TB 9-6625-2241-24
Table 3. Vertical Deflection Accuracy
Test instrument
Oscilloscope calibrator
VOLTS/DIV
output volts
mV1
5
mV
30
10
mV
60
mV
20
mV
120
mV
50
mV
0.3
V
0.1 V
0.6
V
0.2 V
1.2
V
0.5 V
3.0
V
1
V
6.0
V
2
V
12.0
V
5
V
30.0
V
1
Set oscilloscope calibrator to 1 KHz.
(4) Set oscilloscope calibrator to STBY.
(5) Press VERT MODE pushbutton CH 2 to on (in) and set CH 2 AC-GND-DC
switch to DC.
(6) Connect oscilloscope calibrator to TI CH 2 input.
(7) Set TI and oscilloscope calibrator to each setting in table 4 and at each setting
adjust the oscilloscope calibrator output in EDIT mode for 6 divisions of vertical display. If
oscilloscope calibrator readout does not indicate within 3%, perform b (2) below.
Table 4. Vertical Deflection Accuracy
Test instrument
Oscilloscope calibrator
VOLTS/DIV
output volts
mV1
5
mV
30
10
mV
60
mV
20
mV
120
mV
50
mV
0.3
V
0.1 V
0.6
V
0.2 V
1.2
V
0.5 V
3.0
V
1
V
6.0
V
2
V
12.0
V
5
V
30.0
V
1
Set oscilloscope calibrator to 1 KHz.
b. Adjustments
(1) Set oscilloscope calibrator for VOLTS at 30 mV, 1 kHz. Adjust R92 (R3482)
(fig. 1) for 6 divisions of vertical display on TI (R).
(2) Set oscilloscope calibrator for VOLTS at 30 mV, 1 kHz. Adjust R192 (R3882)
(fig. 1) for 6 divisions of vertical display on TI (R).
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