MTX 5601 weird noise

[Perry Babin]

Please rephrase if you're asking a question.

 

[ray9043]

Ok. Black probe on negative supply. Negative output its the same trace.

 

[ray9043]

Hi guys. I recently purchased a mustool m826, a multimeter with a 200khz oscope, very basic but i can see the signal at gates.

I think is on the positive side fets, they run hotter than the negative and the woofer moves the cone upwards(it moves downward if i change the output wires)

The output of the ne5532 on the output area are clean. But i can see some distortion on tge positive side fets gates.

First picture is the negative side, the other positive side

 

[ray9043]

Problem solved!! I cutoff the white silicon near the inductor and found 2 open resistor. I resoldered the center leg in the picture, bad joint.