Repairing Mark Levinson No. 331 - Series 01

Repair attempt with this Mark Levinson No. 331 Doesn't Turn on , trips after 1 second of pressing the power button. Common issue with this is capacitor leak on the power supply , but appears to be not a case with this specific unit on the bench. If you have ideas let me know. Just opening the amp up is quiet a chore. Here's to hoping I fix this. Mark Levinson 331 Video 01