That's really cool. What's still failing?
I'm reasonably sure the other PTMs are still clocked incorrectly. I haven't been able to work out where the "1CLK" and "2CLK" signals are coming from which clock the PTM on the Q133 or Master Card (I don't have the schematics in front of me, my TV is occupied at the moment).
As shown above, the AIC (Audio Interface Card) interrupt test fails, as the AIC interrupt is entirely unhooked up at the moment. The AIC schematics in the service manual are partly hand-written and the scan quality is rather poor, so I haven't been able to work out very much about the AIC. To be fair, neither was Phil, based on the September 2009-vintage driver.
The System 12 disks still report "Couldn't Load MIDI" and then hang.
The SMPTE/MIDI ("SMIDI") card is not yet fully hooked up, but I've made some good progress on it. It is however not related to the error that I just mentioned, because the System 12 disks don't even try to tickle FCA0, which is the access port to the SMIDI card.
The System 19 disk hangs without printing anything to the screen other than the initial loading message. It does, however, crater MAME's performance down to 9%. This is presumably because it's sitting in a tight loop, almost constantly toggling the selected memory map, which means every 10-20 instructions it's discarding and re-creating the memory map for CPU 1.