11
In case of trouble with the unit, please look through the problems below and see if
you can solve them yourself before calling your dealer.
CD PL
AYER
RADIO UNIT
WHOLE UNIT
BLUETOOTH
PROBLEM
CAUSE
SOLUTION
Unit does not turn
ON
when
STANDBY
is pressed.
• Unit is unplugged
• Connect unit to AC power
supply
No sound comes
out of the
speakers.
• The external speakers are
disconnected.
• The volume is turned down
(to MIN).
• The input selector does not
match the playback source.
• Connect the external
speakers.
• Adjust the volume.
• Re-select the desired input
source.
The sound is
noisy.
• The unit is too close to a TV
set or another similar
appliance.
• Turn off the TV or other
appliance, and relocate the
unit.
The unit does not
act as expected,
or respond.
• External factors such as
ESD (Electro-static
discharge) affect the unit.
• Remove the power cord and
all power supply devices.
Then re-plug the unit after
one minute.
Cannot listen to
any station, or
signal appears
weak.
• The station is not tuned-in
properly.
• A TV set is being used
nearby and is interfering
with the radio reception.
• Properly tune-in the desired
station.
• Turn-off the interfering TV
set.
The sound is
distorted.
• The antenna is not
• The antenna wire is
not fully extend.
positioned properly.
• Fully extend the antenna
wire.
• Re-position the antenna
until reception improves.
CD stops
immediately after
starting, or unit
pauses or stops
during play.
• The CD is inserted upside
down.
• The CD is dusty or dirty or
there is condensation on
the CD.
• Insert the CD with the
printed side right-side up.
• Carefully clean and dry the
CD.
No sound.
Bluetooth No
Sound
• The CD player is paused.
• Press the PLAY/PAUSE
button.
Specific CD is
noisy, or playback
stops or skips.
• The CD is scratched,
damaged or warped.
• The disc is very dirty.
• Unit is not linked with your
Bluetooth enabled device.
• Go through “Bluetooth Operations
process to link the speakers.
• Relocate the unit within Bluetooth
operating range (32 feet)
• Increase Volume level of your
Bluetooth enabled device.
• Your Bluetooth enabled
device Volume set too low.
• Unit placement out of range.
• The CD should be changed.
• Carefully clean the CD.
TROUBLESHOOTING
Summary of Contents for MM451
Page 3: ...2...
