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No sound for DVD, Blu-Ray, or Cox via digital.

Sony Blu-Ray BDP-S360
Lexicon DC-1 Digital Controller
2 Rotel RB-980BX powers amps (2x120 each)
Pair of Sony SS M3's (vertically biamped)

I use no effects, equalization, loundness, etc. The DC-1 is set to "Bypass." The Blu-Ray player is connected to the DC-1 via toslink. Unfortunately, I only get sound using this connection when playing a cd. If watching a DVD or Blu-Ray, I have to switch to rca's--same thing for my Cox Cable box. I contacted Lexicon Support, and they essentially shrugged. Is it worth taking the DC-1 to a repair shop to update something (is it the dac)? Am I instead better off waiting and replacing the unit down the road? Any guidance is much appreciated.
poprhetor
elizabeth
6,726 posts
 
A two channel DAC will NOT decode a multichannel signal, which is in a different format.
The data stream from your player is in the two channel CD format for CDs, and other codecs for other types of disc.
You would need a receiver with digital inputs (which can recognize and decode those non-two channel codecs)
OR, a BluRay or DVD player which will change the multi channel coding into the two channel code and THEN output it to the two channel DAC. (My Technics DVD-A10 player does this via a menu in the player)
poprhetor OP
57 posts
 
This is an AV receiver (6.1), so why would it need a two-channel signal?

"Bypass " bypasses effects such as Logic 7, Panorama, etc. The issue is unchanged with or without effects. I suppose that was an extraneous detail. Sorry for any confusion.
rwwear
2,692 posts
 
Since you are apparently only using a stereo signal Elizabeth is correct. If your going to use the coaxial or Toslink inputs on the Lex, you need to set the Bluray player to mix down the hi res signal to PCM stereo. You will probably get better sound out of the RCA outs though because the Toslink connector will not pass hi res audio and the analog outs will or a least your player will decode the hi res signal and output them through the RCA outs.
elizabeth
6,726 posts
 
OK going back to "bypass" I would then bet the 'bypass' is for music, allowing all the video stuff etc to be bypassed. Well, I then guess 'bypass' is two channel, and for only stereo in your unit? Then it also probably only allows a PCM (two channel) digital input signal. Probably you need to NOT use the bypass! to allow the multichannel signal to be processed. It is most likely a design in the Lexicon logic system Lexicon does not want to/can't fix.
I would think they feel if you want multichannel, you would not use the bypass (which was probably designed for a pure two channel use?)
This is all conjecture, as I do not know your Lexicon device. But from what has been said, and other products with bypass features.. this is what it seems to be.
elizabeth
6,726 posts
 
Then, on the other hand it may be the Sony is screwed up. No way to know which product is not sending the signal?
After all, SACD will not transmit via digital output, and you BluRay IS a Sony... 8^)
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