Qwiklap

I have a set of trusty V2-400s from back in the day. I am now just using them for 2.1 sound -- but they work great and I would prefer not to replace them. I my left channel was did (sub and right working great). Through troubleshooting, I have determined that some connections inside the control pod are loose. I can intermittently get both channels working by putting pressure on the wires going into the back of the control pod, and sometimes just by turning the volume knob up or down. Din plug and amp in the sub seem fine. Does anyone have a writeup or description of how to repair these pods? It seems that it probably just needs some connections resoldered. Can anyone help? Thanks, Q