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Problem
Intercom doesn't function
Can't change active frequency
OBS readout displays "---"
Display shows
"Incorrect Calibration Check-
sum" at start-up
Possible Cause
Input not connected
No voice activation, or must
talk too loud
Com Radio not communicat-
ing
Resolver failure
Calibration error
Corrupted system calibration
parameters
Action
Check connections
Check System page, Com Op-
tions, Intercom level
Contact dealer
Contact dealer
Recalibrate resolver
Contact factory
Appendix
35
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