Tektronix 2235 - Adjust Χ10 Horizontal am P Lifier Gain; A D Ju St Magnifier R Egistration; Chec K Swee P Lengt H; Chec K Position R Ange

2 . A d j ust Χ 10 H orizontal Am p lifier Gai n ( R 754)
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5 . C h ec k P osition R an ge
α . Set :

α . Set :
H O R IZO N TA L M OD E

Α

Ch annel 1 AC-G N D-DC

DC
Χ 10 M agnifier

On ( k nob o u t)

Α SE C/DI V 10 AS
b . Select 10-As time mar k ers from t h e time-mar k
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b . Select 10- μ s time mar k ers from t h e time-mar k
generator .
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generator .
c .
Align t he nearest time mar k er to t h e first vertical grati-
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c . C HE C
K
-Start of t
h
e swee p can be p ositioned
to t he
cu le li n e wit h t he first graticule li n e .

rig h
t of t
h
e center
vertical graticule line
by
rotating t he H ori-
zontal P OSITIO N control fully cloc kwise .
d . ADJUST-X10 Gain ( R 754) for 1 time mar k er per
d ivisio n .
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d . C HE C K -T he 11t h time mar k er can b e p ositio ned to
t he left of t he cen ter vertical graticule line by rotating t he
H orizo n tal P OSITIO N control fully countercloc kwise .
3 . Ad ju st M ag n ifie r R egistratio n ( R 749)
α . Set t he Α SE C/DI V switc h to 0 .2 ms .
b . Select 1-ms time mar k ers from t he time-mar k
generator .
c . P osition t he middle time ma rker to t he center vertical
graticule line using t he H orizontal P OSITIO N control .
d . Set t he

X10 M agn ifier to Off ( knob in) .
e . AD JU ST- M ag R egis ( R 749) to p ositio n t he middle
time mar k er to t he center vertical graticule li ne .
f . Set t h eΧ 10 M agn ifier to On ( k no b o u t) an d CHE C K
for no h orizontal sh ift in t he time mar k er .
g . R e p eat p arts ε t h roug h f un til no furt h er improvement
is noted .
4 . C h ec k Swee p L engt h
α . Set :
C hann el 1 AC-G N D-DC

G N D
Χ 10 M agnifier

Off ( k nob in)
b . P osition t he start of t he swee p at t he first vertical
gratic u le li n e usi ng t h eH orizontal P OSITIO
N
co
n
trol
.
A d ju stme n t Pr oce du re-2235 Service
e . Select 50- μ s time mar k e r s from t he time-mark
generator .
f . Align t h
e 3
r
d
time mar k
er
wit h t he center vertical grati-
cu le line u sing t he H orizo n tal P OSITIO N con trol .
g .
Set t h
e

X10 M agnifier
to On
( kno
b
o ut) .
h . C HE CK - M agnifie d time mar k er can b e p ositio n ed to
t h e left of t he center vertical graticule li ne b y rotati n g t h e
H orizontal P OSITIO N control f u lly co u ntercloc kwise .
i . CHE
C
K -Start
of
t he sweep can b e p ositioned to t h e
rig h t of t he ce n ter vertical graticule li ne b y rotati ng t he Ho r i-
zo n tal P OSITIO N control fully cloc k wise .
6 . C h ec k V ariable R an ge
α . Set :
H orizontal P OSITIO N

M i drange
Α SE C/DI V 0 .2 ms
SE C/DI VV ariable

F ully countercloc kwise
Χ 10 M agnifier

Off ( knob in)
b . Select 0 .5-ms time mar k ers f r om t he time-ma rk
generator .
c . C HE C K-En d of t h e swee p is to t he rig h t
of
t h
e
11th
vertical graticule li n e .
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c . C HE C K -Time mar k ers are 1 d ivision or less apart .
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