TB 9-6625-2294-24
Table 10. Trigger Level 1 M Input Coupling - Continued
Test instrument trigger level
Test
readout indications
calibrator
instrument
peak
VOLTAGE
VOLTS/DIV
+ peak
output settings
switch settings
Min
Max
Min
Max
500
mV
2.0
V
1.78
V
2.22
V
-.16
V
0.16 V
1.0
V
5.0
V
4.50
V
5.50
V
-.35
V
0.35 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
(5) Repeat technique of (3) and (4) above for each remaining row listed in table 10.
(6) Perform steps (a) through (c) below:
(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 11.
(c) Ensure oscilloscope calibrator output frequency is set to 1 kHz.
(7) Perform steps (a) through (d) below:
Pull SEC/DIV knob out.
(a)
Press A/B TRIG pushbutton for B TRIGGER indication.
(b)
Press TRIGGER MODE pushbutton for B TRIG AFT DLY.
(c)
Adjust TRIGGER LEVEL control for a stable display.
(d)
(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
specified 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
Table 11. Trigger Level 1 M TRIG AFT DLY Input Coupling
Test instrument trigger level
calibrator
readout indications
Test instrument
peak
VOLTAGE
VOLTS/DIV
+ peak
output settings
switch 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).
13
