There's no sound when I try to record video. is the microphone on it broken? It's brand new

The only remaining possibility is that it's affected by the volume setting in the setup menu. (Menu, setup (wrench icon), volume.) I didn't suggest this at first, because I'm expecting that it is overridden by the 'zoom lever volume' function. If you try this last possibility (but why would it be wrong in the first place???) with no luck, I think you have to return it to the store - in my opinion it must be faulty. I've searched your manual from end to end and there's nothing. In the section "taking motion pictures" it even says specifically that "recording with muted sound is not possible". The only remaining possibility is that it's affected by the volume setting in the setup menu. (Menu, setup (wrench icon), volume.) I didn't suggest this at first, because I'm expecting that it is overridden by the 'zoom lever volume' function. If you try this last possibility (but why would it be wrong in the first place???) with no luck, I think you have to return it to the store - in my opinion it must be faulty. I've searched your manual from end to end and there's nothing. In the section "taking motion pictures" it even says specifically that "recording with muted sound is not possible".

thanks a lot, i'm going to return it thanks a lot, i'm going to return it