Tektronix 2235 User Manual

A dju stment Pr oced ur e-2235 Service
line
by
rotati n g t h e C hann el 2 P OSITIO N con trol fully cloc k -

c . C HE C K -Display am p lit u de is
4 .2 divisions or greater
wise
and countercloc kwise respectively .

as t he generator o u t pu t fre q uency is increase
d
up
to t h e
val ue s
h own i n
Ta b le 5-5 for
t he corres po n ding V O L TS/DI V
switc
h
setting
.
f . M ove t he cab le from t he C H2 OR Υ input connector to
t h e C H 1 O RΧ input co n nector . Set t he VER TICA L M OD E
switc h
to
C H 1 .

Table 5-5
Setti n gs for B a nd wi d t h C h ec
k
s
e . M ove t he ca b le
from t h
e C
H 1
O
R Χ i n p u t co nn ecto r to
16 . C h ec k B an d wi d t hL imit Operatio n

t h e C H 2 O R Υ in p ut connector
.
Set
t h
e
VER TICA L M OD E
α . Set
:

switc h to C H 2
.
b . Connect t he leveled sine-wave generator out pu t
via
α
50- Ω cab le and α 50- Ω terminatio n to t h eC
H 1
O
R Χ input

α . Set :
con n ecto r .
c . Set t he gene r ator to p ro d uce α 50- kH z, 6- d ivisio
n
dis p lay .
d . Increase t he gene r ato r out pu t fre q uency
until t h e dis-
play am p lit ude dec r eases to 4 .2 divisions .
e . C HE C K -Generato r output fre qu e ncy is b etween 18
MH z and 22 MHz .
g . R epeat p arts d and e using t he C hann el 1 controls .
h .
Disconnect t h e test e q ui p me n t f r om t he instr u me n t .
ΝΟΤΕ
Install t he instrument ca b i n et for t h e remai
n i n g
vertical
c hecks a nd allow α 20-mi nu te warm-up period b efo r e
continuing wit h t he Ad j ustme n t Pr oce d ure . See t he
"Ca b inet" remove and r e p lace instr u ctions located in
t he " M ai n tenance" sectio n of t h e manual .
BW L I M IT

Off ( bu tto n out)
VO LTS/DI V ( b ot h )

2 m V
V
O
L TS/DI V
Switc h Setti ng
2 m V
5m V to5
V
Ge ne r ato r
O u
tp
u t Fr e qu e ncy
90
MHz
100
MHz
d .
R
epeat parts
b and c for all in d icate d CH 1
VO L TS/DI V switc
h
settings, up to
t he o u t pu t-voltage upper
limit of t he sine-wave generator
being
used .
V ertical P OSITIO
N (
b ot
h )

M
idrange
BW L I M IT

On
( b utton in)

f . R ep eat p arts b and c for
all in d icate d C H2 V O LTS/DI V
V
O
L TS/DI V V ariable (bot h )

CA L dete n t

switc
h
setti
n
gs, up to
t h e ou t pu t-voltage upper limit of t h e
AC-G
N D-DC ( b ot h )

DC

si
n
e-wave generator
being u se d .
Α SE C/DI V 20 As
18 . C h ec k C h an nel Isolatio n
V O LTS/DI V (bot h )

1 V
C h annel 1 AC-G N D-DC

GN D
Α SE C/DI V 0 .1 AS
b . Set t h e generator to p ro du ce α 50- MH z, 5- d
ivisio n
dis p lay .
c . Set t he VER TICA L M OD E switc h to C H 1 .
d . C HE C K -Display amplit ude is 0 .05 d ivisio n or less .
17 . C h ec k B a nd wi d t h

e . M ove t he cable from t h e CH 2 O R Υ in p ut connector to
α . Set :

t he CH 1 O RΧ in pu t co n nector .
f .
Set :
VER TICA L M
OD
E

C
H
2
b . Set t he gene r ator to p roduce α 50- kH z, 6-division

C
h
a
nn
el 1 AC-G N D-DC

DC
d is p lay .

C
h annel
2 AC-G N D-DC

G N D

Tektronix 2235 Specifications

General

Brand	Tektronix
Model	2235
Category	Test Equipment
Language	English