My DvD player shows No

I had this same problem with my Apex AD-500W DVD Player. I decided since everyone said the player basically needed to be replaced it wouldn't hurt to go through the buttons on the remote just to try and figure it out......I DID!!!! I turned on my DVD Player, inserted a disc, turned on my tv and then hit the SYSTEM Button right below the power button until the screen said MULTI and the machine started working perfectly. There are 3 settings in that button, PAL which made my screen go crazy, NTSC ( i have no clue) and MULTI(this one made it work)! Hope it also works for all of you!!!