TM 11-5840-208-30-1
Section IV. DUPLEXER AND DEHYDRATOR CHECKS
PARA
SYMPTOMS
CIRCUIT
CHECKS
PAGE
3-18
a.
No crystal current, keep
a.J1602A or B
alive readings on AFC and
(-600VDC)
86
Klystron IF crystals.
b. TB1501-11 to pin
12 (6. 3VAC)
169
b.
No AFC crystal current
a. CR1503
90,
MXR OSC.
158,
184.
a. CR1501
90,
c.
No IF crystal current
NO. 1
MXR OSC
158,
160.
a. CR1502
90,
d.
No IF crystal current
NO. 2
MXR OSC
158,
160.
3-19
a.
Zero reading on
a. F3301, F3302,
pressure gage
F3303
104
b. Check for leaks in
wave guide,
65
Figure 3. RF system block diagram.
Page 38
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