Tektronix 2213 - Page 83

Ad ju stment
P
roce d
ur e-2213 Service
5-1 8
f . Set T R IGG ER M OD E to N O RM .
g . C
HE CK -T R IG'D LE D is ill uminate d w
h
en α stable
d isplay
is present an d is off w h e n t h e d is p lay
is not
trigge
r ed .
3 . C h ec k Internal
Triggering
α . Set t h e CH 1 V O L TS/DI
V switc h to 2 m V .
b . Set t he ge ne
r ator
o
u tp u t to produ ce α 4- d ivisio n ,
2- MH z d isplay .
ε .
Set t h e CH 1 V O L TS/DI V switc
h to
20
m V .
d . C HE C K -Sta b le d is p lay can
b e o b tained b y a dju sting
t h e T R IGG
ER LEVEL control fo r eac h switc h com b inatio
n
give n in Table 5-9 .
f .

R epeat p art d .
i .

R
ep eat part d .
Table 5-9
Switch Com b i n ations
for Triggeri ng C h ec k s
e . M ove t
he gene r ato r out pu t from t
h
e CH
1
O
R Χ
in pu t con n ector to t
h e
C
H2 ORΥ input connecto
r . Set
VER TICA L M OD E to C H 2 .
g . Set the
S
E C/DI V switc h to 0 .05 μ s .
h . Set t he gene r ator to
produce α 1 .5- d ivision, 60-MHz
d is p lay .
j . M ove t h
e
ge
n erato r out p ut f r om t he CH 2 O R
Υ
in p ut con n ector
to t h e CH 1 O R Χ in pu t
connector . Set
VER TICA L
M OD E to C H 1 .
k . R
ep eat part d .
Ι .

Disco nn ect
t he test setup .
4 . C
h
ec
kE xternal Triggering
α .
Set :
VO
L TS/DI V ( b ot h )

10 m V
S
E C/DI V
20 μ s
VER TICA L M OD
E

C H 1
b . Co nn ect t he test setup as s
h own in F ig u re 4-1 .
ε . Set t he levele d sine-wave ge
n e r ator to p r o d u ce α
5-
d ivision, 50- kH z d is p lay .
d . Set :
S E C/DI V
SO UR C
E
VER TICA
L M OD E
f .

Set t he generator to 2 MH z .
i .

Re p
eat part g .
j . Set :
0 .2 μs
ΕΧΤ
C H2
e . M ove t
h
e
signal from t h e CH 1 O R
Χ i npu t conn ector
to t he ΕΧΤ I NPU
T connecto r .
g . C HE C K -Sta
b le d is p lay can be o b tai ned b y a dju sting
t h e T RIGG ER
LEVEL co nt r ol fo r eac h switch com b inatio n
give n i n Ta b le 5-9 .
h . Remove t he 10 Χ atte nu ato
r from t he test set up and
set t h e ΕΧΤ CO UPL I NG switc
h
to DC=10
.
VO L TS/DIV ( b ot
h )

50
m V
VER TICA L M OD E

C H 1
SE C/DI
V
20 μs
SO UR C
E
ΙΝΤ
REV N O V
1981
T R IGG ER
M
OD
E T R IGG ER SL O PE
N O R M
1
N O RM A -
AUTO
ί
A U TO f