This was cross posted to the Facebook Pinball Repair Group. My apologies if you have already seen it there.
Troubleshooting the lack of speech on a Gottlieb MA886 from a TX Sector. The Marco test ROMs work as expected and I was able to verify the inputs and outputs.
The reset is working on both cpus and the clock signals are working as expected.
The data and address lines are pulsing on both cpus.
The sound ROMs have been verified.
I have a 200B Inductive Amplifier but I cannot find an audio signal on this board to see if the speech is dieing somewhere in the audio path.
It looks if I could see audio present anywhere on this board it would be at B1.
Any suggestions on how I can figure out where the speech is lost? TX is not the same without it.
This board has J7 but not J8. This is what is specified in the schematic and matches a Robowar sound card