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B
Check the transponder and DME interface.
The only required interface between the KMH/KTA TAS and the transponder is
the suppression line. Some installations may use a common control for the tran-
sponder and the TAS. In these cases, the TAS control comes from the transpon-
der control unit.
B.
In conjunction with the system installation, perform a visual inspection.
C.
Perform the Pretest Setup to set the initial conditions to check the operation
and self-test features of the system. The following steps apply and check
the TAS System input power, configure the operational controls, and verify
that the system is ready for testing. It is assumed that the person perform-
ing these tests has a working knowledge of the KMH/KTA TAS System and
the Graphics Unit and is qualified to perform these tests on the aircraft.
Ensure that all aircraft systems are secure and safe. Confirm that 28Vdc
and 26Vac 400 Hz power sources are operational; i.e., check power bus
meter.
Check that the aircraft 5Vac or Vdc or 28 Vdc panel background lighting
power source and dimmer control is operational by adjusting the cockpit
dimmer switch for proper cockpit panel background illumination.
Check that the Transponder, TAS, and Radar Systems are OFF. If applica-
ble, the selected encoding altitude source should be #1. If applicable, the
ADC (Air Data Computer) source should be set to normal.
Operate the appropriate aircraft circuit breakers to apply power to the TAS
Processor, Traffic Advisory displays and all other aircraft equipment con-
nected to the TAS Processor subsystem. Check that the circuit breakers
remain closed (pushed in).
Allow enough time for equipment warm-up. Equipment in the TAS system
require one minute for equipment warm-up. External sensors may require
more than one minute warm-up time.
On the TAS control panel, Place the SBY switch to SBY mode. Place the
ABOVE/NORM/BELOW switch so as to indicate "NORM". Place the Range
so the 5 nautical mile (nmi) range has been selected. The following should
be visible on the traffic display screen:
Rev 3, August/2002
NOTE
10609I03 CDL
KMH 880/KTA 870
Page 4-23
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