Tektronix 576 - Page 120

e . Set t he Ty pe 576 VER TICA L switc h to .2 Α an d t he
H O R
IZO N TA L switc h to 1 V CO LLE CTO R .
f . P ress t he Ty pe 576 CA L button .
g . C HE CK
F
OR -Spot
locate d in t he intersection of t he
zero h
orizontal an
d
vertical graticule lines ±0 .15 divisions .
h . Set t h e Ty pe 576 VER TICA L switc h to .1 Α an d t he
H
O R
IZO N TA L switc h to .5 V COLLECTOR
.
i .
P ress t he Ty pe 576 CA L button .
j . C HE CK F OR -S p ot locate d at
t h e intersection
of
t h e
ze
r o h orizontal an d vertical
graticule lines ±0 .15 d ivision
h
orizontally
and
vertically .
k . R
elease
CA L button an
d p ress t he DIS PL AY IN-
VERT button .
Ι . C HE CK F
O
R -S p
ot
locate d at t he intersection of t h e
zero h orizontal and vertical g r aticule lines .
17 . C h ec k H orizontal an d V ertical Dis p lay
Offset an d M agnifier
α . Set t he following Ty p e 576 controls to :
VER TICA L

.5A
DIS PL AY O FF SE T Selector

HO
R IZ Χ 10
HOR IZO
N
TA
L 2 V CO LLE CTO R
DIS PL AY I NVER T

R elease d
POLARITY

+(NPN)
b . Set t he Calibration F ixture F unction switc h to H oriz
Am
p l Cal .
c .

P ress t he ZERO button an d center t he s p ot h orizon-
tally
on
t he graticule . R elease t he Z ER O button .
d . Tu r n t he Ty pe 576 C EN T ERL I NE V A LUE switc h
an d t
he Calibration F
ixture
Dis p lay Offset M ulti p lier
switc h , toget h er, t h roug hout t h eir ranges .
e
C
HE C K F O R -Spot centere d h orizontally for eac h
position of
t h
e
C EN T ERL I NE
V
A
LUE switc h wit h in t h e
tolerances s h own in Table 5-3 .
f . Wh en t he C EN T ERL I NE V A LUE switc h is set to
10,
p ress t he Z ER O butto n and be sure t he s p ot is centere d
h orizontally .
g . P ress t he CA L button .
h . C HE CK F OR -S p ot centere d h orizontally ±0 .5 d ivi-
sio n .
i . Set t he following Ty p
e
576 controls to :
DIS PL AY O
FF SET Selecto r

VER TΧ 10
C EN T ERL I NE VA LUE

0
CA L

R elease d
P erformance C h
ec
k /Calibratio n
-Ty pe 576
TA BLE 5-3
Acc u racy of Centerline V alue
j . Set t he following Calibration F ixture controls to :
Fu nction

V ert Am p l Cal
Calibration R ange

125 mV
Dis p lay Offset M ulti p lier

0
k . P ress t he Z ER O button an d center t he s p ot vertically
on
t h e graticule .
Ι . Turn t he Ty pe 576 C EN T ERL I NE VA LUE switc h
and t he Calibration F ixture Dis p lay Offset M ulti p lier
switc h , toget h er, t h roug h out t h eir ranges .
m
. C HE C
K F
O R -S p ot
centere
d
vertically
for
eac h p osi-
tion of
t h e C EN T E R L I NE VA LUE switc h wit h in t he toler-
ances
s
h
own
in Table 5-3 .
η . Wh en t he C EN T ERL I NE VA LUE switc h is set to 10,
p ress t he Z ER O button and be su r e t he s p ot is centere d
vertically .
ο .
P
ress t
h e Cal button .
ρ . C HE CK F OR -S p ot centere d vertically ±0 .5 d ivision .
18 . C h ec k H orizontal Dis p lay Accuracy
α . Set t h
e
following Ty p
e
576 co
n trols
to :
DIS PL AY O FF SE T Selector

N O RM (O FF)
HORIZONTAL

.05 CO LLE CTO R
V A R IA BLE CO LLE CTOR

F ully Counte r cloc k wise
S UPPL Y
PEAK P O WER W ATTS

220
MAX PEAK
VO L TS

1500
M OD
E DC
5-
1 3
C EN T ERL I NE VA LUE
Switch Se tting
Spot Ce
n tere
d
H orizo n tally
0 .5 ±0 .2 d
ivisions
1 .0 ±0 . 4 d ivisions
1 .5
±0 .5 d ivisions
2 .0 ±0 .6 d ivisions
2 .5 ± 0 .8 d ivisions
3 .0 ±0 .9 d ivisions
3 .5 ±1 .1 d ivisions
4 .0 ±0 .8 d ivisions
4 .5 ±0 .9 d ivisions
5 .0 ±1 .0 d ivisions
5 .5 ±1 .1 d ivisions
6 .0 ±1 .2 d ivisions
6 .5 ±1 .3 d ivisions
7 .0 ±1 .4
d ivisions
7 .5 ±1 .5 d ivisions
8 .0 ±1 .6 d ivisions
8 .5 ±1 .7 d ivisions
9 .0 ±1 .8 d ivisions
9 .5 ±1 .9 d ivisions
10 .0 ±2 .0 d ivisions