* SEE THE WDM EQUIPMENT LIST ____THE (X) BELOW THE ACCESS/AREA REFERS TO THE VIEW SHOWN ON FIG. 102. THIS HELPS YOU FIND THE
NOTE:COMPONENTS ON THE ILLUSTRATION. FOR EXAMPLE, (A) REFERS TO VIEW A.
Center Equipment Panel, P54 - Component Index
Figure 101 (Sheet 1)

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747-400 FAULT ISOLATION/MAINT MANUAL
COMPONENT  SHT 102 FIG.  QTY  ACCESS/AREA  REFERENCE 
RELAYS - 121, CENTER EQUIP, P54 
R7392  3  1  (C)  * 
R7417  2  1  (B)  * 
R7418  2  1  (B)  * 
R7513  3  1  (C)  * 
R7515  2,3  1  (B),(C)  * 
R7650  3  1  (C)  * 
R7651  3  1  (C)  * 
R7652  2,3  1  (B),(C)  * 
R7653  2,3  1  (B),(C)  * 
R8115  3  1  (C)  * 
R8116  2  1  (B)  * 
R8117  2  1  (B)  * 
R8118  2  1  (B)  * 
TERMINAL BLOCKS - 121, CENTER EQUIP, P54 
TB390 2  1  (B)  * 
TD507  (B) * 
TRANSFORMER - 121, CENTER EQUIP, P54 
T73  2  1  (B)  * 

* SEE THE WDM EQUIPMENT LIST
____NOTE: THE (X) BELOW THE ACCESS/AREA REFERS TO THE VIEW SHOWN ON FIG. 102. THIS HELPS YOU FIND THE COMPONENTS ON THE ILLUSTRATION. FOR EXAMPLE, (A) REFERS TO VIEW A.
Center Equipment Panel, P54 - Component Index
Figure 101 (Sheet 2)

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P54 PANEL

Center Equipment Panel, P54 - Component Location
Figure 102 (Sheet 1)

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747-400
FAULT ISOLATION/MAINT MANUAL

TD507
R113
THIS ROW CONTAINS: R640 R641 R859 R7417 R7418 R7513 R7515 R7652 R7653 R8116 R8117 R8118

TB390
P54 PANEL
(BACK)

Center Equipment Panel, P54 - Component Location (Detail from Sht 1)
Figure 102 (Sheet 2)

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FAULT ISOLATION/MAINT MANUAL

THIS ROW CONTAINS: R372 R373 R374 R376 R699 R7650 R7651 R7652
R367 R368 R371 R375 R379 R380 R7653
P54 PANEL (INSIDE UPPER)
TB390 (REF)THIS ROW CONTAINS: R7126 R7650 R7651
THIS ROW CONTAINS: R638 R639 R7515
THIS ROW R8115
CONTAINS:
R361
R362
R365
R366
R369
R370
R7391

Center Equipment Panel, P54 - Component Location (Detail from Sht 1)
Figure 102 (Sheet 3)

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