Below is a generic pic of the DMM that I'm using. I also have a super duper GreenLee DMM with all kinds of buttons, but the Radio Shack DMM is much easier to operate. Sorry for the huge picture. I found it online. I set it the meter the same as shown in the pic, for testing voltage. It defaults to Auto range and DC setting. Not sure if it matters, but I connect the red lead to the other red connector on the DMM.
Last night, I replaced R30 and R40, and possibly made a little progress.
Voltage now reads a consistent 235v at R30.
R40 reads 235v on the side closest to R30, and on the other side, R40 read 177v
I hooked it up and tested for audio last night, but still no sound.
The reading on the both 4 pin connector between green and white is still unchanged at roughly 6v-7v