Hi!

Just soldered in the other ic and guess what? same problem!

How interesting! (Okay, maybe not...)

I wouldn't think that the replacement module would be broken in
exactly the same way as the first, unless I were doing the work. (At
times, my life is a comedy.) I suppose that something could be loading
down the power supply or the output of the amplifier module. I'm not
sure what it would be.

William