Across ?Geronimo wrote:Yeah I know Q1 is for sound and I did check the pin order, seems ok.
I measured and got 2.976 Volts and 5.15 Volts across R9. Is guess this is normal?
I assume you measure relative to ground. You're supposed to get close to 3.3v on one lead of R9 and close to 5V on the other lead - relative to ground.
If you get 5.15v on one lead then it means your power supply gives a bit too much power but that's another issue entirely.
IMHO, a scope is required to get this one diagnosed properly.