Tektronix 2221 - Page 148

Appendix A -- 2221 Operators
g . Repeat part
d .
f . CHECK - Stable
display cannot
be
obtained by
adjusting
the
TRIGGER
LEVEL
control
for
each
switch
combination given
in Table A
- 6 .
h . Set :
UU
SEC
/
DIV
X10
Magnifier
0.05
us
On
(
knob
out )
g .
Set :
VERTICAL MODE
INT
CH 2
CH
2
|
i . Set the
generator to
produce a 60
MHz , 1.0 -
division
display .
h . Move the cable from the CH 1 OR X input connector
to the CH 2 OR Y input connector .
j .
Repeat part d .
i . Repeat part f .
41
k .
Set :
j . Disconnect
the test
equipment
from the
instrument .
VERTICAL MODE
INT
CH 1
CH 1
3.
Check
External
Triggering
a .
Set
:
1. Move the cable from the CH 2 OR Y input connector
to the CH 1 OR X input connector .
CH 1
5 mV
0.1
us
m .
Repeat part d .
VERTICAL MODE
CH 1 VOLTS / DIV
SEC / DIV
HF REJECT
INT
SOURCE
OFF
CH 1
EXT
n . Disconnect the test equipment from the instrument .
بال
2.
Check
HF
Reject
Triggering
b . Connect the leveled sine - wave generator output via
a 50 2 cable , a 50 2 termination , and a dual - input coupler
to both the CH 1 OR X and EXT INPUT connectors .
a .
Set
:
50 mV
5
us
VOLTS /
DIV (
both )
SEC / DIV
X10
Magnifier
TRIGGER Mode
TRIGGER LEVEL
C. Set the leveled sine - wave generator output voltage
to 40 mV and the frequency to 10 MHZ .
Off (
knob in )
NORM
Midrange
d . CHECK - Stable display can be obtained by adjust
ing the TRIGGER LEVEL control for each switch combina
tion given in
Table
A - 6 .
b .
Connect the low
-
frequency
generator
output via a
50 12 cable and a 600 2 termination to the CH Ť OR X
input connector .
e .
Set :
c . Set the
low -
frequency
generator
output
to
produce
a
250
kHz
,
1 -
division
display .
CH 1
VOLTS
/ DIV
X10
Magnifier
50 mV
On (
knob out )
C
d . Adjust the TRIGGER LEVEL control for a stable
display
.
f . Set the generator output voltage to 120 mV and the
frequency
to 60
MHz .
e . Set HF REJECT switch to ON .
g .
Repeat part
d .
A - 16
C