Tektronix 2221 - Page 137

Appendix A - 2221 Operators
Л
П
O
2.
Check
Store
Deflection
Accuracy
C. Set the SAVE / CONT switch to SAVE .
a .
Set :
CH 2 VOLTS / DIV
STORE / NON - STORE
2
mV
STORE (
button
in
)
d . Set the CH 1 VOLTS / DIV switch to 10 mV and
reposition the display .
e . CHECK - The display is expanded to 5 divisions in
amplitude .
b . Use the CURSORS control and SELECT C1 / C2
switch to set one cursor at the bottom and the other
cursor at the
top
of the
square
wave
.
f .
Set
:
C. CHECK - Deflection accuracy is within the limits
given in Table A - 3 for each CH 2 VOLTS / DIV switch set
ting and corresponding standard - amplitude signal .
CH 1 VOLTS /
DIV
SAVE / CONT
0.1 V
CONT
g . Set the
generator
to
produce a 5
division
standard
amplitude
signal .
П
п
1
d . Move the
cable from
the CH 2 OR
Y input
connector
to the CH 1 OR X input connector . Set the VERTICAL
MODE
switch
to CH
1 .
h . Set the SAVE / CONT switch to SAVE .
d . Repeat parts b and c using the Channel 1 controls .
i . Set the CH 1 VOLTS / DIV switch to 1 V.
Table A - 3
Storage
Deflection
Accuracy
j . CHECK_ - The display is compressed to 0.5 division
in
amplitude .
VOLTS
/
DIV
Switch
Setting
Standard
Ampli
tude
Signal
Divisions
of
Deflection
Voltage
Readout
Limits
k . Move the cable from the CH 1 OR X input connector
to the CH 2 OR Y input connector .
2 mV
10 mV
4.90 to
5.10
9.80 to 10.20 mV
1. Set :
5 mV
20 mV
3.92 to 4.08
19.6 to 20.4 mv
VERTICAL MODE
SAVE /
CONT
CH 2
CONT
10 mv
50 mV 4.90 to
5.10
49.0 to 51.0 mV
20 mV 0.1 V 4.90 to 5.10 98.0 to
102.0 mV
50 mV 0.2 V
3.92 to
4.08
198.0 to 204.0 mV
m . Repeat
parts a
through , using
the
Channel 2
controls .
0.1 V
0.5
V
4.90 to 5.10
0.490 to 0.510 V
0.2 V
1 V
4.90 to 5.10 0.980
to
1.020 V
4.
Check
Position
Range
0.5 V
2 V
3.92 to
4.08
1.960 to 2.040 V
a .
Set
:
1 V 5 V
4.90 to
5.10
4.90 to 5.10 V
2 V 10 V
4.90 to
5.10
9.80 to
10.20
V
VOLTS /
DIV (
both
)
AC -
GND
- DC
(
both
)
STORE / NON - STORE
50 mV
AC
NON -
STORE (
button
out )
5 V 20 V
3.92 to 4.08
19.60 to 20.40 V
3.
Check
Save
Expansion and
Compression
a . Set the CH
1 VOLTS / DIV
switch to 0.1 V.
b . Set the generator to produce a 0.5 V standard
amplitude signal .
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П
b .
Set
the
generator
to
standard
-
amplitude
signal
.
produce
a 0.5
division
C. Adjust the CH 2 VOLTS / DIV Variable control to pro
duce a 4.4 division display . Set the CH 2 VOLTS / DIV
switch to 10 mV .
A - 5