TROUBLESHOOTING
| Symptom |
| Possible Cause |
| Remedy | |
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| Speakers emit a humming |
| The PowerCenter is sharing AC power with |
| • Connect your PowerCenter | |
| or buzzing noise. |
| equipment that is not properly grounded. |
| to a dedicated outlet. | |
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| • Try unplugging different components from | |
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| the PowerCenter one at a time to see if the | |
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| noise stops. If a component is discovered | |
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| to be improperly grounded, attach a copper | |
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| wire from the component’s chassis to the | |
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| PowerCenter’s grounding post. | |
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| The display unit is not |
| There is not a secure connection between |
| • Make sure each end of the | |
| functioning. |
| the display unit and the main unit. |
| phone cable is securely fastened to the | |
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| display unit and the main unit. | |
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17
