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 |
The unit fails to turn on when the POWER switch is | Power cord is not plugged in or is not completely | Firmly plug in the power cord. |
pressed. | inserted. |
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No sound or no picture. | Incorrect output cord connections. | Connect the cords properly. If the problem persists, |
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| the cords may be defective. |
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| The MUTING switch is ON. | First, turn the volume control to the full left. Then, |
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| turn the MUTING switch OFF with the remote |
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| control transmitter and adjust the volume. |
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| Appropriate input selector is not pressed. | Press the appropriate input selector corresponding |
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| to the input source. |
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There is no sound or no picture when any input | The input wires are not connected securely. | Connect them securely. |
selector is pressed. |
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| The speaker systems are not connected correctly. | Check and secure the connections. |
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The sound suddenly goes off. | The protection circuit has activated because of | Turning the unit off and then on will reset the |
| 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 connection. | Connect cords properly. If the problem persists, the |
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| cords may be defective. |
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Sound “hums”. | Incorrect cord connections. | Firmly connect the audio plugs. If the problem |
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| persists, the cords may be defective. |
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| No connection from the turntable to the GND | Make the GND connection between the turntable |
| terminal. | and this unit. |
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There is a lack of bass, and no ambience. | The + and – wires are connected in reversed at the | Connect the speaker wires in the correct phase (+ |
| amplifier or speakers. | and |
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The volume level is low while playing a record. | The record is being played on a turntable with an | The player should be connected to the unit through |
| MC cartridge. | the MC head amplifier. |
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No sound from the rear speakers. | The sound output level of the rear speakers is 0. | Turn up the sound output level with the REAR |
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| LEVEL key. |
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| The monaural sound source is played in the | Select another program suitable for the monaurel |
| DOLBY PRO LOGIC or ENHANCED. | sound source. |
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No sound from the center speaker. | The sound output level of the center speaker is 0. | Turn up the sound output level with the CENTER |
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| LEVEL key. |
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| The center mode is in the PHANTOM. | Select the NORMAL or WIDE. |
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| Incorrect sound field program selection. | Select the appropriate program. |
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| No sound field program is selected. | |
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There is a howling sound when playing records at | The turntable and the speakers are too close | Change the location of the turntable or the |
high volume. | together, or the turntable is not located on a firm | speakers. |
| surface. |
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The remote control transmitter does not work. | Direct sunlight or lighting (of an inverter type of | Change position of the main unit. |
| flourescent lamp etc.) is striking the remote control |
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| sensor of the main unit. |
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The distance or range within which the remote | The batteries of this remote control transmitter are | Replace the batteries with new ones. |
control transmitter can be used decreases. | too weak. |
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The sound is degraded when monitoring is | Power cord of this unit is not plugged. | Plug in the power cord. |
performed by using the headphones connected to |
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the compact disc player or cassette deck which are |
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connected with this unit. |
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