Hi folks, first time poster and somewhat not-a-prop-guy, sorry :tongue:
Got my EMIC2 the other day, sent Down Under, which was not from the "first batch" (ie it was only ordered a few days before the scheduled in-stock day after the first lot ran out). Anyway, all good, it arrived with no visible damage to the box, double bonus.
So here's my dilemma. I have the thing connected to a PC, with a CP2102 USB-serial connector. The EMIC2 comes up, initialises correctly, and I can talk to it using a terminal program (in my case, I am using TeraTerm). I can ask it to say things, I can ask it to play the demos, I can see and set properties correctly; all that works. The LED changes colour as expected (red when busy), and the serial response works as expected (":" returned once finished a command). But what doesn't work, is sound out. I have tried everything, commercial 8ohm speaker (old PC set that still seems to work), home brew speaker on a plug, but nothing seems to give me a sound out. Volume changes across the entire range, again nothing seems to work.
Now I don't know too much about the electronics of a speaker output, and I don't have a heap of tools (no o'scope) to help track down what might be going on, so I am hoping someone can give me some pointers, like watching voltage across a point with a DMM, or some other suggestions. One thing I am trying now (posting this before I try, hoping to also get some other suggestions to try in this diagnostic session) is a more capable input power supply, in case the CP2102 onboard 3v3 can't give enough current to the EMIC2, but I don't even know for sure if the behaviour that I see is reflective of that (Joe?)
here's hoping for some thoughts - thanks in advance !