Behringer Inuke 1000DSP, 3000DSP faulty, Fixed, Ring of death

Behringer Inuke 1000DSP faulty, the circuit diagram is the same as the 3000 but this PCB has a few extra components. red RING of DEATH This video is for entertainment purposes only Copying any of my modifications will void your warranty and could lead to electrocution. DO AT YOUR OWN RISK Loud ticking sound on Channel A, sounded like the Switch mode power supply not starting up? Circuit diagram and component datasheets available on a internet search faults Output Mosfets (IRFS23N15DPbF) T10, T11, T12 and T13, read as open circuit, little unusual as most Mofet's go short. Replaced with IRFS4227PbF C69 - 1uf 250v cap had gone all but short 2ohm IC15 (IRS20955(S)PbF) faulty Replaced IC15 and IC16 with IRS20957S Test equipment Standard Multi meter with diode check Multi-function tester T7