Is that’s a BluePrint/Betcom Games machine with a Pluto motherboard?
I’m not that familiar with the Betcom stuff, however if it is like BellFruit then you’ll need to have both doors open when powering up the machine, wait for the “Read Meters?” message, power off machine, remove and turn hopper upside-down for at least 5 seconds, reconnect hopper, power machine up again and it should automatically reconfigure the CC Talk encryption key between machine and hopper. Sometimes you also have to clear the NVR (non volatile ram) in the hidden test menu (using the refill key and holding down the 4th button on the right) if the ram has corrupted. I‘m not sure if it is a similar procedure for Betcom? Sadly, I don’t believe Betcom actually supply any manuals with their machines.
If you recently purchased the machine off an amusement company/supplier, you could always ask/email to see if they can also help.
