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TAS2781EVM: Cannot hear any sound from speaker

Part Number: TAS2781EVM
Other Parts Discussed in Thread: TAS2781

Tool/software:

Hi, I just received a TAS2783EVM and installed PPC3 with TAS2781 EVM App but I cannot hear any sound from speaker.

I haven't changed any DIP switch configuration since receiving the unit from TI.

The unit shows up under device manager as "TI USB UAC2.0" and "USB Input Device" using HID driver.

I am unable to play audio via "TI USB UAC2.0" device, the attached speaker makes no sound and I am unable to measure any signal between OUT+ and OUT-

I believe that I have followed whatever sparse documentation that I've been able to find.

I am powering the unit with a 5v 3A supply via the barrel jack connector and connecting to my PC via the micro-USB port.