The LA-E801P Rev 2.0 is a motherboard model, and schematics for specific motherboards are usually only available through a few channels:
How to Use the LA-E801P Rev 2.0 Schematic for Troubleshooting
Based on common laptop motherboard coding, here is what this board number likely refers to and how you can proceed. la-e801p rev 2.0 schematic
If you cannot find the file after 30 minutes of searching, reply with "boardview needed" and I can describe the exact resistor/transistor locations for common failure points without the diagram.
: Following the schematic to the charging circuit, he found a charred resistor, PR702. It was supposed to be 10 ohms; it was now an infinite void. The Resurrection 💡 The LA-E801P Rev 2
If 19V is present but +3VALW is missing, check the 3V/5V standby IC. Feel if the IC is getting hot. A short circuit on the +3VALW line (often a dead EC or shorted PCH) will pull this rail to ground, causing the regulator to overheat.
: If 19V stops abruptly at the first or second safety MOSFET (e.g., missing on pin 8 of PQB12 ), inspect the dual-transistor arrays like the PE642DT configuration, which often regulate gate logic controls. It was supposed to be 10 ohms; it was now an infinite void
Technicians frequently encounter specific component failures on this particular board revision:
ENE KB9022Q D, responsible for power sequencing, keyboard scanning, thermal monitoring, and fan control. Power Rails and Voltage Generation