Table 4-2: Deflection Accuracy Limits - Tektronix 2212 Service Manual

2212
Service Manual
Perfonnance Tests
Procedure Steps
Step
1.
Check Deflection Accuracy
a. Connect a 10 m V standard-amplitude signal from the calibra-
tion generator via a 50
n
BNC coaxial cable to the CH
1
OR X
input connector.
b. CHECK - Deflection accuracy is within the limits given in
Table
4-2
for each CH
1
VOLTS/DIV switch setting and
corresponding standard-amplitude signal.
Table 4-2: Deflection Accuracy Limits
VOLTS/DIV STANDARD
ACCURACY
switch
amplitude limits
setting signal
(divisions)
2mV 10 m V 4.85 to 5.15
5mV 2 0mV
3.88 to 4.12
10 mv 50mV 4.85 to 5.15
20mV 0.1 V
4.85 to 5.15
50mV
0.2V 3.88 to 4.12
0.1 V 0.5 V
4.85 to 5.15
0.2V
1 V 4.85 to 5.15
0.5 V 2V
3.88 to 4.12
1V 5V 4.85 to 5.15
2V 10V 4.85 to 5.15
5V 20V
3.88 to 4.12
Step
2.
Check Trace Shift
a. Set CH
1
VOLTS/DIV switch to 2 mV/division.
b. Rotate the VOLTS/DIV switch through the range.
c. CHECK -The trace shift should bes; 0.25 division.
d. Set the
VAR
to the minumum sensitivity, and rotate the
VOLTS/DIV switch through the range.
e. CHECK - The trace shift should be s; 1.0 division.
f. Move the cable from the CH
1
OR X input connector to the
CH 2 ORY input connector. Toggle the MODE switch to CH 2.
g. Repeat part b through f using the CH 2 controls.
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