@Steims posted:I found that there was an open in the wires to the speaker.Would that cause a subcomponent to fail on the Railsounds 5.5 board? Yes, absolutely an intermittent connection or worse, that potentially opens the door up for a short to frame ground or something else could and might blow the audio amplifier IC.The removable chips work when I swap them to a known working board. Good, you got lucky. That's about as lucky as you can expect. A typical fault it kills the chips and then you are soundless.
Unless you are good at SMD soldering, I would replace the board and ensure that the failure of open speaker wires or failing speaker is resolved to not kill the new board.
Second part is, you may not visibly be able to see the fault, and even though with a magnifier or microscope sometimes it can be seen, modern tiny electrics can fail and "look fine".
