Troubleshooting guide – Singing Machine SMI440 User Manual
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Troubleshooting Guide
Should this unit exhibit a problem, check the following before seeking service:
No Power
• Power is not on; press the Power On/Off
button to turn the power on.
• Make sure unit is connected to AC power.
• Make sure the batteries are recharged (if not connected to AC power).
No Sound – General
• External device’s volume is set to minimum; raise volume.
• The SMI440BT’s volume is set to minimum; raise volume.
• The audio cable is plugged in. Unplug cable if not using Line In function.
The Bluetooth device cannot pair or connect with the unit.
• You have not activated the Bluetooth function of your device. Refer to the user
manual of your device to activate Bluetooth function.
• The unit is not in pairing mode. Press and hold the Bluetooth Pairing/Play/Pause4;
button until the Bluetooth indicator blinks fast.
• The unit is already connected with another Bluetooth device; disconnect that device
and then try again.
Unit acts erratically or does not react when buttons are pressed.
• Remove AC adapter, wait 20 seconds and reconnect. Then turn on the unit again.
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