| Component | Function | Page Reference (typical) | |-----------|----------|--------------------------| | PU401 (SY8288B) | 3V/5V standby regulator | Page 29 | | PU501 (NCP5911) | VCC_CORE controller | Page 32 | | PU701 (BQ24737) | Battery charger IC | Page 27 | | PU201 | 1.35V/1.5V memory supply | Page 28 | | EC IT8586E | Embedded controller | Page 20–22 | | PCH (SLJ8E/SLJ8C) | Platform Controller Hub | Page 9–13 |
Since high-power LEDs require a forward voltage often higher than the battery voltage (or a strictly regulated current), the LA-9413P utilizes a boost converter topology.
For the LA-9413P Rev 1.0, always try to get the Boardview (.BRD or .CAD) alongside the PDF schematic. It shows: la-9413p rev 1.0 schematic
This saves hours of searching blindly on the physical board.
When a capacitor (e.g., PC401) is shorted, the schematic shows you exactly which power rail it belongs to, allowing you to isolate the short using an injection method. | Component | Function | Page Reference (typical)
Modern laptop motherboards are multi-layer PCBs with hundreds of components. Without a schematic:
With the LA-9413P Rev 1.0, you can:
A typical LA-9413P Rev 1.0 schematic (usually a PDF with 40–60 pages) is organized into logical blocks. Here is what you will find inside: