3 And Ch 4 Vertical Deflection A C C U Ra C Y; 3 And Ch 4 Vertical Deflection Accuracy - Tektronix 2245A Operator's Manual

Performance Check Procedure
VOLTS/DIV
Setting
2 mV
5 mV
10 mV
20 mV
50 mV
0.1 V
0.2 V
0.5 V
1 V
2 V
5 V
10. CH 3 and CH 4 V e rtical D eflection A ccu ra cy
a. Set:
VERTICAL MODE
CH 3 VOLTS/DIV
b. Position the trace to the second graticule line down from the center
horizontal graticule line.
c. Move the test signal to the CH 3 input.
d. Set calibration generator to Std Ampl output, 0.5 V.
e. CHECK—the signal amplitude is between 4.90 and 5.10 divisions.
f. Move the test signal to the CH 4 input.
g. Set:
VERTICAL MODE
CH 4 VOLTS/DIV
7-16
Table 7-2
S ig n a l-to -G ra ticu le A ccu ra cy
Std Am pl
Setting
10 mV
20 mV
50 mV
100 mV
200 mV
500 mV
1 V
2 V
5 V
10 V
20 V
D eflection A ccy.
(in divisions)
4.90 to 5.10
3.92 to 4.08
4.90 to 5.10
4.90 to 5.10
3.92 to 4.08
4.90 to 5.10
4.90 to 5.10
3.92 to 4.08
4.90 to 5.10
4.90 to 5.10
3.92 to 4.08
CH 3 (CH 1 off)
0 . 1 V
CH 4 (CH 3 off)
0 . 1 V
2245A Operators