TROUBLESHOOTING
Refer to the chart below when this unit does not function properly. If the problem you are experiencing is not listed below or if the instructions given below do not help, disconnect the power cord and contact your authorized YAMAHA dealer or service center.
Problem | Cause | What to Do |
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Power is not supplied even | The power cord is not plugged in, or the | Plug the power cord into an AC outlet |
though the STANDBY/ON button | POWER switch is set to the OFF | and/or set the POWER switch to the ON |
is set to the ON position. | position. | position. |
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No sound. | The VOLUME control is set to 0. | Turn the VOLUME control to the right. |
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| Speaker cords are not connected | Connect them securely. |
| securely. |
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Sound level is too low. | Speaker cords are not connected | Connect them correctly, that is L (left) to |
| correctly. | L, R (right) to R, “+” to “+” and |
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| Setting of the PHASE switch is not | Set the switch to the other position. |
| proper. |
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| A source sound with few bass | Play a source sound with bass |
| frequencies is played. | frequencies. |
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| Set the HIGH CUT control to a higher |
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| position. |
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| It is influenced by standing waves. | Reposition the subwoofer or break up |
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| the parallel surface by placing |
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| bookshelves etc. along the walls. |
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The subwoofer does not turn on | The POWER switch is set to the OFF | Set the POWER switch to the ON |
automatically. | position. | position. |
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| The STANDBY/ON button is set to OFF. | Set the STANDBY/ON button to ON. |
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| The AUTO STANDBY switch is set to | Set the AUTO STANDBY switch to the |
| the OFF position. | “HIGH” or “LOW” position. |
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| The level of input signal is too low. | Set the AUTO STANDBY switch to the |
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| “HIGH” position. |
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The subwoofer turns into the | The level of input signal is too low. | Set the AUTO STANDBY switch to the |
standby mode unexpectedly. |
| “HIGH” position. |
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The subwoofer turns on | There is an influence of noise | Move the subwoofer farther away from |
unexpectedly. | generated from external appliances etc. | such appliances and/or reposition the |
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| connected speaker cables. |
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| Otherwise, set the AUTO STANDBY |
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| switch to the “OFF” position. |
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