Lae791p Rev 20 Schematic Diagram Verified 90%

Do you have access to a (.BRD or .CAD file) alongside the schematic?

Integrated Intel HD/UHD Graphics, with some discrete GPU variants (such as NVIDIA GeForce) depending on the exact board configuration.

Check the voltage on the current sensing resistor (often designated as PR302 or similar near the DC jack input).

Look for the input protection MOSFETs (usually a pair of N-channel or P-channel MOSFETs) right after the DC-in connector. lae791p rev 20 schematic diagram verified

Use the schematic to identify which capacitors are on the main power line (B+) versus secondary rails.

Typically features Intersil (Renesas) or Richtek controllers for CPU core ( +VCC_CORE ) and RAM ( +1.2V_DEEP_SUS ) power generation. Critical Power Rails & Boot Sequence

These voltages must be present before you press the power button. If they are missing, the power button will do nothing. Step 3: Embedded Controller (EC) Initialization Voltage: +3V_EC . Do you have access to a (

LA-E791P Rev 2.0 schematic diagram (also known by the Compal project name

In many online repositories and repair forums, schematics are often user-uploaded scans or reverse-drawn diagrams that may contain errors. A “verified” schematic has undergone a formal or crowd-sourced validation process. Verification typically involves:

[DC Jack / Battery] ──> [VIN / 19V Rail] ──> [3V/5V Always-On] ──> [EC / Super I/O] ──> [RAM/PCH Power] ──> [CPU Core VCC] Step 1: Main Power Input (VIN Rail) Look for the input protection MOSFETs (usually a

Critical verification: On REV 20, the gate drive resistor is , not 10Ω as in REV 18.

BRD/.CAD) to track down hidden components alongside the schematic?