La-d401p Schematic May 2026

The LA-D401P schematic (also known as the BSE30) is the essential blueprint for the motherboard found in the HP Spectre 13-v000 series (including models like the 13-v000na and 13-v011nd). Produced by Compal Electronics, this board is part of the engineering family designed for ultra-slim laptops, specifically the "Arches" platform. Motherboard Specifications Overview

• C1/C2 smooth the incoming DC and provide a low‑impedance source for the boost converter.
• F1 limits inrush current during power‑up.
• D1 protects against accidental reverse connection.

: Often related to the USB-C charging controller or blown MOSFETs on the 19V rail. BIOS Issues la-d401p schematic

files to address frequent hardware failures in the HP Spectre 13 series: Charging Issues: The LA-D401P schematic (also known as the BSE30)

Memory: Most versions come with 8GB of built-in RAM; there are no traditional memory slots for upgrades. Graphics: Uses integrated Intel HD Graphics. C1/C2 smooth the incoming DC and provide a

Fault 2: Powers On, No Display (Fan Spins)

• Suspect: Memory training failure or VCC_GFX short.
• Check: All coils for voltage. Using the LA-D401P schematic, find PL901 (VCC_CORE) and PL902 (VCC_GFX). If VCC_GFX is missing, the GPU might be defective or the VR_EN signal is missing.
• Resolution: Reball the PCH or replace the BIOS (U23). A corrupted ME Region in the BIOS is common. You will need a verified LA-D401P BIOS dump.

Future work may include: