JVC LVT1990-006C ユーザーズマニュアル

■Recording 

■Karaoke

■Timer

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.

No sound can be 
recorded to a USB 
device. 

No title can be added to 
tracks/groups.  

The recordable capacity of the 
USB device is full. You can 
record up to 999 tracks to a 
USB device. 

Delete some tracks/groups. 

39

The USB device is not compati-
ble with this system. 

Use another USB device. 

–

The USB device is write pro-
tected.  

Some karaoke func-
tions do not work.  

When the recording function is 
working, you cannot operate 
any of the karaoke functions.

Quit recording and then operate 
the desired karaoke function. 

37, 41-44 

Depending on the disc/file, you 
cannot operate some karaoke 
functions.

This is not a malfunction. 

–

The playback timer does 
not work. 

This system is on. The play-
back timer works only when the 
system is off. 

Turn off the system. 

11

Troubleshooting (continued)

UX-GN7V[US]EN.book  Page 55  Monday, January 19, 2009  11:51 AM