Clarion VX401A Owner's Manual & Installation Manual page 38

USB DEVICE
Problem
USB device cannot be in-
serted.
USB device is not recognized.
No sound heard with the dis-
play "NO FILE" shown.
Sound skips or is noisy.
The video image of iPod/iPhone
is disturbed.
Bluetooth
Problem
Cannot pair the Bluetooth en-
able device with the car audio
system.
The audio quality is poor after
connection with a Bluetooth
enabled device.
VX_VZ401A说明书.indd 37
Cause
The USB device has been
inserted with wrong direction.
The USB connector is broken.
The USB device is damaged.
Connectors are loose.
No MP3/WMA file is stored in
the USB device.
MP3/WMA files are not en-
coded properly.
The TV Signal setting of the
iPod/iPhone is not set cor-
rectly.
Cause
The device does not support
the profiles required for the
system.
The Bluetooth function of the
device is not enabled.
The microphone is not cor-
rectly positioned.
The Bluetooth reception is
poor.
Measure
Reversing the connection
direction of the USB device,
try it again.
Replace with a new USB
device.
Disconnect the USB device
and reconnect. If the device
is still not recognized, try
replacing with a different USB
device.
Store these files properly in the
USB device.
Use MP3/WMA files encoded
properly.
Set the TV Signal setting
(NTSC/PAL) of the iPod/iPhone
correctly.
Measure
Use another device to con-
nect.
Refer to the user manual of the
device for how to enable the
function.
Use optional external micro-
phone and adjust the position
of it.
Move the device closer to the
car audio system or remove
any obstacle between the
device and the system.
VX401A/VZ401A
2011-1-10
37
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