When following this forum, with my cabinet, first thing I did was turn the balance knob. Sharp crackling noises came from my right (working) channel. Alarmed, I turned off the record player, adjusted full right, places in between, and full left. Each time turning the player back on to check for effect. Full left results in a wonderful sound from my right channel and dead silence from the left channel. Any slight on the knob makes the right crackle. Just past half way to the right of the balance knob, the crackling moves to the left channel and the right channel begins to dim..