Hi, I just happened to find your video and thought may be you can help me a bit I have an H3000 upgraded to H3500 by my self. It worked ok years ago and I kept it for a couple of years without use. Today it is not working. I have no input on the meter and no output sound, but turns on ok and can load all effects as well. Do you have a clue where can I start looking? I thought to apply deoxit but seems to not be recommended. I am afraid I cannot bring it to you for checking since I live in Chile Cheers