11
SYMPTOM
POSSIBLE PROBLEM
SOLUTION
No Charging
AC adaptor or USB cable not plugged
properly
Plug the AC adaptor into a wall outlet and plug the
connector into the supply jack on the unit.
Defective AC adaptor
Use a good adaptor to verify.
Defective AC outlet
Use other AC-powered product to verify.
Defective USB port of PC
Make sure PC is on and use the other USB port to
verify.
No Sound in
Bluetooth mode
Bluetooth shut-down due to low
battery power
Charge the battery.
Unlinked to cell phone
Link with cell phone as guided.
MICROBOX is placed out of working
range
Place MICROBOX within 30-ft of cell phone
Volume level was set too low
Increase volume of MICROBOX , and that of
source device if necessary.
AUX IN socket was plugged
Unplug AUX IN .
AUX no sound
Audio cable not plugged properly
Check if the audio cable is properly and firmly
plugged.
Volume level was set too low
Increase volume of MICROBOX , and that of
source device if necessary.
Sound Distortion
Volume level was set too high
Lower down volume by tapping VOL- button.
Source distortion or noise
Poor sound quality from cell phone. This can be
verified with Bluetooth devices of other types like
CD player.
Lower down volume level, shut down BASS or
adjust EQ of the old-version iPod if used.
Battery low
Recharge the battery .
Unit hot
Long-time operation at high volume
Lower down volume level or shut down power
for a while.
No output from USB
DC OUT
Battery low
Recharge the battery.
DC OUT is not on
Tap Power button for 2 seconds and back-light
flashes red & green alternatively to power on.
Charger cable not connected properly
Check to make sure the cable is properly and
firmly connected.
Defective charging cable
Use a good cable to verify.
