Question about Sharp LC52SB55U LCD TV

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No surround sound when attaching hdmi to TV

Recently bought a 52" Sharp
LC52SB55U.I run an optical cable from my cable box to my home theater, and an hdmi cable from my cable box to my tv. With my Philips tv, this worked fine. With the Sharp, I get surround sound while the optical cable is connected to the home theater, and the hdmi is unplugged. When I plug the hdmi cord into the cable box while it is detached from the tv, I still get surround sound. The second I plug the hdmi cord into the tv, I lose surround sound. Any ideas? I'm stumped.

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  • brockhuffake May 10, 2009

    I want to run all my media to the TV and then just have the optical (toslink) cable give surround sound to my old receiver that does not support video. I'm curious if the lc52sb55u is able to take the 5.1 from HDMI and pass it out the optical out? I think this may be the issue. Does anyone know if the TV just doesn't support this or if I need to turn something on or off?

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  • 62 Answers

Try running the optical TOSLINK cable from the TV to the receiver. If the TV doen't have a digital optical output, then try going into the menu on your cable box and setting the audio output to the digital optical out. Also check your TV menu and make sure NETCOMMAND is diabled. Some of your newer HDTV have Netcommand that allows the TV to control other devices through the HDMI cable.

Posted on Jan 10, 2009

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