CHAPTER

33

Lights

CHAPTER 33 Lights

33-CONTENTS
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D633W101-BEJ
Jan 05/2002

LIGHTS -INTRODUCTION

General
These are the lights systems on the airplane:
*
Flight compartment lights

*
Passenger compartment lights

*
Emergency lights

*
Cargo and service compartment lights

*
Exterior lights.

Emergency lights are part of passenger compartment lights.
Abbreviations and Acronyms
*
ADC -air data computer

*
AIMS -airplane information management system

*
ARINC -Aeronautical Radio, Inc.

*
ASCPC -air supply and cabin pressure controller

*
ASP -attendant switch panel

*
APU -auxiliary power unit

*
brt -bright

*
CACP -cabin area control panel

*
CB -circuit breaker

*
ckt -circuit

*
cm -centimeter

*
CSS -cabin services system

*
CSCP -cabin system control panel

*
ctrl -control

*
dist -distribution

*
dmr -dimmer

*
dr -door

*
ECS -environmental control system

*
ELMS -electrical load management system

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*
EEU -ELMS electronics unit

*
emer -emergency

*
ext -exterior

*
FSEU -flap/slat electronic unit

*
ft -feet

*
fwd -forward

*
gen -generator

*
gnd -ground

*
hdlg -handling

*
illum -illumination

*
inbd -inboard

*
inst -instrument

*
int -interior

*
I/S -intersystem

*
kg -kilograms

*
L -left

*
ldg -landing

*
LED -light emitting diode

*
LRU -line replaceable unit

*
lt -light

*
m -meters

*
MBC -master brightness control

*
MD&T -master dim and test

*
MEC -main equipment center

*
mgmt -management

*
nav -navigation

*
NLG -nose landing gear

*
norm -normal

*
OEU -overhead electronics unit

*
OPAS -overhead panel ARINC 629 system
* ovhd -overhead

*
PA/CI -passenger address/cabin interphone

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LIGHTS -INTRODUCTION

*
pax -passenger

*
PC -printed circuit

*
PCU -passenger control unit

*
pnl -panel

*
PSEU -proximity sensor electronic unit

*
PSU -passenger service unit

*
pwr -power

*
R -right

*
ref -reference

*
rly -relay

*
SDM -speaker drive module

*
sect -section

*
stby -standby

*
svce -service

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SVU -seat video unit

*
sw -switch

*
typ -typical

*
V -volts

*
wht -white

*
wng -wing

*
xfmr -transformer

*
ZMU -zone management unit

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777 AIRCRAFT MAINTENANCE MANUAL

LIGHTS -INTRODUCTION

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Page 1 D633W101-BEJ Jan 05/2002

FLIGHT COMPARTMENT LIGHTS -INTRODUCTION

General  * Utility light (not shown).
Lights in the flight deck do these tasks:  The master dim and test system controls the amount of light that comes from the system annunciators.
*
Give general light

*
Give light to panels

*
Supply light for system indications

*
Supply specified light for tasks.

The flight compartment lights has these sections:
*
Flight compartment illumination

*
Integral panel lights

*
Flight compartment miscellaneous lights

*
Master dim and test.

The flight compartment illumination lights give general light in the flight compartment. These are the lights:
*
Map lights

*
Dome lights.

The integral panel lights give light to the controls and indications on panels in the flight compartment.
The flight compartment miscellaneous lights give light to work areas, the floor, and panels. These are the lights:
　
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