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 the | Firmly plug in the power cord. | |
| STANDBY/ON is pressed, or set in | plug is not completely inserted. |
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| the standby mode suddenly soon |
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| The IMPEDANCE SELECTOR switch | Set the switch fully to the upper or | ||
| after the power has been turned on. | |||
| on the rear panel is not fully set to the | lower end when the unit is in the | ||
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| upper or lower end. | standby mode. | |
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| The unit does not work normally. | The internal microcomputer has been | Set the unit in the standby mode and | |
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| frozen by an external electric shock | disconnect the AC power cord from the | |
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| (lightning, excessive static electricity, | AC outlet. After about 30 seconds have | |
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| etc.) or by a power supply with low | passed, connect the power and operate | |
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| voltage. | the unit again. | |
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| No sound or no picture. | Incorrect output cord connections. | Connect the cords properly. If the | |
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| problem persists, the cords may be | |
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| defective. | |
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| An appropriate input source has not | Select an appropriate input source with | |
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| been selected. | INPUT or TAPE/MD MON / EXT. | |
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| DECODER. | |
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| SPEAKERS have not been set | Set SPEAKERS corresponding to the | |
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| properly. | speakers in use to the ON position. | |
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| The speaker connections are not | Secure the connections. | |
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| secure. |
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| Digital signals other than PCM audio | Play a source whose signals this unit | |
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| and Dolby Digital or DTS encoded | can reproduce. | |
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| signals which this unit cannot |
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| reproduce are input to this unit by |
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Amplifier |
| playing a |
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No picture. | There is no S video terminal connection | Connect this unit’s S VIDEO MONITOR | ||
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| between this unit and the TV, although | OUT terminal to the TV’s S video input | |
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| S video signals are input to this unit. | terminal. | |
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| The sound suddenly goes off. | The protection circuit has been | Set the unit in the standby mode and | |
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| activated because of a short circuit, etc. | then switch on again to reset the | |
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| protection circuit. | |
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| The SLEEP timer has functioned. | Turn on the power, and play the source | |
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| again. | |
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| Only the speakers on one side can | Incorrect setting of BALANCE. | Adjust it to the appropriate position. | |
| be heard. |
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| Incorrect cord connections. | Connect the cords properly. If the | ||
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| problem persists, the cords may be | |
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| defective. | |
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| A “humming” sound can be heard. | Incorrect cord connections. | Firmly connect the audio plugs. If the | |
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| problem persists, the cords may be | |
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| defective. | |
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| No connection from the turntable to the | Make the GND connection between the | |
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| GND terminal. | turntable and this unit. | |
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| The volume level is low while playing | The record is being played on a | The turntable should be connected to | |
| a record. | turntable with an MC cartridge. | the unit through the MC head amplifier. | |
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| The volume level cannot be | The component connected to the REC | Turn on the power to the component. | |
| increased, or the sound is distorted. | OUT terminals of this unit is in the |
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| standby mode. |
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