Tektronix 454A - Page 149

F i g . 5- 6 . L ocat i o n of zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA ¥ AXI S
Al i gnme n t a d j u st me n t ( l ef t si de)
.
11 .
A
d j
ust C R T Geomet r y

b .
Connect t h e 10 § pr o b e t i p t o ¤¡ 1349 ( see F i g . 5- 5) .
± . Set t h e h or i zont al P OSI TI O
N an d t h e ‘ VA R I A BLE
cont r ol s so ± l ar ge mar
k er coi nci d es wi t h eac h ver t i cal gr at i -
cul e l i ne .
b . C HE C K - Geomet r y
at l ef t an d r i g h t edges of t h e
gr at i c u l e .
µ . AD JU ST- Geomet er y ad j u st m
ent , R 1482 ( see F i g .
5- 5 f or mi ni mum b owi ng of t
h
e
t r ace at t h e l ef t an d r i g h t
edges of t h e gr at i c u l e .
f . AD JU ST- C1352 ( see F i g . 5- 5) f or
o p t i mum s qu ar e
d . I N T ER ACTI O N - R ec h ec k st e p 10 .

cor ner on t h e u nbl an
k
i ng gat e .
e . Di sconnect
t h e t i me- mar k gener at or .

g .
Di sconnect
al l
t est e qu i pment .
N OT E S
Adj ust ment - 454A / R 454 ‘
f . P osi t i on t h e t r ace t o t h e t o p of t h e gr at i c u l e ar ea .
g . C HE C K - Devi at i on f r om st r ai g h t l i ne
s h o u l d not
exceed 0 . 1 d i vi si on .
h
. P
osi t i on
t h e t r ace t o t h e b ot t om of t h e gr at i cul e ar ea .
i . C HE C K - Devi at i on f r om st r ai g h t l i ne s h oul
d
not
exceed 0 . 1 d i vi si on .
j . Di sconnect al l t est e qu i p ment .
12 . A d j ust – Axi s Com p
ensat i on
± .
Connect t h e 10 § p r obe t o t h e i np u t connect or of t h e
t est osci l l oscope .
c . Set t h e t est
osci l l osco p e f or ± ver t i cal d ef l ect i on
f act or of
0 . 5 vol t / d i vi si on ( 5 vol t s/ d i vi si on wi t h pr obe) at ±
swee p
r at e of 0 . 1 mi cr osecon d / d i vi si on .
d . Set t h e I N T EN
SI TY cont r ol so t h e t est osci l l osco p e
d i s p l ay i s t h r ee
d i vi si ons i n am p l i t u d e .
e . C HE C K - Test osci l l osco p e
d i spl ay f or o p t i m u m
s qu ar e cor ner ( sl i g h t l y r o u n
d
e
d )
on
u nbl an k i ng gat e .