Check the heavy components (transformers/connectors). The schematic won't show you a crack, but it will tell you which pins should have continuity.
Often small SMD parts that blow when a MOSFET shorts. Conclusion bm5291 ver 13 schematic verified
Always cross-reference the schematic with the physical board version number printed near the corner of the PCB before soldering. Check the heavy components (transformers/connectors)
The BM5291 series is most commonly associated with high-efficiency power management or specialized control boards. Revision 13 (Ver 13) usually represents a "mature" version of the hardware, where earlier design flaws—such as overheating traces or sensitive capacitor placements—have been rectified. Key Features of the Ver 13 Revision: bm5291 ver 13 schematic verified