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USB controller hack HELP!!!
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johnnybleu:
Ok, well I've fiddled around a bit more (actually, a lot more) and I'm about to lose my mind here. This thing defies all logic.

Basically, I removed all wires from the boards, and the controller still thinks I'm pushing "left". It's just sitting there with a bit of solder on some connections. I then went a step further, and completely hacked off part of the board around the left button- just to make sure I was completely and absolutely breaking the connection.... It still thinks I'm pushing left. There's no way in hell the current is going through, and yet it's still registering.

I can only come to one conclusion.... Next to the left button was a surface mounted resistor (000). I'm thinking I must have accidentally cooked it with the iron. However, I'm no electronics expert, so I don't know if that could cause what's happening. My reasoning is that without the resistor, the current is flowing more.... no, wait. The current can't flow since I completely removed the resistor, and the track leading to and from it. This circuit should be broken!!!

At this point, I'm just gonna hook up the "left" direction to another button, and use some creative manipulation of Mame's default.cfg and try to trick it into thinking all directions are working as they should. Don't know if it's possible, but I have nothing left.

Thanks for all the help, but I fear this is a lost cause.
ghettodish:
Think you are going crazy? I'm having the same problem with two GPWizzes I bought!

Good luck with the re-mapping. I couldn't do it since mame thinks the left-direction is being pushed every time I wanted to choose a new input. I'm waiting for my I-pacs to show up...
CathalDublin:
Why dont you post up a few hi-res pictures of the board? someone might be able to spot something you may have missed

I gave up on keyboard/joystick hacks and bought a i-pac and never looked back, simple 5 minute setup on my machine and i've 2 joysticks 6 buttons per player and 1 coinslot

tikbalang:
i think there may be some solder between the rakelike printed circuit paths common in gamepads, where the pad makes the connection. try soldering closer to the root of the rakes, before they separate into tips.

these points may also be covered with carbon, which you did not rub out enough prior to soldering.

daywane:
not all game pads can be hacked.
I have hacked many.
broke about 6 before I got it down.
sidewinders and PlayStation's are best to hack.
The OLD sidewinder that plug into game port on your sound card are the VERY BEST. I mean allmost child proof
you do not even have to solder to the buttons. the board has holes with labels to what they are.
you can hook up to 4 sidewinders back to back. (Do Not Use extentions or  Y cable. ) ( Fries the board  :banghead: Been there done that) but the wires you solder in can be very long)
I doubt you can hook up a key wiz or any thing else in 5 min.  ;)
faster then a game pad hack but not as fun to do.
This is called
Build Your Own Arcade Contolls.
Hack the pads and have fun.
I have burned a few pads and still used them like you are saying with edit controlls in Mame.
just do not assign the stuck button on the pad to any thing
as far as Mame is concerned that lit button is not there.

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