I A P 2 0 2 3 . 0 0 1 - A F M / I R I S T E X A N I I P A G E | 155
FOR SIMULATION USE ONLY – NOT A TRAINING AID
Pushing the frequency selector switch interchanges the active and standby
frequencies.
Pushing and holding the frequency selector switch down for 2 or 3 seconds causes
the standby frequency, second set of numbers, to disappear allowing the active
frequency, top set of numbers, to be changed.
The active frequency is changed by rotating frequency selector knobs. The outer
knob tunes the transceiver frequency in 1 MHz increments and the inner knob tunes
the frequency in 25 kHz increments. Pushing and holding the switch for 2 or more
seconds restores the standby frequency display. In the event of a total display
failure, pushing and holding the switch for 7 seconds tunes the transceiver
frequency to 121.500 MHz
NOTE
Standby VHF control is turned off by pushing and holding the function
selector knob for 5 seconds.
LIGHTING SYSTEM
INTERIOR LIGHTING
All instruments, control panels, and displays in both cockpits are lighted for
operation during night or reduced light conditions. Additionally, area lights are
provided near the circuit breaker panels in each cockpit.
All lighting within the cockpits, except for the electronic displays, is blue/white in
colour. All switches and placards required for safe flight are also illuminated.
Balanced lighting output from the instruments, control panels, and displays can be
adjusted and maintained throughout the dimmable range.
Balanced lighting is accomplished by dimming controls for the instrument panel,
area lighting, and side console lighting, located on the trim control panel in each
cockpit.
Instrument panel lighting is controlled by a rheostat knob placarded INST. Area
lighting is controlled by a rheostat knob placarded FLOOD. Side panel lighting is
controlled by a rheostat knob placarded SIDE. Knee board lights are located on
each side of the forward and aft glare shield and are controlled individually.
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