PRESONUS Eris Sub8 Owner's Manual page 16

4 Resources
4.2 Troubleshooting
4.2 Troubleshooting 故障排除
No power.First ensure that your Eris Sub8 is plugged in. If it's connected to a
powerconditioner,verify that the powerconditioner is turned on and functioning.
If it is, yet there is still no power to the Sub8, contact PreSonus for a repair.
No power. 首先确保你的Eris Sub8已经插上电源。如果它连接到一个电源调节器
上，确认电源调节器已经打开并正常工作。如果是这样，但Sub8仍然没有开启，
请联系PreSonus进行维修。
No audio. If your Eris Sub8 appears to power on but you hear no sound
whenplayingaudio(thelightsareonbutnobody'shome),firstmakesure
that the cables connected to the subwooferareworking correctly. Also,
verify that the Input Level control is set to provide high enough gain.
No audio. 如果你的Eris Sub8似乎已经通电，但在播放音频时，没有听到任
何声音（灯亮着，但家里没有人），首先要确保连接到低音扬声器的电缆工
作正常。此外，还要验证输入电平控制是否设置为提供足够高的增益。
Hum.Usually,hum is causedby agroundloop.Verifythat all audioequipmentis
connected to the same power source.If you arenot using a powerconditioner,
we highly recommend that you add one. Not only will this help to minimize
hum, it will better protect your equipment from power surges,brownouts,etc.
Hum. 通常情况下，嗡嗡声是由接地回路引起的。确认所有的音频设备都连
接到同一个电源上。如果你没有使用电源调节器，我们强烈建议你添加一
个。这不仅有助于最大限度地减少嗡嗡声，而且可以更好地保护你的设备
免受电源浪涌、断电等影响。
Use balanced cables whenever possible. If your audio device does
notofferabalanced output, youcanconnectit toaDI(direct-injection)
box, which will provide a ground-lift switch and a balanced output.
Use balanced cables whenever possible. （尽可能使用平衡电缆。 ）
如果你的音频设备不提供平衡输出，你可以把它连接到一个DI（直
射）盒上，这将提供一个接地升降开关和一个平衡输出。
Finally, make sure that your audio cables are not run near power cables,
and use cables that are the appropriate length for your application.
Using cables that are too long not only increases the risk of noise,it
increases the likelihood that the cables are coiled, which will essentially
create an antenna that picks up all kinds of audio interference.
最后，确保你的音频电缆不靠近电源线，并使用适合你应用范围长
度的电缆。使用太长的电缆不仅会增加噪音的风险，而且会增加电
缆盘绕的可能性，这好比会形成一个天线，接收各种音频干扰。
Eris Sub8
™
Owner's Manual
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