Often hosts the PDF overview of the board, though downloading may require a subscription.
Integrated Intel Core i3/i5/i7 U-Processor (Socket BGA1356, ultra-low power consumption).
The schematic provides a detailed map of the hardware components and their electrical connections:
The La-e791p Rev 2.0 is a robust platform for engineers and hobbyists alike, offering a balance of performance, flexibility, and future-proof design. By understanding its schematic, you can adapt it to projects ranging from IoT gateways to robotics. Whether you're troubleshooting or building from scratch, this guide empowers you to harness its full potential. La-e791p Rev 2.0 Schematic Diagram
: Often utilizes the BQ24725 as the charging controller to manage the battery and main 19V input. Common Issues & Troubleshooting
Before you press the power button, the motherboard must generate the standby voltages to power the Embedded Controller (EC) and the power button circuit.
: Missing CPU core voltage is a frequent diagnostic challenge. Repair guides suggest checking the PWM controller and power FETs associated with the +VCC_CORE line. Resources & Downloads Often hosts the PDF overview of the board,
Powers USB sleep charging and auxiliary standby circuits. 3. Run and Suspend Rails
As documented in the Rev 1.0/2.0 notes, this board often houses AMD graphics with dedicated VRAM. The schematic provides paths for the GPU power rails, which only activate when high-performance graphics are required.
Standby: Check for the presence of the standby IC and the voltages on the coils. By understanding its schematic, you can adapt it
The laptop is dead. No LEDs. The power supply clicks or goes into protection. The Fix: Using the schematic, locate the DC-In Mosfets (usually AO4407 or similar) and the Battery Charging IC (often BQ24780S).
Locate the charging circuit on the schematic. Check the current sensing resistors and the dual MOSFETs responsible for routing power to the battery pack.
: Outlines the DDR4 SO-DIMM slots and interfaces for SATA 3.0 and PCIe (M.2) ports.
"Always-On" power rails. These must turn on as soon as the power adapter is plugged in to power the EC chip.