| Problem | Cause | Measure | English |
| No sound heard. | The USB memory device | Record MP3/WMA/AAC files properly to the USB | |
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| contains no MP3/WMA/AAC | memory device. |
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| files. |
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| The files are not proper MP3/ | Use only properly encoded MP3/WMA/AAC files. |
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| WMA/AAC format. |
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| Files are DRM copyright | See page 22 for details on how to cancel DRM |
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| protected. | protection. |
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| Connectors are loose. | Disconnect the USB memory device and reconnect |
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| securely. |
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USB |
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Sound is | The MP3/WMA/AAC files are | Use only properly encoded MP3/WMA/AAC files. |
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interrupted or has | improperly encoded. |
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| noise. |
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| USB memory | The USB memory device is | Disconnect the USB memory device and reconnect. If |
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| device isn’t | damaged. | the device is still not recognized, try replacing with a |
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| recognized. |
| different USB memory device. |
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| Connectors are loose. |
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| Can’t insert USB | The USB memory devices | Try reversing the connection direction of the USB |
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| memory device. | has been inserted improperly. | device (usually the brand name surface should be |
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| facing left). |
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| The USB connector is | Replace with a new USB memory device. |
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| broken. |
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DXZ775USB 41
