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24-00-00-008
ELEC Light
The ELEC light gives indication that the DC system or standby
power system has a failure. You use BITE to find the failure. The
amber ELEC light comes on only when the airplane is on the
ground.
MAINT Switch
You use the maintenance switch during BITE. The BITE
operates only on the ground. The maintenance switch is a
momentary push-button switch.
LED Alphanumeric Display
The LED alphanumeric display shows this type of information:
* DC parameters (amps, volts)
* AC parameters (amps, volts, frequency)
* As many as two lines of maintenance fault messages.
The selectors and the maintenance switch control what shows
on the alphanumeric display.
Battery Switch
GUN 001-012, 016-099, 101-110, 115
The battery energizes these buses and components when you
put the battery switch to the ON position:
* Switched hot battery bus
* Battery bus
* Static inverter
* AC standby bus
* DC standby bus
* P5-13 alphanumeric display.
GUN 013-015, 111-114, 201-999
The main battery energizes these buses and components when
you put the battery switch to the ON position:
* Switched hot battery bus
* Battery bus
* Static inverter
* AC standby bus
* DC standby bus
* P5-13 alphanumeric display.
GUN ALL
The battery switch is a two-position switch. The cover, when
down, is a guard for the switch in the ON position. You must lift
the cover before you move the switch to the OFF position.
Galley Switch
Airplanes with GALLEY switch; the GALLEY switch controls
galley electrical power. The switch is a two-position switch.
ELECTRICAL POWER - ELECTRICAL METERS, BATTERY, AND GALLEY POWER MODULE - GENERAL DESCRIPTION
EFFECTIVITY
GUN ALL 24-00-00
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D633A101-GUN Jun 10/2006
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
24-00-00-008
Cab/Util Switch and IFE/Pass Seat Switches
Airplanes with CAB/UTIL and IFE/PASS SEAT switches; the
CAB/UTIL switch controls galley and some utility’s electrical
power. A second switch, the IFE/PASS SEAT switch, controls
electrical power to passenger in-flight entertainment, cabin
phones and passenger seat outlets. The two cabin power
control switches are two-position switches.
ELECTRICAL POWER - ELECTRICAL METERS, BATTERY, AND GALLEY POWER MODULE - GENERAL DESCRIPTION
EFFECTIVITY
GUN ALL 24-00-00
Page 22
D633A101-GUN Oct 10/2005
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
24-00-00-008
ELECTRICAL POWER - ELECTRICAL METERS, BATTERY, AND GALLEY POWER MODULE - GENERAL DESCRIPTION
ELECTRICAL POWER - ELECTRICAL METERS, BATTERY, AND GALLEY POWER MODULE - GENERAL DESCRIPTION
EFFECTIVITY
GUN 001-012, 016-099, 101-110, 115 24-00-00
Page 23
D633A101-GUN Jun 10/2006
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
24-00-00-008
ELECTRICAL POWER - ELECTRICAL METERS, BATTERY, AND GALLEY POWER MODULE - GENERAL DESCRIPTION
ELECTRICAL POWER - ELECTRICAL METERS, BATTERY, AND GALLEY POWER MODULE - GENERAL DESCRIPTION
EFFECTIVITY
GUN 013-015, 111-114, 201-999 24-00-00
Page 24
D633A101-GUN Jun 10/2006
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
24-00-00-008
General
The generator drive and standby power module has these
indications and manual controls:
* IDG low oil pressure indication (DRIVE lights)
* Indication that the battery bus or either standby bus do not
have power (STANDBY PWR OFF light)
* Generator drive disconnect switches
* Standby power switch.
DRIVE Light
The amber DRIVE light comes on when the IDG oil pressure is
less than the operation limit or when there is an underfrequency
condition while the engine operates.
Generator Drive Disconnect Switch
The generator drive disconnect switch operates the disconnect
mechanism for its (IDG) when the related engine start lever is in
the idle position. This removes engine accessory gearbox
power from the IDG. There is one switch for each IDG. Each
switch is spring-loaded to the NORMAL position. The
DISCONNECT position is a momentary position. The guard
holds the switch in the NORMAL position. You must lift the
guard to move the switch.
STANDBY PWR OFF Light
The amber STANDBY PWR OFF light comes on when any of
these buses do not have power:
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