PCB DESIGN - All In One v2.5 - 32 inputs with 74HC4851

[Synthex]

Here is my All In One PCB design with keyboard pullup resistors, to be etch at home.

Note : The double layer design v2.7 is better than this one !
v2.7 link : http://www.megadrum.info/forums/viewtopic.php?f=3&t=187

PCB v2_5 Top.gif

PCB v2_5 Bottom.gif

PCB v2_5 Top 600dpi.gif.zip

PCB v2_5 Bottom 600dpi.gif.zip

Schematic :

MegaDrum32 Synthex Schematics v2.5.gif.zip

All pinouts are the same as v2.3 and v2.4 version.

Synthex

[Juze]

Thanks for this design, we are going to use it next week, when we try to make the pcb again.
Btw, there's pictures of f***ed-up pcb on the other topic, if you haven't seen them.

[Juze]

My friend made it to me yesterday.This time it succeeded. I should get it from him, but I'm lazy He also made the drillings :O . I should post pics, when I go and get it

[Juze]

I have the pcb now, I'm now putting components that I already have to it. Synthex, could you make a part list for this pcb?

[lshutt]

Synthex, could you re-design this board to use 74hc4851 in smd format? but the rest keeping the same way. I know that already has a smd-to-dip adapter, but with this os kind ugly.
Thanks.

[Synthex]

I have the pcb now, I'm now putting components that I already have to it. Synthex, could you make a part list for this pcb?

You can see the list of components on the top of the PCB. It's the "same" as v2.4.

[Synthex]

Synthex, could you re-design this board to use 74hc4851 in smd format? but the rest keeping the same way. I know that already has a smd-to-dip adapter, but with this os kind ugly.
Thanks.

Sorry, but i don't redesign this board for SMD format.
It's difficult to do it in one layer, You can use smd-to-dip adapter.

[Juze]

Here are the pictures of the pcb, that succeeded this time. My friend also drilled the board, but he missed one hole, so I should drill that hole.
Ps. Dunno why the pictures look like the pcb was bended. Pics also look blurry, but so what.

-Juze aka Ghroath

[dmitri]

Looks nice. Make sure you don't have unwanted shortcuts/breaks.

[Juze]

Yes, Shorts and breaks have already been checked&repaired. Today I soldered some components, that I already have. Soldering joints were horrible, but they work. Also my solder iron sucks so bad. I think I'll buy digital solder-station sometime. With that soldering is WAY more easy and better.

-Juze aka Ghroath