Added the two 8 pin headers to the DIN board that will connect back to the main PCB. I connected the horizontal jump wire rows to the pin headers. I had some wires refuse to cooperate (that is, I can't control my shit) I'm surprised these joins work and despite that based on the pictures I think I might go back and clean these up.
MIDIBox SID Project Blog
Almost finished the DIN matrix today; one row left. The pads that I had accidentally solder when I just started soldering the board were a pain because they used the old crappy solder and didn't want to melt at first, but I managed to avoid shorts. Not so fortunately not all the pinheaders are connected according to my continuity testing,
My control surface layout continues to change. My earlier thought was to have the buttons on the perimeter of the keyboard area with the knobs in the middle (thinking its better to have the buttons closer to the LEDs) but now that I want to add labeling to the case it makes more sense to have the knobs on the perimeter so I can label them since knobs have no labels on them but the buttons, sort of, do.
I purchased another 6581 SID bringing me to a total of three 6581s and two 8580s. My ultimate goal, should I desire to go "all the way" would be 4 of each which would net me 2 6581 stereo pairs and 2 8580 stereo pairs.
First I did the diodes and soldering just the cathodes. The top row of cathode leads I soldered by themselves. Then for each row below I bent the cathode lead so that it touched the cathode lead of the diode below it and repeating that process built the columns for my matrix. Next I added the pin headers and following a tip I found online I held them down with some of the plastic foam my components shipped with.