Sound is too low on dvd player cant hear

HI
not sure if this is the place to post this but big problem i have a phillips lx 3000d dvd player when i play the disc the audio is to low too hear its a surround unit player does this mean i need the speaker ???

need more info to help but I will try and help anyway.
How is it hooked up?
straight to the TV using RCA cables?
Use the DVD player remote and select menu or settings not sure what on your remote. Then select sound or speakers not sure.
Now choose the selection that is needed for how it hooked up to TV.
My CIMA DVD player has selection for small, medium and large speakers and if you not select the correct size then you have no sound or it not loud enough.
I hope this helps and you can figure it out