Hello, can you see if there is audio at the exit of the jungle? The volume output is through pin 6 on LA76931.
Hello, I put you above the jungle volume output, there is no diagram. It would be necessary to see if another brand uses the same chassis that not if it is the one that you put, it seems to me a rare number for chassis model.
You are going to have to make one is easy, because otherwise you need an oscilloscope. I search the web as a follower of audio signals and you will get a few easy to do.
Perfect, you're going to save a lot of time in knowing the flaw when it comes to audio.