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 cord is not plugged in or is not | Firmly plug in the power cord. | ||
STANDBY/ON switch is pressed, or turns | completely inserted. |
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into the standby mode suddenly soon after |
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The IMPEDANCE SELECTOR switch on the | Set the switch to either end closely. | |||
the power is turned on. | ||||
rear panel is not set to either end closely. |
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It happens that this unit does not work | There is an influence of strong external noise | Turn this unit into the standby mode and | ||
normally. | (lightning, excessive static electricity, etc.) or a | disconnect the AC power cord from the AC | ||
| misoperation on this unit while using this unit. | outlet. After about 30 seconds have passed, | ||
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| connect the power and operate this unit again. | ||
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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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| The SPEAKERS switches are not set properly. | Set the SPEAKERS switch which corresponds | ||
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| to the speakers to be used to the ON position. | ||
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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 been activated | Turn this unit into the standby mode, and then | ||
| because of short circuit etc. | turn this unit on to reset the protection circuit. | ||
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| The SLEEP timer has functioned. | Cancel the SLEEP timer function. | ||
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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 at | Connect the speaker wires in the correct phase | ||
| the amplifier or speakers. | (+ and | ||
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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 | ||
| terminal. | turntable and this unit. | ||
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The volume level is low while playing a | The record is being played on a turntable with | The player should be connected to the unit | ||
record. | an MC cartridge. | through the MC head amplifier. | ||
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The volume level cannot be increased, or | The component connected to the REC terminals | Turn the power to the component on. | ||
sound is distorted. | of this unit is turned off. |
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The sound is degraded when listening with | This unit is in the standby mode. | Turn the power to this unit on. | ||
the headphones connected to the compact |
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disc player or tape deck that are connected |
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with 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 input source cannot be changed, | The CD DIRECT AMP switch is ON. | Switch off the CD DIRECT AMP switch. | ||
though the INPUT selector is turned. |
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Using the BASS, TREBLE, BALANCE and | The CD DIRECT AMP switch is ON. | The CD DIRECT AMP switch must be switched | ||
LOUDNESS controls does not affect the |
| OFF to use those controls. | ||
tone. |
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The remote control transmitter does not | Direct sunlight or lighting (of an inverter type of | Change position of the main unit. | ||
work. | fluorescent lamp etc.) is striking the remote |
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| control sensor of the main unit. |
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The distance or range within which the | The batteries of this remote control transmitter | Replace the batteries with new ones. | ||
remote control transmitter can be used is | are too weak. |
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short. |
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