If on a flight deck EFIS system all the displays were missing one bit of information. This is most likely to be
- the input sensor bus and display controller.
- the input sensor bus and display processor.
- the display controller and symbol generator.
Explanation from PART66Online
If the same single item of information is missing from every EFIS display, the fault must lie in a part common to all displays. The display controller and symbol generator process and format the data sent to the screens, so a fault there can drop one parameter across all displays, whereas an individual display unit fault would affect only that screen.
H
hasdim_1969 asked · 28 Dec 2012
why should the symbol generator be faulty since each dislay is driven by a different one?
(unless of course when all other symbol generators have failed)
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