QUOTE(Aggression @ May 28 2007, 11:05 PM)
I understand how thick the buttons are. What I am doing is putting 6 3mm leds in each button and all 30 leds will be powered by a 12v plug in cord (rat shack). I am removing the phone jack and in place putting the other end of the plug-in cord in its place.
Have you lit a button up yet to see if it's really something ya wanna go forward with? I'd hate to see ya pull off all this work then not like how the thing looks when it was done. I hope you're using a fairly decent 12v power supply. The minimum load that will be drawn (provided you're using the typical 3mm 20mA LEDs) if some idgit pushes all of the buttons at one time will be pretty high. Which in game play will never happen, but someone is bound to do it sooner or later.
All of that extra wiring to the actual button with the LEDs in it is going to change how the buttons feel as well unless ya take extra care that they have enough slack to not push or pull on them too much.
Here's the next button, the Red one. It get's done basically the same way the Green one did.
Here is the Yellow button, if it looks like it gets wired up different, that's OK, because it does. This button has a trace that's common to both Red and Yellow, but we need to cut that trace for the LED switch, then reconnect it so the button signal still gets thru. The spot labeled with the "2" will have 2 wires at the spot, then each one will go to the other White squares to make those connections.
The Blue button is fairly easy (compared to everything so far), just traces to cut and you have the contacts seperated for the LED switch.
The Orange button is the absolute worst, because of the way the traces are laid out, and if you can do it the rest are pretty easy by comparison.
AGAIN: If you read thru this entire thread and didn't lay the X-acto knife to your Guitar yet, this mod DOES present the possibility of making the controller less sensitive and you may miss a note here or there because of it. Doing it this way removes half of the contact are for the button you're pressing and using it as the switch for the LEDs. There are alternate ways of doing this, such as adding another button that will be pressed when the Guitar button is pressed, but that sort of method will change how the buttons feel. If I wanted to do this the "correct" way I'd use some type of magnetic switch (similar to what the Dreamcast controllers use
) so the contacts on the board are left completely alone, in fact that idea just occourred to me after I figured out the hard way of doing it, that's how it goes sometimes.
So if you're really serious about doing something like this, think about doing it with magnetic switches instead of hacking the board up, but that kinda thing comes with it's own downside as well, namely it's nowhere near as easy as hacking up the board and would require some thinkng and hunting for the correct parts, then the design and mounting and all to actually do it.