Just recently purchased a G-9700 for cheap. Long story short, I was in a massive rush and the price was so low that I didn't even care if it worked. I brought the unit home and was getting intermittent output while turning the balance knob, so took the bottom off cleaned and greased the knobs I could easily get to. HERE IS THE PROBLEM. I only can get an output on the right channel. No matter what knob I turn, button I push, or input I select the left channel will not work. Good part is the right channel sounds and functions perfectly after a little cleaning. Any stereo Guru's out there that wanna give me advice and help me learn? Side note----I am relatively familiar with a multi-meter and soldiering, but that is it. I do not know very technical terms. I have collected, bought, and sold receivers for about 8 years but it has slowed down since being in college and working.