Ive googled and searched valvetronix.net, can't find an image of the input board. Anybody know where I can look? I attempted to re-soldier some cold joints, and a tiny braided jumper sprang back, and I can't determine where one end goes? If I could see an image of the soldier side of another board, I think I could figure out where it goes. Right now, speaker works fine, but headphone doesn't work, nor does it defeat the speaker.