Sony RCD-W500C 5-Disc CD Recorder "bass treble control" Questions

...treble/bass) control to better the sound?? I see a Scratch compensator switch, but are there other switches/knobs to better the sound?? thanks! I am not sure but I think there are two switches on the ...

...bass, treble, etc., levels on my RCD-W500C cd recorder. I lost my manual and am not sure how to reset to default levels. How do I do this? CD recorders have no tone controls. Volume only. The whole ...