TB 9-6625-357-35
(9) Set selector switch to LOW PASS X10.
0.708 V. If frequency counter does not indicate between 1.5873 and 1.7543 ms, perform b
(3) below.
(11) Repeat technique of (7) through (10) above, using TI dial settings and
function/arbitrary generator frequencies listed in table 7. If frequency counter does not
indicate within limits specified, perform b (3) below.
Frequency counter indications
Test instrument
Function/arbitrary
(ms)
CUTOFF FREQ Hz
generator frequency
dial settings
(Hz)
Min
Max
20
200
4.7619
5.2632
30
300
3.1746
3.5087
40
400
2.3809
2.6316
80
800
1.1904
1.3158
100
1000
0.95238
1.0526
140
1400
1330 Hz
1470 Hz
200
2000
1900 Hz
2100 Hz
(12) Set CUTOFF FREQ Hz dial to 60 and selector switch to LOW PASS X10K.
(13) Adjust function/arbitrary generator frequency to 60 kHz and amplitude until
true rms voltmeter indicates 1 V.
0.708 V. If frequency counter does not indicate between 540 and 660 kHz, perform b (4) and
(5) below.
(15) Repeat technique of (12) through (14) above at settings listed in table 8. If
frequency counter does not indicate within limits specified, perform b (6) through (10) below.
Function/arbitrary generator
Frequency counter indications
Test instrument
frequency
CUTOFF FREQ Hz
LOW PASS
dial settings
switch settings
Initial
Final
Min
Max
22
X10K
22 kHz
220 kHz
198 kHz
242
kHz
180
X10K
180 kHz
1.8 MHz
1.62 MHz
1.98 MHz
20
X1K
2 kHz
20 kHz
19 kHz
21
kHz
60
X1K
6 kHz
60 kHz
57 kHz
63
kHz
200
X1K
20 kHz
200 kHz
190 kHz
210
kHz
200
X100
2 kHz
20 kHz
19 kHz
21
kHz
60
X100
600
Hz
6 kHz
5.7 kHz
6.3 kHz
20
X100
200
Hz
2 kHz
1.9 kHz
2.1 kHz
20
X1
10
Hz
20
Hz
47.619 ms
52.6316 ms
60
X1
30
Hz
60
Hz
15.873 ms
17.544 ms
200
X1
20
Hz
200
Hz
4.7619 ms
5.2632 ms
b. Adjustments
13
