Question about Stanton ST-150 Turntable

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Stanton ST-150 Turntable need a circuit diagram urgent

Turntable wont start and moves left and right in short movements, need diagram to troubleshoot ... please urgent.

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Did it start after first having played in a warm environment, the powerstage gets easy too hot...especially the njm 7824 and 7924...those are the two voltage reg. next to the 2200uF capacitors.
The 'big once' and since the whole turntable is build with 3 cent suscon capacitors, i would first look if none of them stands bold.
Yu don't need a diagram, it's powerstage is easy to follow.
I bought two and replaced everything in the powerstage....and
,every suscon cap...The whole unit is a rip off, with pcb's (besides the pcb off the motherboard 2012+ model) looks nice,
but on the inside it's a engineers nightmare(i have a masterdegree micro=ectronics)... If you have to solder, do it very carefully, cause before you know it you remove a copperpoint, , But the whole unit is very easy to de-assemble. I would first lok for broken caps, then the ic's, And since the mb contains also a lot of all the same that board either. I don't excpect the microproc to be broken, since
it turns on. Can you move your platter still easy?. My advice..if works again, sell it... The weight is is useless and makes it topheavy..
The feet don't do a thing....Everything is plastic and rebuilding costs a lot...and besides that.. Nobody has spareparts or a schematic. If i compare my technics to an can every part/ic/reprogram it
and stock they are simple, nice build , with way more metall parts...
The tonearms don't differ a lot, but you can buy lots of upgrades..not cheap btw...
good luck

Posted on Feb 15, 2014


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Posted on Jan 02, 2017

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SOURCE: Powere input

Some ST-150's have fuses, some do not. It would be on the rear of the unit, next to the power cable. If it is not there, then it might be under the turntable platter, on the main board. Not sure if you have a US or non-US model. So check both places. If you cannot find the fuse, then you don't have one. It's not that hard to locate. If this is the case, then your power transformer probably fried and will need to be replaced. This part runs about US$40


Posted on Nov 22, 2007

  • 1 Answer

SOURCE: Stanton ST150 turntable won't spin

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!

DJ Quartz

Posted on Feb 18, 2009

  • 8546 Answers

SOURCE: stanton turntable: STR8-30 need to

You look at the cartridge, determine its make/model number if visible and web search for that with 'replacement stylus'. There is no way we can tell what is installed on it.

Posted on Aug 07, 2011

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Stanton st.150 turntable sins unevenly

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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