Any you have already taken from the main power coils.
Once VIN is stable, the standby PWM controller activates to create +3VALW (3.3 Volts Always) and +5VALW (5 Volts Always). +3VALW powers the Embedded Controller (EC) and the BIOS IC.
The motherboard schematic is a technical document used for diagnosing and repairing high-end laptops, most notably associated with the Dell Latitude 3410 and 3510 series. Developed by Compal/Wistron (often under the "Mockingbird-L" project name), these boards typically support 10th Generation Intel Core (Comet Lake-U) processors and may include discrete NVIDIA graphics. Availability and Access la-g121p schematic
It shows exactly how 19V from the DC jack is stepped down to 5V, 3.3V, and eventually the tiny voltages required by the CPU and RAM.
Based on field data from repair technicians, the LA-G121P exhibits several recurring weak spots: 1. Shorted Ceramic Capacitors on the +19V Main Rail Any you have already taken from the main power coils
: Commonly features integrated Intel Celeron N4000 or Pentium N5000 CPUs.
If your laboratory DC power supply trips or goes into CC (Constant Current) mode when connected to the LA-G121P board, follow this diagnostic process: The motherboard schematic is a technical document used
At its core, the schematic is a detailed technical diagram that shows every electronic component and how they are electrically connected. For a technician, it is the most critical tool for performing board-level repair. Without it, diagnosing faults on a modern multi-layer motherboard like the LA-G121P is incredibly difficult.
This motherboard is primarily found in budget-friendly HP laptops from the 2017-2018 era. When searching for resources, you'll find the LA-G121P associated with the following models:
Generated by the 3V/5V PWM regulator chip. These rails must be active the moment the power adapter is plugged in to provide standby power to the Super I/O (EC) chip and the BIOS IC. 3. Memory and PCH Rails ( +1.2V_DEEP_SUS , +1.0V_PCH )
Component names use strict abbreviations. PR means Power Resistor, PC means Power Capacitor, PQ means Power Transistor/MOSFET, and PU means Power Unit (IC Chip).