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

I know it's usually the other way around; many cd players have inputs to allow an outboard DAC to be used with the cd player's transport but I have a great player in the Raysonic 228 and the shop said the transport is fine but the cdp sometimes won't play a disc to the end so what to do?  Also had a Consonance Droplet 5.0 that I was very fond of and replaced the optics only to have it develop issues with skipping ahead (it would hang up if you skipped ahead a few tracks or more).   Anyone know a way to make this happen---using the DAC in the cdp?