TB 9-6625-2294-35
(a) Set CH 1 VOLTS/DIV switch as listed in first row of table 11.
(b) Set oscilloscope calibrator VOLTAGE output as listed in first row of table
(c) Ensure oscilloscope calibrator output frequency is set to 1 kHz.
(7) Perform steps (a) through (d) below:
(a)
Pull SEC/DIV knob out.
(b)
Press A/B TRIG pushbutton for B TRIGGER indication
(c)
Press TRIGGER MODE pushbutton for B TRIG AFT DLY.
(d)
Adjust TRIGGER LEVEL control for a stable display.
(8) Adjust ∆REF OR DLY POS control for a delay readout of 0.000 ms.
(9) Alternately adjust TRIGGER LEVEL control for most positive voltage or most
negative voltage that produces an intensified point on waveform display when
selecting + or - SLOPE. If B TRIGGER level readout indication is not within limits
given in + peak column or - peak column of table 11, perform b below.
(10) Repeat technique of steps (6) through (9) above for each remaining row listed in
Test instrument trigger level
Test instrument
calibrator
readout indications
-peak
VOLTS/DIV
VOLTAGE
+ peak
switch settings
output settings
Min
Max
Min
Max
5
mV
20
mV
16.8
mV
23.2
mV
-2.6
mV
2.6
mV
10
mV
50
mV
44
mV
56
mV
-4.5
mV
4.5
mV
20
mV
0.1
V
89
mV
111
mV
-8.0
mV
8.0
mV
50
mV
0.2
V
178
mV
222
mV
-16
mV
16
mV
100
mV
0.5
V
450
mV
550
mV
-35
mV
35
mV
200
mV
1.0
V
0.90
V
1.10
V
-70
mV
70
mV
500
mV
2.0
V
1.78
V
2.22
V
-.16
V
.16
V
1.0
V
5.0
V
4.50
V
5.50
V
-.35
V
.35
V
2.0
V
10.0
V
9.0
V
11.0
V
-0.7
V
0.7
V
5.0
V
20.0
V
17.8
V
22.2
V
-1.6
V
1.6
V
(11) Press corresponding pushbuttons for indications listed in (a) through (f) below:
(a)
20 MHz BW LIMIT off.
(b)
TRIGGER SLOPE to + (plus).
(c)
TRIGGER COUPLING to AC.
(d)
A/B TRIG (off).
(e)
TRIGGER MODE to AUTO LVL.
(f)
TRIGGER SOURCE to VERT CH 1.
(12) Set CH 1 VOLTS/DIV switch to 100 mV and set A SWP SEC/DIV switch to 10
ms (knobs locked; pushed in).
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