User Manual

7
TROUBLESHOOTING
Problem Solution
No sound Make sure all headphones are completely plugged in.
Make sure the volume levels are turned up.
Make sure the amplier is receiving an input signal.
LED light is not lit Make sure the 12V DC adapter is plugged into the outlet, and the connector is completely inserted
into the power supply on the back panel of the HMA-41.
Noise or hum The noise might be coming from a faulty input device.
Check if there’s a faulty ground in the signal chain.