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I.
Cc)rmec[ the oscillosccipe between 209-2c and comrnc)n.
2®
Adjust
2C)9 R14
for minimum pulse width.
7®
14.
A
Re a 1 i nment of VC03
Measuring equipment:
Oscilloscope having ari input impedance of 10 Mohms in parallel with
20 pF or less.
Frequency Counter having an accuracy better than 10-3, a sensitivity
of at least lv and an upper frequency limit of at least 75 rmz.
Extension Board
4±
7.14.1.
Realignment o£
210 C24,
210 C26,
210 C28,
VC03:
Control settings:
SUPPLY §wicch:
STAND BY
1. Connect a shcirting lead between teminal 210-6c and cotmon.
2. Connect the frequency counter between 210-16c and comon.
3.
Select VC03z.
(A frequency between loo kHz and 10 rmz aLs transmit-
ting f requency) .
4. Adjust 210 C24 until the counter reads 51.0 rmz.
5. ::::C:I::33zcy}t frequency between 10 mz and 2o mz as transmit-
6. Adjust 210C26 until the counter reads 61.3 MHz.
7. Select VC03x (A frequency between 20 rmz and 30 rmz as transmitting
f requency) .
8. Adjust 210 C28 until the counter reads 71.3 rmz.
9. Remove the shortitig lead referred to in 1.
7.14.2. Realignment o£ 210 R5 Phase/Frequency Detector 3 Error Signal:
Concrc)1
settings:
SUPPLY switch:
STANI) BY
Frequency selected: Greater than I rmz.
1. Connect the oscilloscope between the junction of 208 R48 / 208 R49
and comon.
2. Adjust 210 R5 for nininun pulse width.
7 D 15 .
•.:,.\`
Re a 1 i
rment ctf Master Oscillator
Measuring equiptnent :
Oscilloscope having an input impedance of 10 Mohms in parallel with
20 pF or less.
Frequency counter, accuracy better than 10-7.
7.15.1.
Realignment
of
240
T1,1.4
rmz
coil:
Contrcil settings:
SUPPLY switch:
STAND BY
1. Connect oscillc)scope to teminals 240-2 and 240-3 (ground).
2. Adjust 240 Tl for tnaximun defleccion on oseilloscope.
7-8
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