Hiya…Here for some help with one quiet output on a Sharp DX200 CD player

Hi everybody. I’m here cuz I just bought a cd player, Sharp DX 200, for 5 bucks and one output is really quiet. Everything else seems to work. I’ve tested and ruled out the other components of my system and am certain that the fault is with the player itself. I have another cd player that works fine when hooked up. I resoldered the output Jack, then I replaced it. No change. The left output is good. The right is barely audible. I can’t find the schematics, and even if I had them, I’m not that great at reading them. I suspect it might be a simple repair. I already have a working cd player but want to do this as a fun/learning project. Looking for some help. Thanks in advance!