I got an idea
I got an idea Posted on: 04.06.2011 by Marnie Pomeranz hey there im needing some help i got an old MIDI keyboard that i want to mod and add arcade buttons 25 lolbut i took the old MIDI keyboard apart and i found the circut bored to have black spots were the keys would hit and make the connection. so the question is what do a solder the buttons to??? P.S. its just a generic MIDI keyboard any help would be amazing | |
| Nelle Potrzebowski 10.06.2011 | Yeh that's where I decided to wait before pulling my keyboard apart. I realised it was going to cost alot just for arcade buttons and stuff, and because I'm a noob thought I'd better try something simple to start with. My numpad mod has 4 50p cheapo 30mm arcade buttons, a |
| Nelle Potrzebowski 10.06.2011 | Yeh that's where I decided to wait before pulling my keyboard apart. I realised it was going to cost alot just for arcade buttons and stuff, and because I'm a noob thought I'd better try something simple to start with. My numpad mod has 4 50p cheapo 30mm arcade buttons, a |
| Nelle Potrzebowski 10.06.2011 | Yeh that's where I decided to wait before pulling my keyboard apart. I realised it was going to cost alot just for arcade buttons and stuff, and because I'm a noob thought I'd better try something simple to start with. My numpad mod has 4 50p cheapo 30mm arcade buttons, a |
| Nelle Potrzebowski 10.06.2011 | Yeh that's where I decided to wait before pulling my keyboard apart. I realised it was going to cost alot just for arcade buttons and stuff, and because I'm a noob thought I'd better try something simple to start with. My numpad mod has 4 50p cheapo 30mm arcade buttons, a |
| Marnie Pomeranz 13.06.2011 |
Originally Posted by kilobytekaushik
[]2 which one of these is positve and negitve []3 []4 would i have to soilder 1 and 2 togetter and the 3 and 4 togetter than add the to the buttons??? |
| Nelle Potrzebowski 10.06.2011 | Yeh that's where I decided to wait before pulling my keyboard apart. I realised it was going to cost alot just for arcade buttons and stuff, and because I'm a noob thought I'd better try something simple to start with. My numpad mod has 4 50p cheapo 30mm arcade buttons, a |
| Marnie Pomeranz 05.06.2011 |
Originally Posted by Rob
i had a look a the thread and same again could not under stand it |
| Marnie Pomeranz 05.06.2011 |
Originally Posted by HerbStrike
|
| Karry Sappington 13.06.2011 | wait!,first connect 1 and 4 to 2 pins of the buttonn give it a try. i dont believe you need to worry about positive or negative because, the board will most probably have a main ground point of its own. try testing direction of current flow between 2 points with a multimeter by reversing the +ve n -ve lead and check for all 4 points. at some point it may show same value but opp sign(+ve -ve) . can you post a full pic of the board underside, where the diodes are connected. |
| Marnie Pomeranz 13.06.2011 |
Originally Posted by kilobytekaushik
[]2 which one of these is positve and negitve []3 []4 would i have to soilder 1 and 2 togetter and the 3 and 4 togetter than add the to the buttons??? |
| Karry Sappington 10.06.2011 | []1 []3 []2 []4 1 and 2 to one pin of arcade button , 3 and 4 to the other pin. |
| Nelle Potrzebowski 10.06.2011 | Yeh that's where I decided to wait before pulling my keyboard apart. I realised it was going to cost alot just for arcade buttons and stuff, and because I'm a noob thought I'd better try something simple to start with. My numpad mod has 4 50p cheapo 30mm arcade buttons, a |
| Marnie Pomeranz 10.06.2011 | cool i believe ill need to buy all the stuff im believeing about using like arcade buttons and flex sensors |
| Nelle Potrzebowski 09.06.2011 | Build log would certainly help me once I start mine. Have you tried the wiring for a button yet? Personally I would try 1 button first to make sure it works before doing the rest. So what's your goal? How many buttons? Any knobs or faders? What are you believeing about housing it in? |
| Marnie Pomeranz 09.06.2011 | do you all believe i should do like a build log or like a video??? |
| Marnie Pomeranz 05.06.2011 | so i need to bridge over using wire and the add the switch |
| Kristopher Salta 06.06.2011 | Don't hold me to ransom on this, but i believe that this is the correct way to do it: sorry about the image size |
| Marnie Pomeranz 05.06.2011 |
Originally Posted by Rob
i had a look a the thread and same again could not under stand it |
| Marnie Pomeranz 05.06.2011 |
Originally Posted by HerbStrike
|
| Nelle Potrzebowski 05.06.2011 | I see that all bottom left black pads share the same connection and the same goes for the top left, but how do you convert the 4 velocity sensitive pads to 2 connections for a button switch? EDIT: found this thread, looks like it's easy: http://www.djranking s.com/community /showthread.php?t=11070 |
| Estefana Musfeldt 05.06.2011 | you wanna ignore the black spots entirely trace the connects back to the solder points and de-solder each solder point, but you may have a problem with that as they are machine soldered so you need a very high heat to de solder not sure if you can get a commercial soldering iron, but i can see that there is a ground connection and a button connection so it is possible i will annotate your image if you can't see it, the ground connects to one of the black spots and all of the black spots in the same position and the signal connects to the other. |
| Marnie Pomeranz 04.06.2011 | Still don't know how to wire up the buttons so if any has an idea let me know |
| Nelle Potrzebowski 04.06.2011 | Well you're a step further than me. I'm doing a basic numeric keypad mod first to teach myself the basics like soldering and stuff, but always with a goal of ripping my keyboard apart later. |
| Marnie Pomeranz 04.06.2011 | I showed the idea to a friend and he told me to expose the copper on the board so that I have a better connection but I still don't know what I'm doing |
| Nelle Potrzebowski 04.06.2011 | Edit: I see you already filed down to the contacts on the far left 4 pads? What did you use? |
| Nelle Potrzebowski 04.06.2011 | [] [] - trigger 1 [] [] - trigger 2 L R My theory is that the velocity is calculated by the delay between trigger 1 and trigger 2. So I believe if you bridge the connection between both 'L' pads and also bridge both 'R' pads. It would convert the single connection 'L'-'R' to a full velocity switch. To get to the metal to solder onto I believe we need to file the board to expose it. This is all theory and I don't really know what I'm doing, apart from building up post count. |
| Marnie Pomeranz 04.06.2011 | so how do we go about adding arcade buttons to my keyboard??? |
| Nelle Potrzebowski 04.06.2011 | Is that m-audio? I'm looking to do the same to mine in future. Basically there are 4pads on the PCB, and 2 plungers underneath the keys to make connection. I believe that's because of touch sensitivity. |
| Marnie Pomeranz 04.06.2011 | These are photos of my keyboard circut board right under the Black and White keys |
| Joan Kollmorgen 05.06.2011 | Take a picture of both sides of the circuit board then it will be easier to help you. |
<< Back to Reviews of DJ equipment Reply