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 TM 11-6625-2884-30/NAVAIR 16-35TS3615-2
Adjust oscilloscope
1.
display to position
PULSE SYNC leading
edge on left vertical
line. Measure time
delay between PULSE
SYNC leading edqe and
leading edge of-DET
VIDEO pulse. The
delay shall be 0.8
.15 s. Use 50
ohm terminations,
Chan A -UP.
DET VIDEO (A)
0.02 VOLTS/DIV
PULSE SYNC (B)
0.5 VOLTS/DIV
SWEEP: 0.5 s/DIV
1
a. Check voltages of
BTS Power Supplies
1A3 PS1, 1A3 PS2,
1A3 PS3 and 1A3
PS4.
b.
Replace circuit
card 1A3A1. Re-
store circuit card
if there is no
improvement.
c. Replace RF Modula-
tion Assembly 1A3.
3-44
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