TB 9-6625-2343-50
(22) Adjust A18R23 FM DIST 1.5 MHz IF (fig. 4) for equal indications between TI
PEAK+ and PEAK-(R).
(23) Press TI keys as listed in (a) and (b) below:
(a) DATA 3000.
(b) DATA kHz⇓.
(24) Switch TI DETECTOR between PEAK+ and PEAK-. The difference should be
<1.6 kHz. If not, adjust A18R23 FM DIST 1.5 MHz IF (fig. 4) to reduce the difference by
one-half. Note the indications as PK1+ and PK1-.
(25) Press TI ⇑kHz key.
(26) Switch TI DETECTOR between PEAK+ and PEAK-. Note the indications as
PK2+ and PK2-.
(27) TI is properly adjusted when [(PK1+ - PK1-) + (PK2+ - PK2-)] <1.6 kHz.
(28) Move connection from AM/FM test source FM OUTPUT to AM/FM test source
FM/4 OUTPUT.
(29) Press TI keys as listed in (a) and (b) below:
(a) LP FILTER 3 kHz.
(b) AUTOMATIC OPERATION.
(30) Set calibrator for a wideband output of 1 kHz at an amplitude of 250 mV.
(31) Adjust calibrator output level for a TI indication of 50 kHz.
(32) Press TI MEASUREMENT AM key.
(33) Adjust A18R19 INC AM 1.5 MHz IF (fig. 4) for a minimum display <0.2 percent (R).
(34) Disconnect equipment setup.
(35) Connect TI sensor module to TI CALIBRATION AM/FM OUTPUT.
(36) Press TI keys as listed in (a) and (b) below:
(a) DATA 13.0.
(b) DATA SPCL.
(37) Adjust A50R45 "A" LVL (fig. 5) for a display of 33.330 to 33.336 percent (R).
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