Question about Stanton ST-150 Turntable

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Stantonst.150 turntable platter spins unevenly

When watching my stantonst.150 turntable platter spin the platter spins unevenly in relation to the level plinth surface though it seems tobe seated properly in the spindle bearing and there is no noticable effect to the sound coming out my stereo speakers.........

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  • 432 Answers

Well, you have the rotor, which has above the conus where you put your platter on. But the rotor needs to be kept in space, so it can spin,
which offcourse in the is done by (too soft) bearings, but the bottom of the the rotor(which looks the same as the 'pin' where you put you vinyl on, just leans on a piece of metal, instead of a technics where it falls in a shaft too keep it is place.
You undestnd that the strength on the bearings of a st150 is much higher, especially when scratching. Besides that, the high torque works 0,2 sec and then an optocoupler samples the speed of the rotor. And it's easy:on the underside of the rotor ,there's a plastic round disc puled over the rotor and kept on his place by a plate and 3 screws, with on the outside just

Posted on Mar 31, 2014

  • jason heatley
    jason heatley Apr 01, 2014

    THE ANSWER to the problem to my Turntable was cut off at JUST....

  • Audio Service Clinic Nov 27, 2014

    What Richard is trying to say, simply put, is that the spindle bearing that the platter is sitting on, is either loose or worn out. Thanks to Richard for his input, which is correct, even if it's not worded correctly. :-)

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STYLUSCITY
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SOURCE: Hi,My platter on my Stanton T.120 will no longer

lift the platter and check the belt is on correctly. styluscity@gmail.com

Posted on Sep 01, 2011

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That is a lack of maintenainance, but your real problem is that your

voltage regulator from -24 en 24v gets to hot, since the stanton has crappy everything, where cheap build and often the components aint screw against the cooling block, so first check that and well , there about 60 crappy su\'scon caps that needs replacement. It\'s a tt from hell with the useless weight. Your system started spinning hard, cause the thermal protection started to work. Overheating, since most peoples set the start and stop torque set at the highest point, and with the small cooling blocks you get a problem and by pressing the platter, you ask for more current and that was just too much, if your bearings were that bad you assume , you have heart a lot more noice.

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This picture is from the manual for a DP-29F, a similar belt-drive turntable:

pgh_pa_guy_19.jpg

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.

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This turntable is a belt driven type. The belt wraps around the underside of the platter and the drive motor spindle. If the belt has slipped off, broken or is so old that it is slipping - the platter will not turn. Usually you can remove the rubber cover on the top of the platter to use access openings beneath to put the belt back on.

The turntable product brochure, owner's manual and related info is available from Pioneer, here.

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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!.

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Hello DeKay,

I just had a spindle lock issue this past Sunday at my gig. I had the turntables out in my car and brought them in. I let then warm up for 2hrs before plugging them in.

Everything was good. Then mid set my right side turntable started spinning really fast and then DEAD STOP.

I was pushing the platter and it really hard to turn. I took off the platter and tried to turn it with my hand. It was dead locked, WTF?!!

So I limped through with one turntables since I use Traktor Scratch Pro and made it through the whole night successfully.

I searched the net and it was suggested to lubricate the 1200 spindle with 15W40 motor oil. Since the motor design is indentical, I picked up some 10W40 motor oil since I couldn't find 15W40.

I oiled both turntables to be on the safe since. I tapped the spindle on the locked turntable to help loosen it.

I drove back home which is pretty much an hour drive and let the tables sit for another 2 hrs.

I decided to grab a thick towel and vice grips to work on the locked spindle.

Clamping down on the towel with the vice grips on the brass fitting for the platter I was able to free the spindle quite easily.

I was then able to turn it by hands so I did in both forward and reverse directions to work the oil down into the spindle bearings.

I put the platter back on and spun it manually to check for resistance, it was spinning nicely!

Plugged in the turntable, set the pitch at 0 and watched the stobe dots. There was no waver in the strobe dots. YAAAAAAAY!

My turntable is back to new and since I only use them on the road they stay stored most of the time.

So I would suggest just oiling the spindles every so often to keep them tip top.

Hope this helps you!

Peace,
DJ Quartz

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1 Answer

Platter not spinning properly


Make sure the platter is seated correctly. Lift it off, and set it back down. Also check to see that there is no debris or foreign matter stuck underneath the platter or where the platter sits.

Check to make sure the platter itself is not bent or warped. Do this by removing the platter (lift up), and then put it on a flat table/surface. Look at it from the side. Is it warped?

Hope this helps

- Davis
DJ Pro Audio
www.djproaudio.com
www.repairnyc.com

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