Tektronix 2247A Operator's Manual page 187

Performance Check Procedure
Set calibration generator to Std Amp! output, 10 mV.
Move the test signal to the CH 1 Input.
g. Set:
Vertical MODE CH 1 (CH 2 off)
CH 1 VOLTS/DIV 2mvV
h. Position the trace two graticule lines below the center horizontal
graticule tine.
|. Repeat CHECK procedure for CH 1.
10. CH 3 and CH 4 Vertical Deflectlon Accuracy
a. Set:
Vertical MODE CH 3 (CH 1 off)
CH 3 VOLTS/DIV O.1V
b. Position the trace two graticule lines below the center horizontal
graticule line.
c. Move the test signal to the CH 3 input.
d. Set the calibration generator to Std Ampl output, 0.5 V.
6. 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 (CH 3 off)
CH 4 VOLTS/DIV 0.1Vv
h.
Position the
trace two graticule
lines
below the center
horizontal
graticule line.
|. Repeat CHECK for CH 4.
J. Set CH 4 VOLTS/DIV to 0.5 V.
7-16
2247A Operators