No sound or level with Hi-Z on
I have been useing the V-studio 100 7 months with no problems how ever a couple of days ago it started to act strange. The basic problem is I no longer get sound or any channel 1 level when the Hi-Z for input one is on and a guitar is plugged in. I am able to plug in an xlr mic cable and get sound with or without the Hi-Z on so the problem seems to be with the line in plug. When this all started to happen I was getting a really bad phasing sound when the guitar was not plugged in and the Hi-Z was on. Now the phazing ins gone and no sound at all. I tried plugging into the line in on input 2 and get no sound or level either. I assume something happened to the line in plugs but have no idea what. Anyone have any ideas or suggestions?
Thanks in advance if anyone can help