So i found a stray plasma cutter in the electronics lab. On inspection i found a few issues. A missing component in the front, probably an incandescent lamp. You also lost your power cord I noticed. that should be easy. But someone ordered a side of toasted capacitors. The blowout on the top, the torn up wrapping and the blackened charring on the pcb are all indicative of capacitors that have bit the dust.
Let me know who you are and what you plan to do to replace these four 250v 3300uF caps