JVC SP-NXF30F Benutzerhandbuch

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Refer
ence
■For the karaoke function
■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
The karaoke function 
cannot be activated. 
A microphone is not connected 
to the main unit. 
Connect a microphone.
41
The microphone mixing 
function is not activated. 
Activate the microphone mixing 
function. 
42
The scoring function 
cannot be used. 
The menu screen of a DVD 
VIDEO, VCD, SVCD is 
displayed on the TV screen.
Start playback. The menu screen 
disappears and the scoring 
function starts working.
45
The score is displayed 
as “_ _” or seems 
wrong. 
The singing time is less than 3 
minutes. 
To obtain a correct score, sing the 
song completely.
45
Your voice is too small or the 
sensitivity of the connected 
microphone is low.
Sing in a loud voice, adjust the 
sensitivity if possible or replace the 
microphone with one with a higher 
sensitivity. 
45
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.
48
The capacity of the USB mass 
storage class device is full or there 
have been maximum number of 
groups/tracks.
Delete unnecessary groups/
tracks.
50
There have been maximum 
number of tracks in the current 
group. 
Delete unnecessary tracks.
50
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.
48
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-F30[U].book  Page 67  Tuesday, April 21, 2009  6:23 PM