T-45A UJPT, E2-C2, ADV, & IUT Eng-07
Electrical
3.
Controls/switches (after aircraft 163635 and
Sg 3, fr 5
up; 163600 through 163634 after T-45A
LT TEST
AFC-71)
O
F
F
TONETEST
INTR/EXT
a.
Instruments, control panels/units, and
LIGHTS
FLOOD
MIP
light plates on the main instrument
OFF
BRT
OFF
BRT
A-COLL/STROBE
panel are powered from the 26 VAC
CONSOLE
WARN/CAUT
A-
COLL
DIM SELECT
nonessential bus
OFF
BRT
OFF
INTERIOR LIGHT CONTROLS
b.
Instrument, control panels/units, and
light plates on the left and right
consoles are powered from the 115
VAC nonessential bus
c.
Emergency lights are powered by the
28 VDC essential services bus and
illuminate automatically
d.
Map reading lights are powered by the
28 VDC essential services bus and are
available at all times the bus is
powered. Map reading lights are
independently controlled with a
dedicated rheostat within each light
e.
When WARN/CAUT Dim Select switch
is on, the intensity of the warning,
caution, and advisory lights is
automatically dimmed
f.
The MIP on/off switch is an integral
part of the MIP rheostat
Sg 4, fr 1
Lesson Organization
IV. Electrical system aircraft interfaces 1.4.4.2
Sg 4, fr 2, p 1
A.
28 VDC generator bus: equipment powered
28 VDC - GENERATOR BUS
AC Isolation Relay
Rudder Trim Pos. Ind.
Generator Fail Relay
ADI
GTS Drain Valve
SADS
Aileron Trim Control
Stabilator Pos. Ind.
Gun Simulation
1.
Landing/Taxi light
Aileron Trim Posn. Ind.
Gunsight
Stby. Stab. Trim Ctrl.
Altimeter Encoder
Total Temp. Probe Htr.
HSI (Course Synchro)
Anti-Coll./Strobe Lights
HUD/VCR
Turn Rate Trans.
AOA Probe Heater
UHF/VHF Radio No. 2
Land/Taxi Light
Armament Cont./Lights
Mach/Airspd Ind Pickoff
Undervoltg. Sensg. Unit
Bomb Release
Voltage Regulator
Master Arm Sys
2.
Anti-collision/strobe lights
Cabin Press Ctrl No. 2
OBOGS Heater
VOR/ILS/MB
Camera Electronics Unit
Overvoltage Unit
Ckpt Flood Ltg
1
Radar Altimeter
Comm Amplifier B
Rocket Release
Control Augmentation
Rudder Trim Control
DEU/DEP
B.
28 VDC ground services bus - refueling panel
28 VDC GROUND SERVICES BUS
5
Fuel Lvl Cntrl 2
Fuel Sys Trans 2
Refuel/Defuel
Refuel Precheck
6
6
7
5
ELECTRICAL LOAD DISTRIBUTION--
PART 1
(8-03) Original
Page 7-21
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