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B
U.
Return the static test set and aircraft static system to the local ambient
pressure.
V.
If installed, press the Terrain Inhibit switch and verify that the item named
TerrDis switches between true and false on your PC's display.
W.
This completes the Ground Test of the EGPWS.
4.3.3
(TAS) Ground Test Procedure
Installation of the TAS System requires three stages of testing to ensure the
proper operation of the TAS System components. Initially, before installation of the
TAS processor and display units, a system interwiring check is performed. This
check verifies that the aircraft and all TAS System interconnections are correct,
before power is applied. After the units are installed, a visual inspection of the
equipment and connections is made. The Post-installation test is used to apply
power and functionally check out the system. Successful completion of the post-
installation test verifies the proper operation of the KMH/KTA Traffic Advisory Sys-
tem.
A.
To check the aircraft system interconnections, perform the following:
Check that all cables and interwiring are installed according to the Interwir-
ing and Cable Fabrication instructions.
Check that the following functions are properly strapped to reflect the air-
craft system configuration.
•
Aircraft/Mode Type
•
Air Data Type
•
Position Type
•
Terrain Display type
•
I/O Discretes Type
•
Audio Menu Type
•
Audio Output Level Type
•
Altitude Monitor Options Type
•
Terrain Display Alternate Pop UP Option
•
Attitude and Heading Type
•
Display Option Type
Using the interconnect diagrams
wiring for proper destinations, opens and shorts.
Check RF Cable for electrical length matching and insertion loss. (See
paragraph 2.2.7
Rev 3, August/2002
(paragraph
(Figures 3-1
and 2.2.8)
10609I03.CDL
KMH 880/KTA 870
(paragraph 2.2.7
and 2.2.8)
4.2.3.6)
through
Figure
3-24), check
Page 4-22
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