When I face a fuse blower, I check all the output transistors for shorts between legs, also check to make sure the backsides of them are not shorting to ground at the heatsink.
I check the main rectifiers for shorts, in your case the four sides of diode bridge 1 over by the transformer.
And just to be sure, I would disconnect the power transformer wires from the circuit and leave them hanging in mid-air, then power up. Now with power going only to the transformer, does it still bow fuses?
I check the main rectifiers for shorts, in your case the four sides of diode bridge 1 over by the transformer.
And just to be sure, I would disconnect the power transformer wires from the circuit and leave them hanging in mid-air, then power up. Now with power going only to the transformer, does it still bow fuses?
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