[DrKnow65]

Some of the solder rings (buss pins) are not used (I'll check the extra MM I have apart again because I fixed it once and had installed a bad part!?!?!?!).

Glad to see you are doing the "pin out" for the MM I've got a good layout for the power board but havn't put it to pic's yet (like your brain board) I'll try to put some time into it today to help identify which pins are what...

Some of the stuff I can tell you is that the power board is 4 layers (top you can see, positive plate layer inside, negative plate layer inside, and bottom you can see).

The brain board is only 3 (top, middle, and bottom).

You can see through the brain board with a good bright small flashlight.

The brain board on the unit I'm repairing was damaged pretty bad when it was disassembled for mods (before I got it) so I've got to do some ring/trace repair as well. I also have had to carefully drill down to the positive and negative plates where the cap's attach in the power board as their rings were pulled out too.

I'm not an electrical engineer (genius) like Artur, but I would like a good understanding of the unit anyhow...

I would like to repair the spare MM but I fear the brain board may be too damaged already. If I can't get it done I'll propably hit Artur up for a new brain (going to see the wizard...) or use it to do the stage 2 mod to my modded MM. We'll see.