See exactly which signal triggers the next step in the boot process.
Repairing modern laptops without a diagram is nearly impossible due to the high density of components. The LA-H103P schematic provides: lah103p schematic new
Look for the "Always On" controller. If this IC is hot or missing its LDO outputs, the laptop will appear completely dead. See exactly which signal triggers the next step
Locate specific pads to measure signals like RSMRST# or PWRBTN# . Key Areas to Check on LA-H103P lah103p schematic new
Use a lab power supply to inject voltage safely if you find a short circuit.
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