TM 1-1520-238-T-4 4–78 4–14. POWER PLANTS – WIRING INTERCONNECT DIAGRAM (cont) 4–14 A11 A10 A7 A6 A3 A5 J456 P456 J448 2 1 1 2 13 18 12 P448 3 21 7 5 5 4 9 8 6 J22 P22 14 12 P42 J1 SIGNAL POWER CHECK TEST CIRCUIT p EMERGENCY N OVERSPEED RTN 18 - 26 VDC OUT N DEMAND RTN p E1 (NOTE 1) 115 VAC IN P/O ELECTRICAL CONTROL UNIT P/O ENGINE 2 2 P P P T3 T3 7 P 2 A4 P 6 W166 M58-018-8B SHEET 8 OF 21 W118 W119 W211 15 VDC OUT U(9) T(9) S(9) N(10) M(10) P(10) R(9) K(10) L(10) T3 P P W118 1 1 (NOTE 26) (NOTE 27)