17
TROUBLESHOOTING GUIDE
PROBLEM
POSSIBLE CAUSE
SOLUTION
No power when
plugged in
AC adapter is not plugged into the
AC outlet.
Insert the AC adapter into the AC outlet.
The AC outlet may not have
power.
Check the outlet with a working lamp or other
electrical appliance.
No sound
Master volume control is set to
minimum.
Turn up the master volume.
Volume control on TV set/PA
system is set to minimum.
Turn up the volume of the TV/PA system.
TV set/PA system power is OFF.
Turn on the power at TV/PA system.
CD PLAYER does
not work normally
or the TFT color
monitor shows
“No Disc”
Disc inserted upside down.
Insert disc correctly.
Cable plugged into AUX IN jack.
Remove AUX IN cable
Disc is dirty.
Wipe it clean with soft cloth.
Disc is scratched or warped
Use a new disc.
A non-standard disc is inserted.
Only use discs bearing identification logos.
Lens is dirty.
Clean the optical pickup with a CD lens cleaner.
Moisture has formed inside the
CD deck.
Wait about 20 to 30 minutes to let it dry out.
Karaoke system needs to be
reset.
Disconnect the machine from power source for
about 5 minutes.
Cannot pair with a
new Bluetooth
enabled device
An active paired Bluetooth device
is already connected to KN355BTB
system.
You need to turn off the Bluetooth function of the
currently connected external Bluetooth device so
as to release the KN355BTB system for a new
pairing and connection.
USB port does not
work normally or
the TFT color
monitor shows
“No USB”
USB thumb drive is not inserted
properly.
Insert the USB thumb drive properly and firmly
USB thumb drive is not supported
in this system.
Try some USB thumb drives which can be
supported in this system
No playable file.
Make sure your USB thumb drive has playable
files in MP3 or MP3+G format.
No sound through
TV home stereo
Source selection on your TV home
stereo is not set properly.
Select AUX IN as the source for your TV home
stereo.
Improper connection to stereo
system or PA.
Follow directions on ‘Audio Connection’ page for
connecting to a home stereo system.
Video cable is not connected
properly to the TV.
Connect the video cable to the VIDEO OUT of
the unit and to the TV VIDEO IN jacks.
