ADDITIONAL INFORMATION
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. When taking the service, the
| SYMPTOM | CAUSE | REMEDY |
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| The unit does not switch ON when | The AC power cord is not connected or not | Securely connect the power cord. |
| the STANDBY/ON switch is pressed. | completely connected. |
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| No sound from one speaker. | Loose speaker connections. | Connect properly. |
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| The sound suddenly goes off. | The protection circuit has been activated | Check the speaker wires are not touching each other |
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| because of a short circuit, etc. | and then turn the unit back on. |
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| No sound from an external unit | Incorrect cord connections. | Connect the cords properly. If the problem persists, |
| connected with this unit or play does |
| the cords may be defective. |
| not begin. |
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| Input source selection is not proper. | Make a proper input source selection. | |
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| Sound distorted. | The component connected to this unit is | Connect the AC power cord of the component to an |
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| disconnected from AC outlet. | AC outlet. |
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| Excessive static in FM broadcasts. | Interference from starting motor of a nearby | Position the FM antenna as high and as far away |
RECEIVER |
| car. | from nearby roads as possible. Connect using a |
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| coaxial cable. | |
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| Interference from the thermostat of a nearby | |
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| electrical appliance. |
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Noise increases during stereo | Antenna input is too weak due to obstructions | Check the antenna connection. | |
broadcasts. | or excessive distance from the broadcasting |
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| station. | Install a | |
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Stereo broadcasts are noisy and | Insufficient antenna input. | Install an antenna appropriate for the electric field | |
| STEREO indicator blinks on and off. |
| strength of your area. |
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| Cannot select preset stations. | Preset memory has been erased. | Reprogram memory presets. |
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| Buzzing or static during AM | Interference from sources such as lightning, | The problem is difficult to eliminate, but can be |
| broadcasts. | fluorescent lights, electric motors or thermostat | lessened by grounding AM loop antenna. |
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| of nearby electrical appliance. |
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| TV or microprocessor is being used nearby. | Move away from TV or microprocessor. |
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| AM broadcast sensitivity is poor. | Radio signal is weak or the antenna is not | Properly connect the AM loop antenna. |
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| properly connected. |
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| Change orientation of the AM loop antenna. | |
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| Install an external AM loop antenna. |
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| Cannot set timer. | Current time is not set. | Set current time. |
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| The unit does not work normally. | The internal microcomputer has been frozen | Unplug the AC power cord from the wall outlet, and |
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| by an external electric shock (lightning, | then plug in again after about one minute. |
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| excessive static electricity, etc.) or the power |
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| supply with low voltage. |
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