Try re-seating the connectors on the solenoid/driver board. Something similar happened on one of my machines and this simple step helped considerably.
The improvement may be temporary however, so you may need to re-pin the connections.
Good first step.

try pressing down on the fuses hard on both Power supply and PPB see if the clips 'Y' out ...if they do...then they were gone anyways and you found your problem. Replace them all with high quality ones. Also reflow all solders on the power supply and PPB board headers. They need to be done . Every data east game I have ever seen needs this done.
Reseating connectors is merely a temporary fix if at all.

What voltage do you measure from the affected coil lugs to ground? If it has a high power interlock switch inside the door push it in or pull it out until it locks...or raise the playfield on the kickstand and just close the coin door to take your measurements.

You have a meter and know how to take voltage measurements?

I cannot be any clearer on what you need to do. I am not asking you to do things that are not necessary or are futile and will not help. Check your fuse clips [press hard] and check connector headers by removing the boards and looking at the headers for bad solders etc. If you are not up to the task try to find a pinball tech near you. Check the pinside map. maybe a fellow pinsider is right by you.
It sounds like your 50 volt fuse clip is failing on the ppb or you have bad solders supplying voltage to said coils. VERY COMMON PROBLEM and a known weak spots on these games.
If it was a cap or transistor we would have sent you in that direction.
Good luck and post what you find and we can help.