I don't understand what's going on here.

I took a non-working 2518-22 (2vDC on 5V test points) and replaced the HV caps (correct polarity), and the LV section and VRM.

I was careful to follow correct polarity on the caps (those that were polarized) and I have repinned/replaced ALL connectors.

I know the MPU boots with a replacement Solenoid/driver board, but was trying to keep it original.

Is the voltage regulator module responsible for this? Looks like a national semiconductor LM323K. I don't see how in blue blazes I could have mounted that backwards as the securing bolts/nuts for the heat sink are offset and would presumably prevent that.

All the test points are showing negative DC voltages. For what it's worth, they're right where they should be, but negative.

Thanks!

You could very well be right - I'm more than a LITTLE crosseyed after repairing the MPU. I'll check. I hope it was just a boo-boo.

amxfc3s was exactly right - I think I should have just double-checked everything. I didn't catch that, and thought I had screwed something up.

I got the rebuild kit from Big Daddy, and I'm attaching pictures of the board and hopefully good front pics of the VRM.

I looked at the back of the VRM before, and saw a post about a bogus VRM and this did not appear to be the same type.

Thanks much Quench and amxfc3s . It was a stupid mistake.

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