DVD player Yamaha S510

Hi all,

Since I have renewed the power sup. of my dvd player, my display and dvd screen have changed. I also can’t use my optical outlet anymore. I think it has to do with the firmware. Can anyone, please, help me and tell me where I can find it?
I am told that the player is the same as a Philips DVD711, mayby, if the firmware for the yamaha isn’t possible you can tell me where to find that?