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Possible cause
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AM reception condition
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FM reception condition
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• Antenna feeder axis, open circuit
• Antenna feeder plug not attached
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NG: No reception
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YES: Reception possible.
(Sensitivity decreases, but reception is possible under strong electric field.)
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• Antenna feeder axis (+) to ground (-), open circuit
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NG: No reception
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NG: No reception
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• Antenna feeder and antenna, poor ground
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YES: Reception possible
(Noise may occur)
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YES: Reception possible
(Sensitivity decreases, but reception is possible under strong electric field.)
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• Antenna feeder, jack and plug poor connection
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NG: No reception
(Depending on connection conditions)
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YES: Reception possible
(Depending on connection conditions)
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