9
USB & SD card playback:
Before start the USB & SD card playback, please copy
the MP3 format music file into the storage device; then insert your device into
the slot on the rear panel of unit. Short press the mode button to switch the
play mode (Green LED for USB mode, yellow LED for SD mode); the unit will
decode and playback the track automatically after few seconds. Press and hold
the /- button to adjust and get the suitable volume output; short
press the previous and next button to skip the playing track.
Notes:
a. We do not recommend connect the USB with extension cable, which
will impact the audio signal transfer, and may cause intermittent sound
output.
b. The supported storage device of USB & SD is up to 32 GB
（
not guarantee to
all brands
）
.
c. The USB, SD card supported music file is MP3, WMA format (not guarantee all
MP3, WMA format).
d. Please kindly note the USB & SD card playback mode is only available when
the device insert into the unit successfully.
AUX IN:
The unit includes AUX IN function, which allows us to connect with
external music player(like MP3 player etc), and get sound output from this
unit. Using 3.5mm stereo audio cable(not include) connect the headphone or
line out jack of your external player, and plug the another terminal of audio
cable into the AUX IN jack on the rear panel. Then short press the mode button
till white color LED light on; select and play the music from your external
player; Press and hold the /- button to adjust and get the suitable
volume output for listening.
Notes:
a. If you connect this unit to the LINE OUT jack of your external device (if
available), you can only adjust the volume on this unit. If you connect this unit
to the HEADPHONE jack of your external device, you may need to adjust both
volume controls of your external device and this unit to obtain the desired
volume.
Trouble shooting
1. Cannot power on the unit.
a. Please check if the power source was connected properly.
2. Background noise on the FM radio.
a. Please try to adjust the FM frequency slightly in order to get more
accurate broadcasting frequency.
b. Please try to adjust the antenna, or move the unit next to the window
in order to get better signal.
c. Please tune to another station for listening.
HR7BR
