Tektronix 2235 User Manual

Table 4-4

i . U se the H orizontal P OSITION control to
align t
he
first
Settings for Timing Accuracy Checks

time marker that is 25 ns b eyond the start of the swee p
with
the secon d vertical graticule line .
Time-Mark
Generator Setting
SEC/DIV
Switc h Setti ng

N o r mal

Χ 10 M ag n ifie d
g . Set :
0 .05 As

50 ns

10 ns
0 .1 As

0 .1 AS

10 ns
0 .2 μs

0 .2 As

20 ns
0 .5 As

0 .5 μ s

50 ns
1 μs

1 μ s

0 .1 μ s
2 μs

2 μ s 0 .2
μ
s
5 μs

5 μ s 0 .5
μ s
10 As

lops

1 AS
20 As

20 As

2 As
50 As

50 As

5
As
0 .1 ms

0 .1 ms

10 As
0 .2 ms

0 .2 ms

20 As
0 .5 ms

0 .5 ms

50 As
1 ms

1 ms

0 .1 ms
2 ms

2 ms

0 .2 ms
5 ms

5 ms

0 .5 ms
10 ms

10 ms

1
ms
20 ms

20 ms

2 ms

2 . C h ec k V ariable R an ge a nd Swee p Se p aration
50 ms

50 ms

5
ms

α . Set :
0 .1 s
0 .2s
0 .5s
Α Swee p Only
0 .1 s
0 .2s
0 .5s
ΝΟΤΕ
f . R ep eat parts ε t h roug h e fo r t he r emaining Α SE C/DI V
and time-mar k generato r setting com b i n ations sh own in Ta-
ble 4-4 under t he " N ormal" col u m n .
P erformance Check
Procedure-2235 Service
j . CHECK-Timing accuracy is within 3% (0
.24 division
at t h e 10t h vertical gratic u le line), and linearity is wit
h in
5%
(0 .1 division over any 2 of t he cen ter 8 divisions) . E xclude
any p ortion of t he sweep p ast t he 100t h mag
n ified division .
k . R ep eat p arts i and j for t h e remaining Α SE C/DI V and
time-mar k generator setti ng combinatio n s sh own in Ta b le
4-4 under t he " Χ 10 M agnified" col u m n .
Ι . Set :
H O R IZO N TA L M OD E

Β
Α SE C/DI V 0 .1 As
Β SE C/DI V 0 .05 μs
Χ 10 M agnifier

Off ( knob
in)
m . R ep eat p arts b t h roug h k for t he Β Sweep . K eep t he
Α SE C/DI V switc h one setti ng slower t han t he Β SE C/DI V
switc h .
H O R IZO N TA L M OD E

Α
Α and Β SE C/DI V 0 .2 ms
10 ms

S E C/DI V V aria b le

Fu lly cou n tercloc kwise
20
ms

Χ 10 M agnifier

Off ( k no b in)
50
ms

Α TR IGG ER M ode

Ρ - Ρ A U TO
b . Select 0 .5-ms time mar k ers from t he time-mar
k
generator .
F or c h ec k ing t he timing acc u racy of t he Α S E CIDI V
switc h settings from 50 ms to 0 .5 s, watc h t
h
e time

c . C
HE
C
K -Time mar ke r s a r e 1 division or less apart .
mar k er tips only at t he 2ndand 10t h vertical graticule
lines w h ile a dju sti ng t he H orizontal POSITION contr ol .
d . Set :
C h annel 1 AC-G
N D-DC

G
ND
S E C/DI V V aria b le

CA
Ld etent
H O R IZO N
TA L M
OD
E

AL T
e . Use t he C h annel
1 P
OSITIO
N control to set t he Α
Swee p at
t h
e center
h orizontal graticule line .
Α SE C/DI V 0 .05 μs
Χ 10 M agnifier

On
(kn
ob out)
f . C HE
C K -T h
e
Β Sweep can b e p ositioned more t han
3 .5 divisio
n
s above an
d b elow t he Α Swee p wh e n t he Α / Β
h . Select 10-ns time mar k ers from t he time-mar
k

SWP
SEP control
is
r otated fully cloc k wise and coun ter-
generator .

cloc
k wise res p ectively .
4-9

Tektronix 2235 Specifications

General

Brand	Tektronix
Model	2235
Category	Test Equipment
Language	English