Polycom 2200-17878-001 Power Supply for IP 321, 331, 335, 450

okay so we've got the two two nine seven fully adjustable 5000 volt power supply if you want to see the teardown and repair to this keep watching okay so I've taken the top off the high voltage 5000 volt fully adjustable power supply so we enter the board up here this is where the jack plugs into the back of the unit of the back and we've got three fuses along here we've got a mains rated board and this is X 2 mains rated capacitors naught point four seven us there and this is common mode choke it then enters the underneath block here so I'm guessing this there's a big block just underneath the mains board there and I'm guessing it's some kind of EMI suppression EMI filter there then comes out of the other side down the back here and enters a bridge rectifier where there's a couple of really big capacitors underneath this board mains rated capacitors there and then it comes along undern