Oppo/Modwright 105 no sound

I have a 6 year old Oppo/Modwright 105 player (tube output version with PS 9.9 power supply) that I use only for two channel audio and it has been working great until a few days ago when I noticed that a cd was not read correctly, then upon ejecting and trying again it read the disc and when I hit play, I had sound and then it started to sound muffled and then no sound, but the disc was still spinning and counting down the time. I ejected that disc, tried an sacd, same issue and then another cd and this time it read the disc but would not start when I hit play. I have checked all outputs, nothing was touched at all the player just stopped having any audible sound. I have written to both Oppo and Modwright to see what they suggest or say. Any help or suggestions would be welcome.