Tektronix 2213 - Page 76

ε . A dj ust t he ge n erator outpu t for α 5- d ivision d is p lay .
d . P reset H ig h Fre q Comp ( R 357) fu lly co u nter-
cloc k wise .
e . AD JU ST- H ig h Fre q Com p (C357) u ntil ringi ng ju st
disa pp ears on t h e front corner .
f . AD JU ST-
L
ow Fr eq Comp ( R 367) and M i d Fr e q
Com p ( R 366 a nd
C366)
for best flat top b eyon d 20 ns
i .

Set t he CH2 V O L TS/DI V switc h to 0 .1 V a nd re p eat
parts f an d g for b est com p romise with t h e 20-m VVO L TS/
DI V switc
h
setti ng .
j .

Disconn ect t h e test set up .
b . Connect t h e leveled sine-wave generator outpu t vie
α 50- Ω ca b le a nd α 50- Ω terminatio n to t h e CH 2 O R Υ
in pu t connector .
ε . Set t
h
e generator out p ut
for
α
5- d ivisio n ,
50-
kH z
d is p lay .
d . Increase t he ge n erato r fre q uency until t
h
e display
re du ces to 3 .5 d ivisio n s .
e . M ove t he sig n al from t h e CH 2 O R Υ i nput conn ector
to t
h
e C
H
1 O
R Χ in pu t con n ecto r . Set t he VER TICA L
M OD E switc h to C H 1
.
f . AD JU ST-C H 1 & CH 2 HF M atc
h
(C167) for α
vertical d is p lay amplitu de of 3 .5
divisions
.
A
dju stment Pr
oce d
ur
e-2213 Se
r vice
g . Set bot
h V
O L TS/DI
V switc h
es
to
2
m V .
h . Set t he generator ou tpu t amplit u de fo r α 5- d ivision,
50- kH z d isplay .
i .
C
hange the generator out p ut fre q ue ncy to t h e val u e
s
h own in Ta b le 5-5 for t he co rr espo nd ing V O
L
TS/DI V
switc h setti ng .
Ta b le 5-5
η . Discon n ect t he test set up .
j .

C
HE
C
K -Dis p
lay
amplitu d e
is 3 .5 d ivisio n s or g r eater .
k . Re p eat p arts h t hr oug h j fo r all i nd icate d C H 1
V O L TS/DI V
switc h
setti
n
gs, up to t he ou t pu t-voltage
u p p er limit of t
h
e si n e-wave generator being use d .
13 . C h ec k Common-
M
ode R
e j
ectio n R atio
α . Set b ot
h V
O
L
TS/DI
V switc h
es
to
20
m V .
b .
Connect α 10-MHz, levele d sine-wave signal via α
50- Ω ca b le, α 50- Ω te r min atio n , a n d α du al-i npu t coup le r
to t
h
e CH 1 O
R Χ
an
d t he
C
H
2 O
R Υ in pu t connectors .
ε . Set the gene r ato r o ut p u t am p lit ud e to p r o du ce α
6- d ivision d isplay .
d . V ertically cente r t he display usi ng t he C ha n nel 2
P OSITIO N control . T h en set VER TICA L M OD E to C H 1
5-
1 1
from t he corner .
Settings fo r B andwid t h
C
h
ec
k
s
V O L TS/DI V Ge ne r
ator
g . AD JU ST- R 357
a
nd C357 for b est corner
on
t he
Switch Setti n gs Out pu t F re que n cy
first 20 η
3
of th e
d is p laye d
sig n
al
.
2m V to10m
V
50 MHz
h . R ep eat p arts f a nd g until no f u rt h er improvement
20 mV to10
V
60 MH
z
is note
d .
12 . A dj ust C h annel M atc h ing (C167) an d C h ec k Ι
.
M ove t h
e
generato r ou tput sig n al from t he CH 1
Ba nd wi d t h
O R Χ i npu t con n ector to t he CH 2 O R Υ inp u t conn ector .
Set : α .
Set t h e VER TICA L M OD E switc h to CH2 .
V O L TS/DI V (bot h) 20 m V
m .
R
ep
eat p arts
h
t
h ro ug
h j
for
all indicated C H 2
S E C/D 1 V 20 μ s
V
O L TS/DI
V switc h setti n gs up to t he out pu t-voltage upp er
limit of t he si n e-wave ge n erator b ei ng use d .