Tektronix 576 - Page 117

P erformance C h ec k /Calib r atio
n -Type 576
g . C HE CK F O R -S p ot centere d on graticule
h . AD JU ST- R 650, 1'S B A L a d j ustment, (see F ig . 5-6)
if t h
e
s p ot is not ce n
tere
d .
i . Set t he H O R IZO N TA L switc h to .5 V CO LLE CTO R .
j . C HE CKF O R -Spot centered on graticule .
k . AD JU ST- R 645, 5'S B A L ad ju stment, (see F ig . 5-6) if
t hesp ot is n ot ce n te r ed .
Ι . Set t he H OR IZO N TA L switc
h
to
2 V CO LLE CTO R
an d
rec h ec k t head j ustments ma d e in p arts α t h roug h k .
8 . A d j ust
B
ala
n
ce of
V
ertical
Dis p lay Am p lifier
α . Set t he DIS PL AY O FF S
E
T Selector switc
h
to
VER T
Χ 10 and position t he spot to t he center of t h e graticule
using t he F I NE P OSITIO N controls .
Χ 1
b . Set t h e DIS PL AY O FF S
E
T
Selector
switc
h
to
VER T
c . C HE
C K F
O
R -Spot
centered
ongraticule,
d . AD JU ST-19581, VER T C EN T a d ju stme n t, (see
F
ig .
5-6) if t
he
s p ot is
n
ot
ce n
te r
e
d .
e . R
ep
eat p arts α t h roug h d until no movement of t he
s p ot occ u rs betwee n t he two settings of t
he
DIS
PL
AY
O FF S
E
T Selector switc
h .
f .
Set t
h e
following Ty p
e
576 controls to :
DIS PL AY O FF SE T Selector

VER TΧ 10
VER TICA L 1 Α
g . C
HE CKF
O R -S p ot centered on graticule .
h .
AD
JU
ST-19550, 1'S B A Lad j ustment, (see
F
ig . 5-6) if
t he s p ot is n ot centere d .
i . Set t h e VER TICA L switc h to 2 Α .
j . C HE C K F O R -Spot centere d on gratic
u le .
k . AD JU ST- R 545, 2'S B A L a d j
ustment, (see F ig .
5-6)
if
t he s p ot is not centere d .
Ι . Set t
he VER TICA L switc h to .5 Α
an
d r ech ec k t he
a d ju
stments
ma d
e in p arts
α t
hr
o
ugh k .
9 . Ad j ust H orizontal CRT Gain
α . Set t he DIS PL AY O FF S E T Selecto r switc h to N O RM
(O
FF ) and t he P O L A R ΙΤΥ switc hto+( ΝΡΝ ) .
b . C HE C K FOR-Spot on zero vertical graticule line ±0 .1
d ivision .
c . AD
JU
ST- R 692, H O R 1
Ζ
O U T
PU T GAI
N ad j
ustme n t
(see
F ig . 5-6) if t h e s p ot is not on t he p resc r ibe d vertical
graticule li ne .
5- 1 0
d .
Set t heP O L A R ITY switc h
to
-( ΡΝΡ ) .
e C HE CK F O R -S pot on tent h vertical graticule line
±0 .1 d ivision
f .
AD
JU ST- R 692, H
O
R IZ
O
U T PU T GAI N
a d ju stme
n
t,
if sp ot is not on t he p rescribe d h orizontal g r atic u le line .
g . Set t h e POLARITY
switc h to +( ΝΡΝ )
a
nd repeat
p arts b t h roug h
f until 10 d ivisions of h orizontal d eflection
is obtaine d
between
t
h e
two
given p ositions of
t
he POLAR-
ITY switc h .
10 . A d j ust V ertical C R T Gain
α . Set t he P O L A R ITY switc h to
+(
ΝΡΝ ) .
b . C HE CK F O R -S p ot on zero h orizontal gratic u le line
±0 .1 d ivision .
c . AD JU ST- R 592, VER TO UT PU T GAI N a d ju stment,
(see F ig . 5-6) if t he spot is not on t he p rescribe d vertical
gratic u le line .
d . Set t he P O L A R ITY switc h to -( ΡΝΡ ) .
e . C HE CK FOR-Spot on tent h h orizontal graticule line
±0 .1 d ivision .
f . AD JU ST-8592, VER T O U T PU T GAI N a d ju stment,
if t he s p ot is not on t he p r esc r ibe d vertical graticule line .
g . Set t h
e P
O L A R ITY switc h to
+(
ΝΡΝ ) and re
p
eat
p arts b t
h
roug
h f u ntil
10 d ivisions of
vertical d eflection is
obtaine d between t h e two given positions of t he POLAR-
ITY
switc h .
h .
Set t
h e P
O
L
A R ITY switc
h
to AC
.
11 . A
d j
ust V ertical an d H orizontal M agnifier Gains
α . Set DIS PL AY O FF SE T Selector switc h to HOR IZ
Χ 10 an d p osition t he spot on t h e center vertical gratic u le
line wit h t h e h orizontal F I NE P OSITIO N cont r ol .
b . Switch t he C EN T ERL I NE VA LUE switc h between
t he 4
.5 and
t
h
e
5 .5
p
ositions
.
c . C HE CK F O R -S p ot d eflecte d 10 d ivisions h orizon-
tally,
w
h
en t
he C EN T ERL I
NE
V A LUE switc h
is switc h
e
d
from 4 .5
to 5 .5
.
d . AD JU ST- R 673, H O R IZ M AG GAI N a d ju stment,
(see F ig . 5-5) if t he s p ot d eflection is not co r rect .
e .
Set t
he
DIS
PL
AY O
FF
S
E T Selector switc h to VER T
Χ 10 and t h
e
C EN T
ERL
I NE
V
A
LUE switc h to 5 .
f . P osition t he spot on t he center h orizontal graticule
line with t he vertical F I NE P OSITIO N co n t r ol .
g . Switch t he C EN T ERL I NE V A LUE switc h between
t he 4 .5 an d 5 .5 p ositions .
Ο