User's Manual

ROCKWELL COLLINS
COMPONENT MAINTENANCE MA NUAL with IPL
TDR-94, PART NO 622-9352
STEP PROCEDURE DESIRED RESULTS
13.0 MUTUAL SUPPRESSION REQUIREMENTS
Ensure that a mutual suppression output pulse occurs that
brackets any transmissions at an amplitude of 20 volts or more.
Verify that a suppression pulse of 15 volts or more pre vents
ATCRBS decoding during that pulse's time interval. Verify
decoder suppression for both top and bottom antenna ports
on the TDR-94D, and only for the bottom antenna port on the
TDR-94.
Output pulse 20 or > volts
ATCRBS suppression
___ (x)
TOP ___ (x) BOT ___ (x)
14.0 SELF TEST REQUIREMENTS (-004 through -008 status
TDR-94/94D only)
Ensure that the UUT initiates Self-Test by grounding the
Self-Test Discrete, P2-54. Only one Self-Test cycle should be
executed each time the P2-54 discrete input is grounded. Verify
that the label 350 output word SSM code changes from 11 to
10 to 01 and back to 11 (normal operation). Transitions from 11
to 10 to 11 are also acceptable.
Method: Switch the Air/ground discrete to ground. Use
"Select card type" (31) from the computer menu to select
CONTROL-ALT CARD TYPE . Use menu option (9), "Control
Select Lines", to set the control to ARINC bus 0. Use menu
option (36) "TDR Bus A", to change to ARINC label 350. Note
the 350 word displayed on the computer screen. Set the
Self-Test discrete to active and update the 350 word display
by rapidly selecting option 11 three times and pushing the
enter key. Verify that the third two-digit number in the 350 word
changes from 60 to 40 to 20 then back to 60, or from 60 to 40
back to 60. Reset the Self-Test discrete to inactive.
N
OTE: The 350 word may blank at the first update,
if so repeat procedure.
Unit executes a self test cycle ____ (x)
Final Performance (Customer Acceptance) Test. Cont.
Table 1001/Table 34-50-96-99A-009-A01
34-50-96
Page 1039
May 18/06