16 NP400
English
Owner’
s
Manual
4. TROUBLESHOOTING
GENERAL
Problem
Cause
Measure
Power does not turn on.
(No sound is produced.)
Fuse is blown.
Replace with a fuse of the same amperage. If the
fuse blows again, consult your store of purchase.
Incorrect wiring.
Consult your store of purchase.
Nothing happens when
buttons are pressed.
Display is not accurate.
The
microprocessor
has malfunctioned
due to noise, etc.
Turn off the power and open the operation panel.
Press the reset button with a thin rod.
Note:
When the Reset button is pressed, turn off the ACC
power.
* When the Reset button is pressed, frequencies
of radio stations, titles, etc. stored in memory are
cleared.”
USB DEVICE
Problem
Cause
Measure
USB device cannot be
inserted.
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.
