Anyway to use the DAC in an integrated cd player with an outboard transport?

Icherepkai

Yes- if the Raysonic 228 has a digital input as jond suggests.

Happy Listening!

So, if the player has an input for use with an outboard DAC, then the onboard DAC can be used with another transport?  Is that what you're saying?  And if yes, how?  Thanks

If the player has a digital input, purchase a stand-alone transport like the Cambridge CXC and a digital cable - plug the output of the transport to the digital input of the CD player and it should work. That’s it. BTW, CXC transports are available on Ebay from the manufacturer for $350 or so. I have one and it’s fine for the money. People also seem to like the Audiolab transport for about $550. As far as the digital cable goes, I would say just pick up something from Audioquest for $50-$100 and you’ll be fine. And you do need a digital cable, not a regular interconnect, so I’m told. You do have a choice between coaxial and toslink though. I use the coax, but opinions may differ. 

I've also had good experiences with two CXC units...everything I read says the V1 and V2 are sonically identical

Won’t play a disc to the end sounds to me like it certainly could be a problem with the transport, not with the DAC section of the unit. Are you sure of the diagnosis?