TB 9-6625-2343-40
(21) Adjust calibrator output level for a TI indication of 20 kHz.
(22) Press TI keys as listed in (a) and (b) below:
(a) DISPLAY RATIO.
(b) DISPLAY LIN.
(23) Move TI sensor module from AM/FM test source FM/4 to FM/32 connector
without disturbing any of the AM/FM test source controls.
(24) Multiply the indication on TI by the 40 kHz ref value recorded in (9) above. If
the result is not between 12.35 and 12.65 percent, perform b below.
(25) Move TI sensor module from AM/FM test source FM/32 to FM/4 connector.
(26) Press TI keys as listed in (a) and (b) below:
(a) DISPLAY RATIO (off).
(b) DETECTOR PEAK+.
(27) Ensure all TI HP FILTERS and LP FILTERS are off.
(28) Set calibrator output for a frequency of 100 kHz at an amplitude of 500 mV.
(29) Adjust calibrator output for a TI indication of 100 kHz.
(30) Set audio analyzer to measure distortion and ensure that all audio analyzer
filters are off.
(31) If audio analyzer does not indicate ≤ 0.1%, perform b below.
(32) Set calibrator output frequency to 10 kHz at an output amplitude of 500 mV.
(33) Adjust calibrator output for a TI indication of 100 kHz multiplied by the 400 kHz
ref value recorded in (13) above.
Example: 100 kHz X 1.004= 100.4 kHz
(34) Press calibrator NEW REF key.
(35) Change calibrator output frequency to 50 kHz.
(36) TI will indicate within limits specified in first row of table 7. If not, perform b below.
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