TB 9-6625-2337-35
(24) Set the oscilloscope to measure the period between variable pulse 1 and variable
pulse 2. Verify that the period is within limits listed in table 10.
(25) Repeat technique of (23) and (24) above for remaining rows in table 10. Verify
that the period is within limits listed in table 10.
VP 1
VP1
VP2
VP2
Measurement
Test description
width
delay
width
delay
type
Min
Max
VP1/2 1 s delay
0.5 s
10 s
0.5 s
1 s
0.9 s
1.1 s
Period
VP1/2 100 s delay
0.5 s
10 s
0.5 s
100 s
99.9 s
100.1 s
Period
VP1/2 20 s delay
10 s
10 s
10 s
20 s
19.9 s
20.1 s
Period
10 s
10 s
10 s
20 s
VP1/2 duty cycle
Duty cycle
49 %
51 %
VP1 10 s delay
10 s
10 s
10 s
20 s
9 s
11 s
Delta time 1
VP2 30 s delay
10 s
10 s
10 s
20 s
29 s
31 s
Delta time 2
1
Delay from channel 1 to first pulse on channel 2.
2
Delay from channel 1 to second pulse on channel 2.
(26) Disconnect cable from TI VAR PULSE output and connect it to the TI IFF
VIDEO OUT FIRST REPLY output.
(27) Press TI keys as listed in (a) through (d) below:
(a)
Use the arrow keys to highlight OR CHALLENGE, ENTR (YES).
(b)
Use the arrow keys to highlight 1ST REPLY, ENTR (YES).
Press FUNC and ↑ keys.
(c)
(d)
3, ENTR (1st REPLY).
(28) Set the oscilloscope to first measurement function listed in table 11. Verify that
the oscilloscope indication is within limits listed in table 11.
(29) Repeat technique of (27) through (28) above for remaining rows in table 11 using
settings and connections listed in table 11. Verify that the measurement type is within
limits listed in table 11.
NOTE
Oscilloscope channel 2 connections column indicated the
connection to be used in repeating technique of (29) above.
Oscilloscope
VP2
channel 2
Measurement
Test description
VP1
VP2
delay
connection
type
Min
Max
1ST REP 20 s PER
20 s
19.9 s
20.1 s
ON
ON
IFF VIDEO
Period Channel 2
OUT FIRST
REPLY
20 s
1ST REP Duty cycle
ON
ON
IFF VIDEO
Duty
49 %
51 %
OUT FIRST
Channel 2
REPLY
9 s
11 s
1ST REP 10 s DLY
20 s
ON
OFF
IFF VIDEO
Delta Time
OUT FIRST
Channel 1 to 2
REPLY
20 s
1ST REP 30 s DLY
29 s
31 s
OFF
ON
IFF VIDEO
Delta Time
OUT FIRST
Channel 1 to 2
REPLY
