B200

· Check the power adapter. Only connect the power adapter to a power outlet, not to the unit. If the LED on the adapter blinks or does not light up, the adapter is   defective.

· Check the power connection.

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· The device did not power on. Check LED and the power connection.

· Check that the proper input source is selected in the front panel.

· Check the connections for all devices.

· Insert connection cables all the way in.

· Check the volume of all device.

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· One channel’s positive output and negative output mayb be reversed, please check and correct it.

· The cables may not be connected correctly, check and reconnect them.

· robably overloaded. Try turning down the volume.

· Check to see if the problem is with the source, downstream equipment and cables.

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· Check to see if the problem is with the source, downstream equipment and cables. You can try swapping the left and right B200 connections.

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· Check the gain of each B200.

· Check to see if the problem is with the source, downstream equipment and cables. You can try swapping the left and right B200 connections.

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· Incorrect firmware version. Please re-flash the correct firmware.

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· Firmware upgrade failed. Please re-flash the firmware.

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· Negative and positive voltage abnormal

· Probably overloaded. Try turning down the volume and then reboot the unit.

· Too low load impedance or short-circuit load

 a  Check if the speaker cables are connected in place. (Note: when connecting the speaker cables, there can be no bare leakage of copper wire touching the metal       enclosure.)

 b  Check if you have followed the connections as per our instructions in user manual.

 c  heck if the speaker cables are defective, try with other cables.

 d  Check if the speakers are defective.

· Disconnect other devices and reboot. If the problem still persists, your unit may be defective. Please contact the store where you purchased it.

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· The protection circuit has been activated due to a rise in temperature within this unit. Unplug the power supply and reboot B200 after the unit cools down. Please put the unit in a place having good ventilation.

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· Show the current firmware version.

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· Error firmware. Please re-flash the correct firmware.

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· Please re-flash the correct firmware. Try to reboot the computer or use another computer.

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· The file does not end with ".Topping". Please re-flash the correct firmware.

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· Firmware upgrade failed. Unplug and re-plug the power cable, and then flash the firmware again.