Connect with componet cables.
The only digital audio input for this TV will be via the HDMI input. Of course, even with HDMI in, you're only going to get a simple stereo output from the TV. You can use the analog L & R audio inputs for a very similar sound from the TV speakers.
The digital multi-channel audio (Dolby Digital, THX, 5.1, 7.1, etc) encoded in the program should be connected to a suitable multi-channel amplifier with either a TOSLINK (optical), RF (coaxial) or HDMI cable for theatre-like sound. This can be done by (a) cabling from the source (DVD, BluRay Disk, Set Top TV Tuner, etc.) directly to a multi-channel amp and speakers, or (b) from the HDMI output of these devices (DVD, BluRay Disk, Set Top TV Tuner, etc.) into one or both of the TV's HDMI inputs. This will provide only stereo sound output from the TV speakers. You should connect the TV's TOSLINK optical "Digital Output" jack with an optical cable to the amplifier's TOSLINK optical input jack to obtain theatre sound.
To listen to the program shown, you would select the amplifier input assciated with the optical, RF or HDMI input that is connected to the source (DVD, BluRay Disk, Set Top TV Tuner, etc.) if connected directly. If the TV HDMI input(s) are used, they are output to the TV optical output and should be connected to the amplifier optical input. The amp input associated with the optical input should be selected to hear the program with theatre-like sound.
Same problem on Samsung LN32A330. So far Best Buy told me to forget help, and Samsung says it's my cable companies issue. Even though no other TV in the house has the problem. I'm very disappointed in both Best Buy & Samsung!!
my model is a ln26a450 using comcast digital cable, robo sound only on hd channels
Exactly the same problem with my new LN37A450, and just on the Comcast off-air converted digital channels (4-1, 5-1, etc). I'm wired directly to the cable -- no set top box of any kind. Anyone come up with a solution?
On my new Samsung LCD (don't have model # with me). I get sporadic garbled audio on digital channels (**.1) on Comcast Cable. It will do this until I change channel or will eventually resync and could be fine for quite a while. Of course everyone says it's the other guys fault
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