PSP analog help

[Sanctus]

I was about to fix my analog stick today, by soldering wires from the analog to the mobo, when I realized the mobo doesn't have any of the usual contact pads for the analog. So I was wondering where I can solder too without soldering to those contact pads.

[bustinthejustin]

You would probably have to find the traces leading to them, scratch the trace to copper, take some wire, solder to it, then to your analog stick.

[Alien_X]

You would probably have to find the traces leading to them, scratch the trace to copper, take some wire, solder to it, then to your analog stick.

How do you find the trace on the second/third internal layer of a motherboard?

[bustinthejustin]

  Please ignore my ignorance...

[Sanctus]

Hmm well is there a application to just disable the analog stick that works on 5.00m33?

[GhoSt]

do you mean the contacts have lifted off? under them should be like 2 very thin copper strips It may be posible to solder to them?

[bustinthejustin]

Hmm well is there a application to just disable the analog stick that works on 5.00m33?

Why disable the analog stick? If you can't solder the analog stick back on, you could just leave it and not use it, right? Or am I just being stupid again...

[Sanctus]

Um Yea there's nothing there...It's weird.

And no you can't. The analog stick just keeps moving by itself.

[Alien_X]

Why disable the analog stick? If you can't solder the analog stick back on, you could just leave it and not use it, right? Or am I just being stupid again...

#

Nope, you're being stupid again ( )

The psp is monitoring the analog values of the joystick, and it needs to read a certain resistance from the analog stick to establish that the analog is stationary (in the dead zone) and thus to stop moving the cursor/character etc.

You see the joystick contains two variable resistors in the form of potentiometers, when pushed in a certain direction the wiper shorts the circuit along a carbon strip which provides resistance (Different values at different points along it) , this voltage/resistance analog value is then read by the MCU, and interpreted as an X/Y value.

Clear now, little one?

[bustinthejustin]

Lol yeah. What do you major in...!? You know a lot about electronics.