T-45C TS, ADV & IUT ENG-21
CNI System
2.
Controls and indicators--VOR/ILS System 1.4.18.3
Sg 3, fr 9
VOR/ILS Control
a.
Power/frequency selector
Panel
(1) Outer knob (three-position switch)
(a) OFF: disconnects power to system
(b) PWR: connects power to system
(c) TEST: initiates system BIT--A warmup
period of 5 seconds is required before
system operation. A built-in-test of the
VOR/ILS system is performed as
follows:
(i) Select VOR steering and CDI on
HSI display
(ii) Select and set 000 on HSI display
(iii) Set and hold the Power/Frequency
selector in the Test position
The following occurs:
(iv) NAV and GS flags and glideslope
pointer should not be visible.
Range flag should be in view
(v) The VOR bearing pointer and
digital bearing will indicate 315 +
3.0 degrees
(vi) The CDI bar will move to the left,
maximum 2 dots
(vii) The marker beacon lights will
illuminate
Page 21-30
(9-98) Original
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