Model 465A
Section V
Figure 5-2 and Table 5-3
FREQUENCY RESPONSE
TEST SET
$j;
739AR
$j;
465A
AMPLIFIER
©l
@
DISTORTI ON ANALYZER
0
$j;
331A
465A-B-02'6
�o 0
©l
o@
©l
@
0
U
©
TEST OSCIL LATO R
$j;
651A
0
@U
@
�
\
0
@
0-
@
Figure 5-2. Distortion Check
c . Set Model 465A GAIN to 20 DB.
d. Set distortion analyzer to METER.
e. Set oscillator frequency to 1 kc; adjust
oscillator output to provide distortion analyzer
(voltmeter) reading of 5 v.
f. Adjust frequency response test set METER
SET control to desired SET LEVEL.
g. Switch distortion analyzer FUNCTION to
SET LEVEL;METER RANGE to SET LEVEL
and SENSITIVITY for upscale meter deflection.
Adjust VERNIER for full scale reading of 1
(100%).
h. Rotate FUNCTION switch to DISTORTION.
Null out fundamental of signal by alternately
reducing METER RANGE and adjusting
BALANCE and frequency control knob for
null.
j. Final null will indicate amount of distortion
(%) present in Model 465A output signal. At 1
kc, distortion should be less than 1%.
k. Repeat the above test for oscillator fre.;
quencies listed in Table 5-3. Entire test
.
should be repeated with Model 465A GAIN set
to 40 db. Refer to Table 5-3 for oscillator fre
quencies and distortion tolerances. Monitor
frequency response test set SET LEVEL to
insure constant oscillator output amplitude.
Table 5-3. Distortion Check
-hp- Model 465A
Oscillator
Distortion Analyzer
Gain
-hp- Model 651A
-hp- Model 331A
(db)
Frequency
Output
Frequency
Maximum Disposition
20
1 kc
1. 0 v
1 kc
1%
20
50 kc
1. 0 v
50 kc
1%
20
500 kc
1. 0 v
500 kc
2%
20
10 cps
1. 0 v
10 cps
1%
40
1 kc
0. 1 v
1 kc
1%
40
50 kc
0. 1 v
50 kc
1%
40
500 kc
0. 1 v
500 kc
2%
40
10 cps
0. 1 v
10 cps
1%
01775-1
5-3
Содержание 465A
Страница 1: ...465A AMPLIFIER OPERATING AN D SERVICE MANUAL HEWLETT PACKARD ...
Страница 19: ...Model 465A C 22 _ _ l_ Q9 465A B 0219 01775 1 Figure 5 5 Top View Section V Figure 5 5 _ TI 1 _ _ CI5 5 7 ...
Страница 20: ...Section V Figure 5 6 465A A 0220 5 8 Figure 5 6 Printed Circuit Board Parts Location Model 465A 01775 1 ...
