Daewoo DSK-390 - Troubleshooting; General Issues; Bluetooth Connectivity Problems

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TROUBLESHOOTING
General
No power
- Check that AC power cord is securely inserted in the unit and the electrical
outlet.
- Check the Power On/O switch is turn to On position.
- If battery is at Plug in the AC Power cord to charge and operate.
Keys no response
- Turn the Power On/O switch to O, and then On again to reset the unit.
- Unplug the AC Power cord and plug it back again.
No sound heard
- Make sure the LINE connected volume is turn to reasonable level.
- Make sure the Bluetooth connected device output the audio via BT out.
- Make sure the Bluetooth connected device volume is turn to reasonable
level.
Bluetooth Operations
Audio quality is poor
- Bluetooth reception is poor. Move the Bluetooth device nearer to the
Speaker.
Cannot pair to Bluetooth device
- Make sure both Bluetooth device and Speaker is not connected to any other
Bluetooth device.
- Make sure the Bluetooth On/O switch located below Speaker is slide to On
position.
- Make sure the Blue LED on the Speaker is fast ashing (Pairing mode).
- Turn Power switch to O, and then On again, Press and hold BT button for 2
seconds to enter into pairing mode.