or Connect
AVS › AVS Forum › Audio › Receivers, Amps, and Processors › Stuck in the PCM mode
New Posts  All Forums:Forum Nav:

Stuck in the PCM mode

post #1 of 59
Thread Starter 
I have the SC-61 receiver. I am stuck in the PCM mode. I am only receiving stereo information. The receiver only shows L and R in the character display, it is not picking up surround information. I have checked all of my settings. In the MCACC set up I can run test sounds from all of the speakers so I know there is a signal getting to each speaker. I am just not receiving a incoming surround signal. Please see the attachment.
_Mike
SC-61_front.jpg 483k .jpg file
post #2 of 59
How are your devices connected to the receiver?

What source are you listening to?
post #3 of 59
Thread Starter 
Any source that is connected. Example: Time Warner DVR (optical connection), OPPO blu-ray (HDMI). All of the various special audio settings simple indicated two channel sound.
_Mike
post #4 of 59
First, how are your output devices set up? If they are configured to send stereo PCM, that's all you'll get.

Also, sometimes the HDMI connection with the TV will force a two channel output. Most receivers have a setting to disable the HDMI audio output, which will prevent the part of the handshake that results in stereo.
post #5 of 59
What happens when you press the STANDARD button on the remote?
post #6 of 59
Thread Starter 
It will the various modes but only in two channel. When I press the "Status" button I get PCM as the read out. Everything was working fine until 24 hours ago, so this does not seem to make any sense. Thank you.
post #7 of 59
If the display reports that it is getting dts-MA, but the output is just L/R, that strongly suggests you've set the receiver to just do stereo.

You mention that the receiver is reporting PCM. But, the attached picture shows DTS Master. That's not a PCM input.
post #8 of 59
you said it was working 24hrs earlier, have you tried doing a processor reset?
post #9 of 59
Thread Starter 
No, as a matter of fact I was just looking up in the manual on how to perform a factory reset. But there goes all of my custom settings. Thanks
post #10 of 59
Thread Starter 
Reseting to the factory defaults did not work.
post #11 of 59
Thread Starter 
Reseting to the factory defaults did not work.
post #12 of 59
what happens if you select ProLogic IIx for surround processing? either using remote or i-app?
post #13 of 59
do you have an actual picture of your unit's display as oppose to a "stock picture".... that may help the forum get you there faster.
post #14 of 59
I remain curious about what the receiver actually reports about the formats of the audio arriving from various sources. The OP mentions PCM, but the picture in the first post shows DTS Master.
post #15 of 59
Quote:
Originally Posted by budwich View Post

do you have an actual picture of your unit's display as oppose to a "stock picture".... that may help the forum get you there faster.

+1
us guessing isn't the most useful...

plus, I'd like to know what processing mode is being tried and what the receiver actually displays when a disc is played. IF the OP is in Pure Direct mode and IF he is playing a 2 ch source, then all he's going to get is 2 channel and whatever format the disc is encoded with (Dolby Digital, PCM, DTS)

plus, if he has the player set to output PCM, then that is what the receiver is going to get.

plus, if it worked just fine then out of the blue changes, that strongly suggests "someone's" fingers pressed a button on a remote or did something in a source's setup menu. things just don't magically change on their own in a day. so the sound format selected seems a likely candidate. receiver could be in stereo mixdown for all we know and all the guessing isn't going to do a thing except waste everyone's time until the poster can accurately describe what the receiver displays, what the i-app displays for the selected sound format, etc. just pointing out the little speaker indicator lights by itself doesn't help much because too many other things are unknown.

mkiedrowski, can you provide more information. you have several people who have posted trying to help.
Edited by ss9001 - 12/31/13 at 12:29pm
post #16 of 59
Thread Starter 
Thanks for the help. That is a stock photo. Sorry about that. I will take an actual photo of the unit. Also, I can run a full acoustic calibration of all speakers with no problem, so the SC-61 is able to see the individual speakers. The source material is a 7.1 blu-ray with an HDMI connection and a DVR with an optical connection. I can get simulated surround modes such as Extended Stereo. The display only shows L and R, no low frequency or surround speakers. It is like they do not exist.
_Mike
post #17 of 59
yes but.... the calibration tests are doing tests of your "output configuration" and has little or nothing to do with the inputs serving your unit. Anyways, as they say "a picture is worth a thousand posts"... :-) as someone else said, it is likely a "finger problem"... maybe.
post #18 of 59
Your receiver should tell you the format information of the arriving audio stream.
post #19 of 59
Thread Starter 
But how can two different sources (blu-ray and cable box DVR) give PCM linear stereo when in the past it was multi-channel. If it is a finger issue, how do I get back to where I should be? I thought that by doing a factory reset that would do it.
post #20 of 59
that's relatively easy.... everything set to "auto" EXCEPT for one thing that is not.... someone not reading a user manual and following their "fingers and buttons"... :-) the possibilities are probably greater than a "stuck in PCM mode unit failure"... :-)
post #21 of 59
Thread Starter 
So are saying that doing a factory reset does not set everything to AUTO?
post #22 of 59
I don't know... you tell us what every default setting is..... compare those to the manual and you will have your answer. Further, there are other ways to cause protocols selections in HDMI land.
post #23 of 59
A reset will return all settings to the defaults. But, again, specifics about the formats of the audio arriving from each device is needed to figure this out. And, as noted in post #4, the HDMI audio output setting on the receiver is often responsible for unexpected stereo.
Edited by BIslander - 12/31/13 at 4:25pm
post #24 of 59
Thread Starter 
Here are a few images of the settings. This is with "Auto Surround". DSC_0018.jpg 190k .jpg file
post #25 of 59
Thread Starter 
post #26 of 59
According to the manual, that display means the signal arriving on the BD input is stereo PCM. In other words, the receiver is just processing what the player is sending.
post #27 of 59
Hi,

Could you also post the exact settings you're using in your sources ?
Like the exact settings in your Blu-Ray player and TV decoder ?

Pictures or just written down would do smile.gif I suspect that the problem is on that side.
post #28 of 59
one other check, what does your "fixed pcm" setting in audio parameter setup indicate?

also, in your pictures, what letters are being display after the SP ... looks like AB????? probably the clue... :-)
Edited by budwich - 12/31/13 at 7:53pm
post #29 of 59
Thread Starter 
Blu-ray (OPPO BDP-103) is bitstream and DVR (Time Warner cable box) is digital audio. Those are the settings on each unit.
post #30 of 59
Quote:
Originally Posted by mkiedrowski View Post

Blu-ray (OPPO BDP-103) is bitstream and DVR (Time Warner cable box) is digital audio. Those are the settings on each unit.
Could you post maybe pictures of those settings?
Not that I don't believe you smile.gif but maybe there is a little setting 'on' which should be 'off' or visa versa.
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Receivers, Amps, and Processors
AVS › AVS Forum › Audio › Receivers, Amps, and Processors › Stuck in the PCM mode