HANNspree HF289HJB User Manual page 22

No sound is outputted from
monitor's built-in speaker
22
*Make sure PC audio output cable is connected to screen＇s
LINE IN port (or AUDIO IN port).
*Make sure the sound volume adjustment can be clearly
identified.
*Make sure the System > Silence option in the monitor menu is
on.
*While transferring via HDMI port but no sound is outputted, it
is recommended to select AUDIO INPUT as a PC option, and
make sure PC audio output cable is connected to monitor＇s
LINE IN port(or AUDIO IN port).