec
k 5 ns Timi
n
g
S pecification and
P
erforma
n
ce C
h
ec
k
-5440
If t
h
e R ea
d out System was delete
d
from t
h
e instru-
ΝΟΤΕ
ment (O
p tion 1), omit ste
p
15 .
α . Set t h e time-base unit for α free-ru
n
ning swee
p
.
b . Set t
h
e
RE
ADO
U T I
N
T
EN
SITY co
n
trol for α visible
rea d out display .
c . Select dual-trace operation on t
h
e am p lifier .
d . C
HE
C
K
-T
h
at t
h
e c
h aracters are d isplaye
d
at t
h
e
to p an d bottom of t
h
e crt . C
h
aracters d o not touc
h
or
overla
p an d t
h
ey correlate to t
h e res p ective volts/ d iv d ial
settings .
e . R
otate bot
h CH
1 an
d
C
H
2 CA
L controls coun-
tercloc
k
wise .
f . C
HE
C
K
-T
h
at α > symbol is displaye d at t
h
e left of
t
h
e readout c
h
aracter .
R
etur
n
t
h
e CA
L
co
n
trols to t
h
e
calibrated p osition (fully cloc
k
wise) .
g . R otate t
h
e time-base MAIN
S E
C/DI
V
control
t
h
roug
h
out its ra
n
ge .
NOTE
h .
C
HE
C
K
-T
h
at t
h
e c
h
aracters are dis
p
layed at t
h
e
T
h
is ste
p can be performe
d
only wit
h
α time-base
to
p -center of t
h
e crt . C
h
aracters do not touc
h
or overla p
unit
h
aving α 5 ns swee p rate, suc
h
as Tektronix and t
h
ey correlate to t
h e respective s/div d ial settings .
5844 .
i .
R
otate t
h
e MAIN
V
A
R
IA
BLE control coun-
α .
P
ress t
h
e
P
O
WER
switc
h
to turnoff t
h
e Oscillosco p e tercloc
k
wise .
an d install an ap p ropriate time-base u
n
it in t
h
e
h
orizontal
com
p
artme
n
t . Pull t
h
e
P
O
WER
switc
h
to on .
j .
C
HE
C
K
-T
h
at α > symbol is d isplaye d at t
h
e left of
t
h
e readout c
h
aracter . R eturn t
h
e co
n
trol to t
h
e calibrated
b . Set t
h
e time-base unit for α swee p rate of 5 ns/ d iv .
p
osition (fully cloc
k
wise) .
Ad
j
ust t
h
e time-base triggeri
n
g co
n
trol for α stable
d is p
lay .
k .
P
us
h
t
h
e D
L
Y'D S
WP
p
us
h
button in on t
h
e time-
base unit .
c . C
HE
C
K
-
F
or one 5 nanosecon d mar
k
er p er d ivision
over t h
e ce
n
ter eig
h
t graticule divisions of t
h
e display
(
p
osition as necessary) . Sweep accuracy is ±6 ο/ο over t
h
e Ι .
CHE
C
K
-T
h
at c
h
aracters are dis p laye
d
at t
h
e to p -
e
n
tire sweep, excluding t
h
e first 30 an d
th
e last 100 ns of
rig
h
t of t
h
e crt a nd
th
at c
h
aracters d o not touc
h
oroverlap
t
h
e magnifie
d
sweep . a
n
d t
h
ey correlate to t
h
e dly'd sw
p
s/div dial settings .
d . Disconnect all cables . m . P us
h
the Display M ode button to MAIN SWP .
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