Hook it up to your pc with the serial cable, leave power disconnected.
Fire up Hyperterminal 115200/8/N/1/none direct to the COM port you connected the player. Make sure it is connected, look for a running clock in the bottom left part of the screen.
Apply power and see what's happening. Post this information to this thread so everybody can take a look at it!

Edwin de Vaan
mk2 rev.7 Trillian # 080000263 6+20Gb blue/red