You can't simply input the PC sound to any AV audio input on your TV. You must find the proper sound input jack that go together with the VGA input. I don't know about sharp, but try looking for something that says "PC Audio input" or something similiar that's probably close to the VGA port on the PC.

It will most likely be one of those 3.5mm audio input.

From the picture you posted make sure you have chosen the Input7 option (If using VGA cable + PC Audio).

If still no sound, check on your Laptop side if any problems. Connect the audio cable from laptop to some PC speakers or headphone first to check if got sound.

This post has been edited by Ngto: Feb 5 2011, 09:53 AM