2004 Venture DVD System dead

I'm on a quest to try and repair all of the little nagging problems that have popped up in the past year :headshake , So Im going to throw this one out there.

My DVD entertainment system quit working, the radio still works fine, but when the LCD screen is flipped down its dead, as if there is no power. If I insert or eject a dvd, it takes it in and out but nothing happens. Ive checked fuses and they are good. Is there something I should focus on checking first, before I start disassembling everything to troubleshoot.

Does anyone have a link to a wiring diagram?


Thanks

Dont think there will be much on the DVD system, it is pretty much a verify power to unit/ replace item.