I acquired a 5500 system in order to get the speakers that were part of the system. I have been going through the pieces to get them working right and clean them up. Currently, the CD 5500 has no left channel. When I use the 5 pin DIN cord or a DIN to RCA there is no left channel. The left RCA jack on the back of the CD player was loose and when I tried to pull the RCA cord out the jack ripped out of the PCB. I am sourcing some new ones but it would seem that only two of the four prongs on the RCA jack (the center ring and the outer ring) need to be attached to the PCB so I don’t believe that is the issue. Does anyone have any other suggestions of where I might look to revive that left channel?