With the monitor pulled, I could give the chassis a once-over. F901 was blown, but the HOT tested fine. I cleaned up the chassis and found the crack in the flyback that blew F901. I don't have one on hand, so I grabbed a different chassis, cleaned it up, replaced all the caps, sprayed deoxit on the pots, and did the 'curl mod'. Then adjusted it on the bench. (pic1)
I got it all back together, only to be greeted with a dead pcb again. Turns out that the repurposed Zaxxon eprom went bad almost immediately. I guess I shoulda known better.

Replacing the 210 brought the board back to life, but now the pokey was misbehaving, so I replaced that too. (pic2)
Working board. Working monitor. Now I just needed to adjust the picture size. Evidently, the monitor access port doesn't give you the ability to make those adjustments...
You have to adjust the monitor while it is outside the cab, sitting on the floor next to the monitor access door, where you can plug it in
through the access door. I guess that's a better solution than putting access holes on the bottom of the cab. (pics3&4)
So, the game is running like a champ now. The trackballs still need some attention, and a few cosmetic items like CPOs, endcaps for the feet, cleaned legs, and a bulb for the coin door (which I don't have because it's a "46" screw-in type that none of my other games use). I thought it was interesting that it used a green light bulb housing, instead of the black ones in my Centipede Mini. (pic5)
Pics attached:
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