No Sound I had Direct TV satellite receiver but i switched to antenna and now i have no sound.when hook the satellite receiver back up i get sound.i checked the menu to make sure sound is on,sap is off.appreciate any help. thanks

Based on your description, it is possible that the power supply is starting to go. Before doing anything, first check to see if it is the TV or the source. Use a few different sources to narrow down the problem. You didn't mention what type of hookup you used from the receiver to the TV. Assuming you are using HDMI, it is possible that the cable is intermittent. Try using a different one. Also try as below.
1. Once the TV is working with sound, what happens if you turn the TV off and then back on, is the sound still there?
2. Use the TV antenna input to see if you can replicate the problem using an antenna. If the problem is indeed the TV, it should do the same with the antenna.

Here's what I would do first. Unplug the satellite receiver and TV from the wall outlet, then plug them both back in and allow them to reboot. Once they have rebooted, see if you have sound. If not, you may have to call the satellite provider for furthur troubleshooting. Also,do you have anything else hooked to your TV with HDMI? (DVD or Blu-Ray player for instance?) Do these work properly? If so, I would assume you have a problem in your satellite receiver. If not, you have a problem in the TV.

Try channel 3 usually on TV, or 4

I have a similar problem with my new 37 inch vizio. Watching on cable and the sounds gets lower and lower until i can hardly hear it. Must switch channels back and forth to restore the sound level of a particular channel. Does anybody have a solution ?

Try calibrating the antenna to the nearest satellite. The DirecTV box has in the installation menu instructions on how to do this. You'll need some tools like a socket wrench to unlock and adjust the antenna. Put in the menu your global position or your city and select the transponder that gives better signal. If all satellites are out of signal, move the dish until you receive at least one.
To calibrate the dish from the ceiling or wherever it's installed, put the TV volume up until you hear the short "BOOP" sound from the dish location. When you get signal, the "BOOP" will turn to a continuous "beep" with a higher pitch when higher the signal you're receiving. After getting the best signal, switch transponders to see if there's another with better signal, after that, lock the antenna and try watching a channel.

I went to the HDTV plasma manual. It stated the only way the digital optical audio output would work (from this TV) was to go to the menu, select audio and turn off the TV speakers. Basically, it had nothing to do with the technics receiver.

Doublecheck your connections. The connection from the dish should be on "Satellite in", NOT "In from antenna." That is the most common mistake that is made.

This may be old news but just in case ...

Typically you need to consider the surround system as the central point for sound distribution (and in newer receivers, the distribution point for video signal as well). So you need to think of your TV and Satellite as sound sources and connect them to the IN side of your surround sound system. From the back of your TV then, look for the Audio OUT (commonly Red for right and White (or black) for Left. Connect these to the IN on the back of the surround system. Likewise for your satellite box. Then make sure you select the appropriate source on the surround system. If the system supports the video signal, you can route that as well. Beware that you'll need some sort of simulation (provided by the Phillips unit) to upconvert stereo to surround ... check the manual online. If you post model numbers for the Phillips and satellite units, we might be able to direct you more specifically (provided we can find manuals online)

I am assuming that you are using a surround sound system?If so on the back of the satellite receiver you will have RCA cables labled yellow ,red,white uuse an rca cable to run from the output on the back of the sat box to an rca input on the surround sound unit.the inputs should be labled on the back of the surround sound unit.once you have the sat box plugged in look for the output on the surround sound (rca cables) run one set of rca cables to the rca cable input of the Tv.on the original tv remote select the tv input that is the cable from the surround sound is plugged in to . make sure the surround sound unit input is selected to the input that the sat box is plugged into.this will give you surround sound from your satellite receiver,repeat with your DVD player plugging the DVD rca cable output to another empty input on the surround sound.to switch between the sat box (satellite TV) to DvD select another input on the surround sound unit.Try to correspond the units you are plugging into the surround sound to the correct name of the component on the back of the surround sound unit to avoid confussion.any questions,Im here to help.If this works rate me FIXYA! if it helps.GOOD LUCK!