I have 2 JBL tower speakers and a Pioneer VSX-305 receiver and I am not getting sound anymore. I hook my iPhone up to receiver or my playstation and I get no sound unless I turn the volume all the way up on my receiver, but I have to put my ear up to the speaker to hear any sound

SOURCE: Intermittent, random, loud popping noises.

you should check the outline ctrl..for a mic...it could produce a noise...if you have your speakers connected to pc...check the position of the plugs and the volumen of mic put in down...

SOURCE: Problem w/ surround sound for Onkyo HT-R430

you are in stereo mode which only uses the two front speakers, hit the surround sound button remote or hit the mode button and cycle through until you get to the Dolby II setting

SOURCE: Philips HTS3455/98 System "NO SOUND" PlZ Help!!

There are two capacitors on the power board that are 470uf/35v. go to Radioshack and buy two catalog #272-1030 470uf/35v radial lead capacitors. if you have soldering wick and a soldering iron, then this will cost you under $3.00. when you remove them, the capacitors have a white strip with a negative sign on it. match this up with the shaded area on the board. put it back together, and it will work, and last a long time. I have this same system, and it wouldn't play any sound. so, I replaced the capacitors. Hope this helps!

SOURCE: hooking up a sony playstation 3 with digital optical cable

Here's one solution, if you have an audio output from your tv, you can go from the audio output on your tv to the audio input on your receiver that way anything that is playing on your tv for example, playstation 3, dvd player etc. Anything playing on your tv will have audio on your onkyo home theater system. The other thing I would try if you want to hook ps3 directly to receiver is go to your connection settings on your ps3 menu and change your connection method to digital optical cable.