Possible cause

AM reception condition

FM reception condition

• Antenna feeder axis, open circuit

• Antenna feeder plug not attached

NG: No reception

YES: Reception possible.

(Sensitivity decreases, but reception is possible under strong electric field.)

• Antenna feeder axis (+) to ground (-), open circuit

NG: No reception

NG: No reception

• Antenna feeder and antenna, poor ground

YES: Reception possible

(Noise may occur)

YES: Reception possible

(Sensitivity decreases, but reception is possible under strong electric field.)

• Antenna feeder, jack and plug poor connection

NG: No reception

(Depending on connection conditions)

YES: Reception possible

(Depending on connection conditions)