MX3s

Error Code

Cause Analysis

Troubleshooting / Solution

GAIN -1 / GAIN -2

Firmware upgrade failed

Unplug the power supply and reboot MX3s then upgrade the correct version of firmware.

GAIN -3

Upgraded the incorrect firmware

Upgrade the correct version of firmware. If it cannot be rebooted, then unit is considered defective.

P-U / P-d

Input too high/low voltage

Use the included power adapter.

r-d / r-r / r-A / P-0

Abnormal power supply or unit may be defective.

Check the power adapter, disconnect all the inputs and outputs of MX3s and reboot. If that still not works, unit is considered defective.

r-H

Abnormal headphone amplifier DC

Switch other songs or turn down the volume. Disconnect all the inputs and outputs of MX3s and reboot. If that still not works, unit is considered defective.