USB DEVICE
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USB device cannot be | The USB device has been | Reversing the connection | |
| Problem | Cause | Measure |
| inserted. | inserted with wrong direction. | direction of the USB device, |
Owner’s |
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| try it again. |
| The USB connector is broken. | Replace with a new USB | |
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| device. |
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Manual | USB device is not recognized. | The USB device is damaged. | Disconnect the USB device |
| Connectors are loose. | is still not recognized, try | |
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| and reconnect. If the device |
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| replacing with a different USB |
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| device. |
| No sound heard with the | No MP3/WMA file is stored in | Store these files properly in the |
| display “NO FILE” shown. | the USB device. | USB device. |
| Sound skips or is noisy. | MP3/WMA files are not | Use MP3/WMA files encoded |
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| encoded properly. | properly. |
| The iPod/iPhone’s video | The TV Signal setting of | Set the TV Signal setting |
| image is disturbed. | the iPod/iPhone is not set | (NTSC/PAL) of the iPod/iPhone |
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| correctly. | correctly. |
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Bluetooth
Problem | Cause | Measure |
Cannot pair the Bluetooth | The device does not support | Use another device to |
enable device with the car | the profiles required for the | connect. |
audio system. | system. |
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| The Bluetooth function of the | Refer to the user manual of the |
| device is not enabled. | device for how to enable the |
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| function. |
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The audio quality is poor after | The microphone is not | Use optional external |
connection with a Bluetooth | correctly positioned. | microphone and adjust the |
enabled device. |
| position of it. |
| The Bluetooth reception is | Move the device closer to the |
| poor. | car audio system or remove |
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| any obstacle between the |
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| device and the system. |
42VX401E/VZ401E