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 | PROBABLE CAUSE | REMEDY |
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The unit does not switch ON when | The power cord is not connected nor | Securely connect the power cord. |
POWER is pressed. | completely connected. |
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The disc tray does not close | A foreign object is obstructing the tray. | Carefully check the disc tray and |
completely. |
| remove the foreign object. |
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Playback does not start. | The disc is damaged. | Check the disc carefully; replace it if |
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| necessary. |
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| There is moisture on the laser pickup. | Wait 20 to 30 minutes after switching the |
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| unit ON before trying to play back a disc. |
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| The disc is loaded upside down. | Reload the disc with the label side up. |
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| The disc is dirty. | Clean the disc. |
| The | Replace the disc with a correctly- |
| recorded correctly. | recorded disc playable with this unit. |
| The disc is a |
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| playable with this unit. |
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Playback is delayed, or begins at | The disc may be scratched or | Check the disc carefully; replace it if |
the wrong place. | damaged. | necessary. |
No sound. | Improper output cable connections. | Connect the cables properly. If the |
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| problem persists, the cables may be |
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| defective. |
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| Improper amplifier operation. | Set the amplifier controls to the correct |
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| input selection. |
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| The OUTPUT LEVEL +/– buttons are | Adjust the volume by using the |
| set at minimum. | OUTPUT LEVEL +/– buttons. (CDX- |
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| 497 only) |
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Sound “skips”. | The unit is being subjected to vibrations | Relocate the unit. |
| or impacts. |
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| The disc is dirty. | Clean the disc. |
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Sound “hums”. | Improper cable connections. | Securely connect the audio cables. If |
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| the problem persists, the cables may be |
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| defective. |
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Noise from a nearby tuner. | The tuner is too close to the unit. | Move the tuner and the main unit |
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| farther apart. |
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Noise from inside of the disc tray. | The disc may be warped. | Replace the disc. |
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No sound from the headphones. | The OUTPUT LEVEL +/– buttons are | Adjust the volume by using the |
set at minimum. | OUTPUT LEVEL +/– buttons. | |
The remote control does not | The batteries of the remote control are | Replace the batteries with new ones. |
work. | too weak. |
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| Remote control is too far away or tilted | Use within 6 m and 60° radius. |
| too much. |
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| Direct sunlight or lighting (of an inverter | Reposition the main unit. |
| type fluorescent lamp etc.) is striking |
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| the remote control sensor of the main |
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| unit. |
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TV functions strangely when the | Remote control is being used near TV | Relocate the main unit away from the |
remote control is used. | set with a remote control sensor. | TV or cover TV’s remote control sensor. |
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