I have a Pioneer CLD D704 laserdisc player that will not play laserdiscs but does play CDs. I set this unit to play CDs only about 8 years ago. It did a great job. Now I sold the unit to someone who wants to play laserdiscs. When he tried a laserdisc the unit started fine but shut off after 5 seconds. He took the cover off and saw the discs spin and then stop. The CDs play fine. He cleaned the rubber pad or washer that makes contact with the laserdisc but that did not help. Checking around I got info like the spindle motor might be able to spin the CDs but not the heavier laserdisc. Can the spindle motor be lubricated with a drop of oil? Could something else aside from the spindle motor be causing this problem? Is it worth fixing with this problem?