Well, I was going to follow mjk advise and replace all the capacitors on the power board to start with. So I removed the power unit to take some readings on the capacitors and information on their values. I placed it back in its original place but did NOT use any screws, and I plugged all the wire harnesses and power. I turned the mixer ON and same thing....faders jumping and noise...the whole enchilada. As I was about to turn it OFF I accidentally bumped my foot on the table and Zap...the power source moved from the small columns where it rests and since it was with power, it shorted an it went dead. I got really nervous and I switched the unit OFF. I froze for a minute, and I remember that expensive items like this one, should have a fuse. Short story long...(hahaha...) i unscrew the board where the fuse is and when I measure conductivity, indeed if had blown off, as expected. I ordered a few from Amazon and received them today. During my wait, I was already filing my cart in Digikey to order the capacitors. When the fuse arrived, I thought of installing the power supply just to test nothing wrong with it because if the short 2 days before.
So you all know, I’m a man of faith, and since this mixer is used for our youth group at church, I got a group of kids an my family praying so we can find a fix. When I replaced the fuse and installed the power supply, I turned the mixer ON and to mi amazement NO MORE JUMPING FADERS, no LEDs flickering, and no machine gun!!
Since I had done factory reset, I loaded a project from the card, tweaked some routing, and for the past 8 hours the mixer has been working FLAWLESS!!!
Was it a faulty fuse that was about to go out? Did the shirt reset some thing in the electronics? Was it a miracle? That’s what I’m thinking. Thank you Jesus!
Thanks to all who pitched in an gave their $0.02.