*The "padhacking" thread*

i just hacked a psx pad. when i hold left, it randomly goes back to center. when i hold square it randomly goes on and off. i changed the wires, tried on different buttons, still happens. does this mean its the pcb?

Thats sounds familiar. It reminds me when I tried connecting a sanwa 5 pin connector to a pad PCB which doesn’t have a common ground for LEFT/RIGHT/UP/DOWN, the symptoms were just like you described. Double check if there’s a common ground on the PCB.

Could anyone give me some help with these buttons?

http://i39.photobucket.com/albums/e151/BrianBarrett/buttons.jpg

It’s the ā€œBackā€ and ā€œStartā€ buttons from a Mad Catz 360 controller.

I want to know how to wire them up.
How do you take them off and where is the ground on them? There doesn’t seem to be any soldering on the reverse of the pcb.

Thanks for any help!

I know this is possible since I’ve seen it i the stick thread.

Placing lights under clear buttons.

What do people use for this? LEDs? I thought about using christmas lights, since I don’t see why that shouldn’t work.

How do you get power to the light? Since at least 8 buttons ( 6+ start and select) are already soldered to the pad, where would you solder to if you want to use 8 LEDs?

try a different ground signal

Those are surface mount tactile switches; they wont go through the board, just connect to pads on the top of the board. You can try melting the solder on the left and right to work the switch off, but there isn’t really a need; it’s ok to leave the switch on. Solder some wires to the right and the left of the switch, and use those. You should be able to check with a multimeter to see if any of them are ground.

Cheers Toodles, thanks for your help!

i did that too, i even put the wire to a button, using the buttons ground, but the other wire on LEFT, still failed.

I have one of those of the exact same design. I plan on ripping the small PCB off the L and R wires and then just affixing those wires to my barrier strip. That one uses a common ground, right?

Is it true that Xbox 360 controller PCBs have a +5v line? (instead of +3.3v like a Playstation pad)

Also…
PCB from Madcatz purple Dreamcast pad
(shamelessly stolen from CD_Vision’s page)
Can anyone tell me where the +3.3v might be?

Can anyone confirm that the Mad Catz Microcon 360 controllers are commonly ground so long as they don’t have the reverse axis switch on the back? That’s what I read in one how-to guide, but I just wanted to confirm with others.

EVERY controller, except for ones that go to a PSX or PS2, has a line for +5v. Every single one.

Anyone have the a soldering diagram for the MadCatz 360 Arcade stick? If the Right and Left stick clicks were included, that’d be even more awesome.

Edit: The MadCatz 360 Arcade sticks just got knocked down to $20 at GameStop.

Is this going to pose a problem if I’m trying to make a dual-system (360 and PS1) arcade stick? Is that 1.7v within tolerance or will I need to wire something additional up?

Nope, check a post by Toodles (in this thread, a few pages back) that explains why the PCBs (PSX or USB) will be tolerant of the voltage difference.

I’ll post one up this week. It is a really easy job.

(Thanks for the attempt speedsterharry, but the post was in the ā€˜2 pcb’s’ thread.)
KOAB: Works fine. Read this: http://forums.shoryuken.com/showpost.php?p=4675058&postcount=55

Got a Madcatz Dreampad that I can’t make head or tails of( It seems every model is different). I know the obvious solder points, but I cant tell how many grounds there are, or where the 5v is for a P360. Any help would be appreciated.
----Front------
http://img.photobucket.com/albums/v392/KyosukeUrameshi/front.jpg
----Back------
http://img.photobucket.com/albums/v392/KyosukeUrameshi/back.jpg

I could point them out with MSPaint, but that wouldn’t be any fun.
Look at the end of the DC cable, the plug that goes into the DC. Theres a flat, wide exposed metal on the outside top. Take one end of your probe and hold it against the metal. Now, set the multimeter to resistance. Touch the other probe to each half of each button. One half of each button will show no resistance; that other will show infinite resistance. The one with no resistance is the ground, the one with infinite resistance is the signal. If you none of the halves show no resistance, its not a common ground pad.

As for the +5, you should have JFGI: http://mc.pp.se/dc/controller.html

Do you have a multimeter?

If you do, take one probe and put it on one side of a button pad and put the other probe on another button pad and see if you get resistance.

If one side of each button pad gives resistance against one side of each of the other button pads you know you have common ground.

If there is a red wire going to the back of the PCB from the plug, chances are like 63% that it’s your +5V. But to make sure, plug it into your DreamCast and check with your multimeter you will have to find the ground with your other probe and the multimeter will give you your +5 reading.

Hehe, down with your slowness!
(Yes, in a perfect world, red would be a positive voltage. For Dreamcast controllers though, its blue.)