sorry if I'm not accurate on the following description, CNC isn't my profession and English isn't my native tongue

My father has an old 1988 TRIAC CNC in his highschool workshop.
Recently, while milling, the machine stopped working and smoke came out of it.
Attached are some photos of the machine after the incident, My father says that the main board "burned".
I'm trying to get a clearer picture of the burnt area on the electrical board,
in order to (maybe) replace the faulty parts,
however I fear that the print itself is damaged.
Can anyone tell me if a replacement board is available and where I can hope to find one?
Any help would be gladly appreciated
Thank you,
Oded