Troubleshooting - prime3 APS21 Owner's Manual

APS21
USB
· Plug in USB mass storage to a USB slot on the rear panel of the device.
· Press to switch source t o USB. Plug in USB device to play back music on rear panel.
· Press Skip/backward button to return to the previous track.
· Press Skip/forward to skip to the next track.
Please make sure your USB device is FAT16 or FAT32 file system, and your music file is MP3 format.
Important notes: The max supported USB device is 32GB. An extent USB cable for playing connection is not
recommend, because that will impact the audio signal input.
TF/MicroSD card playback
Please copy the MP3 format music into the TF or MicroSD card device (max supported 32GB) before start the
playing, and then insert the card into the slot on the rear panel of unit. Power on the unit, and short press the
Mode button to enter the MicroSD playback mode; the speaker will read out the card device automatically,
and get the music output after few seconds.
In TF/MicroSD card playback mode, short press the Skip Forward or Skip Backward Button to select the last or
next preset station. Short press the Play/Pause button to play or pause the music.
Karaoke
Adjust the microphone output volume level properly on the rear panel, then we can start to sing. The unit
includes wired microphone input jack, plug on the wired microphone (not included) into the 6.5mm jack, and
then turn on the microphone for singing.
Tips:
a. When you are using the microphone for Karaoke function, you can adjust the microphone output
volume/bass/echo setting by turn the relative pin on rear panel.
b. There may have a big noise come out from speaker when you adjust volume/ /bass/echo to high level due
to overloading and distortion on microphone. This is not mal-function. So please turn and increase these
settings slowly, and turn it back or turn off microphone for retrying in case of such big noise faced.
c. You can use the karaoke function and listen the music at same time; in case that you need increase the
Karaoke volume and decrease the background music, you can try to adjust the separate microphone volume
and main volume knob.
Trouble shooting
1. The unit cannot power on.
a. Please charge the unit and try again.
b. Please contact the service centre if the issue remains.
2. There is no or intermittent sound output in Bluetooth mode. a. Please turn off the Bluetooth, and re-pair
with the speaker.
b. Please put your Bluetooth device closer to the speaker.
3. No available FM station or background noise in FM.
a. Please plug on the 3.5mm stereo audio cable and re-scan the available FM station.
b. Please tune to another FM station for listening.
c. Please try to move the unit next to the window in order to get better reception.
4. The speaker cannot read out the music in TF or microSD card.
a. Please check if you insert the TF or microSD card into the slot properly. b. Please check if the audio format is
in MP3/WAV.
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