TROUBLESHOOTING
Refer to the chart below if this unit does not function properly. If the problem you are experiencing is not listed below or if the instructions below do not help, set this unit to the standby mode, disconnect the power cord, and contact the nearest authorized YAMAHA dealer or service center.
■ General
Problem | Cause | Remedy | See | |
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This unit fails to turn | The power supply cord is not connected or | Connect the power supply cord firmly. | — | |
on. | the plug is not completely inserted. |
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| The impedance setting is incorrect. | Set the impedance to match your speakers. | 13 | |
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| The protection circuitry has been activated | Check that the speaker wires are not touching each | 10 | |
| because of a short circuit, etc. | other and then turn the power of this unit back on. | ||
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| The IMPEDANCE SELECTOR switch on | Set the IMPEDANCE SELECTOR switch to either | 13 | |
| the rear panel is not set to either end. | end when the power of this unit is turned off. | ||
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| This unit has been exposed to a strong | Set this unit to the standby mode, disconnect the | — | |
| external electric shock (such as lightning | power supply cord, plug it back in after 30 seconds, | ||
| or strong static electricity). | then use it normally. |
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No sound | Incorrect input or output cable | Connect the cables properly. If the problem persists, | 9 | |
| connections. | the cables may be defective. | ||
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| No appropriate input source has been | Select an appropriate input source with the INPUT | 15 | |
| selected. | selector on the front panel (or one of the input | ||
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| selector buttons on the remote control). |
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| The TAPE MONITOR function is turned | Turn off the TAPE MONITOR function. | 3 | |
| on. |
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| The SPEAKERS A/B switches are not set | Turn on the corresponding SPEAKERS A or | 15 | |
| properly. | SPEAKERS B. | ||
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| Speaker connections are not secure. | Secure the connections. | 10 | |
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The sound suddenly | The protection circuitry has been activated | Check that the IMPEDANCE SELECTOR setting is | 13 | |
goes off. | because of a short circuit, etc. | correct. | ||
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| Check that the speaker wires are not touching each | 10 | |
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| other and then turn the power of this unit back on. | ||
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Only the speaker on | Incorrect cable connections. | Connect the cables properly. If the problem persists, | 9 | |
one side can be |
| the cables may be defective. | ||
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heard. |
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Incorrect setting for the BALANCE | Set the BALANCE control to the appropriate | 16 | ||
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| control. | position. | ||
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There is a lack of bass | The + and – wires are connected in | Connect the speaker wires to the correct + and – | 10 | |
and no ambience. | reverse at the amplifier or the speakers. | phase. | ||
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A “humming” sound | Incorrect cable connections. | Connect the audio plugs firmly. If the problem | 9 | |
can be heard. |
| persists, the cables may be defective. | ||
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| No connection from the turntable to the | Make the GND connection between the turntable and | 9 | |
| GND terminal. | this unit. | ||
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The volume level is | The record is being played on a turntable | The turntable should be connected to this unit through | — | |
low while playing a | with an MC cartridge. | the MC head amplifier. | ||
record. |
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The volume level | The component connected to the TAPE | Turn on the power of the component. |
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cannot be increased, | OUT or the MD OUT jacks of this unit is |
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or the sound is | turned off. |
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distorted. |
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INFORMATION | ADDITIONAL |
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