Sounds like that entire component's basically dead. IF you're very handy, knowledgeable (or curious enough to learn) and have the time for it, you might try repairing it yourself. Otherwise, probably time to just move on and replace the whole thing.
Those speakers are probably not really...
Welcome to HTF, Michael.
When you say that BD player part "has died", what exactly do you mean by that? Does the entire unit not turn on at all? Have you tried it w/ the digital audio input(s) fed from some other source device (like another standalone BD player... or even your TV's own...