i have a marantz model ta-70 stereo system component . maybe someone can point me in the right direction or the circuit to check. i get a buzzing noise in the speakers and headphones i got it used i cleaned it the best i could i hope someone can help me . if you need more information please let me know .the noise is all the time . you can't even hear music if you raise the volume the noise get louder

Noise should be described in terms of function, setting of controls,
and when it occurs.

Is this what your TA-70 looks like?



Dave

Buzzing gets louder with the volume control - noise is picked up in the front end, radio or inputs.

Are you using the radio tuner or plugging in an external sound source, phono or tape?
If radio, unplug all wall warts, phone chargers, printers, laptops, etc. Also turn off LED lights in the room. If that does not affect the buzz, try the stereo in a different room, different outlets. You are checking to see if the noise is external, easy fix in most cases.

See if the noise changes with different sound sources. That might indicate an internal fault, maybe why it was for sale.