TB 9-4920-456-24
Table 7. Indicator Light Test.
Calibration test fixture
Test instrument
Test instrument indicator
switch position
keyboard section
(highlighted)
INPUT/OUTPUT S2
(MODE 4)
1
DSBL
(MODE 4)
2
HOLD
(MODE 4)
3
VER BIT
(TRANSPONDER
4
TEST/MON NO-GO
CONTROL)
(TRANSPONDER
5
STATUS-ANT
CONTROL)
(TRANSPONDER
6
STATUS-KIT
CONTROL)
71
(TRANSPONDER
STATUS-ALT
CONTROL)
(MODE 4)
8
B CODE
(MODE 4)
9
ADVSY
102
SPARE1
(TRANSPONDER
CONTROL)
Set TI M-C interlock toggle switch to Out.
1
Refer to figure 1 for location.
2
NOTE
SELECTOR Sl switch will remain in position D for remainder
of keyboard input/output tests.
(13) Set INPUT/OUTPUT S2 switch on calibration test fixture to 11.
(14) Press RESET key on TI TEST SET keyboard.
TI display will indicate
TESTING APX-72/APX-64.
(15) Set INPUT/OUTPUT S2 switch on calibration test fixture to 12.
(16) Press RESET key on TI TEST SET keyboard.
TI display will indicate
TESTING APX-100/APX-101.
(17) Set INPUT/OUTPUT S2 switch on calibration test fixture to 13.
(18) Press RESET key on TI TEST SET keyboard.
TI display will indicate
TESTING APX-100.
(19) Set INPUT/OUTPUT S2 switch on calibration test fixture to 14.
(20) Press RESET on TI TEST SET keyboard, then press STBY key on TI
TRANSPONDER CONTROL keyboard. TI TEST GO indicator on TRANSPONDER
CONTROL keyboard will light.
(21) Set switches on calibration test fixture to positions listed in table 8. Indicators
and indicator conditions are listed for each position.
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