Tektronix 7B15 Instruction Manual page 105

c. Magnify the companion time-base unit sweep rate to 200
nanoseconds/division (MAG X10) and
position the
delayed-sweep time marker near the graticule center .
d .
CHECK---For 1 division
or less jitter .
(Jitter
specification is 0.02% of 1 ms delaying sweep setting or
200 ns .)
e. Set the companion time-base unit for X1 sweep
magnification (2 microseconds/division) . Set the DELAY
TIME control for a delay-time readout of approximately
9 .000 ms .
f. CHECK-.--Repeat parts b through d.
g . Set the companion time-base unit sweep rate to 20
nanoseconds/ division and magnification to X1 . Set the
time-mark generator for 0.1 microsecond markers.
h . Set the 71315 TIME/DIV switch to 10 ps .
i. Set the DELAY TIME control for a delay-time readout of
approximately 10 .00 ps .
j . Set the DELAY TIME control further to position a
delayed-sweep time marker near the display center .
k. Magnify the companion time-base unit sweep rate to 2
nanoseconds/division (MAG X10)
and
position the
delayed-sweep time marker near the graticule center .
I . CHECK--For
1 .5 division or
less jitter .
(Jitter
specification is 0.03% of 10 Ns delaying sweep settings
or 3 ns .)
m .
Set the companion time-base
unit sweep
magnification to X1 (20 nanoseconds/division). Set the
DELAY TIME
control for a
delay-time readout of
approximately 90 .00 ps .
n. CHECK---Repeat parts j through I.
o. Set mainframe horizontal mode to A and the 71315
time base B DELAY MODE to INDEPENDENT.
131'7 . CHECK SWEEP TIMING
SETUP CONDITIONS
NOTE
Partial procedure: first perform the Horizontal
System Preliminary Control Settings, then
proceed with the following instructions.
71315 Controls :
REV A MAY 1979
TIME/DIV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Table 5-7
BNC
Cable
Vert
Amp
F-°O
Oscillo-
scope
Main-
frame
71315
Vertical Amplifier (HI Freq) . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V/div
Time-Mark Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . See Table 5-7
The tolerances given in Table 5-7 are for an
ambient temperature range of +15°C to
+35°C. If outside this
range, see
the
Specification section for applicable
tolerances .
a . Set the
POSITION controls to
midrange and
TRIGGERING MODE to NORM .
b. CHECK----Using the TIME/DIV setting and time-mark
generator settings from Table 5-7, check sweep accuracy
for 1 time mark/division over the center 8 divisions
within the tolerance given in Table 5-7. Set the
POSITION controls and TRIGGERING LEVEL controls as
necessary for a stable display aligned with the vertical
graticule lines .
If the time-mark generator used does not
have 1-2-5 sequence markers, apply 1 unit
markers in place of 2 unit markers and check
for 2 markers/division, over the center eight
divisions of display, to the tolerances given in
Tables 5-7 and 5-8 .
Calibration Part II----71315
Adjustment and Performance Check
NOTE
NOTE
.1 ms
.1 ms
.2 ms
-
.5 ms
.5 ms
2 ms
2 ms
_
_ . _
5ms
5ms
-__
,
__ _
- -
10 ms
10 ms
M
_
20 ms
20ms
Within 0.24 div
Within 0.16 div
Within 0.16 div
Within 0.16 div
-----------
Within~0 .16 div
_Within 0.1
_
6 div _
m
Within 0.16div
Within 0.16 div
Within 0. 16 div
~Within 0.16 div
Within 0.16 div _
T Within 0.16 div
_
T
Within 0.16 div
Within 0.16 div
AWithin 0.16 div
5-39
_
50 ms
50 ms
__s_ ._._ .. . .
:..1_
. 1 S
_:. 1 s.__
_. :1 S
.2s
.2 s