C R T Dis Pl Ay - Tektronix 5440 Instruction Manual

Adjustment-5440
α. Positio n t h e trace to th e center horizontal graticule
Co n trol Setti n gs
line .
C
R
T DIS
PL
AY
2 . A d
j
ust Trace Alig
n
me
n
t
Oscillosco
p
e
I
N TEN SITY
Midra n ge
b. CHE C K-T hat th e trace is aligned wit h t h e ce nter
F OC U S
M idra n ge
h
orizon tal graticule li n e.
GRAT I LLUM
M i
d
range
RE ADOUT I N TEN S M
idra n ge
c. AD JU ST-R OTATIO N (Trace)
R
375 to align t he
POWER
On
trace with th e center
h
orizo n tal graticule line . See Fig . 5-3
for ad j ustment location .
Position M idra nge
I np ut coupling
Dc
M ode
C H 1
Trigger C H 1
Main Triggering
Am p lifier U
nit
Time-B ase Un it
Slope +
M
o
d
e Auto
Trigger Source L
eft
Positio n As desi red
Mag
Χ1
Mai n Sec/Div 1 ms
Display
M
ode M ain Sw
p
1 . Ad just
F
ocus and Astigmatism
α . Set the I NTEN SITY co ntrol for α normal viewing
level .
b . Set the time-base Main Sec/Div switch to Amp (fully
counterclockwise) .
c. Turn the F OC US control fully cloc kwise .
d .
CHE CK- For α spot disp lay that is nearly round .
e. AD JU ST-Astig
R
370 and F OC US co ntrol together,
to obtain
t
he best defi n ed s pot d is p lay . See Fig . 5-3 for
a
dj ustme
n
t location .
d. P ress the POWER switc h
to turn off t h e
Oscilloscope .
3. Adj ust Geometry
α.
R
emove the time-base unit from the rig ht h
orizontal
com partment an d install it in t
he center vertical com part-
me nt.
b.
R
emove the vertical am p lifier un it from th e left
vertical com
p
artment a n
d
install it in the right h
orizontal
com p artment.
c . Pull the POWER switc h to turn on the Oscillosco
p
e.
d. Set the FOC U S and I NTEN SITY controls for α well-
defi n e
d trace, extending vertically above and below the
graticule area .
2139-08
1~
ε
`
s σ σ~
~ ρ
ο-
ο c~< W ~
(> ==(D
C'
C=f
R
365
R
370 , )
G
E O M ASTG ι + ,
R
375
TRAC E
R
OTATIO N - `
f. Set the time-base
M
ain Sec/Div switch to 1 ms .
F
ig . 5-3. Location of Geom, Astig, and Trace
R
otatio n
ad justments (Horizontal ci rcuit board).