The first part all sounds like power supply. You said it tested okay but you need 5.1 vdc to the CLC card and virtually no AC on it. Now that you’ve replaced the power supply make sure it’s adjusted to 5.1 on the CLC card, you can grab the right side of any of the larger caps for + and the GND stud for -. Set the 12v output to 10.75, at the power supply is fine. It’s important to know that all you need to get that watchdog LED on the CLC is a solid 5.1vdc, a good board, and good, compatible software. If you went from a pre BP4 CLC (BP1, BP2, or the older one that just has a part number) to a BP4 CLC your software is not compatible. If that’s the case I’d try installing the old board with the old software because I believe your problem was the power supply. If you have to use a BP4, and your original board was not one, you’ll need new software.
