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upper left corner of each display unit, a BRT (recessed) adjustment knob is used to set the
minimum lighting intensity for the associated screen. After adjusting the BRT knob to a
minimum level, the pilot can select the desirable level of lighting for the EFIS and EICAS
displays by using the DSPL knob located on the associated lighting panel. The RTU’s also
have brightness adjusting knobs in the upper right corner.
Vol. 1 17--20--5
REV 56, Jan 31/03
LIGHTING
Flight Compartment Lighting
Flight Crew Operating Manual
CSP A--013
MASTER
CRT, RTU, and FMS Lighting <MST>
Figure 17---20---2
CRT BRIGHTNESS
BRT
BRT+ and DIM -- Keys
(momentary action)
Used to adjust
brightness of CRT.
Used to adjust
brightness of affected
CRT.
<0024, 0050>
<0026>
<0026>
Combiner Brightness Control
Used to adjust brightness
of holographic image.
Push in for automatic
control.
Pull out and rotate
clockwise for manual
control.
RTUs 1/2
DME--H
IDENT
Collins
BRT
PFDs AND MFDs
REV 56, Jan 31/03
Vol. 1 17--20--6
LIGHTING
Flight Compartment Lighting
Flight Crew Operating Manual MASTER
CSP A--013
Flight Compartment Area Lighting
Figure 17---20---3
CREW ESCAPE
HATCH
DIMMING
SWITCH
DOME
LIGHT DOME
LIGHT
Effectivity:
Airplanes 7003 thru 7990 incorporating
the following Service Bulletin:
SB 601R--33--018, Installation of New Cockpit Dome Lights.
A
A
Vol. 1 17--20--7
REV 56, Jan 31/03
LIGHTING
Flight Compartment Lighting
Flight Crew Operating Manual
CSP A--013
MASTER
Indicator Intensity and Test
Figure 17---20---4
Center Pedestal
LAMP DRIVER UNIT
CHANNEL A CHANNEL B
1
2
EICAS
BRT/DIM
PWR SUPPLY
BATT BUS
1
2
3
EICAS
BRT/DIM
PWR SUPPLY
DC BUS 1
3
The following switch/lights are not controlled by the
lamp driver unit:
MASTER WARNING and MASTER CAUTION
GPWS and G/S, (LDU used to test lamps only)
ENG FIRE / APU FIRE, CARGO SMOKE PUSH
and associated bottles.
PA, CHIME, CALL, and EMER, and
ADG AUTO DEPLOY CONTROL TEST lamp.
BRT
Indicator Lights Toggle Switch
Used to set indicator lamp intensity.
DIM -- Selects intermediate brightness level for
indicator lights (night operation). Switch has
no effect on EFIS and EICAS displays.
BRT -- Selects maximum brightness level for
indicator lights (day operation).
NOTE
Lamps come on at
intensity selected by
IND LTS selector switch.
Lamp Test Toggle Switch
(maintenance function)
Used by maintenance personnel to test
flight compartment indicator lamps in
overhead and center pedestal panels.
1. Tests all lamps on lamp driver
unit channel 1.
2. Tests all lamps on lamp driver
unit channel 2.
REV 56, Jan 31/03
Vol. 1 17--20--8
LIGHTING
Flight Compartment Lighting
Flight Crew Operating Manual MASTER
CSP A--013
A. System Circuit Breakers
SYSTEM SUB--SYSTEM CB NAME BUS BAR CB
PANEL
CB
LOCATION
NOTES
Floods INST FLOOD
LTG DC ESS 4 C1
INTEG LTS
PLT PNLS AC ESS 3 B12
Integral
INTEG LTS
C/PLT PNLS AC BUS 2 2 C12
Lighting INTEG LTS
CTR PNLS
AC ESS 3
B13
CB PNL INT
LTS
B11
Flight
C t t
Overhead
INST LTS O/H
DC BAT 1 P6
Compartment
Lighting
Panel
PNL AC BUS 2 2 C13
Floor CKPT FLOOR DC BUS 1 1 G7
Standby
Instruments
STBY INSTR
LT/VIB DC BAT 1 P2
Chart Holder CHRT HLDR DC SERV 2 U6
PLT MAP DC BAT 1 P3
Map Lights
C/PLT MAP DC BUS 2 2 G7
OBS MAP DC BAT 1 P4
Dome Light DOME DC SERV 2 T4
Vol. 1 17--30--1
REV 56, Jan 31/03
LIGHTING
Passenger Compartment Lighting
Flight Crew Operating Manual
CSP A--013
MASTER
1. PASSENGER COMPARTMENT LIGHTING
Passenger compartment lighting is supplied by ceiling and sidewall fluorescent lights.
Entrance lighting consists of fluorescent lights in the entrance ceiling panels and three
incandescent lights in the stairs of the passenger door. Ceiling, sidewall and entrance
lighting is controlled from the forward flight attendant’s panel.
Two fluorescent dome lights are installed in the cabin ceiling next to the wardrobe. The
lights are controlled by a DOME rocker switch on the forward flight attendants panel.
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