I was repairing an SMPS that had failed. I managed to get it up and runing but t he main voltage rail is 1/3 less than what it is stated at around ~24.3V.
I have marked the components I have replaced just in case with red dot, those with red and green have failed. All SMD components measure well.
The amplifier also failed in this device, it is powered by the supply that now I have at low voltage. I have replaced amplifier hybrids and the same thing happens either way. With amp it is 22V with out it is 24V.
I suspect LM3850 but I can not test it.
I have marked the components I have replaced just in case with red dot, those with red and green have failed. All SMD components measure well.
The amplifier also failed in this device, it is powered by the supply that now I have at low voltage. I have replaced amplifier hybrids and the same thing happens either way. With amp it is 22V with out it is 24V.
I suspect LM3850 but I can not test it.
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