hello everyone, i have a fisher rs-1052 reciever. it sounds quite amazing in comparison to my old jvc r-2x. the problem with the reciever is the right channel would sometimes cut out and lower in volume in comparison to the left channel. oddly enough, if you were to hit the top of the reciever .. POP its back. didnt worry about it because it happened not too often. fast forward 3 months i remember opening up this reciever and seeing many blown caps. so, i replaced all of the caps. the left channel works fine as always(and what a sound improvement),but the problem with the right channel got worse... a lot worse. its always at that very low volume, almost cant hear it when the volume is at max.. so, i hit the top of it again and no luck, lol. so i took the cover off and started tapping boards with the handle of a screwdriver to see if anything changed, and the board with the heat syncs seems to be where my issue is.. if i lightly tap anywhere on the board it comes back right away. i am confused past my knowledge. could it be a cold solder joint from when i replaced the caps? an old solder joint among the ones i didnt touch? loose connection(thats whag im thinking)? i am stuck. anyones help is greatly appreciated. thank you.