(f) Audio Module (Ref. Fig. 027) The Audio Module gives centralized control over boarding music and prerecorded announcements.
1 MUSIC ON/OFF
_ The MUSIC ON/OFF membrane switch, switches on the boarding music. The integral light in the membrane switch comes on. Pushing the membrane switch a second time switches off the boarding music and the integral light goes off.
2 MUSIC SEL
_ The MUSIC SEL membrane switch, switches the boarding music to the next channel. The selected channel is shown on the numerical display.
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Audio Module
Figure 027
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3_ MUSIC+/MUSIC-
Pushing the MUSIC+/MUSIC- membrane switch increases/decreases
the loudness of the boarding music. The loudness is indicated
on a 10 step rectangular LED row.
4_ PRERECORDED ANNOUNCEMENT
This area on the front face of the audio module includes a
display for the selected announcements and a keyboard and
function keys.
To start prerecorded announcement push the related key and
then the ENTER membrane switch. When the recorder has found
the correct announcement the READY indicator comes on. Pushing
the START NEXT membrane switch starts the announcement and the
READY indicator goes off. If more than one announcement is
selected, the START ALL membrane switch activates all
announcements. If the ENTER membrane switch is not pushed the
selected announcement will be accepted after a delay of
approx. 5 s.
An LED in front of each MEMO display indicates which memory is
selected for modification.
**ON A/C 051-099, 201-210,
5 PES ON/OFF
_ Pushing the PES ON/OFF membrane switch, switches on the passenger entertainment system. The membrane switch integral light comes on. Pushing the membrane switch a second time switches off the passenger entertainment system and the membrane switch integral light goes off.
**ON A/C 211-299,
5 PES ON/OFF
_ Pushing the PES ON/OFF membrane switch, switches on the passenger entertainment system. The membrane switch integral light comes on. Pushing the membrane switch a second time switches off the passenger entertainment system and the membrane switch integral light goes off.
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**ON A/C 001-049, 051-099, 101-105, 151-199, 201-299,
(g) MISCELLANEOUS MODULE (Ref. Fig. 028)
1_ LIGHT EMER
The LIGHT EMER pushbutton switch, switches on the emergency
lighting system. The integral light in the pushbutton switch
comes on. Pushing the pushbutton switch a second time switches
off the emergency lighting system and the integral light. The
function of the pushbutton is independent from the CIDS power
supply.
2_ CIDS PNL LIGHT TEST
The CIDS PNL LIGHT TEST membrane switch, switches on all the
lights in the panel and the membrane switch integral light as
long as the membrane switch is pressed.
3_ EVAC EVAC
The indicator light EVAC is controlled by a discrete input.
4_ EVAC CMD
The EVAC CMD membrane switch, switches on the evacuation
system. The integral light in the membrane switch comes on.
Pushing the membrane switch a second time switches off the
evacuation system and the integral light. The membrane switch
switches a discrete input to ground.
5_ RESET
The RESET membrane switch, switches off the warning horn, if
the evacuation system is activated. It also switches off the
lavatory smoke warning if the warning is activated. The
membrane switch switches a discrete input to ground.
6_ CIDS CAUTION
The CIDS CAUTION light is resettable in flight, but comes on
again on the ground (landing gear down and locked). The light
cannot be reset on the ground. When a CIDS CAUTION occurs, the
respective failure message is displayed on the programming and
test panel.
7_ SMOKE LAV
The SMOKE LAV indicator light comes on when a signal from the
smoke detector is received.
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