brogram

Also, The LEDs are working just fine.

Ok, Well I tried everything you suggested and also re-flowed a lot of pads and now the buttons and knob are working just fine. I can scroll through menus and everything. However, every time I know turn on the Sam it formats the bank sticks... I was able to upload the presets but then when I went looking for them they didn't show. Of course with the bank sticks formatting that's not the main issue. I also need a working link so I can really buy you a beer. Or maybe I'm missing something and Development is really just more drinking.

Also, I never did upload the default patches.

Nope, the buttons and knob never worked. I've never seen a screen that shows the bank sticks being formatted but maybe I was doing something else when that happened. The Patch that shows up on the screen is this: E002|PInt Ld Chnn.1 1***|Lead Patch Should I reload everything?

I went over everything again and everything is still checking out fine with the top control board. No shorts, all voltages are correct and all the soldering looks ace. But still the buttons and knob don't do anything... :cat: It responds to midi but it almost seems to be playing a song because any note I play will only trigger some sort of a sequence in time with how I play the keyboard and has pauses and sometimes noise bursts. :fear:

Celebrated too soon. Everything was looking great. All LEDs did what they were supposed to. All soft wear loaded. The Sid made noise and played with midi keyboard thought with the gate constantly on. Then i realized the unit was getting hot and no buttons were working and the knob as well. I opened it up and the Sids were super hot along with the heat sync. I did voltage checks on the control board and everything seemed to be tip top shape with much better soldering than the bottom board and no shorts. Deep breath. :hmm:

Victory! Thanks for the amazing help! I've never had so many problems on a build! Next time ill take it slow :sorcerer:

Also just found a short between 5V and Ground on 6N138... That should be it.

I just found a strange issue. When I insert a Midi Cable into {MIDI IN} the large ground pad for the DIN connector is shorted to the right round pad of J13 and this happens only when I use my MOTU Ultralight interface. Also the middle pad on J13 does not seem to connect with the large ground pad. When I use my M-Audio MIDIsport uno it no longer shorts ground to the right side round pad of J13 and the middle ground pad on J13 still does not connect to the large ground pad. I hope this makes at least a little sense.

I tried connecting the middle pins of JMO and JMI I wasn't able to get a feed back loop with either of the two 6N138s that I have one of them I know works for sure. But what I did get is a HUGE list on the MIDI IN: menu of [17183.031] 80 00 00 [ "" .032] 80 00 00 etc, etc. I also get a blinking LED on MIDI in but not MIDI out. Does this tell you anything Wilba? Best, Eric

I checked the JMI and JMO solder joints, the 6N138 and DIN sockets. Im still getting nothing sadly. I've also been through the MIDI troubleshooting. I guess this could mean Im missing a soldering issue?

Hello, I've gotten everything all soldered up. I get a "Ready." message on the screen. I get a message from midi out. The two issues I'm having now are no MIDI in and I'm using 6581s and getting 12.44v out of the IC sockets with a regulated power supply. Does anyone have any thoughts on that reading? Could this also be affecting MIDI in? Thank you, Eric