TM 11-6625-1831-13
5-2b.
Electrical Test of Test Panel (Cont)
LOCATION/ITEM
ACTION
REMARKS
b. Pulse generator No. 2
Disconnect from J9.
Connect to ECCM MOD TRIG J26
jack.
Set output for: 750ns wide, 4.5
0.45V negative pulse, 1667 + 70
repetition rate.
c. Oscilloscope
Connect A input to ECCM MOD
Malfunction 51
TRIG J26 jack.
Connect B input to ECCM COINC
J25 jack.
Trigger from A input. Check for 9 +,
s from A signal to B signal. Check
pulse width of B signal-should be0.
0.1 s. See illustration.
Move B input to ECCM SCOPE
SYNC J19 jack.
Check for 9 2 s from A signal to
signal.
Check pulse width of B signal -
should be 0.3 0.1 s. See
illustration.
Set sweep time to 0.5 ms/cm.
Move B input to ECCM MT OUT J1
jack.
Check that the B signal toggles wit
each pulse oil the A signal.
See illustration.
d. All test equipment
Set power switch to OFF.
Disconnect.
5-22
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