La-g121p — Schematic

: Integrated Intel Gemini Lake processors, commonly the Intel Celeron N4000 or Pentium Silver N5000.

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The 19.5V input from the charging port passes through two protection MOSFETs (often referred to as PQ301 and PQ302 in Compal naming conventions). The charging IC controls these gates. If a short circuit exists down the line, the charging IC blocks these gates, preventing 19.5V from spreading across the VIN rail. 2. The Always-On State (+3VALW / +5VALW) : Integrated Intel Gemini Lake processors, commonly the

1. Motherboard is Completely Dead (No Power, No Charging LED) The charging IC controls these gates

: Compal (the "LA" prefix is their standard naming convention). Common Pairings : It is often searched alongside the , which is a similar variant for the same laptop chassis. Availability

The Compal LA-G121P is a widely used laptop motherboard found in several Acer Aspire series laptops, most notably the Acer Aspire 3 (A315-54, A315-54K) and Aspire 5 series. Driven by 8th and 10th Generation Intel Core processors (Whiskey Lake and Comet Lake architecture), this board is a common sight on electronics repair benches.