So my game blew J105 and i found Q41 and Q45 to be bad. Replaced them. On start up i started getting J112 and check fuses. Fuses check good. J112 looks good. Swapped out ribbon cable from Mpu to power board. On test points i have 12v on both regulated 12v and unregulated 12v have power. Leds are on and tested power on both fuses. On MPU swapped U20 and had no change. Opto board is on bottom side of playfield does not have the 12v led light. This error was not present before changing Q41 and Q45. Ive double checked connectors. Can anyone give me pointers or tell me which connection wire sends power to the opto board

Thanks found my issue