Users Manual
Problems Solutions
No sound from Speaker
A. If using internal battery, check whether it is on DC track;
B. If using AC, check whether the power plug is plugged in 
 and it is in the boot state;
C. Check whether the minimum sound is adjusted;
D. Check whether the pattern corresponds to the source channel
Noisy when playing
A.Check auxiliary AUX input, unplug the input cable or 
 replace the memory.
B.Check if the power supply of the wireless microphone or 
 headset is off.
Remote control is invalid 
or distance is short
A.Check if the remote control installs the battery and 
 check that the battery is sufficient.
B.Check whether it is aimed at the receiver window
 or whether it exceeds the effective reception 
 distance.
No sound from microphone
A.Check if the microphone installs the battery correctly
 and check that the battery is sufficient;
B.Check if the microphone is on and its volume, or
 whether it exceeds the effective reception distance;
C.Check whether the microphone frequency is the
 same as the machine receiving frequency.
Microphone whistling/
noise/distortion
A.Check if the battery is sufficient;
B.Adjust the microphone volume or reverbproperly;
C.Adjust the distance between the microphone 
 and the speaker, prohibit the microphone directly
 towards the speaker
Invalid external battery
A.Check if place the batteries correctly and the 
 screws are tighten;
B.Check if DC mode is on;
C.Check if the battery is sufficient and the cables 
 are connected.
U disk/SD card can’t be read
A.Check whether U disk/TF card is plugged correctly;
B.Check whether there are video files in the U 
 disk/TF card
Playback is choppy and 
sound distortion
A.Check if the battery is sufficient;
B.Check if MIC PRIORITY is on, if yes, please turn off
Can’t record or recording 
sound is small
A.Check if the memory is inserted and see if the capacity 
 of the storage is full; 
B.Check that the speaker or microphone volume is 
 on when recording and adjust the appropriate 
 volume.
Problems & self –check list
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