English
VX401A/VZ401A
37
English
Owner’
s Manual
USB DEVICE
Problem
Cause
Measure
USB device cannot be in-
serted.
The USB device has been
inserted with wrong direction.
Reversing the connection
direction of the USB device,
try it again.
The USB connector is broken.
Replace with a new USB
device.
USB device is not recognized.
The USB device is damaged.
Disconnect the USB device
and reconnect. If the device
is still not recognized, try
replacing with a different USB
device.
Connectors are loose.
No sound heard with the dis-
play “NO FILE” shown.
No MP3/WMA file is stored in
the USB device.
Store these files properly in the
USB device.
Sound skips or is noisy.
MP3/WMA files are not en-
coded properly.
Use MP3/WMA files encoded
properly.
The video image of iPod/iPhone
is disturbed.
The TV Signal setting of the
iPod/iPhone is not set cor-
rectly.
Set the TV Signal setting
(NTSC/PAL) of the iPod/iPhone
correctly.
Bluetooth
Problem
Cause
Measure
Cannot pair the Bluetooth en-
able device with the car audio
system.
The device does not support
the profiles required for the
system.
Use another device to con-
nect.
The Bluetooth function of the
device is not enabled.
Refer to the user manual of the
device for how to enable the
function.
The audio quality is poor after
connection with a Bluetooth
enabled device.
The microphone is not cor-
rectly positioned.
Use optional external micro-
phone and adjust the position
of it.
The Bluetooth reception is
poor.
Move the device closer to the
car audio system or remove
any obstacle between the
device and the system.
VX_VZ401A说明书.indd 37
2011-1-10 16:57:29