Sounds like a blown fuse on the continuous power or ignition wires. Or perhaps some other wiring problem with the sled. Or perhaps both: for example, you had the ignition and permanent power wires reversed but thought it was OK because it sort of worked for a while, then the fuse blew and now it's completely tango uniform.

FAQ entry 1.
FAQ entry 2.
FAQ entry 3.

Do both players work on the AC adapter?