La-g851p Schematic Official

Multi-phase power rails dedicated to the CPU core cores and integrated graphics processing unit.

This is the bread and butter of laptop repair.

Complete Repair Guide and Schematic Analysis for the Compal LA-G851P Motherboard

The schematic lists resistors as "0603" or "0402". However, the LA-G851P uses many "01005" size components (barely visible). Use the Boardview's "Zoom to 400%" function to verify physically. la-g851p schematic

What specific is the laptop showing? (e.g., no power, turning on then off, no display) Which voltages have you already measured on the main coils?

Usually managed by a USB-C charging controller.

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High-side ceramic filtering capacitors (MLCCs) near the CPU or GPU phases frequently crack under thermal cycling and short to ground.

Powers the DDR4 memory modules and the CPU memory controller.

The LA-G851P is a compact, highly integrated motherboard designed by Compal (EDB10 series). It features soldered-down components including the CPU, RAM, and eMMC storage, which necessitates board-level repair or full replacement for most hardware failures. It is available in multiple revisions, with the most common being Rev 1.0 (A00) 2. Technical Specifications However, the LA-G851P uses many "01005" size components

Powering auxiliary subsystems, USB ports, and drive logic circuits.

If you are looking at the schematic for the first time, start by verifying these rails in order: (USB-C Source) +PWR_SRC (Main System Power) +3.3V_ALW / +5V_ALW (Standby Rails) +1.8V_ALW +VCC_CORE (CPU Voltage) Conclusion

Before you start soldering, remember these golden rules:

The EC is dead or the RTC circuit (battery/CR2032) is corrupted. Check the schematic for RTCRST# .

Manufactured by Compal, a primary original design manufacturer (ODM) for Dell, the LA-G851P is built on an ultra-compact, low-power system architecture.