TB 9-6625-2079-24
b. Adjustments
(1) Adjust A8R9 (figure 2) until TI indication is same as multimeter indication (R).
Figure 2. Test instrument top view - adjustment location.
(2) Adjust A9R14 (figure 2) for same TI display recorded in a (5) above (R).
(3) Adjust A9R39 (figure 2) for a 0.0000 indication on multimeter (R).
(4) Adjust A9R40 (figure 2) for a 0.0000 indication on multimeter (R).
10. Frequency Modulation Accuracy
a. Performance Check
(1) Connect equipment as shown in figure 3.
(2) Press TI pushbuttons as listed in (a) through (e) below:
HIGH-PASS (Hz) to 30.
(a)
LOW-PASS (kHz) to 15.
(b)
PEAK to PK-PK/2.
(c)
RANGE to 10.
(d)
FUNCTION to kHz DEV.
(e)