- Joined Aug 30, 2023
I have pcb from mower which is protected by black putty, upon removal damage a few componentsBefore that it was not working as should, during ON it will spin motor in low speed for seconds and turn OFF. Its 40V brushed motor, should be 10A rated circuit as power defined 400W. Its pwm speed control board with some other features like temperature control for pcb and battery. For me it seems that maybe FR1004A could be faulty, other components for failure maybe mofsets? There is AP9579GP and MXP84d7AT. Possible that I get same board with same issues, how to check what is broken here?. Heatsink was removed here.
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