Mod : 5017 or 5018
ATR 42 Model : 400/500
GENERAL
COMMUNICATIONS
P 9
NOV 99
100
1.05
.
10
LOUDSPEAKERS VOLUME KNOBS
Communication reception over cockpit loudspeakers is controlled by an individual
knob for each of the two cockpit loudspeakers.
Note : In case of aural alert :
- Normal volume is always available regardless of knobs position.
- During any transmission, the volume of both loudspeakers is muted.
AUDIO SEL PB(s)
Controls functioning of associated RCAU processing board.
NORM (pb depressed) RCAU functions normally.
FAULT illuminates amber and the CCAS is activated when when an associated RCAU
processing board failure or power loss is detected.
ALTN
(pb released) affected crew station is connected directly to :
VHF 1 if CAPT station is affected or VHF 2 if F/O station is affected.
Volume is adjusted by affected loudspeaker volume control.
Note : On the affected side PA, interphone and other VHF can not be used any longer.
CALLS PB(s)
R
See 1.05.10 p 3
AA
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