TM 1-1520-238-T-4 4–88 4–14. POWER PLANTS – WIRING INTERCONNECT DIAGRAM (cont) 4–14 P/O ELECTRICAL CONTROL UNIT (NOTE 27) N_G SIG P46 F FUEL BYPASS FUEL FILTER BYPASS OIL FILTER PRESSURE FUEL PSI FUEL BYP OIL BYP 79 24 18 30 51 49 50 48 47 46 11 45 24 23 16 15 14 13 12 D K RTN RTN J1 GS542 J22 P18 P22 E RTN J24 P24 P46 P49 A157 P31 1 2 4 19 15 20 RTN 13 3 RTN ENGINE 1 NP GOVERNING OFF ENGINE 2 NP GOVERNING OFF ENGINE 2 OUT ENGINE 1 OUT c b ENGINE 1 OUT a ENGINE CHOP ENGINE 2 OUT N_G N_P ENGINE 1 P/O ENGINE 2 IN RTN GS542 28 VDC OUT GS542 28 VDC OUT IN ENGINE 2 GS542 DETECTOR CHIP MAGNETIC CHIPS E3 20 21 HI 28 VDC OUT 28 VDC OUT LO 44 22 13 P/O CPG CAUTION/WARNING PANEL (NOTE 12) 12 23 P/O ENGINE OUT WARNING UNIT 5 A106 A9 W118 P/O PILOT CAUTION / WARNING PANEL (NOTE 12) W118 W261 W264 W166 N(17) P(17) F(17) G(17) E(17) J(17) K(17) L(17) M(17) H(17) R(17) D(17) J1 M58-018-18C SHEET 18 OF 21 (NOTE 26) (NOTE 26) C(17) B(17) A(17) 1 1 P/O ENGINE ANTI-ICE BLEED START VALVE J1 J2 E1 P42 9 8 LO HI N_P SIG J1