TM 9-4935-294-15/2
Table 3-10-continued
Step
Procedure
Normal indication
Possible cause of malfunction
Corrective measure
nominal oscillator sensi-
tivity settings in chapter
2, section II, of TM
9-4931-294-15/1. Depress
and hold PRESELECTOR
DEPRESS TO TUNE
switch. Adjust PRE-
SELECTOR TUNE con-
trol for a maximum indi-
cation on LEVEL meter.
If LEVEL meter indica-
tion goesoff scale, use
SIGNAL LEVEL to obtain
a midscale indication. Re-
lease PRESELECTOR
DEPRESS TO TUNE
switch.
6
Using CRYSTAL SELECTOR
LEVEL meter "peaks'.
Defect within tunable synchro-
Refer to tunable synchronizer
switch and REF OSC
nizer.
manual.
COARSE and FINE TUNE
controls, adtust the
reference oscillator
frequency for a max-
imum indication on the
LEVEL meter.
7
Set LOCK RANGE control to
PHASE meter indicates ZERO.
Defect within tunable synchro-
Refer to tunable synchronizer
OPERATE.
nizer.
manual.
8
To set signal source output free-
Frequency measurement setup
Defect within tunable synchro-
Refer to tunable synchronizer
Quincy within 1 part in 10',
indicates desired fr equency.
nizer.
manual.
adjust CRYSTAL SELECTOR
REF OSC. COARSE AND
Defect within frequency measurement
Refer to paragraph 3-4 or 3-5
FINE TUNE controls to
setup.
of this section.
obtain desired frequency indication
on digital counter. (Refer to par-
agraph on operating procedure
for frequency time measure-
ment system in chapter 2, sec-
tion IlI, of TM
9-4931-294-15/1.)
9
Disconnect frequency measure-
Oscilloscope frequency response
Defect within BWO power supply.
Refer to BWO power supply -
ment setup from signal source
display expands and contracts.
manual.
output and connect a crystal
Change 1 3-30
