There is no sound.

• The volume level is set to zero.

• Turn the volume up. [Details]

• Media volume level is set to zero.

• Increase the media volume. [Details]

• The headphone plug is not inserted firmly into the headphone jack.

• If the headphones are connected improperly, the sound from the headphones will be impaired. Insert the headphone plug until it clicks into place. [Details]

• The headphone plug is dirty.

• Clean the headphone plug with a soft dry cloth.

• The song that you want to play back is not selected.

• Select the song on your Walkman.

• A Bluetooth connection is active.

• Sound is not emitted from the headphones when a Bluetooth connection is active. Deactivate the Bluetooth connection.

• An HDMI connection is active.

• Deactivate the HDMI connection.

• Accessories are connected to the WM-PORT jack.

• Disconnect accessories from the WM-PORT jack.

• If the problem still persists after performing the remedies above, press the RESET button to reset your Walkman. [Details]