Hello! I recently picked up a defective 2003 model BA115HP. It has a very loud transformer hum, noise in the speaker and a sharp bang in the speaker when I turn it off. I disconnected the secondary side of the transformer (to rule out the amp), still humming/almost vibrating, and a big "dang" when I turn it on. I removed the trafo from the "hot side" of the amp PCB (before the bridge rectifier), to rule out the two 0.0033 caps. Still humming. Is this a failing transformer, or will it do this anyway under no load?
I didn't dare to test more with the amp PCB connected. Any tips?
I didn't dare to test more with the amp PCB connected. Any tips?
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