Akg P420 grouploop promblem

[yuaylooper]

Brother , what the screw ? i need to tight it ? Or cleaning the colour on it to stop groundloop promblem . I’m fear to do . Somebody please help me to comfirm . I dont understand the Fix with text

 

[yuaylooper]

promblem gone when i touch it’ hard but some time i move a mic or remove fromstand . Issue have come TT

 

[micolas]

On my black P420, with fine sandpaper I cleaned the paint a little in some places, for a better electrical contact, I tightened the nut well and the hum disappeared

 

[k brown]

Grouploops was my favorite cereal as a kid.

 

[yuaylooper]

On my black P420, with fine sandpaper I cleaned the paint a little in some places, for a better electrical contact, I tightened the nut well and the hum disappeared

Thank Micolas , can you explain " scartch some Places " it .... like this ?

i'm newbie sorry for stupid question , i'm fear and Care to work with PCB or Electic

 

[yuaylooper]

Grouploops was my favorite cereal as a kid.

Sorry Sir , My Bad

 

[yuaylooper]

Where should I start the First nut ?

 

[micolas]

Hi @yuaylooper !
I was referring to all the mechanical, metallic parts of the microphone body, which come into electrical contact, which form GND.
In my case, the outer parts of the metal body, which electrically shield (Faraday cage), did not make perfect galvanic contact because of the paint.

 

[yuaylooper]

Heeyyyy , thank all Now . first i'm cleaning the body steel (colour black around the bottom ) with sandpaper to see the steel skin ,

second , i'm tight the 5 screw to fit it agian .


andddddd,,, the Ground loop promblem has goneeeeeeeeeeeee Brooo ,
Love this Society Cheer !

 

[micolas]

Heeyyyy , thank all Now . first i'm cleaning the body steel (colour black around the bottom ) with sandpaper to see the steel skin ,

second , i'm tight the 5 screw to fit it agian .


andddddd,,, the Ground loop promblem has goneeeeeeeeeeeee Brooo ,
Love this Society Cheer !

@aaaaaaaa
Bravo! You solved the problem, simple, elegant and cheap.
The community of DIY addicts you're a part of is the coolest!

(by the way, my nephew, who grew up and lived in Germany, went on a trip to Thailand about two years ago and fell in love with your country and a woman and got married. He always sends me pictures of magnificent landscapes.
I envy him)