(b)
Set the controls on the DFCS mode select panel as follows: 1) Course counter - 000.
a) Make sure the course arrow on the two HSIs agree with the course counter.
(c)
Set a local VOR frequency on the No. 2 VHF NAV control panel.
1) Make sure that you hear the local VOR sound through the flight interphone system.
(d)
Set a frequency of 108.0 MHz on the No. 2 VHF NAV control panel. 1) Make sure the GS flag and the glide slope pointer on the
first officer's ADI are out of view. 2) Make sure the VERT flag and the glide slope pointer on the first officer's HSI are out of view. 3) Make sure the navigation warning flag shows on the first officer's HSI. 4) Make sure the pointer flags show on the first officer's RDDMI.
(e)
Hold the VOR test switch on the No. 2 VHF NAV control panel in the VOR position. 1) Make sure the course deviation bar on the first officer's
HSI is in the center.
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(f)
(g)
(h)
(i)
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737-300/400/500MAINTENANCE MANUAL
2) Make sure this sequence occurs:
a) These indications occur for approximately three seconds. 1 The navigation warning flag shows on the first
_ officer's HSI. 2 The wide pointer flags show on the two RDDMIs.
_
b) These indications occur after approximately three seconds. 1 The navigation warning flag on the first officer's
_ HSI goes out of view. 2 The wide pointer flags on the two RDDMIs go out of
_ view. 3 The to-from display on the first officer's HSI shows
_ "from." 4 The narrow pointers on the two RDDMIs show 180 |3
_ degrees. c) These indications occur after approximately 23 seconds. 1 The navigation warning flag on the first officer's
_ HSI comes into view. 2 The wide pointer flags on the two RDDMIs come into
_
view.Release the VOR test switch.Set the controls on the DFCS mode select panel as follows: 1) Course counter - Airplane heading that shows on the compass
rose. a) Make sure the course arrow on the two HSIs agree with the course counter.Tune the No. 2 VHF NAV control panel to a frequency of
108.1 MHz. 1) Make sure the RUNWAY flag, the GS flag, and the glide slope pointer show on the first officer's ADI. 2) Make sure the to-from pointer on the first officer's HSI is out of view. 3) Make sure the navigation warning flag shows on the first officer's HSI. 4) Make sure the VERT flag and the glide slope pointer show on the first officer's HSI. 5) Make sure the wide pointers on the two RDDMIs are at the
3 o'clock position. 6) Make sure the pointer flags show on the two RDDMIs.Hold the UP/LT test switch on the No. 2 VHF NAV control panel in the UP/LT position. 1) Make sure this sequence occurs:
a) These indications occur for approximately three seconds. 1 The GS flag and the RUNWAY flag show on the first
_ officer's ADI. 2 The navigation warning flag and the VERT flag show
_ on the first officer's HSI. b) These indications occur after approximately three seconds.
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737-300/400/500MAINTENANCE MANUAL
1 The GS flag and the RUNWAY flag on the first
_ officer's ADI go out of view. 2 The navigation warning flag and the VERT flag on the
_ first officer's HSI go out of view. 3 The course deviation bar on the first officer's HSI
_ moves one dot in the left direction. 4 The runway symbol on the first officer's ADI moves
_ one dot in the left direction. 5 The glide slope pointers on the first officer's HSI
_ move one dot in the up direction. 6 The glide slope pointers on the first officer's ADI
_ move one dot in the up direction. c) These indications occur after approximately 23 seconds. 1 The GS flag and the RUNWAY flag on the first
_ officer's ADI come into view. 2 The navigation warning flag and the VERT flag on the
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