Tektronix 2235 - EXTERNAL Z-AXIS AND PROBE ADJUST

A
dju stme n t Pr oce dur e-2235 Service
E qu i p me n t
Req ui r ed (see Table 4-1) :
L
eveled Sine- W ave Generator (Item 2)

BN C Τ -Co nn ecto r (Item
8)
Two 50- Ω BN C Ca b les (Item 4)

10 ΧP robe ( p rovide d wit h i n
strumen t)
50-
Ω
BN C Te r mination (Item 5)
I N ITIA L
CO
NT
R O L S E TTI N GS

connector
.
T hen connect α 50- Ω cab le
and α 50- Ω termina-
tion from
t
h
e Τ -co nnecto r to t he ΕΧΤ Ζ AXIS
I NPU T con-
V ertical

nector on t he rear p a n el .
C han n el 1 P
OSITIO N

M i drange
VER TICA L M
OD E

C H 1
BW L I
M IT

Off (button
out)
C
H 1
V O L TS/DI V 1 V
C H 1 V
O L TS/DI V V aria b le

CA L
dete
n
t
C h annel 1
AC-G N D-DC

DC
H orizontal
E XT
ERN A L Z-AXIS
A N D PR O BE AD
JU ST
P OSITIO N

M i d ra n ge
H OR IZO
N TA L M OD E

Α

d . Disco nn ect t h e test eq ui p ment f r
om t he i n str u me n t .
Α
S
E
C/DI V 20 μ s
SE C/DI VV
aria b le

CA L detent
Χ 10 M agnifier

Off ( kn
ob
in)

2 .
C h ec k Pr obe A d ju st Op e r atio
n
Α T R IGG ER
VA RH O L
DO
FF

N O RM
M
ode

Ρ - Ρ A U TO
S
L
O
PE

O UT
LEVEL

M i d ra n ge
Α & Β ΙΝΤ

VER T M OD E
Α SO UR
C
E

ΙΝΤ
PR
OC ED URE ST EP S
1 . C h ec kE xte rn al Ζ
-Axis Ope r atio n
b . Set t he generator to p r oduce
α 5-
V ,
50- kH z signal .
c . C HE C K-F o r noticeable intensity
modulation . T h e
positive p art of t he si ne wave
s
h
o u l d be of lowe r i n tensity
t h an t he negative p art .
α . Set :
C
H
1 V O L TS/DI V 10 m V
Α
S E C/DI V 0 .5
ms
b . Co nn ect t he 10 ΧP robe to t h
e C
H
1 OR Χ in p ut con -
n
ector and i nse rt t h e probe ti p i n
to
t h
e PR O BE AD JUST
j ac k
on t
h
e instrument fr o n t p anel . If n
ecessary, ad j ust t h e
p
robe com
p
ensation for α flat-to p p ed s
qu a
r
e-wave dis p lay .
c . C HE C K -Dis p lay amplitu de
is
4 .75
to 5 .25 d ivisio ns .
α . Con n ect t h e leveled
sine-wave generator o u
tput via α
50- Ω ca b le and α Τ -con n
ector to t h eCH 1 O RΧ in p
ut con-

d . Disconn ect t h e probe f r om t h
e instrument .