La-c781p Schematic !!hot!! -

Notice the line (Main Power Rail). In older laptops, B+ just went straight to the CPU buck converter. On the LA-C781P, trace the B+ line to PQ100 and PQ101 (the isolation MOSFETs).

(also known as ABL51) is a common motherboard revision for the HP 15-af line, typically powered by AMD Beema/Mullins processors La-c781p Schematic

Based on the available information and the schematic analysis, several potential applications for the La-C781P component can be hypothesized: Notice the line (Main Power Rail)

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: Key measurement points include the 3.3V and 5V always-on rails, often generated by the (PU2) power management IC.