Is HDMI bidirectional?

 

New member
Username: Lovehitech

Post Number: 1
Registered: Jul-06
I'm hooking up a new HDTV and home theater with cable box. The Panasonic home theater SC-HT740 has only RCA left and right jacks, and an HDMI jack labeled "output." It has no coaxial or optical inputs. So am I correct that there is no way to send 5.1 channel sound into the home theater unit? Or is the HDMI bidirectional, so I can feed 5.1 sound into that jack? The manual and Panasonic Help Line say just hook up the RCA jacks.
 

Gold Member
Username: John_s

Columbus, Ohio US

Post Number: 1039
Registered: Feb-04
So am I correct that there is no way to send 5.1 channel sound into the home theater unit? Or is the HDMI bidirectional, so I can feed 5.1 sound into that jack?

Yes, and no.
 

New member
Username: Lovehitech

Post Number: 2
Registered: Jul-06
Thanks for your reply, which confirms my findings from more investigation today. I hadn't understood that there's a difference between Dolby Digital 5.1, which requires digital input, and the more elementary Pro Logic, which I now realize is all this system can do. I also learned that the unit has the HDMI output because that's necessary to take full advantage of the upconversion DVD player video it has.
 

Gold Member
Username: John_s

Columbus, Ohio US

Post Number: 1041
Registered: Feb-04
Exactly. A little research before purchasing is a good thing.

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