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View Full Version : Idea: modify old GT-x to use as 4 CTL and and 1 EXP



delt
07-10-2006, 10:32 PM
I was cleaning & fixing up my old GT-3 today, and i was wondering how well this would work without scrapping the good old '3'.

For the foot switches, i'd simply solder some leads from the 1 2 3 4 switches. You just need a ground wire and one wire for each footswitch.

For the exp. pedal, it's almost as simple: there's a tiny circuitboard under it with a stacked potentiometer controlled mechanically by the pedal, this pcb has a 3-lead cable connecting it to the main board, one red and two white. You just need to connect these 3 leads to a 1/4" stereo jack. Red goes to sleeve (ground), middle white one goes to ring (right channel), and the other white one goes to the tip (left channel).

Now i just need to find out if this will work with the pedals still part of the GT-3.

skultrap
07-11-2006, 03:30 AM
hey dude i noticed you're from mtl :) me too...do you play in a band?

aerial7
07-11-2006, 07:40 AM
Um, why wouldn't MIDI just work? I mean, once you've made the connections, it seems like you should be able to program the Pro to respond to the MIDI messages flowing from the GT-3.....

delt
07-11-2006, 12:30 PM
> hey dude i noticed you're from mtl :) me too...do you play in a band?

Nope.. not at the moment, and i don't have a great deal of stage/band experience. I always feel like i need to be "just a little bit better" to consider myself a "real" guitarist.

> Um, why wouldn't MIDI just work? I mean, once you've made the connections, it
> seems like you should be able to program the Pro to respond to the MIDI messages
> flowing from the GT-3.....

Is it possible to use the gt-3's Exp. pedal through midi? Does the gt-3 even send out midi data when you press the footswitches or change the exp pedal's position?

aerial7
07-11-2006, 09:52 PM
Is it possible to use the gt-3's Exp. pedal through midi? Does the gt-3 even send out midi data when you press the footswitches or change the exp pedal's position?

Dunno....but that is the question; if the answer is "yes", then you should be able to get the results you want without even powering up a soldering iron....