TROUBLESHOOTING
If the unit fails to operate normally, check the following points to determine whether the fault can be corrected by the simple measures suggested. If it cannot be corrected, or if the fault is not listed in the SYMPTOM column, disconnect the power cord and contact your authorized YAMAHA dealer or service center for help.
| SYMPTOM | CAUSE | REMEDY |
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| Crackling sounds from time to time | Ignition noise from passing vehicles. | The FM antenna should be put up as high |
| (especially in weak signal areas). |
| as possible, away from the road, and a |
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| coaxial cable used. |
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| Noise from thermostats or other electrical | Attach a noise suppressor to the equipment |
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| equipment. | causing the noise. |
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| FM stereo reception is noisy. | Because of the characteristics of FM stereo | Check the antenna connections. |
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| broadcasts, this is limited to cases where | Try using a high quality directional FM |
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| the transmitter is far away or the antenna | antenna. |
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| input is poor. | Set the TUNING MODE button to the |
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| manual tuning mode. |
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| The STEREO indicator flickers and | Insufficient antenna input. | Use an antenna appropriate for the |
| reception is noisy. |
| reception condition in your area. |
FM |
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| Not tuned correctly. | Tune again. | |
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| There is distortion and clear reception | There is multipath interference. | Adjust antenna placement to eliminate multi- |
| cannot be obtained even with a good FM |
| path interference. |
| antenna. |
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| No stereo effect even with a stereo | The TUNING MODE button is set to the | Set the button so that “AUTO” lights up on |
| broadcast. | manual tuning mode. | the display. |
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| A desired station cannot be tuned in with | The station is too weak. | Use the manual tuning method. |
| the automatic tuning method. |
| Use a high quality directional FM antenna. |
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| Previously preset stations can no longer | The tuner has been unplugged for a long | Repeat the presetting procedure. |
| be tuned in. | period. |
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| Insufficient sensitivity. | Weak signal or loose antenna connections. | Tighten the AM loop antenna connections |
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| and rotate it for best reception. |
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| A desired station cannot be tuned in with |
| Use the manual tuning method. |
| the automatic tuning method. |
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AM | There are continuous crackling and | These noises result from lightning, | Use an outdoor antenna and a ground wire. |
hissing noises. | fluorescent lamps, motors, thermostats and | This will help somewhat but it is difficult to | |
| other electrical equipment. | eliminate all noises. | |
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| There are buzzing and whining noises | Another station is interfering with the | This is impossible to remedy. |
| (especially in the evening). | received station. |
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| A television set is being used nearby. | Relocate this unit away from the TV. |
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