I have a Galaga and We could smell a burning right before the monitor went out. What would cause this and is it repairable???? I dont know what the plastic clip held, or if it held anything, but what ever it was, it is now ash.
the plastic clip supports the chassis so it can't touch the metal frame and arc. you will have to find another way to support it and fix/jumper the traces on the pcb that got burned off the pcb.
nope that pcb can rub plastic all day and not burn the pcb edge right off the board. what happened is metal touched that spot and grounded it while it was powered which could have been almost anything such as a loose screw drops from above and wedges itself there and you hit power and fire works start. that is an example but regardless from the picture it looks like you may have several traces that need repair and once they are repaired then you will have to test and see if there is any components damaged from this.