User's Manual

Table Of Contents
SYSTEM DESCRIPTION AND INSTALLATION MANUAL
T
3
CAS/Part No.9005000
Upon activating the maintenance pages, the T
3
CAS unit will display the
maintenance introduction page on both the captain’s and first officer’s TAWS
displays.
While in the maintenance pages:
(a) The T
3
CAS unit will display the next maintenance page when the TAWS
flight deck self-test pushbutton/switch is active for less than or equal to 3
seconds.
(b) Subsequent activations of the TAWS flight deck self-test
pushbutton/switch will result in the T
3
CAS unit displaying the next
maintenance page.
(c) The following is a listing of extended self-test information pages available
for display:
Information Displayed
Pages
Introduction
0
Table of Contents
1
Part Numbers
2, 3, 4, 5, 6, 7, 8, 9, 10
System Test
11
ACD Options Pages
12, 13 14, 15, 16, 17, 18, 19, 20, 21,
22, 23, 24, 25
The T
3
CAS unit will exit the extended self-test when the TAWS flight deck self-
test pushbutton/switch is active for greater than 3 seconds or the aircraft
transitions from ground to air.
C. T
3
CAS Computer Unit Self-Test
The Front Panel has a test switch to initiate testing of T
3
CAS as well as LED indicators
which are used for the annunciation of internal LRU or external system faults for T
3
CAS.
The testing for T
3
CAS is initiated through the test switch on the front of the LRU. TCAS
and TAWS functions both monitor the switch and initiate a test sequence when the switch
is pressed. The test results for both functions are annunciated on their respective LED
displays.
(1) With all power off, reinstall the T
3
CAS computer unit in its mounting tray. Make
sure the TCAS control panel and display(s) are also installed.
(2) Apply aircraft power and close all applicable T
3
CAS system circuit breakers.
(3) On the TCAS control panel, set the ATC/TCAS controller mode switch to Mode S
ON.
(4) Push the push-to-test button on the T
3
CAS computer unit front panel. The test
sequence that follows should occur:
All T
3
CAS computer unit front panel annunciators come on for a 3-second
lamp test.
Pub. No. 8600200-001, Revision 004
34-45-29
5-17
04 Nov 2014
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