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Tektronix 454A User Manual

Tektronix 454A
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M
ai nt enance- 454zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA
‘
/
R
454A
3
.
R
emove
t
h
e
s
h
i el d
f r om
t
h
e
cast
at t en
u
at or
h
ousi ng
.
T
h
e
C
R
T
s
h
i el
d s h
oul
d
al so
b
e
h
andl e
d
car ef
u
l l y
.
T
h
i s
s
h
i el
d p
r ot ect s
t
h
e
C
R
T
d
i s
p
l ay
f r om
di st or t i on
d ue t o
mag-
net i c
i nt er f er ence
.
I f
t
h
e
s
h
i el
d
i s
d r o
pp
ed or
st r uc
k
4
.
R
emove
t
h
e
t wo
6- 32
k
e
p
s
nut s
t
h
at
r et ai n
t
h
e
cast
s
h
ar
p
l y,
i t
may
l ose
i t s
s
h
i el di ng
a
b
i l i t y
.
at t en
u
at or
h
ousi ng
t o
t
h
e
i nst r ument
f r ont
cast i ng
.
T
h
e
f ol l owi ng
p
r ocedur e
o u
t l i nes
t
h
e
r emoval
and
r e-
5
.
U
n p
l ug
t
h
e
d el ay
l i ne
co
n nect i ons
f r om
t
h
e
V
er t i cal
p
l acement
of
t
h
e
cat
h
o
d
e- r ay
t ube
:
P
r am
p
ci r c
u
i t
b oar
d
.
N
ot e
t
h
e or
d
er
of
r emoval
f or
r econ-
nect i on
.
6
.
R
emove
t
h
e
t wo
scr ews
at
t
h
e
r ear
of
t
h
e
ci r c
u
i t
b
oar d
.
7
.
R
emove
t
h
e
t wo
4- 40
h
ex nut s
an
d
t
h
ei r
f l at
was
h
er s
( a
d
j
acent
t o
t
h
e
V
er t i cal
M
OD
E
/ T
R
I GG
ER
swi t c
h
s
h
af t )
t
h
at
secur e
t
h
e
V
er t i cal
P
r eam
p
ci r cui t
boar
d
t o
t
h
e
i nst r
u
-
ment
c
h
assi s
.
8
.
L
i f t
up on
t
h
e
r ear
of
t
h
e
assembl y
an d
sl i
d
e
i t
out
of
t
h
e
i nst r ument
.
T
h
e
t o
p
si
d
e
of
t
h
e b
oar
d
an
d
t
h
e
at t en-
uat or s
can
now
be
r eac
h
e
d
f or
t r ou
b
l es
h
oot i ng
or
par t s
r epl acement
.
9
.
T
h
e
boar
d
can
now
be
r emove
d
f r om
t
h
e
V
er t i cal
P
r eam
p
u
ni t
as
f ol l ows
:
4- 1
2
±
.
Di sconnect
al l
p
i
n
connect or s
.
b
.
U
nsol
d er
al l
connect i ons
b
et ween
t
h
e
ci r cui t
boar
d
an
d
t
h
e
at t enuat or s
an d b
et wee
n
t
h
e
ci r cui t
boar d
and
t
h
e
V
er t i cal
M
OD
E
/ T
R
I GG
ER
swi t c
h
.
c
.
R
emove
t
h
e
r emai ni ng
scr ew
t
h
at
h
ol
d
s
t
h
e
V
er t i -
cal
M
OD
E
/ T
R
I GG
ER
swi t c
h
t o
t
h
e
ci r cui t
boar
d
.
d
.
R
emove
t
h
e
f our
scr ews
t
h
at
h
ol
d
t
h
e boar d t o
t
h
e
at t en
u
at or s
.
10
.
To
r e
p
l ace
t
h
e
uni t ,
r ever se
t
h
e or der
of
r emoval
.
Cor r ect
l ocat i on
of
t
h
e
pi n
connect or s
i s
s
h
own
i n
F
i gs
.
8- 1
t
h
r oug
h
8- 16
.
1
.
R
emove
t
h
e
t o
p
and
b
ot t om
cover s
an d
r ear
p
anel
( or
r ear
cast i ng)
as
d
escr i be
d p
r evi ousl y
.
2
.
R
emove
t
h
e
l i g
h
t
f i l t er
f r om
t
h
e
f r ont
of
t
h
e
C
R
T
.
3
.
