Tektronix 323, Инструкция по эксплуатации

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Calibration— Type 323
Tenth
vertical line
Eleventh
marker
Fig. 6 -1 6 . (A ) Typical CRT d isp la y when checking sweep length,
IB) locatio n o f sweep length and m a g n ifie d tim in g adjustments
(M a in b o a rd ).
e. Position the first ten-division portion of the total mag­
nified sweep onto the viewing area with the horizontal POSI­
TION control.
f. CHECK— One marker each division between the sec­
ond and tenth vertical lines. Marker at tenth vertical line
must be within 0.32 division (within 4%) of that line when
the marker at the second vertical line is positioned exactly.
g. Repeat this check for each ten division portion of
the total magnified sweep length.
h. INTERACTION— Check steps 36 and 38.
36. Adjust High-Speed Timing O
a. Install the calibration shield on the Type 323.
b. Set the TIME/DIV switch to 10 ps (X 1 0 HORIZ MAG
switch remains pulled out).
c. Set the horizontal POSITION control to midrange.
d. Set the time-mark generator for one-microsecond mark­
ers.
e. Set the TRIGGER control for a stable display.
f. CHECK— CRT display for optimum linearity and timing
between the sixth and tenth vertical lines (see Fig. 6-17A).
Sixth
vertical line
Tenth
vertical line
|
i
T
I
Cl
and tim ing w ith in this
(A )
area at 10 /x t/D IV I
(C)
Chock lin e a rity
-a n d tim in g w ith in t h i* “
»
area a t 5 /xs/D IV „
Second
I
— vertical line
■ ■ ■ ■
Left vertical ,
line
Tenth
vertical line
m i |» i 111111
-H -
Fourth
vertical line
mmammmm
-
Check lin e a rity
. and tim ing w ith in this
area a t 5 /is /D IV
Fig. 6 -1 7 . (A ) Typical CRT d isp la y showing correct high-speed
lin e a rity and tim in g a t 1 0 /x s /D IV , (B ) location o f high-speed tim ­
ing adjustm ents (M a in b o a rd ) , (C) typ ica l CRT d isp la y showing
correct high-speed lin e a rity and tim in g a t 5 /xs/DIV.
6-21