how can i fix my output connectors that have loosened on technics SL-PG5?

it appears that the output connectors on the back of my technics SL-PG5 cd player have become faulty im presuming loosened its definately not the audio lead which is high quality or amp as ive tested this its the CD player you have to wedge the lead in so the connectors are pushed in tight its effecting the sound you have to wiggle and push the leads in and up.how can i fix?