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dome,chart holder,overhead and copilot flood) and 2) (Weight- on- wheels 1 and 2) Fire Detector (A, B, Test) EICAS Control Panel Passenger Signs DCU 1 and 2 (CH A and B) EICAS/RTU Dimming Standby Horizon Indicator Stall Protection (stick pusher CH 1) EICAS Display 1 (ED1) Audio Control Panel (pilot’s) EICAS Display 2 (ED2) Air Data Computer(1 and 2) Alternate power Lamp Driver Unit supply Bright/Dim Power Supply Unit VHF Comm Radio 1 Hyd System 3 (Gauges) Emergency Tuning Unit ADG Controller (auto and manual) IDG Disconnect (1 and 2) Essential TRU (power 1 and 2 sensing) Essential AC Transfer Control Feed 1 (battery and DC essential) GCU (1, 2 and 3) Feed 2 (battery and DC essential) DC Emergency bus Feed Battery Bus (power sensing) Engine Ignition (A & B) Control RCCB Control (Main and APU battery) Engine Start (L and R) FMS (CDU 2) <0024> Transfer/APU (manual x- flow, fuel pump, controller, ECU) Overheat Detector (Main landing gear bay)
DC Electrical System REV 56, Jan 31/03 Flight Crew Operating Manual MASTER MAIN BATTERY DIRECT BUS (CBP- DC UTILITY BUS 1 (CBP-
F. System Circuit Breakers |