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Page Title:
Table 9-1. Checkout (Continued) |
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 T.O. 12P4-2APX-192
NAVAIR 16-35TS1843-1
TM 11-6625-1646-25
Table 9-1. Checkout (Continued)
STEP
CIRCUIT FUNCTION
NO.
SWITCH POSITION
PROCEDURE
INDICATION
TESTED
12.
PRF SELECT - 80%
Connect cable CG-
Displayed pulses are displaced
Mode I timing.
by 3.0 sec (nominal).
3691/U to oscilloscope
TRIGGER and A2TP1
and ground on TS-
1843A/APX. Synchro-
nize oscilloscope.
13.
MODE SELECT - 2
Displayed pulses are displaced
Mode 2 timing.
by 5.0 sec (nominal).
14.
MODE SELECT - 3/A
Displayed pulses are dis-
Mode 3/A timing.
placed by 8.0 sec (nominal).
15.
MODE SELECT - C
Displayed pulses are displaced
Mode C timing.
by 21.0 sec (nominal).
MODE C CIRCUIT TEST - ON
16.
MODE SELECT - 1
Pulse width at 50% amplitude
Timing pulses.
is 0.8 (+0. 1) sec.
MODE C CIRCUIT TEST - OFF
Rise time between 10% and 90%
Timing pulses.
amplitude points is 0.1 sec
maximum.
Decay time between 90% and
Timing pulses.
10% amplitude points is 0.2
sec maximum.
17.
Oscilloscope TRIGGER
Counter displays 800 (100)
Timing generation.
SLOPE - INT. +
hertz.
Change TS-1843A/APX
A2TP1 connection to
A2TP2. Connect
oscilloscope VERT.
SIG. OUT to counter.
18.
Change TS-1843A/APX
Counter displays 1.0 MHz
Timing generation.
(4. 762 KHz).
A2TP2 connection to
A2Y1.
9-7
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