20 Most Recent Samsung HT-AS720ST Theater System Questions & Answers

After trying several ways, we decided the best picture was to run the blue ray (out) directly to the TV (in) with an HDMI and another HDMI from the sat. box(out) to TV(in), then optical audio from TV (out) to receiver (in). This way you don't have to change channels on the reciever when switching from TV to DVD. Remember that HDMI is one cable that supports audio and video. If you are using all Samsung products and want to use one remote, using the Anynet feature, I think it has to be connected with an HDMI. I'm going to try connecting an HDMI too from the reciever to the TV to see if this feature will work. It does with the Blue Ray.

Make sure the wiring is making clean connections between the speakers and the unit.

our started cracking and popping this morning. It seems from all the posts that it is always the right front speaker. With that kind of trend it can be traced back to mfg. Is there a recall, are they covering the cost?

I have the same problem. HDMI connection and the sound just stops. Very frustrating

Disconnect all wires to the receiver and speakers and connect them back again. The receiver should be on a surround or 5.1 mode

Hissing is cused by noise interference which is usually bad cableing or bad reception of the station or device if wireless then check out your hosehold appliances and start shutting them off one at a time and see if that clears it up. Somethng is tagging along for the ride on the same freq or close to the freq if wireless

http://www.retrevo.com/support/Samsung-HT-AS720-Home-Theater-Systems-manual/id/6333ci454/t/2/
Page 10 discusses speaker connection.

Disconnect everything but the speakers and evaluate the buzz. It may be coming from external hardware or loosely connected analog cables.

Sometime juts rotating the ac plug on one device eliminates the ground loop buzz.

Do you have any multichannel digital inputs connected?

http://www.retrevo.com/support/Samsung-HT-AS720-Home-Theater-Systems-manual/id/6333ci454/t/2/

I had this same issue about a year after I bought the product. Sent it back under warranty and about a year later, I have the exact same issue again. Never buying samsung receivers again.

IF it is out of warranty, you can open it up and look for loose connectors on the boards. It may be a poor connection that is visible. Otherwise it may be a connection problem that is hidden/internal. Bad solder connection on the board/speaker tabs, etc.