TM 1-1520-238-T-4 4–82 4–14. POWER PLANTS – WIRING INTERCONNECT DIAGRAM (cont) 4–14 CB58 c ENG START 2 1 P463 A76 5A J21 (NOTE 12) A402 J21 P439 A14 B 28 VDC IN TB2 - 8 A15 28 VDC P/O ELECTRICAL POWER DISTRIBUTION BOX P439 J21 SIGNAL (NOTE 9) EMERGENCY 13 2 1 1 12 3 21 18 2 P 14 6 12 7 5 9 8 7 6 5 P41 P21 J21 3 POWER CHECK P/O PILOT CENTER CIRCUIT BREAKER PANEL (NOTE 1) Np DEMAND 115 VAC ØA T3 TEST CIRCUIT Np OVERSPEED P/O ELECTRICAL CONTROL UNIT (NOTE 27) DC BUS EMERG P/O ENGINE 1 18 - 26  VDC OUT RTN A E1 4 15 VDC OUT RTN 15 VDC OUT M58-018-12C SHEET 12 OF 21 W119 W165 W119 P P P N(11) M(11) K(11) L(11) B(10) E(10) G(10) D(10) P P T3 P P (NOTE 12) J1 P T3 P W119 W668 W605 A(10) C(10) 1 1 (NOTE 26)