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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The unit fails to turn on when the POWER | Power cord is not plugged in or is not | Firmly plug in the power cord. |
switch is pressed. | completely inserted. |
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No sound. | Incorrect output cord connections. | Connect the cords properly. If the problem |
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| persists, the cords may be defective. |
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| Appropriate input source is not selected. | Select an appropriate input source with the |
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| INPUT selector. |
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| Speaker connections are not secure. | Secure the connections. |
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The sound suddenly goes off. | The protection circuit has activated because | Turning the unit off and then on will reset the |
| of short circuit etc. | protection circuit. |
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Only one side speaker outputs the sound. | Incorrect setting of the BALANCE control. | Adjust it to the appropriate position. |
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| Incorrect cord connections. | Connect the cords properly. If the problem |
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| persists, the cords may be defective. |
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There is a lack of bass, and no ambience. | The + and – wires are connected in reverse | Connect the speaker wires in the correct |
| at the amplifier or speakers. | phase (+ and |
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Sound “hums”. | Incorrect cord connections. | Firmly connect the audio plugs. If the |
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| problem persists, the cords may be defective. |
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| No connection from the turntable to the GND | Make the GND connection between the |
| terminal. | turntable and this unit. |
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Sound level is low. | The LOUDNESS control is functioning. | Set the LOUDNESS control to the FLAT |
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| position. |
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| The MUTING switch is ON. | First, turn the volume control to the full left. |
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| Then, turn the MUTING switch OFF with the |
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| remote control transmitter and adjust the |
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| volume. |
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Using the BASS, TREBLE, BALANCE, | The PURE DIRECT switch is ON. | The PURE DIRECT switch must be switched |
LOUDNESS controls and SUBSONIC |
| OFF to use those controls. |
FILTER switch does not affect the tone. |
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The remote control transmitter does not | Direct sunlight or lighting (of an inverter type | Change position of the main unit. |
work. | of flourescent lamp etc.) is striking the |
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| remote control sensor of the main unit. |
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The distance or range within which the | The batteries of this remote control | Replace the batteries with new ones. |
remote control transmitter can be used | transmitter are too weak. |
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decreases. |
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