EFFECTIVITY BEJ ALL  33-14-00 
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D633W101-BEJ  Jan 05/2002 

FLIGHT COMPARTMENT MISCELLANEOUS LIGHTS -CHART LIGHTS

Purpose
The chart light gives light to the clip board area.
Location
There are two chart lights. They are outboard from the captains and first officers seats. They are above the number two windows.
Physical Description
Each light has and upper and lower half and a lamp. The lamp is a bayonet-style lamp.
Operation
You use the CHART light control to make the chart light come on and go off. The control is above the nose landing gear steering tiller.
Training Information Point
Open the number two window to get access to the bulb. Remove the upper half of the light to get access to the bulb. It has a bayonet-style connection with the lower half.
EFFECTIVITY BEJ ALL  33-14-00 
Page 12 
D633W101-BEJ  Jan 05/2002 

FLIGHT COMPARTMENT MISCELLANEOUS LIGHTS -CHART LIGHTS

EFFECTIVITY BEJ ALL  33-14-00 
Page 13 
D633W101-BEJ  Jan 05/2002 

FLIGHT COMPARTMENT MISCELLANEOUS LIGHTS -FUNCTIONAL DESCRIPTION

General
The right main bus must have power for the flight compartment miscellaneous lights to operate.
Utility, Map, Chart and Worktable Lights
When you turn the light on, a switch closes and sends power to the light. A wiper adjusts the amount of light that comes from the light. The utility light has a momentary contact that makes the light come on as long as it is closed.
Floor Lights
The floor lights operate in the dim or bright mode. The floor lights transformer decreases the voltage. The power then goes through the switch and to the lights.
EFFECTIVITY BEJ ALL  33-14-00 
Page 14 
D633W101-BEJ  Jan 05/2002 

FLIGHT COMPARTMENT MISCELLANEOUS LIGHTS -FUNCTIONAL DESCRIPTION

EFFECTIVITY BEJ ALL  33-14-00 
Page 15 
D633W101-BEJ  Jan 05/2002 

MASTER DIM AND TEST -INTRODUCTION

Purpose
The master dim and test (MD&T) system lets you do these tasks:
*
Do a test of the flight deck indicator lights

*
Do a test of some LCD windows

*
Set most indicator lights to the bright or dim mode.

Interface
The MD&T system has interfaces with these systems and components:
*
OPAS, supplies BIT for the MD&T system and gives a connection to the 629 ARINC buses

*
Storm light switch, makes the indicator lights operate in bright mode if dim mode if selected

*
AIMS, supplies ground test and fault indications for the MD&T system

*
ELMS, supples control and operating power for the MD&T system

*
APU and engine fire switches, MD&T system supplies power to the switches

*
Fuel cutoff switches, MD&T system supplies power to the switches

*
Stab and rubber trim indicators, MD&T system supples a test signal to the indicators

*
LCD windows for the mode control panel and the transponder panel, MD&T system supplies a test signal to LCD control circuit in the related panels

EFFECTIVITY
BEJ ALL

* Integral panel lights, MD&T system card file holds the master bright control card and supplies power to card. See the integral panel lights section for more information about the master bright control card (SECTION 33-13).
General Description
The system has these parts:
*
Indicator lights switch

*
P29 master dim and test (MD&T) card file

*
MD&T card (3).

The indicator lights switch has three positions; TEST, BRT, and DIM. The TEST position is momentary and the BRT and DIM positions are fixed positions. The switch lets you set the mode of operation for the system.
The card file gets power from ELMS and supplies it to the MS&T cards and to these switches:
*
APU fire switch

*
Left and right engine fire switches

*
Left and right fuel cutoff switches.

Each master dim and test card has two control channels. The channels independently give test, bright, and dim control for a group of indicator lights and LCD windows.
33-16-00

Page 1 D633W101-BEJ Sep 05/2002

MASTER DIM AND TEST -INTRODUCTION

Test Mode
The TEST position of the indicator light switch makes most indicator lights turn on bright. The TEST position also makes LCD windows show a test pattern but does not have an effect on the usual brightness of the LCD windows for these indicators:
*
Stabilizer position indicators

*
Rudder trim indicator

*
Autopilot mode control panel (MCP)
　
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