Anyone here have a good source (free if possible) for a service manual for a Denon RCD-M37 CD receiver I would like to fix. I know at least one of you has audio industry experience. I suspect it's sustained some abuse. It won't come out of standby, protection relay clicks when I supply mains power and LED goes red. Press power button, LED flashes green a few times with further relay click, then LED changes to solid red with no further response when power button pressed.
Many thanks if you are able to help.