PSU VALID
CSEU POWER26V AC
B
26V AC
SUPPLY 1L
15V DCSTBY BUS28V DC5V DC FLT CONT ELEC 1L DC
OR CSEU 1L DC
28V DC
28V DC
STABILIZER
SPOILERSPOILERSPOILERRUDDER RATIO
YAW DAMPERTRIM/ELEVATOR
CONTROL MODULECONTROL MODULECONTROL MODULECHANGER MODULE
28V DC
MODULE LEFT ASYMMETRY
1L2L 3L LEFT
STBY BUS
LIMIT MODULE
FLT CONT ELEC 2L DC
OR CSEU 2L DC
26V AC
5V DC
15V DC
CSEU POWERPSU VALIDSUPPLY 2L PSU RESET PSM 2 FAIL
C
PSU FAIL
115V AC
PSM 2 FAIL
FLT CONT ELEC 2R AC
F
OR CSEU 2R AC P11
OUTBOARD SPOILEROUTBOARD SPOILEROUTBOARD SPOILER
POWER CONTROL POWER CONTROL POWER CONTROL
ACTUATORS ACTUATORS ACTUATORS
SUPPLY 2R115V ACRIGHT BUS
OR CSEU 2R DC
26V AC
26V AC
26V AC
OUTBOARD SPOILERINBOARD SPOILER INBOARD SPOILER
POWER CONTROL POWER CONTROL POWER CONTROL
ACTUATORS ACTUATORS ACTUATORS
115V AC
CSEU RIGHT SHELF POWER DISTRIBUTIONLEFT BUSPSM 1 FAILINTERNAL WIRING SAME AS
D FLT CONT ELEC 1R AC
CSEU LEFT SHELF POWER DISTRIBUTION
CSEU POWER 26V AC
OR CSEU 1R AC
E
SUPPLY 1R28V DCLEFT BUS
FLT CONT ELEC 2R DC
STABILIZER
SPOILERSPOILERSPOILERRUDDER RATIO
OR CSEU 2R DC
YAW DAMPERTRIM/ELEVATOR28V DC CONTROL MODULECONTROL MODULECONTROL MODULECHANGER MODULE
MODULE RIGHT ASYMMETRY
1R 2R 3R RIGHT
LIMIT MODULE
28V DCRIGHT BUSFLT CONT ELEC 2R DC
CSEU POWER
STBY BUSFLT CONT ELEC 2L ACOR CSEU 2L AC
26V AC
26V AC
26V AC
CSEU Power Distribution Schematic
Figure 3 (Sheet 1)
A
757
MAINTENANCE MANUAL
FAIL
A
LOWER26V AC
BYAW DMPRSERVO LVDT
CAPTWHL RVDT
SPD BRK
LVDT 1
C
SPD BRK
LVDT 2
SPD BRKLVDT 3
RUDDER RATIO
CHANGE LVDT
L FLT CONT ELEC (W)
D R FLT CONT ELEC (W)
UPPER
L/R EICAS COMPUTERE26V AC
YAW DMPR
SERVO LVDT
F/OWHL RVDT FAIL
F
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CSEU Power Distribution Schematic
Figure 3 (Sheet 2)
A
757
MAINTENANCE MANUAL
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
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A
757
MAINTENANCE MANUAL
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
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ABCDE
FGH LIN VAR DISPL
SPOILER CONT 3L 7 PWR CONTXDRC 3
ACTRNOTE: EXAMPLE SYSTEM (THE LEFT SYSTEM IS SHOWN)
CSEU AC Power Schematic
Figure 4 (Sheet 2)
A
757
MAINTENANCE MANUAL
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
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ALL ú ú 06 Page 12 ú Jan 28/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
ABCDEF
GHJ
KLM
NPQ
RST
UVWXYZ
AAABAC
ADAEAF
AGAHAJ
AKALAM
CSEU POWER SUPPLY 2L NOTE: TYPICAL SYSTEM(LEFT SYSTEM SHOWN)
CSEU DC Power SchematicFigure 5 (Sheet 1)
NOTE:EXAMPLE SYSTEM(THE LEFT SYSTEM IS SHOWN)
CSEU DC Power SchematicFigure 5 (Sheet 2)
27-09-00
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MAINTENANCE MANUAL
CDEFGHJ
K
L
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