im working on one of these amps and the issue is in the output section. ive traced it back to the ir2184s which looks to drive the output section. the amp is in protect when the output fets are in but they check ok.
Most amps that use this IC are self oscillating and won't have a drive signal with no output transistors in the circuit. If it's producing a drive signal, post photos of the waveforms on the gate pads for the output transistors.
ok used the secondary tap for grounding point. i get a nice square wave. now i have an issue with the neg side of the outputs the amp power up fine without them and has a clean wave on the gate resistor but goes strait into protect when i put them in.
I think you're going to have to provide better information for an amp that isn't very common. Tracing it back 'around' a component tells us nothing.
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