@djchennai > When did this issue start to occur? Is the unit not working AT ALL now? Did you eject the CD? Do you get an error code (e.g. e-XXXX)?
You could try re-flashing the firmware to the unit. To do this, place the unzipped firmware files on the ROOT of a USB stick. Then turn on the power of your CDJ Player while pressing both the "USB" and "RELOOP/EXIT" buttons. (Keep pressing until the “Power ON” indicator on the main display turns off.) When prompted insert the USB stick.