TM 55-1510-215-MTF
a.
Defective gyro compass set.
b.
Incorrect deviation card.
K22. ADF radio set inoperative.
a.
No power to ADF receiver.
K23. No ADF audio heard in headsets.
a.
Defective ADF receiver.
b.
Defective ADF control panel.
c.
Defective ADF antenna.
d.
Defective audio control panel.
K24. ADF radio magnetic indicator does not indicate magnetic
bearing to station.
a.
Defective ADF receiver.
b.
Defective RMI.
c.
Defective ADF antenna.
d.
Defective ADF control panel.
K25. Quality of ADF reception is poor.
a.
Defective ADF control panel.
b.
Defective audio control panel.
c.
Defective ADF receiver.
K26. No VOR audio tone heard in headset.
a.
Defective VOR receiver.
b.
Defective VOR control panel.
c.
Defective audio control panel.
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