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OVHD INTEG LT knob
- This knob turns the overhead panel’s integral lighting on and off and adjusts its brightness.
ICE IND & STBY COMPASS sw
- This switch turns the standby compass light and the external ice detector light on and off.
- The DOME sw controls both dome lights.
- BRT: Both dome lights are on and bright.
- DIM: Both dome lights are on and dim.
- OFF: Both dome lights are off.
ANN LT sw
- The ANN LT sw controls all the flight deck annunciator lights.
- TEST: All flight deck annunciator lights turn On. Figure ‘8’ is displayed on all LCDs of FCU.
- DIM: Reduces the brightness of all flight deck annunciator lights.
- BRT: All flight deck annunciator lights operate normally.
- Note: When the ANN LT sw is set to TEST, do not reconfigure the DU (ECAM/ND transfer) or the DMC (DMC switching).