I’m hoping for some help here. I purchased the speaker pHAT to add to a Pi Zero W last Saturday, I soldered the speaker and connected it up on Wednesday. I installed MusicBox on to the Pi Zero and tested it all out. The sound leave was quiet but acceptable, once I’d found the right settings on MusicBox. I ran it again today and pushed the volume from 85% to 100% which indeed produced a louder sound. I paused the music whilst doing something and forgot I’d left the system on for quite a while. When I realised the whole system was rather hot. Having left it to cool I then checked the playback, but it was now too quiet to hear much and certainly about half as loud as it was. I have taken a good look at the soldering of the wire from the speaker to the board and the connections still look good. For the headers I used the pimoroni hammer headers (that was nice and easy) so no solder issues there.
Any other thoughts on what has happened, or did I overheat the whole system and something has broken?