Survey Of Checking And Adjusting Points - Philips PM5324 Instruction Manual

3.4.
S u rvey of c h e c k i n g a n d a d j u s t i n g p o i nts
Adjusting
element
Su pply
Current consumption
Supply voltages Potentiometer
638/un it 2
R i pple
Potentiometer
1 k Hz-voltage
632/u nit 2
Frequency deviation
Sawtooth voltage Resistor 647 1
unit 2
F requency
Square-wave voltage
Duty cycle
H F-Ampl itude Potentiometer
6 1 2/u nit 1
Amplitude response Trimmer 5381
u n it 1
F requency see table 1
Attenuation Potentiometer
6 0 1 i n position
50 /l V
Potentiometer
Ampl itude modulator
63 1 /u n i t 1
Blanking of the fly-back
Wobble sweep
a . m . - i .f. range
Wobble sweep f.m. range
Ampl itude- a n d
frequency modu lation
Ca l i bration frequency Trim mer 5421
u n i t 1
Sensitivity
F ig . Absolute value
I r . m.s. = 58 .. .70 mA
- 1 2 V ± 20 m V
4 1
- 1 8 V ± 1 00 m V
V p _ p < 2 m V
V r.m.s. = 2 V ± 20 mV
4 1
±200 H z
V p _ p = 1 0 V ± 0 .2 V
4 1
25 H z ± 5 H z
V p _ p about 1 2. 7 V
0.4 ± 0 . 1
50 mV ± 1 mV
39
35.4 < 50 < 70 mV
39
table 1
60 d B
39 V r . m . s . � 5 m V
see table 2
see tab le 3
39 1 0 M H z ± 500 H z
%
> 50 of f u l l scal e
defl ection
M easu r i ng e . g .
equ ipment
PM 2 4 1 1
Ammeter
D igital voltmeter PM 242 1
PM 323 1
Osci l loscope
D igital voltmeter P M 242 1
P M 6620
Counter
PM 323 1
Oscil loscope
Counter PM 6620
Osci l loscope PM 323 1
Counter PM 6620
1
PM 242 1
Digital voltmeter
P M 9203 +
+ U H F probe +
PM 9253
U H F T-con nector
PM 6630
Cou nte r
V o ltmeter
Osci l loscope PM 323 1
Osci l loscope PM 323 1
Measu r i ng set u p P M 532 1
accord ing to F i g . 3 1 PM 5 1 20
P M 32 1 0
874 - TPD
874
M easu ring set up
874
according to F ig . 30 (General
R ad i o )
Measu r i ng i n stru-
H eterodyne
ment for freq uency- 2006
and ampl itude { B ruel
mod u lation or set-
Kjaer
up accord ing t o
F ig. 3 2
Counter
PM 6620
33
Ch apter
3 . 5 . 1 .
3.5.2.
3.5.3.
3.5.4 .
+
3.5.6. 1 .
3.5.6.3.
3.5.6.2.
3.5.6 .4 .
3.5.5.
3.5.7.
3.5.8. 1 .
- V R
- W50 3.5.8.2.
3.5.9 . 1 .
&
3 . 5 .9 . 2 .
3 . 5 .9 .3.
3 . 5 . 1 0.