I have identified the main board usb port as bad. Where can I get one?

Hi @baddaygonegood ,

The tricky part is getting the exact USB connector replacement which will mount correctly and securely onto the motherboard. The connector’s pin out is always the same but the board’s USB mounting lug solder pads position can vary to suit the particular USB that is being used now.

Here’s a link to a supplier of micro USB connectors.

Scroll through and see if you can find one where the position of the mounting lugs on the case of the connector match the position on the connector in your speaker.