My Star Trek next generation pinball has no sound with two different sound boards. Both boot to sound board interface error. I bought and installed new sound board and cpu roms in known working board. Both boards do the same thing. The ribbon cables I swapped out with a know working game and the sound works fine in Indy with that cable. I checked power and grounds to the sound card and they are fine. I do not know what else to check or try? If I put a pinsound board into it the game has sound and plays fine. Any suggestions would be great. I am two steps away from just buying another pinsound board, but wanted to see if anyone had any suggestions first???

I swapped sound board with my indiana jones machine, transferred the roms over and the sound board works fine in indy and I know the indy board works and that is now in sttng and it does same sound board interface error. I bought a rom set and it came with all but u8. I talked to supplier and he said to use my u8 rom. I really think its a rom issue. I am going to try and get a new u8 rom to eliminate that as cause. I swapped the cables for the 2 machines as well. Thanks for any ideas. Its driving me nuts!

I ordered original roms and it turns out he sent me silly ones. He is sending me the complete original roms today and I believe that the problem is in the roms. I swapped everything between the two boards and error message follows roms. If new roms dont fix it I am just going pinsound as its not worth any more effort.

The original sound board roms developed green powder in sockets and rom pins. Sound would cut in and out during game play. Looked like acid damage guessing something let go on board and it was not cleaned up by previous owner. I have had a pinsound in it for a few years, but I moved pinsound into a game I just sold. Figured I would try and fix original issue or worse case just buy another pinsound.

I did clean the rom pins, but I think when it was cutting out one or more got damaged as it made funky sounds and then quit all together. The board was severely damaged and The lower corner was in very bad shape. I cleaned it up put new sockets in board, but it has same interface error. It might work with new roms. I will post end results as I get there.

A new set of roms fixed the issue. It seems the first set I bought are no good as the replacements work fine.

Both boards had interface error and both did not make start up bong sound.