[1.0 No Sound Output, Different Av Cable Didn't Help]

Thank you for your reply, it is very helpful. Yes, both L and R analog channels have no output.

Great idea to try the digital output. -.I soldered in a coaxial cable to AVIP points 6 and 24 and it does have output sound over digital coaxial. I'm assuming this means the analog problem lies with the Filter/Amplifier Coupling Network, the WM9709, or the associated traces?

I have found the WM IC on the board but I'm still searching for the Filter/Amp.

[1.0 No Sound Output, Different Av Cable Didn't Help]

I have a 1.0 xbox that was working perfectly up until the sound output quit. I have tried different cables, different TVs but...nothing.

I'm thinking hardware issue...does anybody have suggestions for where on the motherboard I should start looking? Thanks.