Hey Guys, I'm just posting this in case it helps anyone else. My brother's MillerMatic 250 got hit by lightning and took out his control board (184316). He asked me if I could help fix it and after a lot of time and effort I got it going again. While trying to repair his board I ended up reverse engineering around 75-80% of the schematics to the Control board. I figured this may help some other people out there so I decided to post it. The schematics are drawn in KiCAD and there is a PDF in the zip file also.
MillerMatic 250 Control Board Schematics (184316): https://drive.google.com/file/d/1zLFReRTfIBT4rQuhJP1GTHsRwHcFVEmY/view?usp=sharing
Also it looks like some damage occurred on his spool control board so I did about 95% of the schematics for it since it's a much smaller board.
MillerMatic 250 Spool Gun Control Board Schematics (154068): https://drive.google.com/file/d/1QJD-A8TLX8bWLSbeEts0Xjt6E93FDV_F/view?usp=sharing
Sorry guys, but this is all the help I can be. I've already put way more time into this then it was worth, but it was for my brother and it was a fun little challenge. I'm releasing these into the public domain, There is no guarantee of the correctness of these documents, just my best effort as I went through the design fixing what was broke.
Anyway hope it helps someone.
MillerMatic 250 Control Board Schematics (184316): https://drive.google.com/file/d/1zLFReRTfIBT4rQuhJP1GTHsRwHcFVEmY/view?usp=sharing
Also it looks like some damage occurred on his spool control board so I did about 95% of the schematics for it since it's a much smaller board.
MillerMatic 250 Spool Gun Control Board Schematics (154068): https://drive.google.com/file/d/1QJD-A8TLX8bWLSbeEts0Xjt6E93FDV_F/view?usp=sharing
Sorry guys, but this is all the help I can be. I've already put way more time into this then it was worth, but it was for my brother and it was a fun little challenge. I'm releasing these into the public domain, There is no guarantee of the correctness of these documents, just my best effort as I went through the design fixing what was broke.
Anyway hope it helps someone.
