Electro Voice TG-7 protect mode

Hello, I have an Electro voice TG-7 which has gone into protect and mute mode after a loose nut caused some short circuit on the board. We have tried to follow the board and identify where the power is being lost at but no luck. Its  nice amplifier and would not want to write it off. Reached out to EV but they were not helpful. Anyone with the schematics which can help out to identify where the issue is or details on the voltages expected at different points