Does it have problems spinning up the disc, so that the disc will start very slowly, like if it didn't have enough power to spin?
If so, the problem might be oxydized brushes and commutator in the spindle motor.
One way is to replace the spindle motor, another way is to clean it (which is not very simple, but it's also not impossible, so if you think you need to clean it and you want info on that, just post me some feedback, i can explain the procedure).
Another thing to check is the door closed switch (you might want to do it prior to dismantling and cleaning the motor, it should be somewhat easier). If the door switch doesn't get activated or if it doesn't work properly, the CD will not start spinning at all.
If the door switch does not get activated when you close the door, then some part of the door that activates the switch might be bent, broken or otherwise damaged, and if the switch does get activated but doesn't seem to make a proper contact, then either the switch has oxydized contacts or it is damaged and needs to be cleaned or replaced respectively.
You can check the switch with a resistance measuring function on a multimeter - it should show just about zero ohms, a few tenths of an ohm maybe when the switch is activated, meaning that the switch is good.
You can also check it with a continuity (diode) test function on the multimeter - it should show about zero millivolts, maybe a millivolt or two voltage drop or give a sound alarm when the switch is activated, again meaning that the switch is good.
Other causes may include problems with electronic motor controller IC (chip), problems with power supply, bad connector contacts or bad solder contacts, just to name a few.
I hope this helps somehow.
RCA RS2650 Shelf...
on Jan 08, 2013