Hey all, I recently acquired a 2270 SN-11960 from someone who purchased several high end audio items at an estate sale. This 2270 is in the most pristine condition I have ever seen any 22xx unit to date. Like never seen the light of day inside and out. He said it was blowing main 3A fuse on power up. Today I am doing initial assessment. Nothing obvious internal, no burnt smell or components seen. 1. Installed a new 3A fuse. No fuse was there. 2. Removed Main/Pre jumpers. (Will this take Amp boards out of circuit?) 3. DBT power up and yes there is a short somewhere. Suspect either Main Neg 9000k Capacitor as is very discolored bottom when compared to the Pos cap as seen in the pic below or Output Transistors. Curious which is quickest way to isolate which or both? 1. Disconnect at Relay to caps? 2. Pull amp boards to get at transistors? Not wanting to do any unnecessary molestation of this unit if possible. Thoughts? Here is pic if Main Caps: I have a set of 10k Gold Tunes if need them.