L70

Error Code

Cause Analysis

Troubleshooting / Solution

r7

Upgraded the incorrect firmware

Upgrade the correct version of firmware.

Displaying Err with 3 seconds pause

Firmware upgrade failed

Upgrade the correct firmware.

r2/r3

1. Too high temperature

2. Overload

3. Too low load impedance or short-circuit load

4. Unit may be defective

1. Unplug the power supply and reboot L70 after the unit cools down. Put L70 in an environment with good heat dissipation.

2. Try to turn down the volume level and reboot L70.

3. Check the output connection.

4. Disconnect all the inputs and outputs of L70, if it still remains the same, the unit may be defective.

r5

1. Abnormal headphone amplifier DC

2. Unit may be defective

1. Try to turn down the volume level and reboot L70 after the units cools down.

2. Disconnect all the inputs and outputs of L70, reboot L70 after the units cools down, if it still remains the same, the unit may be defective.