Please check the pictures of waveform at the outer pin and center pin of main rectifiers. Why is there plenty ringing and center pin also has square wave with some ringing. What could be the fault. I seeing same ringing on output waveform also.
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For the top rectifier, the output (center terminal) goes to a rail cap. The other terminal of that cap should be the secondary ground. Confirm that it connects to the non-bridging speaker terminals.
With your scope, confirm that there is no signal/waveform/voltage on those terminal (other than noise).
With your scope, confirm that there is no signal/waveform/voltage on those terminal (other than noise).
It's not like the following amp?
https://www.onlinecarstereo.com/CarAudio/p_21138_Orion_HCCA-10002.aspx
2 channel amp?
https://www.onlinecarstereo.com/CarAudio/p_21138_Orion_HCCA-10002.aspx
2 channel amp?
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