HT-RC180 all of a sudden no sound output (not muted, etc.) Turned it on yesterday, and everything works, but no output. Observations: No static/noise floor when volume is increased to maximum-absolutely ZERO output. No physical/mechanical clicking when switching between listening modes-which normal occur. Unit IS detecting audio-screen switches to Dolby-D back to pro-logic, etc. when input sources are changed--i.e. pressing stop on a dvd.

SOURCE: surround mode

have you turned it on from the dvd menu the easist way to tell if you have is there will be little speakers that light up on your amps screen (more than two) when the movie is playing (not The menu) Not all movies are encoded in DTS hopefully this helps

SOURCE: LEFT SPEAKER HAVE STATIC SOUND AND NOT CLEAR

Hi what are you listening to like cds or tape or radio also are you using copy cds

SOURCE: TX-SR304 AV receiver

If you put DVD with Dolby Digital soundtruck it will show on your TX-SR304 Dolby Digital mode, and if you have DVD with DTS mode it will show DTS

SOURCE: Dolby output is Pro Logic II, even though source is Dolby Digital

I know nothing about tivo but dvd player might need to be on bitstream to pick it up.I have to change mine when listening to music. hope this might help.

SOURCE: receiver acting weiard

Again, onkyo has downloadable cd software (its free) that you run threw cd player via fiber optics that will fix the issue. onkyo.com,choose region,click support at the bottom of page find Download Center or
Software Downloads/Updates: for info. With onkyo its usually a simple chip issue. If that fails , find contact support , e-mail them your issue and simply ask for a downloadable repair disc- I did.