Tektronix 2235 Operator's Manual

8 . Press i n and h old t h
e BEAM FI ND button ; t he d is p lay
s hou l d rea pp ear on t h
e sc
r
ee
n .
A dju st b ot h t he C h annel 1
a n d t he Horizontal POSITIO N
co
n
t
r
ols to cen ter t h e trace
b ot h bertically and h o r izo n tally .
Release t he BEAM F I N D
bu tton ; t he display s h ould remain
wit h i n t h e viewing area .
13 . Pull out t he C ha nn el 2 POSITIO N con trol k no b to
9 . A d ju st t he Α I NT EN SITY control countercloc k wise υη -

invert t
h
e C hann el 2 signal .
til t he display disa pp ea r s .
14 . Observe t h at t he dis p lay is α st r aig h t li n
e,
in
d icati
ng
10 . Press in and h old t he BEAM F I ND butto n ; t he dis-

t h at t he algeb r aic su m of t he two signals is
zero .
play s
h
ould
r
ea pp ea r . R elease t h e BEAM F I N D b utto n and
ad j ust t he Α I N T EN SITY co n trol to desire d d isplay
b rig h t n ess .

15 . Set t he C H 2 V O LTS/DI V switc h to 50 m V (1
Χ ) .
16 . O b serve t he 2-divisio n d is p lay, i n dicati ng t h at t h
e
al-
Using t he V ertical Section

gebraic sum of t h e two signals is no lo nger zero .
1 . Set t he C h a nn el 1 I np ut Cou p li n g switc h to GN D .
2 . Use t h e C hann el 1 POSITIO N cont r ol to a dju st t h e
tr ace to t he cen te r h orizo n tal gratic u le li ne .
3 . Set t h e C hann el 1 I np ut Cou p li n g switc h to DC .
4 . O b serve t h at t he bottom of t he dis p lay remai ns at t he
center h o r izontal g r aticule li n e (g r ou n d r efere n ce) .
5 . Set t he C h a nn el 1 I np ut Cou p li n g switc h to AC .
O p e r ati n g Pr oce dur
es-2235
ΑΝ /
US M -488 O pe r ato r s
12 . Select BOTH an d ADDVER TICA L M
OD Ea nd o b -
serve t h at t he resulting d isplay is 4 divisio n
s
i n
am
p
litude .
B ot h C h annel 1 and C hann el 2 POSITIO N
co n trols sh oul d
move t he display . R ece n te r t h e d is p lay
on
t h
e ε rt screen .
17 .
Pus
h
in t h eC h annel 2 POSITIO N con t r ol kn ob to
release it .
Observe α
noninverted
dis p lay h avi ng α 6- d ivisio n
signal
am
p
litude .
18 . Set b ot h C h annel 1 an dC h annel 2 Input
Cou p li ng
switc hes to G ND .
19 . Set t he CH 1 VO LTS/DI V switc h to 50 m V (1 Χ ) .
20 . Select ALT VER TICA L M OD E . Position t h
e C
h
a
nn
el
1 t r ace two divisions ab ove t he center graticule li n
e
and
position t he C h annel 2 trace two divisio ns below t he cen ter
graticule line .
6 . Observe t h at t he dis p lay is cen te r ed appr oximately at
t he center h orizo n tal li ne .
21 . R otate t he Α SE C/DI V switc h t hr oug hou t its range
(exce p t
Χ
-Y) . T h e dis p lay will alternate betwee n
C
h
a
nn
el
1
7 . R otate t h
e C
H 1 V
O LTS/DI V V a r ia b le con trol f u lly

and
C
h annel 2
at all swee p speeds . T h is mo d e is most u
se-
co u ntercloc k wise .

ful
for swee p s pee d s from 0 .05 ρι s to 0 .2 ms pe r divisio n .
8 . O b serve t h
at
minimum
vertical deflection occu r s w hen
22 . Select CH O P VER TICA L M OD E an d rotate t h
e
Α
t h eV O L TS/DI VV
a
r
iable cont
r
ol is f u lly cou ntercloc kwise .

S
E
C/DI V switc h t h ro ughou t its range (exce p t Χ -Y)
.
Α
dual-
trace
d isplay will be p rese n ted at all sweep spee d
s, but υη
-
9

li k
e t
h
e ALT mode, b ot h C h annel 1 a n d C ha nn el 2 signals
.
R
otate t he CH 1 VO L TS/DI V V aria b le control f u lly
cloc
k
wise to t he CA L d ete n t

are
dis p layed for eac h sweep on α time-s ha r ed
basis .
T
h is
.

mo de is most useful for swee p s p eeds from 0 .5 ms
to
0
.5 s
p e
r
d ivision .
10 . Select C
H 2
VER TICA L M OD E an d again p erform
pr ecedi ng ste p s 1 t hrough 9 u sing
C
h annel 2
controls . Pe r-

23 . Select C H 1 VER TICA L M OD E an d set C h annel 1
fo r ma nce s h o u l d b
e
similar
to C
h
annel 1
.

In p
ut Coupli n g switc h to AC . R ecenter t he display on t h
e
sc
r
een .
11 . Set b ot h CH 1 a nd CH 2 V
O
LTS/DI V
switc hes to 0 .1
(1 Χ ) for 2- d ivision d isplays .

24
.
Retu rn t he ΑS E C/DI V switc h to 0 .5 ms .

Tektronix 2235 Specifications

General

Brand	Tektronix
Model	2235
Category	Test Equipment
Language	English