GC Controller Common grounding

[Crazy Inventor]

So my controller's grounding spot has gotten covered in gunk, don't know what it is but I'm trying to scrape it off. I posted here a few months ago and Spoleyo gave me a picture of all the signals and the common ground. The problem is that even after doing a continuity test for the left and right triggers, that common ground doesn't work and my tact switches don't work. Is there another spot for grounding the A,B,X,Y buttons because I do not want to use another controller.

 

[SonyQrio]

You can use any ground! The ground from the controller, console, or battery. It's all the same.

 

[morgrif]

@SonyQ
He was asking for another spot in the controller board to get GND voltage from...

@thread starter
Tried Ashen's controller scheme? or is youre controller non-oficial?

 

[SonyQrio]

Morgrif,

GND is not a voltage, it is ground, and it can be obtained anywhere. It doesnt matter where you get it, even if it's a third party controller. It only matters if the controller uses a different input method, I.E, the button being connected to a specific pin on the controller instead of ground. This is not the case on most controllers, and not the official controller.

I assume you're using the official controller?

 

[Crazy Inventor]

Yeah it's official. I've tried many other grounds but they don't seem to work and I've double checked the grounding wires on the switches.

On a side note, does anyone know what hat gunk on my original spot was caused by and how to to clean? I'm pretty sure it came from my solder tip(which I've replaced.)

 

[SonyQrio]

Probably dried flux, the bonding agent in solder. Some rubbing alcohol and a cloth will do fine.

I'd say check the input method of the controller and check for shorts.

 

[Crazy Inventor]

Thanks you sooooo much. The fixed has finally resulted in my finished portable!

 

[morgrif]

@Sony

sry to disapoint you but GND is a voltage level like any other.
If you are doing an electronical circuit of any kind and input 5V on youre GND line and 10V on youre +Vcc line it's exactly the same thing as putting 0V and 5V respectivelly on them.
GND is usually the designation used to refer to a reference level of voltage (usually 0V to simplify calculus) and it is "something" (sometimes called a "grid" cause of the old way of creating "ground") that can drain all current in if needed.

 

[SonyQrio]

Well, if you're 100% sure. I stand corrected.