Marantz 2220 B problem with L side stereo channel
I bought my current 2220 B about a year ago, and it was working perfectly. Recently, I've had a problem with the left stereo channel cutting off, but it is intermittent. When I turn on the stereo, the left channel works fine, but will cut off after 10 minutes or so. When I switch to mono, the left channel works. I'm on here to see if there's an easy fix to the problem- I have experience soldiering onto a circuit board, so I feel like I could do the repair if given a little guidance. Thanks!