Sony Playstation2, Model: SCPH-5001, Serial No. FU6398319. The tray( on which disc is placed ) comes out only 1.75" and then goes back when attempt is made to eject the disc electrically. To try manually, the power was switched off, the cover was removed and the disc was retrieved but the tray does not come out more than what comes out on attempting to eject electrically. Kindly advise how to fix.