TM 1-1510-225-MTF
d. Defective antenna.
K17.
Radar inoperative.
a. System circuit breaker tripped.
b. Defective radar receiver-transmitter.
c. Defective wiring.
Kl8.
Radar antenna does not scan.
a. No power to radar antenna.
b. Defective radar antenna.
K19.
No radar display on EHSI.
a. Defective radar receiver-transmitter.
b. Defective wiring.
K20.
No radar targets on EHSI or targets do not move
with TILT control.
a. Defective radar receiver-transmitter.
b. Radar TILT control inoperative.
K21.
Transponder cannot be interrogated or provides
unsatisfactory response.
a. Mode C not set or defective.
b. Air data computer defective.
c. Defective transponder.
d. Defective antenna.
e. Defective coax.
f. Defective wiring.
TROUBLESHOOTING GUIDE L - STABILITY AND
CONTROL - NOT APPLICABLE
3 - 2 8
