Hey guys and gals recently bought a turntable off of craigslist for cheap beacause the motor in it was cogging and it gave off a burning smell (not my brightest idea). I've done some stuff with pc boards and stuff but nothing with a motor, long story short, i broke the motor completely and now it wont even spin. I did some research and it's a brushless dc motor but i don't know what i did wrong. And i can't find the model of the motor to get a replacement. Does anyone know how to fix this? The turntable is an audio technica LP120 usb if that helps.

 

Nope. But I'll confirm your diagnosis, it's broken. I'll also make a prediction. It's going to stay that way.

 

View attachment 93302 View attachment 93303 View attachment 93304 View attachment 93304 Hey guys and gals recently bought a turntable off of craigslist for cheap beacause the motor in it was cogging and it gave off a burning smell (not my brightest idea). I've done some stuff with pc boards and stuff but nothing with a motor, long story short, i broke the motor completely and now it wont even spin. I did some research and it's a brushless dc motor but i don't know what i did wrong. And i can't find the model of the motor to get a replacement. Does anyone know how to fix this? The turntable is an audio technica LP120 usb if that helps. View attachment 93302View attachment 93303

It might be worth a try to ohm out the coils to see if one is open or a driver shorted.

 

It might be worth a try to ohm out the coils to see if one is open or a driver shorted.

I also see what look like Hall effect sensors -- three of them, HE100, HE101 and HE102. There might be three more sensors on the other side of the PCB...

Look closely at the PCB for a manufacture's name and model number. I doubt that you will find a replacement from other than Audio Technica.

 

I There might be three more sensors on the other side of the PCB...

You only require 3 Hall effect switches for BLDC motor commutation.
Max.