Dual 1228 turntable platter not spinning, the motor will not turn
How can I get my dual model 1228 turntable paltter to spin, it will not, the motor is not spinning, but I can tell it is on?. It could be lubricating issue, or is it something like a motor starter, if it as one?. Please let me know. Thank you.
Re: Dual 1228 turntable platter not spinning, the motor...
If the motor is not spinnig then it is probably seized. These motors are very robust and rarely need replacement parts. Remove both the top and bottom bearings, clean shaft and bearings with solvent and then fill bearings with light machine oil. The bearings have a sponge inside which will soak up lots of oil for years of trouble free use. Once reassembled, tap the bottom bearing while the motor is spinnig and the bearings will centre themselves. If the idler and it's mechanism is working ok as well then you should feel lots of torque from the from the platter when it is spinning.
Re: Dual 1228 turntable platter not spinning, the motor...
Have a 1212 with the similar problem, there are 2 bearings that should be lubricated on the top and bottom of the motor, also your idler wheel may be glazed or dirty. Get a simple emery board ( nail file) use the fine side, clean up all filings, then clean with rubbing alcohol, or rubber wheel cleaner. Be sure not to touch surfaces, also clean platter where idler touches. I did mine while it was running to avoid getting flat spots on the idler. I was surprised, it worked!. email me if you have any other problems, am going to rebuild a 1228 today (firstname.lastname@example.org)
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Jun 3, 2010 - 15 posts - 3 authors
It powers up, lights come on but the platter won't spin. ... However when I press "start", nothing happens and the platter won't spin when ... the arm towards the record without pressing the "start" button. ... SL 7, SL-10... and / or any of the fully automatic Technics turntables using optical record detection......etc
Marantz 6300 question...
Nov 21, 2009 Dual CS505 turntable won't auto-start
Aug 16, 2009 More results from www.vinylengine.com
Your turntable belt is off. Remove the c-clip holding the platter to the center spindle. Remove the platter and turn it bottom side up, place the rubber belt around the platter and fix it to the little post sticking up on the outer-edge surface. The little post holds the belt to the platter while you turn the platter over and put it on so that the post points right over the motor pulley. Turn the platter by hand either clockwise or counter-CW and the belt will pop off of the post and land on the motor pulley. One drop of oil on the center spindle for lube and fasten the e-clip back on. Of course, the tone arm might not be actuating the power switch, you can address that with the platter off as well. Good Luck.
If you can turn the platter easily by hand, then so should the motor. You can also disconect the power leads to the motor and hook up a PP9 9 volt battery to it. If it\'s slow and easily stopped from rotating then there\'s nothing wrong with the power to the motor and the motor is bad!
This picture is from the manual for a DP-29F, a similar belt-drive turntable:
The view is through the rectangular hole in the platter you see with the turntable mat removed. This picture is from the setup section for a new turntable, so the ribbon tape won't be on your belt. But it shows how the belt should go around the drive roller (it's the shaft of the drive motor underneath). Other than the routing of the belt over the roller, there's nothing else to connect. If the belt is working correctly (hasn't stretched so it's too loose), the roller drives the belt which in turn spins the platter. If your turntable isn't turning, either the belt is too loose to transmit the motion, the drive motor isn't spinning, or something is binding and preventing the platter from turning.
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.
There are two motors with beige/tan plastic covers over them, one on turn table platter and the other on the record changer mechanism table. Take the cover off the one on the turntable and spin the motor by hand. Depending on how you spin it the arm will either go back up or down
The drive belt has come off. Open the lid. Remove the rubber mat on the platter. Remove the C-shaped clip from the center of the turntable. Lift the platter up and off. Find the flat rubber band that connects platter and the motor. Plug it in and verify that the motor turns when you press power, then standby, then phono.If the motor spins, unplug power and place the drive belt on the underside of the platter. This is not easy, but it can be done with patience. Then put the C-clip back on and replace the mat. Congrats!.
Hi dont know the model but normally like so: Take the platter of the turntable, it should just lift of, but there could be a circlip in the middle that needs to come off first. Just lift the mat first.
Place the belt back onto the platter first, should see where it goes, then put the platter back on. There are holes in the paltter which you can then grab the belt and pull it over the motor spindle.