Hi all, running into an issue with my Paragon with Barakandl's aftermarket boards. I just bought both a new MPU and Solenoid Driver board and all was well when I first installed them. Game booted fine and played. It worked over multiple power cycles and games. The game also has an aftermarket rectifier board.

Then I tried to use the coin door test button and the game seemed to crash. Power cycling now and it won't boot. The diagnostic LED goes through 7 flashes. Then seems to stop and keep going through the boot sequence again.

5V on the MPU is right at 5. The Solenoid Driver board has all 3 voltage LEDS lit and there are no blown fuses on the rectifier board. I have reseated all connectors, but I have not yet replaced the smaller .100 connectors (all the .156 connectors have been repinned) Anyone have any ideas on where to start troubleshooting?

Tried both of these and still not booting. I'll go the repinning connectors route and see if that makes a difference.

Circling back to this since I finally got some contacts in from GPE.

I replaced the 5v and 12v contacts on the SDB connectors. I also replaced the 5v contacts on the MPU. I'm getting a rock solid 5.0v on both.

Voltages on the rectifier board read good. Voltages on the MPU read good.

The MPU goes through the flashes, I see it pop into what looks like attract mode for second, then it either crashes or resets.

The game was playing for a day after putting in the Barakandl SDB until i tried to go into the test menu.

Anyone have any ideas?

I have repinned J4 on the SDB and J3 on the MPU, which I thought would be enough to get the game to boot if they were the issue. I'm going to keep repinning the rest of the connectors, but I don't think any of them would keep the boards from booting?

Ok, swapped the MPU out and the game booted right up with a different MPU. Something must be either bad or set wrong on the Barakandl MPU.

Culprit ended up being a bad PIA. Tested with a Neoloch and replaced and the game fired right up.