TM 1-1520-238-T-4 4–20 4–7 SYSTEM DESCRIPTION (cont) 4–7 PILOT COLLECTIVE PILOT POWER QUADRANT ENGINE START CONTROLS ENGINE START INDICATORS RTR BK SWITCH CPG POWER QUADRANT EMERG HYD SWITCH BATT OVRD SWITCH ENG 1 CPG CAUTION / WARNING PANEL HMU HISTORY RECORDER ENGINE STARTER ACCESS GEARBOX COMPRESSOR IGNITER PLUGS ENGINE EXCITER ECU (NOTE 1) FIFTH STAGE BLEED AIR OIL PRESSURE TRANSDUCER CHROMEL- ALUMEL SENSORS ANTI-ICE SYSTEM PAS ENGINE OIL PRESSURE INDICATOR TGT INDICATOR PILOT CAUTION / WARNING PANEL OIL BYP ENG 1 CHPS ENG 1 FUEL BYP ENG 1 NGB MAIN TRANSMISSION MAIN ROTOR CPG COLLECTIVE MONOPOLE PERMANENT MAGNET PICKUP CHIP DETECTOR SYSTEM FUEL FILTER BYPASS SENSOR OIL FILTER BYPASS TAIL ROTOR AUDIO WARNING SYSTEM ENGINE 1 (ENGINE 2 TYPICAL) M58-274 NOTE: 1. HELICOPTERS WITH T700-GE-701C ENGINES INSTALLED ARE EQUIPPED WITH A DECU. Figure 4–11. Power Plants Functional Block Diagram