La-g121p Schematic

The is more than just a wiring diagram; it is the Rosetta Stone for the Dell Latitude 5480/5490 motherboard. Whether you are chasing a missing +3V_ALW , a short on VCCCore , or a stubborn CMOS clearing issue, the schematic transforms guesswork into precise measurement.

Resistance to ground is 3 Ohms on the 3.3V rail. Diagnosis: Blown capacitor or shorted EC. How the schematic helps: Search the PDF for +3.3V_ALW . The schematic lists every single component on that net. la-g121p schematic

Once you press the power button (PWR_SW#), the EC activates the main VRMs: The is more than just a wiring diagram;