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 | Power cord is not plugged in or is not | Firmly plug in the power cord. | |
| STANDBY/ON is pressed, or turns | completely inserted. |
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| into the standby mode suddenly |
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| The IMPEDANCE SELECTOR switch | Set the switch fully to the upper or | ||
| soon after the power is turned on. | |||
| on the rear panel is not fully set to the | lower end. | ||
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| upper or lower end. |
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| The unit does not work normally. | There is an influence of strong external | Turn this unit into the standby mode | |
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| noise (lightning, excessive static | and disconnect the AC power cord from | |
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| electricity, etc.) or a misoperation while | the AC outlet. After about 30 seconds | |
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| using this unit. | have passed, connect the power and | |
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| operate this 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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| Appropriate input source is not | Select an appropriate input source with | |
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| selected. | INPUT. | |
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| SPEAKERS are not set properly. | Set SPEAKERS corresponding to the | |
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| speakers in use to the ON position. | |
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| Speaker connections are not secure. | Secure the connections. | |
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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, though S | OUT terminal to the TV’s S video input | |
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| video signals are input to this unit. | terminal. | |
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| The sound suddenly goes off. | The protection circuit has been | Turning the unit into the standby mode | |
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| activated because of short circuit etc. | and then on again will reset the | |
Amplifier |
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| protection circuit. | |
sound. |
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The SLEEP timer has functioned. | Cancel the SLEEP timer function. | |||
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| Only one side speaker outputs | Incorrect setting of BALANCE. | Adjust it to the appropriate position. | |
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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 the power to the component on. | |
| increased, or the sound is distorted. | OUT terminals of this unit is in the |
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| standby mode. |
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| No sound from the rear speakers. | The sound output level of the rear | Raise the sound output level of the rear | |
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| speakers is set to minimum. | speakers. | |
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| A monaural sound source is being | Select another sound field program | |
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| played in DOLBY PRO LOGIC or | suitable for the monaural sound source. | |
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| DOLBY PRO LOGIC ENHANCED |
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| mode. |
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| No sound from the center speaker. | The sound output level of the center | Raise the sound output level of the | |
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| speaker is set to minimum. | center speaker. | |
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| The center channel mode is in NONE | Select LARGE or SMALL. | |
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| mode. |
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| Incorrect sound field program selection. | Select the appropriate program. | |
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English
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