A (often just called a "schematic") is a detailed electrical engineering drawing that shows exactly how every component on the motherboard is connected. It acts as the map of the board, allowing you to:
He muttered the phrase that had become his profession's Rosetta Stone. He typed it into the repair forums on his second monitor: "la-d402p schematic." la-d402p schematic
(Invoking related search term suggestions.) A (often just called a "schematic") is a
[USB-C Charger Input] ──> [Charging IC / DC-In Mosfets] ──> [+20V Main Rail] │ ┌──────────────────────────────────────────────────────────┴──────────────────────────┐ ▼ ▼ [+3VALW / +5VALW Regulator] [System Buck Regulators] │ │ [EC / Power Button] ──> [S5/S3 Sleep States] ──> [RAM Power Rail (+1.2V/+1.35V)] ──> [CPU Core Rail (+VCC_CORE)] turns on then shuts off
What are the ? (e.g., completely dead, turns on then shuts off, no display)
+19V or +20V_MAIN (Primary DC-in rail from the USB-C Charger)
To navigate the LA-D402P document effectively, learn Compal’s labeling conventions: