www.megadrum.info

by **TriggerThis** » Thu Jan 03, 2008 1:00 am

Well, I'm curious too, but just not enough to browse the crappy TI.com site for 4 hours to find ICs

by **Synthex** » Thu Jan 03, 2008 1:03 am

TriggerThis wrote:I want to modify it, I dont need the USB part, the LCD and the keys, and I'de like to add capacitors to each ICs VCC pins, and also some kind of buffering for the MIDI out.

How do you set the Megadrun without the keyboard and LCD ?

by **Synthex** » Thu Jan 03, 2008 1:06 am

TriggerThis wrote:Well, I'm curious too, but just not enough to browse the crappy TI.com site for 4 hours to find ICs

Not 4 hours, but only 3 !!!!

by **TriggerThis** » Thu Jan 03, 2008 1:10 am

Synthex wrote:How do you set the Megadrun without the keyboard and LCD ?

I'll use my LCD and Keys board to program it -- he just needs the standard MIDI GM notes for drums.

by **Synthex** » Thu Jan 03, 2008 1:22 am

TriggerThis wrote:I'll use my LCD and Keys board to program it -- he just needs the standard MIDI GM notes for drums.

Strange, and for other options ?

by **TriggerThis** » Thu Jan 03, 2008 1:38 am

What other options ? Once its programmed with his pads and hihat controler there's nothing else he needs.

by **tette500** » Thu Jan 03, 2008 8:40 pm

Hello,
I think I will make this PCB with 74HC4851 but I am not sure they are easy to found....
I think I will put standart 4051 and implement discretes BAT 85 and resistors on separate PCBs with jack sockets for pad input.....
Thank for your good PCB drawing.......
Thierry EPPHERRE

by **Synthex** » Thu Jan 03, 2008 10:32 pm

tette500 wrote:I think I will make this PCB with 74HC4851 but I am not sure they are easy to found....

CMS version is easy to find.

I already received my order and I will make a small adapter CMS <-> DIP.

by **elrules** » Fri Jan 04, 2008 10:37 am

Synthex wrote:
tette500 wrote:I think I will make this PCB with 74HC4851 but I am not sure they are easy to found....

CMS version is easy to find.
I already received my order and I will make a small adapter CMS <-> DIP.

Could you explain how to convert CMS to DIP? Thanks

by **Synthex** » Fri Jan 04, 2008 2:43 pm

elrules wrote:Could you explain how to convert CMS to DIP? Thanks

For example :

www.megadrum.info

PCB DESIGN - All In One 32 inputs with 74HC4851

Re: PCB DESIGN - All In One 32 inputs with 74HC4851

Re: PCB DESIGN - All In One 32 inputs with 74HC4851

Re: PCB DESIGN - All In One 32 inputs with 74HC4851

Re: PCB DESIGN - All In One 32 inputs with 74HC4851

Re: PCB DESIGN - All In One 32 inputs with 74HC4851

Re: PCB DESIGN - All In One 32 inputs with 74HC4851

Re: PCB DESIGN - All In One 32 inputs with 74HC4851

Re: PCB DESIGN - All In One 32 inputs with 74HC4851

Re: PCB DESIGN - All In One 32 inputs with 74HC4851

Re: PCB DESIGN - All In One 32 inputs with 74HC4851

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