User's Manual

Common faults
and removal
Fault phenomenon
Causes
Solution
No sound
1. Not power on
2. Not press the function switch
3. Volume knob in off position
4. Loudspeaker not in place
1. Pay attention to power connection
2. Press the corresponding function switch
(keyboard switch) to adjust the volume knob.
3. Turn the loudspeaker switch to current use
position
No sound from one side of built-in loudspeaker
Rear loudspeaker switch not in correct position
Turn the switch to correct position
No sound from one side of external loudspeaker box
1. Loudspeaker wire not connected well
2. Loudspeaker switch not in EXTSP position
1. Check the connection of loudspeaker wire
2. Turn the loudspeaker switch to EXT SP position
Discrete sound and lack of low frequency of external
loudspeaker box
Reverse connection of loudspeaker wire “+-”
Correctly connect loudspeaker wire
Volume distortion
1. Inaccurate tuning
2. excessive sound volume
3. Great increase in low or high pitch sound
1. Readjust radio station
2. Adjust the sound to the distortion free position
3. Turn the low pitch knob to proper position
Loud noise
1. Bad connection of antenna
2. Interference from external environment
1. Check antenna connection or turn the antenna
switch to corresponding position
2. Turn off the interference electric device or
change environment