Garmin Apollo CNX80 Installation Manual

Also see for Apollo CNX80: User Newsletter User Newsletter Supplemental Flight manual Pilot's guide Data list

Post-Installation Configuration & Checkout3-18 560-0982-00 Rev D Apollo CNX80 Installation ManualFigure 3-20 - Interface Monitor Function Display - Page 3This page displays the current values of the synchro heading, baro potentiometer and 26VAC referenceinputs.Press the MAIN line select key to return to the Interface Monitor Function Display - Page 1.Details for each of the inputs that can be monitored are shown in Table 3-4.For each CNX80 ARINC 429 input that is used, verify that data is being received. If no data is beingreceived, ensure that (i) the source equipment is turned on, (ii) the ARINC 429 input type and speed hasbeen set up correctly, and (iii) the wiring is correct.For each discrete input that is connected to the CNX80, exercise the discrete and verify that the appropriatediscrete changes from a ‘0’ to a ‘1’ when activated (the CDI Select input will momentarily change to a ‘T’when exercised).For each CNX80 serial input that is used, verify that data is being received. If no data is being received,ensure that (i) the source equipment is turned on, (ii) the serial port input RX type has been set upcorrectly, and (iii) the wiring is correct.If synchro heading is supplied to the CNX80, verify that the synchro heading is displayed and agrees withthe value provided by the heading source. If the synchro heading is dashed out, ensure that (i) the sourceequipment is turned on, (ii) the heading valid discrete is VALID (P5-57 = ‘1’), (iii) the 26VAC 400 Hzreference is being supplied, and (iv) the wiring is correct.If a baro pot is connected to the CNX80, verify that the baro-correction is displayed and agrees with thealtimeter baro-correction. If the baro-correction value does not vary with the altimeter value, ensure that (i)the baro-correction has been properly calibrated, and (ii) the wiring is correct.