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Page 5-34 400 SERIES MAINTENANCE MANUAL
Rev. C P/N 190-00140-05
5. Verify the VOR/LOC SUPER FLAG OUT output voltage with respect to ground is 0 r250
mV (50 ohm load).
VOR/LOC SUPER FLAG OUT ______ mV
5.7.4.7 NAV Input Lines
Monitor the “VOR DISCRETE INPUTS” Test Page and verify that toggling the below listed
inputs between their active and inactive states, causes the appropriate status box to change states.
Remote Transfer
_______ OK
DME Common
_______ OK
DME Request
_______ OK
DME RNAV
_______ OK
5.7.4.8 NAV OBI Outputs
Monitor the “VOR DISCRETE OUTPUTS” Test Page and verify that toggling the below listed
outputs between their active and inactive states causes the output voltage on the appropriate line
to switch between low (<1.0 V) and high (>4.0 V) states.
OBI Clock
Low______ High ______
OBI Data
Low ______ High ______
OBI Sync
Low ______ High ______
ILS APR
Low (Active) _____ High (Inactive) ____