Blinking red light

Check

http://www.fixya.com/support/t2763934-philips_dvp642_dvd_player_blinking_red

Problem is solved there!

Its a capacitor problem that is easily solved by a do-it-yourselfer. Google dvp642 and c316 (location of the cap on the board). A simple inspection will tell you if its bad and you can replace the cap out of Radio Shack for a couple bucks. Im doing it to a player right now...I have the bad capacitor out and just need the replacement. The bad cap will be bulged up on the top. It looks like a black barrel w/ an aluminum top. Its located on the main board that the power cable is attached to. You will find forums which describe the repair and replacement part in detail. Good luck!

iz found in my dealings the majority of these problems were either caused by the power supply printed circuit board, or in lesser extents the main printed circuit board. check the capacitance of the capacitors on the power supply. good luck.