Ok, so I swapped RCAs and it didn't help... I pulled the amp to see if I could find a bad solder, the problem is I can't get to the underside of the board because of all the damn clips holding it to the heatsink! Anyone know how to remove the clips??? It almost seems like you need a special tool that would allow you to lift all the clips at the same time and then slide the board out the side...
The RCA input with the yellow circle is the one I'm having trouble with. I figured that the amp is already bad, so I can't make it any worse...
Thanks.