63
Reference
■ For a connected USB device
■ For recording and editing operations
If this system does not work properly even after taking the action in the above “Possible solution” 
Many functions of this system are controlled by microprocessors that can be reset by recycling the power 
supply. If pressing any button does not result in the normal action, disconnect the power cable from the outlet, 
wait for a while, and connect the power cable again.
Problem Possible cause Possible solution
Reference 
page
Files on a USB device 
cannot be played back.
If “CANNOT PLAY THIS 
DEVICE” appears on the TV 
screen, the files on a USB 
device are not playable.
Check that the file types recorded 
on the USB device are compatible 
with this system.
56
MP3, WMA, WAV, 
JPEG, ASF, DivX, 
MPEG1 or MPEG2 file 
cannot be played back. 
The connected USB device 
may include files of different 
types (MP3, WMA, WAV, JPEG, 
ASF, DivX, MPEG1 or MPEG2).
Select “FILE TYPE”. You can play 
back only the files of the types 
selected with “FILE TYPE”. 
If the main unit has read the file 
before you make the “FILE TYPE” 
setting, reset “FILE TYPE” to the 
desired file type, and then 
disconnect the USB device and 
connect it again. 
41
Problem Possible cause Possible solution
Reference 
page
You cannot record.
(“CANT REC” is 
displayed.)
The disc is not CD-DA. The format of a source disc must 
be CD-DA. 44
The capacity of the USB mass 
storage class device is full or there 
have been maximum number of 
groups/tracks.
Delete unnecessary groups/
tracks.
46
There have been maximum 
number of tracks in the current 
group. 
Delete unnecessary tracks.
46
The USB mass storage class 
device is write-protected.
Release the protect.
–
The current disc is CD-R/CD-RW 
protected by the rights 
management.
The format of a source disc must 
be CD-DA. 45
You cannot change the 
title of a group/track.
The USB mass storage class 
device is write-protected.
Release the protect.
–
(“EDIT ERR” is 
displayed.)
Something abnormal may be 
happened.
Disconnect and connect the USB 
mass storage class device. If the 
message does not disappear, 
change the USB mass storage 
class device. 
–
Troubleshooting (continued)
NX-F40_NX-F30[B].book  Page 63  Wednesday, December 24, 2008  10:04 AM