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HDMI gives me great picture but no sound.

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Old 10-04-2007, 02:18 PM   #1
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Question HDMI gives me great picture but no sound.

I'm a newbie at this -- hope this is the right forum. I have a Panasonic CT-30WX54 HDTV monitor, 2 or 3 years old. I had a Motorola off-the-air receiver, and got good HDTV reception using the Component output, since it had no HDMI output. The Motoloa died, and I just got a new Samsung DTB-H260F, which I like a lot. It has an HDMI interface, as does the TV. So, wanting the best picture, I connected it. Got great picture, but no sound. Using the component interface, I get good sound and picture, but I would like to get the HDMI interface working. The Samsung is OK -- I tried it on another TV with HDMI and got sound fine once I selected PCM sound output on the receiver. I tried two other HDMI cables, no luck. The problem seems to be in the monitor. Any ideas? Thanks!
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Old 10-04-2007, 03:00 PM   #2
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I assume you already tried the following, but if not:

1. Look in the service manual for settings and or troublshooting suggestions.
2. Go into the TV's audio settings in the main menu and see if you need to activate the HDMI/digital audio.

Do you get any soun at all (humming/buzzing)? If no go, it may me an issue with your HDMI input and audio board since you ruled out the STB and cable. If you can't get it, there is nothing wrong with going back to component video..
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Old 10-05-2007, 07:23 AM   #3
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Yes, I have done all those things. There is absolutely no sound -- no hiss, no nothin'. I'm ok with component output, it's just that my manual states that HDMI gives "the best picture" and why not try for the best? (Actually, I've looked at both and can't really see any improvement with HDMI vs. component!) I'd still like to get it working. Are the newer versions of HDMI backward-compatible with the old version? Thanks for any help you're able to give!
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Old 10-05-2007, 06:10 PM   #4
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Have you checked the manual and settings for HDMI/Audio on the Samsung DTB-H260F? Could be set to the wrong audio format or set to off . . . dunno?
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Old 10-06-2007, 06:26 AM   #5
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Yes, I have. The Samsung receiver has a slide switch on the rear panel. One position is for component output, and the other is for HDMI. I even tried getting sound by connecting separate audio cables along with the HDMI cable, but evidently the sound is shut off on the audio output jacks when the switch is in the HDMI position. I have also selected PCM rather than dolby, because I don't have dolby. That worked when I tried it on another TV with HDMI. I'm satisfied that I have isolated the problem to my Panasonic TV monitor, but have run out of ideas on what to do next.
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Old 10-06-2007, 08:53 AM   #6
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Bad HDMI input on the TV???

TV does not support PCM audio???? It should, but . . . . .Check the manual, I guess.
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Old 10-06-2007, 08:59 AM   #7
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Quote:
Originally Posted by oleguy View Post
I'm ok with component output, it's just that my manual states that HDMI gives "the best picture" and why not try for the best? (Actually, I've looked at both and can't really see any improvement with HDMI vs. component!)
Well, at least you're like "most" of us.
Indeed, very few people "claim" that they can see a difference between the two connections.

Quote:
I'd still like to get it working. Are the newer versions of HDMI backward-compatible with the old version? Thanks for any help you're able to give!
Yes, they are all supposed to be backward compatible.
See here: http://www.prillaman.net/hdmi_faq.html
and here: http://www.hdmi.org/learningcenter/f..._specification
for more than you will ever want to know about HDMI.

Since it seems to be the TV, and you have confirmed that the receiver works fine (and you like it), perhaps better to just use component until you buy a new TV.

One last thing to try - borrow or buy an upscaling DVD player with HDMI output and try connecting to the TV - who knows?
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Old 10-24-2007, 06:22 PM   #8
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This is interesting because I have the same problem. I hava a new Sony BR2 . It is hooked up with HDMI to my sat dish. It works sometimes and sometimes not. ?? I can adjust the volume when on an HD channel and sound comes in and picture out. When picture comes on again the sound goes out. Sound is fine on other channels that are not HD. I have tried unplugging and different HDMI in puts and the same thing. I have several sound adjustments and I turned on options.
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Old 10-31-2007, 05:37 PM   #9
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Default Sony BR3's

The BR3 has an autosensing circuit on their HDMI ports.
Use Case: HDMI cable that delivers digital video and audio from your receiver to your TV. Your 4.1/6.1 setup runs through the same receiver. You output the analog preouts from the receiver to the TV so that your volume with work in lock-step with the receiver (e.g. using your TV speakers as center channel in the 4.1/6.1 setup, completing a 5.1/7.1 configuration).
No sound ... Why? When there is digital audio coming over the HDMI cable, you cannot use the analog inputs. There is no setting on the TV to actually force the analog audio inputs to be processed. It will always give priority to the digital, even though that may not be the configuration you're looking for.
This kind of 'Apple' mentality, of programming functionality for plug n play because Sony assumes your too inept to figure it out, makes me wanna barf. BR3s are a giant waste of money if you wanna put it in a 5.1/7.1 setup if you ask me. Buy a this year's Samsung LCDs.
(THERE IS A WORKAROUND: use an HDMI to DVI adapter, then DVI to HDMI cable, that will cut out any audio signal that would be passed, disabling their crap circuitry/busted logic. Thats if you can withstand the insertion loss of using those mechanical adapters).
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