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Tests continuity of the ADG uplock release
circuit and of the Emergency AC, DC and,
Hydraulic Pump 3B Transfer Contactors.
Tests the auto-deploy control unit logic circuits.
PWR TXFR OVERRIDE Switch
Push – De-energizes the
Emergency AC Transfer Contactor,
Emergency DC Transfer Contactor
and Hydraulic Pump 3B Transfer
Contactor if power is restored to
the main AC buses.
: ADG Manual Deploy
Handle must be stowed for all
transfer contactors to de-energize.
NOTE
ADG TEST LAMP
During LAMP Test
During UNIT Test
Illuminates steady.
On the ground, illuminates after 2
seconds for 2 seconds.
In-flight, illuminates after 5 seconds
for 2 seconds.
ELECTRICAL
7-32 For Training Purposes Only
May 03
P I LOT T R A I N I N G GU I D E
DC Electrical Power
ELECTRICAL POWER Panel
Figure 7-24
ELECTRICAL POWER
BATT MASTER EXT. POWER
APU GEN GEN 2
OFF/
RESET
OFF/
RESET
ON
ON
OFF
ESS. POWER DC POWER
AC ESS XFER MAIN BUS TIE
AC POWER
GEN 1
OFF/
RESET
AVAIL
IN USE
IN
USE
ON
AUTOXFER
FAIL
OFF
FAIL
OFF
ALTN CLOSED
ON
AC DC
BATT MASTER Switch
ON
OFF
– Connects the batteries (MAIN BATT DIR BUS and
the APU BATT DIR BUS) to the BATT BUS.
– Disconnects the batteries from the BATT BUS.
MAIN BUS TIE Switch/Light (alternate-action)
Push
CLOSED Light
Illuminated
– Ties DC BUS 1 and DC BUS 2 together.
– Indicates that both DC BUS 1 and
DC BUS 2 have been tied together.
: Both DC utility buses are load shed
whenever the switch/light indicates CLOSED.
NOTE
P604_07_026
External DC Power Light
Illuminated – Indicates
external DC power is
connected to the aircraft
and is supplying the APU
BATT DIR BUS.
ELECTRICAL
For Training Purposes Only
May 03
7-33
P I LOT T R A I N I N G GU I D E
Circuit Breaker Panels
Circuit Breaker Panel 1
Figure 7-25
3
10
7.5
7.5 7.5
7.5 7.5
7.5
7.5
7.5
7.5 7.5
7.5 7.5
7.5
7.5 7.5 7.5
7.5 7.5 7.5
3
3
3 3 3 5 7.5
3
3 3 3
50 50 50
3 3 3 3 3 3 3
3
3
3 3
20 5 3 3 20 3
3
3
3
3
3
3
3
3
3
3 3 3 3
3
3
3
5 3
3
3
3
3
5 5 5 5
3
3
3
3
3
3
3
3
3
3 3
3 3 5 3 5 5
3 10
10 10
3 10 3 3 3 3
3
5
5 5
25 7.5 20 20
5 3 3 3
25
25
1
1
1
1
2
2
2
2
3
3
3
3
4
4
4
4
5
5
5
5
6
6
6
6
7
7
7
7
8
8
8
8
9
9
9
9
10
10
10
10
11
11
11
11
12
12
12
12
13
13
13
13
14
14
14
14
15
15
15
15
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14 15
WOW/
GEAR/
SPLR 1
DISP
FAN
CONT
FLAP
CONT
1
GND
SPLR
RUD
TRIM
NOSE
STEER
ANTI
SKID
CKPT
HTR
CONT
A/ICE
AUTO
1
14 ST
B/AIR
SOV L
14 ST
B/AIR
ISOL
SOV
HTR
CONT
L WSHLD
B
C
D
E
F
G
H
POWER MUST BE OFF BEFORE OPENING PANEL CBP-1
HYD PUMP
115 VAC BUS 1
115 VAC BUS 1
115 VAC BUS 1
115 VAC BUS 1 115 VAC UTILITY BUS 1
HEATERS
3B 2B TAT
AUX
AOA
L
WSHLD
CKPT
HTR
TRU
1
IRU
3
IRU 3
GPWS FAN
FLAP
MOTOR
1
115VAC
ESS
FEED
MAIN
BATT
CHGR
ENG
VIB
MON
PASS
WARN
SIGNS
CKPT
FAN
ADG
DEPLOY
SENSE
LDG/TAXI LTS
L
NOSE
L
WING
NAV
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