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Page Title:
OPERATIONAL CHECK. (CONT) |
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 TM 114625-2975-12
3.9. OPERATIONAL CHECK. (CONT)
ACTION
INDICATION
FREQUENCY display should read 75.000. If
74. Enter a frequency of 75.000 MHz.
not, refer test set to higher level of
maintenance.
NOTE
If 400 Hz key is lit, press to extinguish.
RF LEVEL display should read 50 and
75. Set rf output level to -50 dB mW.
-dB mW indicator should be lit. If either
or both of these indications do not occur
as described, refer test set to higher
level of maintenance.
RF LEVEL display should read 700 and the
76. Press dB mW/V key.
V indicator should be lit. If either or
both of these indications do not occur as
described, refer test set to higher level
of maintenance.
RF LEVEL display should read 50 and -dB mW
77. Press dB mW/V key again.
indicator should be lit. If either or both
of these indications do not occur as
described, refer test set to higher level
of maintenance.
RF LEVEL display should show a contin-
78. Press and hold SLOW DECR key.
uous increase in 1 db increments. If not,
refer test set to higher level of maintenance.
79. Release SLOW DECR key.
RF LEVEL display should show a contin-
80. Press and hold SLOW INCR key.
uous decrease in 1 db increments. If not,
refer test set to higher level of maintenance.
81. Release SLOW INCR key.
RF LEVEL display should show a contin-
82. Press and hold FAST DECR key.
uous increase in 10 db increments. If not,
refer test set to higher level of maintenance.
83. Release FAST DECR key.
3-14
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