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737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
33-11-00-007
LIGHTS - INSTRUMENT AND PANEL LIGHTS - MASTER WARNING AND CAUTION LIGHTS
LIGHTS - INSTRUMENT AND PANEL LIGHTS - MASTER WARNING AND CAUTION LIGHTS
EFFECTIVITY
GUN ALL 33-11-00
Page 13
D633A101-GUN Feb 10/2003
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
33-11-00-007
Purpose
The captain instrument panel lights provide the illumination for
the instruments and panels in front of the captain.
Functional Description
You control the intensity of instrument and panel illumination by
the main panel variable transformer on the P1 panel. Turn the
transformer knob clockwise to give brighter lights. Turn the
transformer knob all the way counterclockwise to turn the lights
off.
Power from the variable transformer goes to the auto
transformer in the P41 captain lighting panel. From the auto
transformer, 0 - 5v ac goes to the instrument and panel lights on
P1 and P2 panels.
Circuit breakers on the P41 panel provide protection for the
system.
LIGHTS - INSTRUMENT AND PANEL LIGHTS - CAPTAIN INSTRUMENT PANEL - FUNCTIONAL DESCRIPTION
EFFECTIVITY
GUN ALL 33-11-00
Page 14
D633A101-GUN Oct 10/2002
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
33-11-00-011
LIGHTS - INSTRUMENT AND PANEL LIGHTS - CAPTAIN INSTRUMENT PANEL - FUNCTIONAL DESCRIPTION
LIGHTS - INSTRUMENT AND PANEL LIGHTS - CAPTAIN INSTRUMENT PANEL - FUNCTIONAL DESCRIPTION
EFFECTIVITY
GUN ALL 33-11-00
Page 15
D633A101-GUN Feb 10/2003
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
33-11-00-011
Purpose
The first officer instrument panel lights provide the illumination
for the instruments and panels in front of the first officer.
Functional Description
You control the intensity of instrument and panel illumination by
the main panel variable transformer on the P1 panel. Turn the
transformer knob clockwise to give brighter lights. Turn the
transformer knob all the way counterclockwise to turn the lights
off.
Power from the variable transformer goes to the auto
transformer in the P42 first officer lighting panel. From the
auto transformer, 0 - 5v ac goes to the instrument and panel
lights on P3 panel.
Circuit breakers on P42 panel provide protection for the system.
LIGHTS - INSTRUMENT AND PANEL LIGHTS - FIRST OFFICER INSTRUMENT PANEL - FUNCTIONAL DESCRIPTION
EFFECTIVITY
GUN ALL 33-11-00
Page 16
D633A101-GUN Oct 10/2002
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
33-11-00-012
LIGHTS - INSTRUMENT AND PANEL LIGHTS - FIRST OFFICER INSTRUMENT PANEL - FUNCTIONAL DESCRIPTION
LIGHTS - INSTRUMENT AND PANEL LIGHTS - FIRST OFFICER INSTRUMENT PANEL - FUNCTIONAL DESCRIPTION
EFFECTIVITY
GUN ALL 33-11-00
Page 17
D633A101-GUN Feb 10/2003
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
33-11-00-012
Purpose
The standby instrument panel lights provide the illumination for
the instruments and panels when normal power supply is not
available.
Functional Description
The instrument and panel lights for the captain and first officer
are from the 28v ac transfer busses.
Relays R1 in the P41 and P42 panels are energized.
Relay R386 in P41 panel and relay R237 in P42 panel are
energized.
When 28v ac power from transfer bus is not present, the relays
deenergize. This connects the 28v ac standby bus to the auto
transformer in the P42 panel. From the auto transformer, 5v ac
goes to the instrument and panel lights on P1, P2, and P3
panels.
Circuit breakers on the P41 and P42 panels provide protection
for the system.
LIGHTS - INSTRUMENT AND PANEL LIGHTS - STANDBY INSTRUMENT PANEL LIGHTS - FUNCTIONAL DESCRIPTION
EFFECTIVITY
GUN ALL 33-11-00
Page 18
D633A101-GUN Oct 10/2002
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
33-11-00-013
LIGHTS - INSTRUMENT AND PANEL LIGHTS - STANDBY INSTRUMENT PANEL LIGHTS - FUNCTIONAL DESCRIPTION
LIGHTS - INSTRUMENT AND PANEL LIGHTS - STANDBY INSTRUMENT PANEL LIGHTS - FUNCTIONAL DESCRIPTION
EFFECTIVITY
GUN ALL 33-11-00
Page 19
D633A101-GUN Feb 10/2003
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