Fosi Audio DA2120A Operating instructions

English Fosi Audio Hi-Fi Home Amplifier DA2120A

☆Troubleshooting

No sound

- Check the correct input mode is selected at the power amplifier terminal.

- Check the speaker terminal / banana head contact for short circuit, please use

bare wires to connect the device.

- Check that the TV / DVD / other device's audio output is PCM output. The device

does not allow DTS / Dolby output.

Noise

- Check the power plug for poor contact. Replace the socket or power supply for

testing.

- Please unplug the signal cable to check whether the noise is still emitted, check

whether the signal cable is damaged or dirty, use shielded signal cable.

Insufficient power

- The maximum output power of the amplifier can reach 50W x2 @ 4ohm, suitable

for 2-8ohm, the larger the impedance, the power will gradually decay.

Optical failure

- Check that the optical interface is free of dirt and clogging.

- Check that the optical cable is not folded.

- Multiple plug tests to ensure a good connection.

English Fosi Audio Hi-Fi Home Amplifier DA2120A

- Replace the optical fiber cable or the audio source to check whether the

amplifier is a problem.

Bluetooth failure

- Check that the device has Bluetooth input selected.

- The amplifier supports no more than 2 devices for connection. Please do not use

3 devices for connection or disconnect other Bluetooth devices manually.

- The effective transmission distance of Bluetooth is 65ft (20M), please do not

exceed this range and stack obstacles.

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