HDMI Connections w/non-HDMI receiver

T

tsfdirect

Audiophyte
I have a Yamaha RX-V757 Receiver, Samsung 56" DLP (1080p), Motorola HD cable box and surround sound. I'm currently using component in and optical to the receiver from cable box and back out from receiver to TV. Sometimes the audio and video are not in sync. I want to use HDMI to get the best picture quality. If I use HDMI from cable box directly to receiver, do I still need to have component connections from receiver to tv? I have I want to use HDMI from cable to TV, since I can't connect this way through the receiver. What is the best way to then connect audio? Very confusing! Any suggestions?
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S

skartzsky

Audiophyte
tsfdirect said:
I have a Yamaha RX-V757 Receiver, Samsung 56" DLP (1080p), Motorola HD cable box and surround sound. I'm currently using component in and optical to the receiver from cable box and back out from receiver to TV. Sometimes the audio and video are not in sync. I want to use HDMI to get the best picture quality. If I use HDMI from cable box directly to receiver, do I still need to have component connections from receiver to tv? I have I want to use HDMI from cable to TV, since I can't connect this way through the receiver. What is the best way to then connect audio? Very confusing! Any suggestions?
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If I am understanding you correctly it sounds like you should be able to run an HDMI from the cable box straight to the DLP TV. That should carry an HD signal as well as a digital sound signal to your TV.
Now, the second part of the puzzle would lead to connecting your TV to your receiver so that it carries the sound signal over. Again, if using optical there may be a lag time since optical consists of light pulses so the signal may get to the source ahead of the HDMI signal. If not then I would suggest running a component cable from the TV to the receiver. Since component consits of electrical pulses I would suggest purchasing a jacket for the cable in order to reduce the amount of "noise" picked up by the electrical pulses. What other types of inputs does the receiver have that the TV can output to?
As far as the HDMI cable goes....there are a variety of them and most consumers may not understand the differences. For example, at the end of the cable, is there a strain relief spring installed? This helps with the sauder points and delivery of a true signal. I have, and continue to use, Accell cables. They have by far the best, for their price point, cables on the market. I hope I have helped.
 
M

MDS

Audioholic Spartan
There is no time lag due to optical vs electrical. Problems with lip sync where the video appears to be lagging the audio is because of the video processing - the audio arrives instantly while the video can take several hundred milliseconds to process.
 
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S

skartzsky

Audiophyte
Thanks

I did not know that MDS. I appreciate the educational tip. Cheers bud!
 
T

tsfdirect

Audiophyte
Thanks!

Thanks to you both...I connected the Motorola to the TV via HDMI and left the other connections in place. This way, if I want to bypass the receiver (for my wife!) then it is not a problem. I'm thinking about returning the receiver for the new Yamaha 2600 with HDMI connections. Otherwise, everything works great. I had to play with the audio delay on the receiver to adjust it and it is totally in sync now. I love home theater! Thanks.
 
G

G-force

Enthusiast
skartzsky said:
If I am understanding you correctly it sounds like you should be able to run an HDMI from the cable box straight to the DLP TV. That should carry an HD signal as well as a digital sound signal to your TV.
Now, the second part of the puzzle would lead to connecting your TV to your receiver so that it carries the sound signal over. Again, if using optical there may be a lag time since optical consists of light pulses so the signal may get to the source ahead of the HDMI signal. If not then I would suggest running a component cable from the TV to the receiver.
Cant you just run the optical out on the cable box to the receiver directly? Why would you need to run it back through the TV and then to the receiver?

Right now I have component cables from cable box to TV and optical from cable box to receiver and it seems to work. Are there benefits to running audio from cable to TV, and then to receiver?
 
T

tedmjr2

Junior Audioholic
If you're not using a universal remote, then the benefit I see by connecting the cable box digital audio to TV and then from TV to AVR is that you can control and view the level of volume "on screen" while using the cable box remote. I would recommend this connection only if your TV has digital audio input/output connections (either optical or coax).

For those who aren't using a unversal remote, it's likely that the AVR remote is being used for volume and the cable box remote for changing channels and other cable options (e.g., DVR, PPV, etc). I am set up this way because my TV doesn't have digital audio input/outputs.
 
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R

ronniescott

Audiophyte
Non HDMI TV to HDMI receiver

OK Guy's,
I bought a Yamaha RX-V661 receiver and am hooking it up to Toshiba HDTV that I've had for a few years. I'm using DIRECTV as my HD provider.
Th TV does not have HDMI connections but, the HD Box and the new receiver do.
I tried to go from the TV w/ component to the receiver (using the monitor) and HDMI from the HD box up to the reciever.
Needless to say no picture but I have audio.
What am I doing wrong?
 
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j_garcia

j_garcia

Audioholic Jedi
Th TV does not have HDMI connections but, the HD Box and the new receiver do.
I tried to go from the TV w/ component to the receiver (using the monitor) and HDMI from the HD box up to the reciever.
Needless to say no picture but I have audio.
What am I doing wrong?

I don't think I've seen any receiver that will "downconvert" or transcode from HDMI to component (digital to analog). So looks like your next purchase will be a TV.
 
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