Figure HO257
here.
Figure
7-18.
25
MHz
HI
OUT
W
a
v
eform
from A14J1
Figure
HO607
here.
Figure 7-19. 60 MHz HI OUT W
aveform from A14J1
A14 V
CO Exercise
The nominal tuning v
oltage range of the V
CO is +10 to
0
5v
olts. When the analyzer is in
operation, this v
oltage is supplied b
y the A13 assem
bly.
This pro cedure substitutes a p o
wer
supply for the A13
assembly to c
heck the frequency range of the A14 V
CO.
1. Switch o the analyzer and remove the A13 assembly.
2. Put the A14 assembly on an extender b oard and switch on the instrument.
3. Prepare to monitor the VCO frequency, either by:
Activating the analog bus and setting the internal counter to the FRACN node, or
7-24 Source Troubleshooting DRAFT
3/21/106 15:13
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