amp protection light on

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My hifonics brutus bxi1606d 1600 watts super d-class mono only powers up in protection I've tried it without hooking up any speakers or jacks and that's all I get I've opened it and everything looks ok can someone help me fix it please ????
 
My hifonics brutus bxi1606d 1600 watts super d-class mono only powers up in protectio

Big Ic Circuit inside amp, output mosfet driver ic...That's all the issue...You may change it but be careful and first discharge all voltage reserve on cap's, DO THIS FIRST!
 
Hi,
Normally when the protect light it is "ON" is because it is possible that you have a high voltage in the output transistors. Since the speaker relay will not close you can no read the voltage at the speaker output connections. The only way to find out it is by checking the voltage directly from the output transistors "source" pin of the output transistors or if you can read it from the output relay. If you have mosfet for output transistor then from left to right the first pin is the gate, the middle pin is the drain and the right pin is the source. If you have voltage in any of them then one of the transistors is leaking.
 
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