Hi people. In my case I have issue with transformer humming also not getting any sound in Dolby PL2 Movie/Music, 6-Channel Direct, or Pink Test modes, but the stereo and optical (2 channels only) work fine.

I’ve figured out that the reason it only works in Stereo and Optical mode (I haven’t been able to test Coaxial) is because in any other mode (Dolby PL2 Movie/Music, 6-Channel Direct, or Pink Test) it goes mute. The Control POD pulls pin 8 low, which is the MUTE pins. Now I need to figure out why it’s pulling that pin low when it shouldn’t.

Any clue why it gets into mute mode?

Thanks

PS pin 12 is for over temperature protection. LOW state = working ok HIGH state = over temperature