Di sconnect
t
h
e
C
R
T
ano
d e
connect or
.
Gr oun
d
t
h
i s
l ea
d an d
t
h
e
ano
d
e
connect i on
t o d
i sc
h
ar ge
any
st or ed
c
h
ar ge
.
4
.
Di sco
nn
ect
t
h
e
t wo
gr o
u
nd
b
r ai ds
f r om
bet ween
t
h
e
C
R
T
s
h
i el
d
an
d
t
h
e
V
er t i cal
Am
p
l i f i er
c
h
assi s
.
E
i t
h
er
unsol
d
er
t
h
e
b
r ai
d
or
r emove
t
h
e secur i ng
nut s
f r om
t
h
e
sol
d
er
l
u
gs
.
5
.
R
emove
t
h
e
t wo
nut s
(
b
y
t
h
e
gr at i c
u
l e
l i g
h
t s)
w
h
i c
h
h
ol d
t
h
e f r ont of
t
h
e
C
R
T
s
h
i el d
t o
t
h
e f r ont
cast i ng
.
6
.
R
emove
t
h
e
gr at i cul e
l i g
h
t s
f r om
t
h
e st uds an d p
osi -
t i on
t
h
em
away
f r om
t
h
e s
h
i el
d
.
7
.
R
emove
al l
d
ef l ect i on
l eads
f r om
t
h
e
nec
k
of
t
h
e
C
R
T
.
B
e
car ef
u
l
not
t o
ben
d
t
h
e p
i n
connect or s
.
R
emoval
of
t
h
e
V
er t i cal
def l ect i on
l ea
d
s
can
be
f aci l i t at ed
b y
r emov-
i ng
t
h
e
t wo
secur i ng
scr ews
and
l ower i ng
t
h
e
V
er t i cal
Am
p
l i f i er
c
h
assi s
.
8
.
R
emove
t
h
e
C
R
T
soc
k
et
.
9
.
U
nsol
d
er
t
h
e
y- axi s
r ot at i on
l ea
d
s
at t
h
e
¥
Axi s
Al i gn
cont r ol ( on
t
h
e
r ear
s
u
b p
anel )
and
t
h
e
t r ace
r ot at i on
l ea
d
s
w
h
er e
t
h
ey
connect
t o
t
h
e
t r ace
r ot at i on
coi l
i n
t
h
e
C
R
T
s
h
i el
d
.
Cat
h
o
d
e-
R
ay Tube
R
e
p
l acement
.
U
se
car e
w
h
e
n
h
an d
l i ng
±
CR
T
.
P
r ot ect i ve
cl ot
h
i ng
and
saf et y
gl asses
10
.
R
emove
t
h
e
smal l
b
l oc
k
of
f oam
l ocat e
d
bet ween
s
h
o
u
l
d b e
wor n
.
Avoi
d
st r i
k
i ng
i t
on
any
o
bj ect
w
h
i c
h
t
h
e
C
R
T
s
h
i el
d
an
d
t
h
e
DELAY- TI ME
MUL
TI
PL
I
ER
mi g
h
t
cause
i t
t o cr ac
k
or i mp
l o
d e
.
Wh
en
st or i
n
g
±
CR
T,
p
ot ent i omet er
.
p
l ace
i t
f ace
down
on
±
smoot
h
s
u
r f ace
wi t h ± p
r ot ect i ve
cover
or
sof t
mat
un
d
er t
h
e
f ace
p
l at e
t o p
r ot ect
i t
f r om
scr at c
h
es
.
Do
not
b en
d
t
h
e
d
ef l ect i o
n
-
p
l at e
p
i ns
.
I f
t
h
e
p
i ns
11
.
L
oosen
t
h
e
t wo
h
ex- h
ea
d
scr ews
i nsi
d e
t
h
e
r ear
of
ar e b
ent ,
t
h
e
gl ass
seal
ar o
u
n
d
t
h
e p
i ns
may
be
cr ac
k
ed
,
t
h
e
C
R
T
s
h
i el
d
.
R
emove
t
h
e s
h
i el
d angl e
cl am
p
s
an
d
al l owi ng
t
h
e
C
R
T
t o
l ose
i t s
vac
uu
m
.
mount i ng
scr ews
.

Table of Contents

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Operator's Handbook20 pages

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Tektronix 454A Specifications

General IconGeneral
BrandTektronix
Model454A
CategoryTest Equipment
LanguageEnglish

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