i have an ebd that is giving me fits.
symptoms:
was working fine then stopped ejecting ball into outhole and it will drop the first target. the light next to the solenoid expander is off. it's not the bulb

playfeild gi is ok but none of the feature lights are on
there is a loud buzzing in the speaker that chages when I will top right connector on driver board
sound changes too has a static hiss then goes clear and says 7 ball over and over when I wiggle connector

it has an as-2518-16 driver regulator board in it. the connector on the top right I believe is j3 but it's not labeled on the board. it appeared that there was a loose conection and there were black marks on a few of the pins inside the red connector housing. I changed out the connectors and the headers on the board. same issue. if i wiggle it the connector it does the same thing. then I jumpered pin 13 to pin 25 on the board since theres a jumper on the connector. wiggling has a way smaller impact now but still no dice on the game working. the driver board is pretty hacked up and I think I want to replace it.

so after all this long explanation here is my main question. i have a centaur with a similar board and a n elektra with the same one as centaur. both work but the numbers are different. they are both as-2518-22. i think they are both newer games. does anyone know if they are backwards compatable? one or two of the connectors has more pins on one or the other cant remember which. would like to try a swap before I buy another board if possible. really appreciate you guys and all the help you have given me!

btw I have swapped in working lamp driver and aux lamp driver boards with no luck.

thanks man. i will do that but i have already rebuilt the one where I have isolated the (a problem) problem to. there are 4 others that have been rebuilt too. I did that one and the one belw it last night. plus one on the lamp driver board and mpu. any idea if I can swap the two different numbered driver boards/ I would like to get it working an d start rebuilding connectors at that point otherwise I am introducing more variables possibly

already did that. no dice. i think the light needs to be working for the seb board to work. light no worky. gi works but none of the feature lights work

wow! cool man. I will give it a shot...

did that and swapped in an aux lamp driver board. might try and replace those connectors too but it didnt seem to be over there. could be multiple problems though