Garmin GNC 420AW, Installation Manual

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Page 5-14 400W Series Installation Manual
Rev. G 190-00356-02
5.3.11 MAIN CDI/OBS CONFIG Page
Select the MAIN CDI/OBS CONFIG Page (see Figure
5-14). This page allows you to verify the MAIN CDI
outputs, both lateral (
LAT ) and vertical ( VERT ), and
verify and calibrate the MAIN OBS input. Using the
controls on the 400W Series unit front panel, make the
selections below and verify the interfaces as appropriate:
CDI (LAT/VERT)
Selection Verify That:
Max left
The CDI is “pegged” to the left.
Full left The CDI is deflected full scale to the left.
Center The CDI is centered.
Full right The CDI is deflected full scale to the right.
Max right
The CDI is “pegged” to the right.
NAV FLAG (LAT/VERT)
Selection Verify That:
Hidden The LAT/VERT flag is hidden.
In view
The LAT/VERT flag is in view.
TO-FROM
Selection Verify That:
FROM The FROM flag is in view.
Hidden
The TO/FROM flag is hidden.
TO The TO flag is in view.
SELECTED COURSE
Select 150° on the CDI/HSI that is connected to the 400W Series unit’s MAIN OBS inputs. The
SELECTED COURSE field indicates near to 150° and a Calibrate to 150°? field appears. Selecting
this field calibrates the 400W Series unit to match the input source. Verify OBS operation by checking
that the course displayed on the 400W Series unit is within 2° of the selected course. Do this at 30°
intervals around the OBS card.
NOTE
If it is desired to ignore a selected course input (either analog resolver or ARINC 429) for
GPS operation in OBS mode, press MENU on the MAIN CDI/OBS CONFIG page and
select “Ignore SEL CRS for GPS?”. When OBS mode is selected, the selected course is
entered on the controls of the 400W Series unit. If ignoring the selected course input
such that the VOR valid flag is dependent only on a valid VOR signal, with lateral
deviation calculated by another display device, press MENU on the MAIN CDI/OBS
CONFIG page and select “Ignore SEL CRS for VLOC?”.
Figure 5-14. MAIN CDI/OBS CONFIG Page