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Technics mk2 motor problem


davorvenom

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I have Technics mk2 and i have this problem when i tilt it a bit on the side the motor goes crazy for a sec and then it goes back to normal. Im fixing them for a long time and i countered a lot of situations but this one i dont understand.

When the motor speed is unstable it is usually IC AN6675 and when its the pitch control than its AN6680.

I have checked for "cold" soldering conections but couldnt find one.

 

I need a bigger expert on this one or if someone can recomend a specific forum about this since im not a forum person.

 

Thx

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Guest rasteri

I've had that problem, turned out to be a loose connection on one of the position detection coils. I'd advise checking them first.

 

Failing that, you got an oscilloscope? Try comparing the waveforms on the various IC pins to the ones in the service manual.

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