topfiv3

I have a m5 where I cannot get sound. The unit fires up correctly, I can see it go through all it's modes. But no sound. If I try and test the input by switching to the tuner and strumming - it shows that no signal is coming through. I've tried L & R channels with no luck. Do these often have bad input plugs? Anyone have any sort of experience with this?

I have a problem where my M5 does not see the input coming in from my Guitar. Any help on this?