This is brand new, right out of the box. I followed the instructions, plugged it in and it played for a few minutes and now the platter will not spin at all. I can feel the spindle trying to turn, but it's almost like it is stuck. I really do not want to have to return this...

Check the simple stuff first. Look at the LP you are playing for scratches. Even a light scratch can affect the player. Check the turntable platter and spindle to see if they are clean and set up correctly. The smallest bit of dirt can affect the turntable. Try this.
Check the playing needle is clean as a small piece of 'fluff' can cause drag as the record plays.
Remove the felt cover on the turntable then remove the platter the records sit on. It should pull up and off. Over time the platter settles in place so it might not want to come off easily. You might need a helper to push down on the spindle and turntable body to stop it lifting as you pull up on the platter. It might let go suddenly so be careful.
Inspect the platter on the top, edge and underside for dirt or anything that was trapped. Don't forget to check the hole as well.
Next check the area where the platter sits to make sure that it is also clean.
Finally check the drive spindle itself. Make sure the spindle is clean. Position yourself with the spindle at eye level and turn on the turntable to get the spindle turning, (try 45 rpm).
Watch the spindle to see if it wobbles as it spins. The spindle should spin with almost no wobble.
Refit the platter. Again go to eye level and spin the turntable. This will check the platter is fitted as level as possible.
If this doesn't sort out the issue you might need to get a specialist repairer to check that the parts inside the turntable aren't the cause of the problem.

Noma can include several different brands
Information appears on following links:
http://waterheatertimer.org/How-to-set-timers.html
http://waterheatertimer.org/Woods-timers-and-manuals.html

so your fuse ain't burned , but the platter won't spin. I have here the service manual elektrotanya com , but it ain't a beginners job,
and you need the right gear. It has quite a lot ic's and a driver-ic
, but don't spend to much money in it. The service manual is good to understand and if you follow it, you might see probably somewhere a broken capacitor, which is easy to replace, but later they ask for an oscilloscope and I don't think you have one.
So then you have to call a real technics expert and those are few.
Good luck

probably defective, but need model number to delve deeper.

Hi guys, I have this exact problem. If I manually rotate the platter and engage auto return, it spins perfectly. Then when I try to play a record it fails. This lasts from minutes to hours, then fixes itself. Did anyone ever diagnose/fix this problem?

I don't know the answer, but you have written one of the finest, most comprehensive problem descriptions I have come across. In mechanical scenarios, that is priceless. I'm sure a turntable guru will see it and go, "aw. I know what that is". Good Luck.

http://www.vinylengine.com/library/jvc/jl-a20.shtml
Looks like this is a belt drive model.

http://www.turntablebasics.com/belts/jvc.html
This site claims to provide installation instructions with belt purchase. Good Luck.

some tables require the tonearm to be over the record area before the patter starts to spin. If thats not it, have you tried "jump starting" the platter with your finger? the direct drive "stepper" motor might be confused as to where it is at the moment. and finally remove power from the wall for a few minutes then retry.

Sounds like the motor drive controller might be malfunctioning. An authorized Denon service center would have to take a look at it to make sure.

Lift up the platter underneath should be a belt (black rubberband) on the platter. Once you find it leave it there put the platter back on, pad off. With the player off put the belt over the brass motor spindle.