Hi everyone
I just installed an alltek MPU card after redoing everything on bally's star trek pinball machine everything works except I have problems ...

the contact of "drop target D (bottom)" and "left middle inside lane" not recognized
the contact of "outhole" gives additional points after only the second ball
the contact of "collect bonus lane" triggers a continuous modulated sound which stops only when the ball is in the "outhole"
I checked all the diodes, the wires, the connections on the cards and changed all the contacts, nothing changes

by checking with "game self-diagnostic tests" all the solenoids are working correctly and when checking the switches, it indicates "01" which is the "drop target D (bottom)" I changed this contact and always the same

only the MPU card remains ...

thanks for the help

beautiful day

2021_08_09-12_01_33.pdf