Hello all. having a problem with my Luxman TP-117. Just pulled this out to try with a M113 using JBL 4312c's and a Strata III subwoofer. After running perfectly for a few weeks the source is now locked into CD and cannot be changed either manually or via the remote. Checked monitor buttons, no change. Remote will change tuner presets but not source or power. This had happened before both to myself and to a coulple of friends who had the same problem and I remember it as a simple fix but not what I did to rectify the problem. Thanks for your help.