FM TOWNS II HR model PSU

After a few years of searching for the keys to restoring the PSU of an FM TOWNS II HR model, no sign of any useful info nor tools.

All the capacitors were replaced, but still needs more work like schematics for my repairman to continue and finish its repair.

Using a picoPSU has to be a 16-pin ATX AC 100v. Other PSUs will blow up the motherboard.

Are there any repairmen in the U.S. who know how to fix an FM TOWNS PSU?